Stop paying $15/day roaming charges. This guide covers every option — eSIM, local SIM, pocket Wi-Fi, carrier plans — so you can make the right call before you fly.
✅ eSIM (Airalo, Holafly): Best for most travelers. Buy before you leave, install on your phone, works in 100+ countries. ~$10–25/week.
✅ Local SIM at destination: Cheapest per GB, especially in Southeast Asia. Requires unlocked phone. Best for single-country, longer stays.
⚠️ T-Mobile/Google Fi: Free international data included (2G speed) — fine for maps and messaging, not for streaming.
❌ AT&T/Verizon international day pass: $10–15/day. Convenient, terrible value. Only use in a pinch.
Every legitimate way to get data abroad — honest pros, cons, and costs.
A virtual SIM card you download before you leave. Works on any eSIM-compatible phone (most smartphones made after 2018).
Typical cost: $5–25 for 7 days / 5GB·Best for: Frequent travelers, multi-country trips, eSIM-compatible phones
Pros
Cons
If you're going eSIM — here's what to know about each provider.
200+ destinations (provider claim; verify your exact destination)
200+ countries
160+ countries
170+ countries
200+ countries
215+ countries
Skip the roaming fees
The Yesim option below is an affiliate link, so we may earn a commission at no extra cost to you. Compare its destination coverage, device support, data allowance, activation, and refund terms with the alternatives above before paying.
Compare Yesim eSIM plansAffiliate link — we may earn a commission at no extra cost to you.
What actually works — and the gotchas — for each major travel region.
🌏 Southeast Asia
Cheapest local SIMs on earth. Thailand (DTAC/AIS), Vietnam (Viettel), Indonesia (Telkomsel) — under $5 for a week with 10GB+. Buy at the airport arrival hall.
🇪🇺 Europe
EU roaming laws mean a SIM from any EU country works across the entire EU. Buy German O2 or French Orange at arrival; it works in Spain, Italy, Greece, everywhere.
🇯🇵 Japan
Japan SIMs are data-only by law unless you register a local address. Buy a tourist data SIM at the airport (IIJmio, Sakura Mobile). Voice calls: use WhatsApp/Facetime.
🇺🇸 USA
T-Mobile prepaid tourist SIMs at Walmart ($30 for 30 days, 15GB). Or H2O Wireless, Mint Mobile, or an eSIM from Airalo works well.
🌍 Middle East & Africa
eSIMs work well in UAE, Saudi, South Africa. For local SIMs, buy on arrival — Zain (UAE), Etisalat, MTN (Africa) are reliable. ID always required.
🌎 Latin America
Claro and Movistar cover most of the continent. eSIMs work in most major cities. For remote areas (Patagonia, Amazon), signal is limited regardless of plan.
✅ iPhone
Settings → Cellular → Add eSIM. Any iPhone XS or newer supports eSIM.
iPhone 14 (US models) is eSIM-only — no physical SIM slot.
✅ Android
Settings → Network → SIM → Add eSIM (varies by brand). Google Pixel 3+, Samsung Galaxy S20+, most flagship Android from 2020+.
Budget Android phones often lack eSIM — check your model's specs.
⚠️ Is your phone unlocked?
Even eSIM-compatible phones may be carrier-locked. Check: Settings → Cellular → Carrier Lock (iPhone). Contact your carrier to unlock if needed.
📶 Before you buy
Check that the provider supports your specific phone model. Airalo and Holafly both have compatibility checkers on their sites.
Download offline maps
Google Maps and Maps.me both support offline downloads — saves gigabytes of navigation data.
Use hotel Wi-Fi for heavy tasks
Video calls, large downloads, and streaming — do these on hotel Wi-Fi, not your data plan.
Turn off background app refresh
iOS and Android sync apps constantly. Turn off background refresh for all apps except messaging.
Disable auto-play videos
Instagram, TikTok, Twitter — disable auto-play. A 5-minute scroll can consume 200MB.
Use WhatsApp for international calls
WhatsApp, FaceTime Audio, and Telegram calls use a fraction of the data of a regular voice call.
Connectivity sorted — now plan everything else. Budget, visa, health, packing, and a full AI itinerary.