eSIM vs Local SIM Card: Which Should You Get?
Travellagio · 5 min read
Two options for getting mobile data abroad: install an eSIM before your flight, or buy a physical SIM card when you arrive. Here’s when each one wins.
eSIM: install before you fly, online immediately
Pros:
- Buy and install from home — you’re online the moment you land
- No SIM swap, no losing your home SIM card
- Dual SIM: keep your home number active for SMS
- Easy to buy more data if you run out
Cons:
- Slightly more expensive per GB than a local SIM
- Data-only (no local phone number for calls)
- Requires a phone that supports eSIM (2019+)
Local SIM card: cheaper, but more hassle
Pros:
- Cheapest data rates (especially in Asia)
- Local phone number (useful for local bookings, deliveries)
- Works on any unlocked phone
Cons:
- Need to find a shop/kiosk on arrival
- Language barrier during setup
- Physical SIM swap — don’t lose your home SIM
- Some countries require passport registration
When to choose each
| Scenario | Best choice |
|---|---|
| Short trip (under 2 weeks) | eSIM — convenience wins |
| Long stay (1+ months) | Local SIM — savings add up |
| Multi-country trip | eSIM — one regional plan covers all |
| Need a local number | Local SIM |