Banking & OTP Abroad: App Settings That Keep Codes Coming

30 Oct 2025

Stuck outside your home country and your bank won’t send the one-time passcode? You’re not alone. Many banks still rely on OTP by SMS, which can fail when roaming is patchy, Wi‑Fi calling doesn’t register for texts, or your phone quietly blocks push notifications to save battery. The fix is simple: move your approvals into the bank app, keep push working, and set up fallbacks you control. This guide shows you exactly how to configure your phone and accounts so codes keep coming—without juggling SIMs or paying surprise roaming fees. We’ll cover push vs SMS, authenticator apps, backup codes, dual‑SIM/eSIM setups that actually work, VoWiFi caveats, and a pre‑flight checklist you can run in ten minutes. If you manage trips for a team, we’ll also point you to options that scale. Wherever you’re headed—browse eSIMs by region via Destinations—you’ll arrive ready to log in, approve payments, and get on with your day.

The problem: OTPs fail when you’re abroad

Here’s why bank codes often don’t arrive when travelling:

SMS depends on your home mobile network allowing roaming, VoLTE/VoWiFi interoperability, and local interconnects. Any piece breaks, codes vanish.
Some carriers don’t deliver SMS over Wi‑Fi calling when you’re outside your home country.
Phones aggressively throttle background activity on low battery or “optimised” modes, silently delaying bank push notifications.
Changing time zones can desynchronise time-based codes if your device time is set manually.
Dual‑SIM misconfiguration: data on a travel eSIM but SMS locked to a disabled home line.

The cure is to reduce dependence on SMS, configure your device for reliable push, and keep lightweight SMS fallback available.

The bank otp abroad app playbook: use in‑app approvals and authenticator codes

Most modern banks support app-based approvals or time-based one-time passwords (TOTP) in their own app. These work over any internet connection (mobile data or Wi‑Fi), avoiding SMS entirely.

Why push beats SMS when travelling

Works on any data connection, including hotel Wi‑Fi and travel eSIMs.
Not tied to your home phone number or roaming.
Faster and more reliable than international SMS, especially during number‑porting or network outages.

Step-by-step: move approvals into your bank app

Do this before you travel:

Install or update your bank’s mobile app on your primary phone. Sign in at home on a known network.
In Security/2FA settings, choose “App-based verification,” “Push approval,” or “Mobile app authentication.”
Register the device and complete any identity checks while you still have normal coverage.
Enable “Offline or one-time codes” inside the bank app if offered (many apps cache short-lived codes for poor connectivity).
Add a second factor: backup codes, a hardware token (if the bank issues one), or an authenticator app as a fallback.

Pro tip: Some banks offer TOTP (like an authenticator code) inside their own app. Prefer that to SMS where available.

Build a resilient 2FA setup before you fly

Checklist: your 10-minute pre‑flight

Switch 2FA to app‑based approvals for every bank and payment service.
Generate and securely store backup codes (print and keep offline; do not keep only in your email).
Add a second device as an emergency method (e.g., a tablet at home) if your bank allows multiple trusted devices.
Confirm your phone’s time is set to automatic network time and time zone.
Save your bank’s international contact numbers in your phone.
Set up a travel data plan so your bank app always has internet, e.g. Esim Western Europe for multi‑country trips, or country packs such as Esim France, Esim Italy, Esim Spain, or Esim United States. For multi‑region itineraries, see Esim North America.

Pro tip: Test from home. Put your phone in airplane mode, enable Wi‑Fi, turn off your primary SIM briefly, and confirm you can still receive bank push approvals over Wi‑Fi.

Configure your phone so bank apps can reach you

Push notifications rely on Apple/Google services. Don’t let battery savers or Focus modes strangle them.

iPhone - Settings > Notifications > [Your bank app] > Allow Notifications (Lock Screen, Banners), Time Sensitive On. - Settings > General > Background App Refresh > On for your bank app. - Settings > Battery > Low Power Mode Off when you’re expecting codes. - Settings > Focus: ensure your bank app is allowed to notify during active Focus profiles. - Settings > Date & Time > Set Automatically On.

Android (steps vary by brand) - Settings > Apps > [Your bank app] > Notifications > Allow; enable all relevant channels (e.g., “Security” or “Approvals”). - Settings > Battery > Battery optimisation > Don’t optimise your bank app and Google Play Services. - Settings > Mobile network > Data saver Off, or allow unrestricted data for the bank app and Google Play Services. - Settings > Date & time > Use network‑provided time/time zone On. - If your phone has a vendor “optimiser” (MIUI, EMUI, ColorOS, etc.), whitelist your bank app for autostart/background activity.

Pro tip: Keep at least 200 MB free storage so apps can update and push tokens can refresh.

Dual‑SIM done right: home number for SMS, eSIM for data

You can keep your home SIM active for voice/SMS while using a local eSIM for data:

Insert/activate travel eSIM for data (e.g., Esim Western Europe). Set it as default for mobile data.
Keep your home SIM on for calls/SMS. You may disable data roaming on the home SIM to avoid data charges.
In Dual SIM settings, set “Default for SMS” to your home line.
Ensure roaming is enabled for the home SIM if you need SMS fallback. Charges may apply.
Test: send yourself a regular SMS from another phone and confirm receipt while data flows through the eSIM.

If you’re coordinating teams or devices, explore pooled plans via For Business or partnerships via the Partner Hub.

SMS fallback: make it work when you must

Sometimes your bank only supports SMS (especially legacy systems). If so:

Verify international roaming is enabled on your mobile account before you leave.
Turn on VoLTE and Wi‑Fi Calling on your home line. Note: some carriers don’t deliver SMS over Wi‑Fi calling when abroad. If you’re not receiving codes on hotel Wi‑Fi, toggle Wi‑Fi Calling off and try again on mobile.
Avoid relying on temporary or VoIP numbers; banks often block them.
Keep your line reachable: avoid forwarding your number or disabling the SIM.
If your carrier supports it, prefer 4G/5G with VoLTE for SMS reliability as many countries have retired 3G.

VoWiFi caveats you should know

SMS over Wi‑Fi isn’t guaranteed when you’re outside your home country; carriers differ by policy.
Some devices say “Wi‑Fi Calling On” but still attempt to deliver SMS over the cellular channel. Without a roaming signal, texts won’t arrive.
If you’re on Wi‑Fi only and texts don’t appear, temporarily step outside for cellular coverage or insert a local SIM for data while keeping your home SIM active for SMS.

Pro tip: If your home carrier allows it, enabling data roaming just long enough to receive a code can help the phone register properly, even if your actual data flows over an eSIM.

Troubleshooting: not receiving bank codes abroad

Work through these in order:

Confirm connectivity: open a web page. If using eSIM for data, ensure it’s active and has signal. See coverage options by region via Destinations.
Try app approval: open your bank app and look for an in‑app “Approve” prompt or OTP generator.
Notification check: send a test notification (if your bank app supports it) or a message from another app to confirm push works. Disable Focus/Do Not Disturb temporarily.
Time check: set date/time to Automatic. Restart the phone to resynchronise push and TOTP.
SMS path: if relying on SMS, ensure the home SIM is on, roaming enabled, and it can receive a normal SMS from another number. Toggle Wi‑Fi Calling Off, then On; toggle airplane mode for 10 seconds.
Network selection: set the home SIM to automatic network selection. If that fails, manually pick a different partner network.
VoLTE toggle: disable and re‑enable VoLTE for the home SIM; some roaming partners need a fresh registration.
SIM priority: on dual‑SIM Android, set “Calling preference” for the home SIM; some banks require an outbound SMS handshake before sending OTP.
Fallback contact: use backup codes or your pre‑registered secondary factor to regain access.
Last resort: call your bank’s international number (from the app or website). Ask for temporary alternative verification (app push, email to pre‑verified address, or phone support).

Pro tip: Keep screenshots of your 2FA settings (no sensitive data) so you can explain your setup quickly to bank support.

Planning your connectivity for smooth banking

A reliable data connection is the backbone of app‑based approvals. Pick an eSIM with coverage where you’re headed:

Multi-country trips: Esim Western Europe or Esim North America.
Single-country city breaks: Esim France, Esim Italy, Esim Spain, or Esim United States.

Check regional options and fair-use notes via Destinations. For teams, create a standard “Banking & 2FA” pack in your internal travel checklist and provision eSIMs via For Business. Partners can streamline traveller onboarding through the Partner Hub.

FAQ

Will my bank’s SMS codes arrive over Wi‑Fi?
Not always. Some carriers don’t deliver SMS over Wi‑Fi calling when you’re abroad. If codes don’t arrive on Wi‑Fi, try with mobile coverage, or switch to app-based approvals.
Do I need roaming enabled to receive SMS?
Usually yes. Your phone must register on a roaming network to receive SMS to your home number. You can keep data roaming off and still receive SMS on many carriers, but check your plan for charges.
Are authenticator apps better than SMS for travel?
Yes. Authenticator or in‑app approvals work over any internet connection and aren’t tied to your phone number. They’re more reliable and generally more secure.
What if my bank only supports SMS?
Keep your home SIM active, enable roaming, and ensure VoLTE is on. Test before travel. If SMS still fails abroad, call the bank and ask for a temporary alternative (phone approval or in‑app activation).
Do time zones affect one‑time codes?
Time‑based codes (TOTP) need accurate device time. Set date/time to automatic. Manual time settings can cause codes to fail.
Can I use a travel eSIM and still get bank codes?
Yes. Use the eSIM for data and keep your home SIM active for SMS if needed. Configure dual‑SIM correctly and test before departure. Browse options via Destinations.

Next step

Set up your data lifeline now so app-based approvals just work when you land. Pick your plan by region with Esim Western Europe or explore all options via Destinations, then run the pre‑flight checklist before you go.

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Andes Highlights (3 Weeks): Peru–Bolivia–Chile–Argentina Connectivity

Planning a south america itinerary 3 weeks through the high Andes? This route stitches together Peru’s Sacred Valley, Bolivia’s La Paz and Salar de Uyuni, Chile’s Atacama Desert, and northern Argentina’s quebradas or Mendoza wine country—often by long-distance bus and a couple of short flights. Connectivity is different at altitude: coverage is strong in cities but drops in high passes and salt flats; bus Wi‑Fi is patchy; border towns can be blackspots. The smart move is an eSIM with multi‑country coverage, backed by offline maps, offline translations, and a simple routine for crossing borders by bus without losing service. Below you’ll find a practical, connectivity-first itinerary; checklists to prep your phone, apps and documents; and on-the-ground tips for staying online where it matters: booking transport, hailing taxis, backing up photos, and navigating when the signal disappears.If you’re transiting via Europe or North America, you can also add a layover eSIM to stay connected door-to-door. Start with our country list on Destinations, then follow the steps, and you won’t waste time chasing SIM shops at 3,500 metres.The 3‑week Andes route at a glanceWeek 1: Peru (Cusco, Sacred Valley, Machu Picchu) - Fly into Cusco (or Lima then connect). - Base in Cusco; day trips to Pisac/Chinchero/Maras–Moray. - Train to Aguas Calientes; Machu Picchu visit; return to Cusco or continue to Puno/Lake Titicaca.Week 2: Bolivia and Chile (La Paz, Uyuni, San Pedro de Atacama) - Bus/collectivo via Copacabana to La Paz. - Fly or overnight bus to Uyuni. - 3‑day Uyuni–altiplano tour ending in San Pedro de Atacama (Chile).Week 3: Chile and Argentina (Atacama to Salta or Mendoza/Buenos Aires) - Choose: - North: San Pedro to Salta/Jujuy by bus; fly to Buenos Aires. - Or South: San Pedro–Calama flight to Santiago; bus or flight to Mendoza; onward to Buenos Aires.Connectivity notes (quick): - Cities: generally strong 4G/4G+; 5G in major hubs (Santiago, Buenos Aires). - Altitude/rural: expect long no‑signal stretches (Uyuni, altiplano passes, Paso Jama). - Bus Wi‑Fi: often advertised, rarely reliable. Plan to be offline onboard. - Border regions: networks switch; a multi‑country eSIM avoids sudden loss.eSIM vs local SIMs for a 4‑country tripFor a route with multiple borders and remote legs, eSIM wins on time and reliability.What a multi‑country eSIM gets you: - One plan across Peru, Bolivia, Chile, Argentina (check coverage per country on Destinations). - No passport/SIM registration queues at kiosks. - Keep your home number active on the physical SIM for calls/SMS codes. - Instant top‑ups if you burn data on photos or navigation.When a local SIM still helps: - Long stay in one country with heavy data use (e.g., a month in Buenos Aires). - Dead zones where a different local network performs better (rarely worth the hassle on a 3‑week pace).Practical approach: - Use an eSIM as your primary data line across all four countries. - If you find a specific local network far better in one region, add a cheap local SIM and keep the eSIM as backup.Device readiness checklist (before you fly)1) Check eSIM compatibility and SIM‑lock status on your phone.2) Buy and install your eSIM while on home Wi‑Fi. Keep a PDF/printed copy of the QR code.3) Label lines clearly (e.g., “eSIM Andes Data”, “Home SIM”).4) Turn on data roaming for the eSIM; leave roaming off for your home SIM to avoid charges.5) Set up dual‑SIM rules: data on eSIM; calls/SMS default to home SIM if needed.6) Download offline: Google Maps/Organic Maps for all target regions; language packs (Spanish at minimum); bus/air tickets; hotel confirmations.7) Cloud backups: set to upload on Wi‑Fi only; pre‑create shared albums for travel companions.8) Test tethering/hotspot with your laptop/tablet.If you’re transiting popular hubs, consider a short layover eSIM: - USA connections: add an Esim United States or a broader Esim North America.- Europe connections: Madrid/Barcelona? Use an Esim Spain. Paris or Rome? See Esim France and Esim Italy. Multi‑country layovers? Try Esim Western Europe.City‑by‑city connectivity notesCusco & the Sacred Valley (Peru)Coverage: Good in Cusco city; variable in high villages (Maras/Moray) and along Inca Trail approaches.Tips: Download Sacred Valley maps offline; pin viewpoints and ruins. most taxis use WhatsApp—save your accommodation’s number.Machu Picchu/Aguas Calientes: Patchy to none at the citadel. Upload your photos later; don’t rely on live ticket retrieval.Lake Titicaca: Puno and CopacabanaPuno: Reasonable 4G; bus terminals crowded—screenshot QR tickets.Crossing to Copacabana: Expect a signal drop around the border; have directions saved offline.La Paz (Bolivia)Good urban 4G; the cable car network has decent signal but tunnels do not.Yungas/“Death Road” tours: Mountain valleys cause dead zones—share your emergency contacts with the operator, carry a charged power bank, and don’t plan remote calls.Uyuni and the Altiplano (Bolivia to Chile)Uyuni town: OK 4G; ATMs finicky—use Wi‑Fi for banking apps.Salt flats/lagunas: Assume offline for most of the 3‑day tour. Guides often carry satellite phones; agree a pickup time/place in San Pedro and preload your map route.San Pedro de Atacama (Chile)Town: Solid 4G; accommodations often have Wi‑Fi but speeds vary.Geysers, Valle de la Luna: Offline navigation essential; sunrise trips start before mobile networks wake up in some areas.Salta/Jujuy or Mendoza/Buenos Aires (Argentina)Salta/Jujuy: Good city coverage; quebradas have long no‑signal sections.Mendoza: City 4G/5G; vineyards outside town can be patchy.Buenos Aires: Strong 4G/5G; ideal for cloud backups and large downloads before you fly home.Border crossings by bus: step‑by‑stepThe big ones on this route: Peru–Bolivia (Puno/Copacabana), Bolivia–Chile (Uyuni–San Pedro via Hito Cajón), Chile–Argentina (Paso Jama to Salta or Los Libertadores to Mendoza).How to keep service and sanity:1) The day before:- Top up your eSIM data.- Confirm your plan includes both countries you’re entering/leaving.- Download offline maps for both sides of the border and your town of arrival.- Save bus company WhatsApp and terminal address offline.2) On departure morning:- Keep a paper copy or offline PDF of tickets, insurance, and accommodation proof.- Charge phone and power bank; pack a short cable in your daypack.3) On the bus:- Don’t count on bus Wi‑Fi. Keep your eSIM as primary, but expect drops near mountain passes.- If your phone supports it, enable “Wi‑Fi calling” for later when you reach accommodation Wi‑Fi.4) At the border posts:- Data may be unavailable. Keep QR codes and booking numbers offline.- After exiting one country and entering the next, toggle Airplane Mode off/on to re‑register on the new network.- If the eSIM doesn’t attach, manually select a network in Mobile Settings.5) Arrival:- Send your accommodation a quick WhatsApp when you’re back online.- Recheck your eSIM’s data roaming is on; confirm you’re on an in‑country network, not a weak roaming partner.Pro tips: - Dual profiles: If your eSIM allows, keep a secondary profile for a different network in the same country—helpful in border towns.- Cash buffer: Some border terminals don’t accept cards; download a currency converter for offline use.Offline survival kit (5‑minute setup)Maps: Download regions for Cusco, Sacred Valley, Puno, La Paz, Uyuni, San Pedro, Salta/Jujuy or Mendoza, and Buenos Aires.Translations: Download Spanish for offline use; add phrasebook favourites (bus tickets, directions, dietary needs).Documents: Save PDFs of passports, tickets, hotel addresses; star them for quick access.Rides: Screenshots of pickup points; pin bus terminals and hotel doors.Entertainment: Podcasts and playlists for long bus legs, set to download on Wi‑Fi only.Altitude and your tech: what changesCoverage gaps lengthen: Fewer towers at high altitude; valleys can block signal. Assume offline on remote excursions.Batteries drain faster in cold: Keep your phone warm and carry a power bank (10,000–20,000 mAh).Hotel Wi‑Fi may be congested: Schedule big uploads (photo backups, app updates) for big-city stays like Santiago or Buenos Aires.GPS still works offline: Your blue dot shows on offline maps without data—preload everything.Data budgeting for 3 weeksTypical traveller usage across this route: - Messaging/Maps/Bookings: 0.2–0.5 GB/day- Social and photo sharing: 0.3–0.7 GB/day- Occasional video calls/streaming: 0.5–1.0 GB/dayFor a mixed-use trip, plan 15–25 GB for 3 weeks. Heavy creators should double it and upload over hotel Wi‑Fi when possible. If you work remotely, consider a higher‑capacity plan and a backup eSIM; see our guidance on For Business.Practical route with transport and connectivity cuesDays 1–4 Cusco base: Strong city signal; day trips may be spotty—go offline-ready.Days 5–6 Machu Picchu: Expect no service at the ruins; sync tickets ahead.Days 7–8 Puno to La Paz via Copacabana: Border signal drop; re‑register networks after crossing.Days 9–11 Uyuni tour to San Pedro: Treat as offline; charge nightly; carry spare cables.Days 12–14 San Pedro: Stable in town; tours offline; top up data before Paso Jama.Days 15–17 Salta/Jujuy or Mendoza: Good urban 4G; rural patches are offline.Days 18–21 Buenos Aires: Strongest connectivity of the trip; clear your uploads and map downloads for the flight home.Partnering and stopover extrasHospitality and tour operators in the Andes: help your guests stay connected—explore co‑branded solutions via our Partner Hub.Transatlantic flyers: test your eSIM setup on a layover with an Esim United States or Esim Western Europe before hitting high-altitude blackspots.FAQs1) Do I need a local SIM in each country?No. A multi‑country eSIM covering Peru, Bolivia, Chile and Argentina is simpler and works well for a 3‑week pace. Consider a local SIM only if you’ll spend longer in one country and want the absolute best regional coverage.2) Will my WhatsApp number change with an eSIM?No. WhatsApp is tied to your registered number, not your data line. Keep your home SIM active for voice/SMS (roaming off if you wish), and use the eSIM for data—WhatsApp continues as normal.3) Can I hotspot to my laptop or camera?Yes. Enable tethering on your eSIM. Mind your data: cloud backups and OS updates can burn gigabytes—set them to Wi‑Fi only or schedule in big cities.4) What if there’s no signal on the Uyuni/Atacama legs?That’s expected. GPS still works offline. Pre-download maps and translations, carry a power bank, and sync plans with your tour operator before departure.5) Will I get roaming charges at borders?If you’re using a multi‑country eSIM with coverage in both countries, you won’t incur extra roaming fees from your home carrier. Keep roaming off on your home SIM to avoid accidental use.6) I’m connecting via Europe or the US—worth getting a layover eSIM?Yes. It’s an easy way to test your setup and stay reachable. Try Esim North America or country options like Esim Spain, Esim France, or Esim Italy for common hubs.Next step: Browse South America coverage options and build your plan on Destinations.

31 Oct 2025

Indonesia SIM Registration for Foreigners (2025): Passport, Tax ID & Where to Register

If you want a local data plan in Indonesia, you must register your SIM. For tourists in 2025, the essentials are straightforward: bring your passport, buy from an official outlet, and (if you plan to use a local SIM) register your phone’s IMEI with Customs on arrival. Registration is fast when you do it in the right place—airport counters or flagship stores for Telkomsel, XL Axiata and Indosat (IM3). Corner shops and unbranded kiosks can sell a SIM but often can’t complete foreigner registration, which is why many travellers end up with a non-working card until they visit a carrier store.You do not need an Indonesian tax ID to buy a SIM as a tourist. A local Tax ID (NPWP) is a resident requirement only. Expect instant activation once your passport and device details are captured, though some lines take up to a few hours. This guide explains exactly where to go, what to bring, how long it takes, and common snags to avoid. For a broader view of connectivity across the region, see our country pages under Destinations.Quick facts: 2025 rules at a glanceWho must register: Everyone using an Indonesian SIM, including tourists.IDs accepted for tourists: Passport (photo page). Some outlets also request your entry stamp/visa.Tax ID (NPWP): Not required for tourists. May be requested for residents with KITAS/KITAP.Where to register: Airport operator counters or official city stores (GraPARI for Telkomsel, XL Center, Indosat/IM3 Gallery).IMEI rule: If you’ll use a local Indonesian SIM, register your phone’s IMEI with Customs on entry.Time to activate: Usually minutes; allow up to 24 hours in edge cases.Number of SIMs per ID: Operators may cap how many numbers can be linked to one passport. Expect a small limit.Best coverage: Telkomsel generally leads for nationwide coverage, especially off the beaten path.Indonesia SIM registration for tourists: what you need in 2025To complete indonesia sim registration tourist requirements, you typically need:Passport: The physical passport you used to enter Indonesia. Staff will scan or photograph it.Entry details: Your entry stamp or visa (e.g., VOA/e-VOA) may be requested.Local contact info: A temporary address (hotel/Airbnb) and Indonesian phone contact are sometimes asked but not always enforced.Your phone: Keep it handy for SIM insertion, eSIM provisioning (where available), and test calls/data.IMEI registration: If using a local SIM, Indonesian Customs needs your device IMEI recorded when you arrive.Good to know: - Photocopies aren’t usually required; a physical passport is. - Staff complete the registration in their system. Tourists cannot complete the standard NIK/KK self-registration used by locals. - Some flagship stores issue eSIM profiles to eligible devices; availability and staff policy varies by location.Where to register: airport kiosks vs city storesBuying at the right place matters more than hunting the cheapest shelf price.Airport operator counters (best for immediate connectivity)Pros:Passport registration is done on the spot.Staff can help with IMEI questions and basic setup.English-speaking staff are common in major airports (CGK Jakarta, DPS Bali).You walk out connected.Cons:Packages can be pricier than in town.Stock may be limited during peak arrivals.Official city stores (often best value)Pros:Full service: SIM sale, passport registration, troubleshooting, eSIM availability in flagship branches.Broader plan selection, often better value than airports.Cons:Requires a trip across town and queue time.Opening hours vary; not 24/7.Look for: - Telkomsel GraPARI - XL Center - Indosat Ooredoo Hutchison (IM3) GallerySmall kiosks and convenience stores (proceed with caution)Pros: Cheapest sticker price, everywhere.Cons: Many cannot legally register a foreign passport. You may leave with a SIM that won’t activate until you visit an operator store. Not worth the risk for short stays.Step-by-step: from landing to connected1) Decide your approach- If you only need calls/data for a day or two and you already have roaming or a regional eSIM, you may skip a local SIM entirely.- If you want local rates for a week or more, a registered local SIM is usually best value.2) Register your device IMEI with Customs (if using a local SIM)- Before or on arrival, prepare your phone’s IMEI numbers (dial *#06#).- Use the Mobile BeaCukai app or the customs desk at the airport to submit your device details. You’ll be given a confirmation/QR code.- Present the QR/approval at the counter if asked. Tourists generally receive time-limited permission to use a local SIM on that device.- If you forget at the airport, visit a Customs office soon after arrival. Using international roaming does not require IMEI registration.3) Choose an operator- Telkomsel: Widest coverage, especially outside big cities and across islands.- XL Axiata: Good urban coverage and competitive pricing.- Indosat (IM3): Often attractive data bundles and promos.Tip: Ask specifically for a “tourist” or “foreigner” package and confirm voice/SMS inclusions if you need them.4) Buy and register at an official counter- Present your passport (and entry stamp if requested).- Staff will capture your details, insert the SIM or issue an eSIM, and complete registration in the operator’s system.- You may be asked for a local address (hotel is fine).- Keep the SIM starter pack and receipt; they include your number and useful USSD codes.5) Activate and test- Restart your phone after SIM/eSIM provisioning.- Check mobile data, calls, and SMS. APN settings usually configure automatically.- If data doesn’t work immediately, toggle airplane mode, then try a manual network selection.Costs, plans and activation timelinesPricing shifts regularly, but as a guide:Starter packs: IDR 50,000–150,000 for basic data with some local calls/SMS.Tourist bundles: IDR 100,000–300,000 for larger data (e.g., 15–35 GB) and bonus app data or local minutes.eSIM: Offered by some operator flagships; priced similarly to physical SIMs.Activation speed: - At an official counter, your line typically goes live within minutes once registration is submitted.- Network provisioning can take longer in busy periods; allow up to a few hours. Rarely, 24 hours.Top-ups and extensions: - Use the operator’s app (requires your Indonesian number for OTP), vouchers from minimarts (Indomaret, Alfamart), or pay at an operator store. - Tourist lines may have validity limits aligned to your stay. Ask how to extend if you’re in-country longer.Common snags (and how to fix them)SIM shows “emergency calls only” or no service:Check that IMEI registration was completed if you’re using a local SIM.Try manual network selection (Telkomsel/XL/Indosat) and restart the phone.Bought at a small kiosk and it won’t activate:Visit an official operator store with your passport to complete foreigner registration.No data despite signal bars:Toggle airplane mode, reset network settings, or update APN to default for your operator.Confirm your bundle includes data and is active.eSIM failed to install:Ensure you’re on stable Wi‑Fi, scan the QR again, or ask staff to reissue the profile. Some outlets can only issue physical SIMs to foreigners.Line deactivated mid-trip:It can happen if IMEI wasn’t registered or your package validity expired. Visit an operator store with your passport.WhatsApp number change:If you switch from a roaming number to a local number, use WhatsApp’s Change Number feature to keep chats and groups.Passport vs Tax ID (NPWP): what you actually needTourists: Passport only. You will not be asked for a local Tax ID (NPWP) to buy/register a SIM as a short-stay visitor.Residents and long-stay permit holders: Some outlets may request KITAS/KITAP and NPWP. Requirements vary by operator and tenure.If staff mention “NIK/KK”: Those are local IDs for Indonesians. As a foreigner, your passport is used instead.Business travellers and teamsNeed multiple lines, consistent packages, or centralised spend? Coordinate ahead of arrival to avoid airport queueing and ad-hoc plans.Explore enterprise options via For Business.If you’re a travel/tech partner supporting teams across regions, visit our Partner Hub for scalable connectivity workflows.Useful comparisons and onward travelHeading elsewhere after Indonesia? Keep your connectivity simple:North America trips: See our regional options under Esim North America or country picks like Esim United States.Western Europe swing: Compare plans via Esim Western Europe or select countries such as Esim France, Esim Italy and Esim Spain.For country-by-country rules and plan availability, start with Destinations.FAQ1) Do tourists need an Indonesian Tax ID (NPWP) to buy a SIM?No. Tourists register with a passport. NPWP is for residents and is not a requirement for short-stay visitors.2) Is IMEI registration mandatory for tourists?If you plan to use a local Indonesian SIM, you should register your device IMEI with Customs on arrival. Roaming on your home SIM does not require IMEI registration. Airport customs counters can handle this in minutes.3) Can I register my Indonesian SIM online?Not as a tourist. Foreigners must complete registration in person at an official operator outlet (airport counters or flagship stores) where staff scan your passport and submit the registration.4) How long does SIM activation take?Usually within minutes after staff complete registration; sometimes up to a few hours. Very occasionally, it may take until the next day.5) Can I get an eSIM as a tourist in Indonesia?Some flagship operator stores can issue eSIMs to eligible devices, but availability varies by city and store. Airport counters often favour physical SIMs. Ask the outlet in advance if you specifically want eSIM.6) How many SIMs can I register with one passport?Operators may limit the number of active numbers linked to a single passport. Policies vary; expect a small cap and ask the staff if you need more than one line.Next stepPlanning your trip and want the latest local guidance and plan options? Start with Indonesia under our Destinations hub.

30 Oct 2025

Pocket WiFi vs eSIM: Which Is Better (and Cheaper) for Travel?

Travellers weigh “pocket WiFi vs eSIM” for the same reason: reliable data at a fair price with minimal faff. Both connect you to local 4G/5G networks; the difference is how. A pocket WiFi is a rented hotspot you carry and charge, while an eSIM is a downloadable data plan that lives in your phone. This guide cuts through marketing to compare real‑world costs per GB, speed and latency, security risks, and multi‑device sharing. You’ll also find quick setup steps, a 60‑second chooser checklist, and regional notes for the United States, Western Europe and North America.Short answer: eSIMs are usually cheaper per GB, faster to set up, and easier to manage. Pocket WiFi can still suit groups who need to share to many devices or travellers with older/locked phones. If you’re eSIM‑compatible, a travel eSIM will cover most trips with less to carry, fewer fees, and better control over usage.Explore country and regional plans on Destinations.Quick verdict: who should pick what?Choose eSIM if:You have an eSIM‑compatible and unlocked phone.You value cost control (buy exactly the data you need).You want faster setup (scan and go) and no device returns.You’ll hotspot a handful of devices (check tethering is allowed).Choose pocket WiFi if:Your phone does not support eSIM or is carrier‑locked.You need to share to 8–10+ devices all day without draining your phone.Your employer mandates separate networking hardware.Tie-breakers:Battery: eSIM uses your phone’s battery; pocket WiFi is a second battery to manage.Loss risk: eSIM cannot be “lost”; pocket WiFi loss/damage fees can be steep.Coverage: both ride the same local networks. With eSIM you can pick plans that use top carriers in your destination (e.g. Esim United States, Esim France).Cost comparison: pocket WiFi vs eSIMThe biggest hidden difference is total cost per GB once you account for deposits, delivery/return, and “unlimited” fair‑use caps on pocket WiFi.Typical retail price/GB (indicative ranges)These are common market ranges for tourists buying short‑term plans. Always check current pricing for your destination on Destinations.Region / CountryeSIM price/GB (typical)Pocket WiFi effective price/GB (typical)NotesWestern Europe$1.5–3/GB$2.5–8/GB“Unlimited” WiFi often has 1–5GB/day high‑speed, then throttled. See Esim Western Europe.France / Italy / Spain$1.5–3/GB$2–6/GBStrong competition; local eSIMs are very cost‑effective. See Esim France, Esim Italy, Esim Spain.United States$3–6/GB$4–10/GBPocket WiFi often adds delivery and loss fees. See Esim United States.North America (US/CA/MX)$2.5–5/GB$5–12/GBRegional roaming on hotspots costs more. See Esim North America.How we think about “effective price/GB”: - Pocket WiFi day‑rates are divided by the daily high‑speed allowance (before throttling). Delivery/return and deposits increase the effective rate. - eSIMs are sold in fixed data buckets (e.g., 5–20GB). You pay only for what you buy; topping up keeps costs predictable.Hidden costs pocket WiFi renters often miss: - Delivery and return fees (airport counters can be pricier; postage both ways adds up). - Deposits and loss/damage charges (commonly $100–$250 if lost; cases and cables also chargeable). - Fair‑use policies that throttle after a small high‑speed cap (throttled data is often too slow for maps/video). - Late return penalties if flights change.Pro tip: If you’re a couple using ~6–8GB each over a week in Europe, two eSIMs commonly beat one pocket WiFi on cost—and remove delivery/return hassle.Speed, latency and reliabilityBoth pocket WiFi and eSIM ultimately use the same local 4G/5G networks. Differences are mostly practical, not theoretical.Raw speed: Similar. Your phone with an eSIM can connect directly to 5G; many rental hotspots are 4G‑only or support fewer bands, which can limit peaks.Latency: eSIM is often 5–20 ms lower because there’s no extra WiFi hop and router processing. It’s noticeable on calls/gaming, not much for maps.Throttling: Pocket WiFi “unlimited” plans frequently throttle after a daily cap. eSIM plans throttle only after you use your purchased allowance (or not at all, depending on plan).Reliability: One fewer device means one fewer point of failure. With eSIM you avoid WiFi drops between your phone and a hotspot. Pocket WiFi can overheat or crash under many clients.Pro tip: If performance matters (video calls, hotspotting a laptop), prefer an eSIM plan that includes 5G where available and test speed in the first hour; top up if needed.Security and privacy on the roadeSIM on your phone:Uses cellular encryption end‑to‑end; no shared SSID.Fewer attack surfaces than carrying a router with a web admin panel.Your phone’s hotspot can be password‑protected with WPA2/3.Pocket WiFi:Safe if configured well, but risks include default/weak passwords, outdated firmware, and rogue admin access if not reset.Physical loss exposes stored SSID/passwords; some models display the password on the screen.Shared hotspots in groups increase chances of shoulder‑surfing or unauthorised joins.Security best practices: - Change the hotspot/router password immediately. Use WPA2/3 and a unique SSID. - Disable WPS and remote admin on pocket WiFi. - Keep device firmware updated (if you control the device). - Prefer your own eSIM hotspot over random public Wi‑Fi in cafés/airports.Multi‑device sharing: eSIM hotspot vs pocket WiFiYou can share eSIM data via your phone’s hotspot, often to 5–10 devices, subject to plan limits.eSIM hotspot advantages:No extra rental hardware; share instantly with your laptop, tablet, or a partner.Many travel eSIMs allow tethering; check the plan details before purchase.One SIM per person keeps usage fair and avoids a single point of failure.eSIM hotspot caveats:Tethering can drain your phone faster. Carry a 10,000–20,000 mAh power bank.Some carriers block or cap tethering; verify in the plan FAQ.Pocket WiFi advantages:Designed to share (commonly 8–15 devices).Keeps your phone free and reduces its battery drain.Pocket WiFi caveats:One shared connection means if the owner walks away, everyone loses internet.Extra device to charge and carry; range is limited (hotel rooms fine, large villas less so).Pro tip: For families, mix approaches—primary travellers each run an eSIM; turn on a hotspot only when the group needs it. This keeps speeds high and batteries happy.Practicalities: setup, pick‑up and returnsHow to install and activate a travel eSIM (step‑by‑step)Check compatibility and unlocked status in your phone settings.Buy a plan for your destination (e.g., Esim Western Europe, Esim North America, or browse Destinations).Receive your eSIM (QR code or manual code) by email.On Wi‑Fi, scan the QR or enter details to add the eSIM plan.Set the eSIM as “Mobile Data” and keep your primary SIM for calls (if desired).Turn on Data Roaming for the eSIM line.Optional: Set the APN if provided. Restart the phone.Test: open a webpage and a maps app. If slow, toggle airplane mode or reboot.Pro tips: - Install the day before you fly; activate only when you land if the plan timer starts on first connection. - Set a data warning in Settings at 80% of your allowance.How to use a pocket WiFi (checklist)Before trip:Order for the correct countries and dates; confirm daily high‑speed cap.Arrange delivery/pick‑up (airport counter hours, hotel delivery).Note deposit, loss/damage fees, and return process.On trip:Fully charge the hotspot each morning.Change SSID/password; disable WPS.Share the password securely with your group.Monitor LEDs/app for cap/throttle status.After trip:Return on time, in full kit (device, cable, charger, pouch) to avoid fees.Keep proof of return/shipping.Business and team travel: what scales best?For teams, the tipping point is management overhead. eSIMs scale neatly: issue plans per traveller, tag costs to projects, and avoid device logistics. Pocket WiFi can work for event booths or shared tablets, but devices go missing and shipping gets messy.Centralised purchasing and usage controls are easier with eSIM dashboards. See Simology For Business.Partners and resellers setting up client connectivity can streamline with our Partner Hub.How to choose: a 60‑second checklistPhone supports eSIM and is unlocked? If no, lean pocket WiFi.Travelling solo or as a couple? eSIM usually wins on cost and simplicity.Need to share to 8–10 devices all day? Consider pocket WiFi (or carry a power bank for eSIM hotspot).Worried about deposits/returns? eSIM—nothing to ship or return.Crossing multiple countries? Choose a regional eSIM (e.g., Esim Western Europe or Esim North America).Security‑conscious? eSIM hotspot > public Wi‑Fi; avoid default router passwords.Regional notes and examplesUnited States: Coverage and speed vary by city and band support. Picking an eSIM that rides strong nationwide networks is key. Start with Esim United States.Western Europe: Competitive pricing and dense 5G make eSIMs excellent value. Multi‑country plans reduce SIM juggling. See Esim Western Europe.France, Italy, Spain: City and resort areas enjoy strong 4G/5G; eSIMs are typically the cheapest per GB. Compare Esim France, Esim Italy, and Esim Spain.North America: If you’ll cross into Canada or Mexico, a regional eSIM beats pocket WiFi roaming on cost and simplicity. See Esim North America.FAQIs eSIM as fast as a local physical SIM? Yes. eSIM is just a digital form of a SIM profile. Speeds depend on network coverage and plan, not the SIM form.Can I tether with an eSIM? Usually yes, but it depends on the plan. Most travel eSIMs allow hotspotting; check plan details. Some carriers cap tethering speeds or data.What if my phone is carrier‑locked? You may not be able to use a third‑party eSIM. Options: ask your carrier to unlock, use a pocket WiFi, or carry an unlocked secondary device for the eSIM.What happens when I run out of eSIM data? You either top up in‑app/online or buy another plan. Many travellers buy slightly more than needed to avoid mid‑trip disruption.Are “unlimited” pocket WiFi plans really unlimited? Typically not. Most have a daily high‑speed cap (e.g., 1–5GB) and then throttle severely. Check fair‑use policy specifics.Will a pocket WiFi work on flights or remote areas? It depends on terrestrial mobile coverage—just like your phone. No in‑flight cellular. In remote areas, neither option works well without coverage.Next step: Compare region‑ready travel eSIMs for your trip on Destinations.

30 Oct 2025