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Price Comparison: 8-Day Trip
| 7-Eleven / Airport SIM | eSIM (bought before flying) | |
|---|---|---|
| AIS unlimited 8d | 499 THB (~$15) | — |
| True INFINITE 8d | 449 THB (~$13) | — |
| dtac Happy 15GB 8d | 299 THB (~$9) | — |
| Travel eSIM unlimited | — | Yesim from $1.68/day / Airalo 10d $31 |
| Travel eSIM 10GB | — | Airalo $11 / Saily — see live pricing |
| Carrier eSIM online | — | thailandesim.com from $8.90 (dtac/True) |
| Thai number | ✅ Always | Only Yesim voice plans / carrier eSIMs |
| Passport registration | In person | Online or none |
| Home SIM stays active | ❌ Usually removed | ✅ Yes (dual SIM) |
Real 7-Eleven Prices (2026)
- AIS Tourist: 8d unlimited 499 THB (~$15) · 15d 699 THB (~$20) · 30d 1,199 THB (~$36) — Thai number + AIS-to-AIS calls
- True Tourist INFINITE: 8d unlimited 449 THB (~$13) — Thai number + unlimited local calls
- Cheapest: 8d 15GB tourist SIMs from 299 THB (~$9)
eSIM Wins When...
- You want data working the second you land (no jet-lagged airport decisions)
- You need your home number active for bank codes and calls
- Your phone is eSIM-compatible and carrier-unlocked
- You're transiting or visiting multiple countries
7-Eleven/Airport SIM Wins When...
- You want the absolute cheapest unlimited data + full Thai number
- You don't mind a 15–30 minute airport queue
- Your phone doesn't support eSIM
- You're staying 2+ weeks (local prepaid beats tourist pricing)
The Third Option: Carrier eSIM Before You Fly
thailandesim.com sells real AIS/dtac/True eSIMs online with email delivery — Thai number included, from $8.90, no airport queue. It's the best of both worlds if your phone supports eSIM: carrier prices + pre-departure convenience. Note the fine print: True's eSIMs only install once you're in Thailand, and outgoing calls/SMS need an in-store passport check.
Prices checked October 2026. 7-Eleven prices vary by branch; tourist SIMs require passport registration.