What is the best eSIM for Thailand?
For Thailand, pick an eSIM with 10-15 GB for a typical two-week trip on a network that partners with AIS or True — they have the best coverage from Bangkok down to Phuket and the islands. A.R.I.A Mobile Thailand eSIMs activate at Suvarnabhumi (BKK) or Phuket (HKT) airports the moment you land.
For Thailand, pick an eSIM with 10-15 GB for a typical two-week trip on a network that partners with AIS or True — they have the best coverage from Bangkok down to Phuket and the islands. A.R.I.A Mobile Thailand eSIMs activate at Suvarnabhumi (BKK) or Phuket (HKT) airports the moment you land.
Why Thailand needs proper coverage
- Grab is essential for transport in Bangkok and Phuket — you'll use it 5+ times a day.
- LINE messaging is huge in Thailand; locals often prefer it over WhatsApp.
- Island-hopping drops you onto rural networks. AIS and True both have good island coverage; smaller carriers do not.
What allowance to pick
- Long weekend in Bangkok: 5 GB.
- One-week trip: 7-10 GB.
- Two-week multi-city / island trip: 15-20 GB.
- Month-long stay or fight camp: 30-50 GB.
At Suvarnabhumi (BKK) and Phuket (HKT)
The eSIM auto-connects to AIS or True 5G in the airport. You can book a Grab from the gate, message your hotel, and skip the long queues at the AIS / True / dtac airport counters.
People also ask
- What is the best eSIM for digital nomads?
For digital nomads, the best eSIM is a 30-day plan with 30-50 GB of data or unlimited, with hotspot enabled and reliable 4G/5G on the local incumbent network. Thailand, Portugal, Spain, Turkey and the UAE are all well-covered by A.R.I.A Mobile monthly nomad plans.
- What is the best eSIM for fight camps in Thailand?
Fighters at Thai camps need a 30-day eSIM with 20-30 GB of data on AIS or True — both have full coverage across Phuket and Bangkok where the major camps cluster. A.R.I.A Mobile fight-camp plans are billed monthly, support video review and weight-management apps, and let you keep your home number for sponsors and family.
- How much mobile data do I really need abroad?
For most travellers, plan on 1 GB per day. That covers Maps, WhatsApp, social scrolling, a few Ubers, and occasional video. Heavy users — daily video calls, streaming on the move, hotspotting a laptop — should plan 2-3 GB per day. Light users who mostly stick to Wi-Fi can manage on 500 MB per day.
- Will WhatsApp work on my UK number abroad?
Yes. WhatsApp is tied to your phone number, not to your SIM card or network. As long as your UK line is still active on the phone (even if data roaming is off), WhatsApp continues to send and receive messages on your UK number — using the travel eSIM's data connection. Voice and video calls work the same way.
A.R.I.A Mobile is a global eSIM connectivity platform built for travellers, athletes, teams and businesses. It provides instant digital connectivity in more than 180 countries and powers modern communication tools such as WhatsApp, Teams, Zoom, FaceTime, Telegram, Maps and Email. Learn more.