Bought the wrong plan? An unused, never-activated eSIM can be refunded in full within 30 days of purchase. See our refund policy for the full terms.
Fixed data plans give you a set amount of data, for example 1 GB or 5 GB, to use at full speed for the whole plan period. When it runs out, you top up or buy again. Pick this if you know roughly how much you'll use.
Unlimited plans have no total data cap for the plan period, but each day includes a high-speed allowance. Once you use that day's allowance, you carry on at a reduced speed. Reduced-speed data has a daily limit too, and if you reach it, data pauses until the allowance resets 24 hours after you activate the eSIM. Pick this for heavier or less predictable use. A fair-use policy applies.
Pay As You Go is not a plan at all. You add credit once and it comes off by the megabyte at the local rate as you use it, so you never pay for data you do not finish. Credit never expires, data pauses when the balance hits zero, and the same eSIM keeps working across every country we cover. It costs more per gigabyte than a plan, so pick this for light or hard to predict use rather than heavy days.
Add your other stops and we check whether one regional eSIM costs less.
See how a whole Thailand eSIM plan compares with a typical day of carrier roaming.
Roaming rate is an approximate mainstream day-pass price shown for comparison only — your own carrier's charges may differ.
Thailand's mobile market comes down to AIS and True. True also runs the dtac brand, and the two networks are fully integrated into one, so a True or dtac signal is effectively the same thing.
Most people in Thailand message on LINE: LY Corporation puts its Thai users at roughly four in five of the population. If you'll be chatting with hosts, guides or new friends, have it installed.
Every Thai mobile number has to be registered under NBTC rules, and operators like AIS register foreign customers by passport number, with unregistered lines at risk of suspension. Buying a local SIM means bringing your passport to the counter.
Numbers from UK travel advice.
It was super easy and ready to use really fast. Everything was clear and easy to understand. I can recommend it to anyone.
Booking took barely a minute and activation was super easy.
Regional & global eSIMs that also cover Thailand on one plan.
One eSIM for the whole trip — premium tier-1 networks across the globe.
One eSIM across 26 countries — no SIM swaps at the border.
One eSIM across 8 countries — no SIM swaps at the border.
Pick a row, watch the phone.
Everything you need to know before you buy.
Your Thailand eSIM connects automatically to AIS, TrueMove H, and dtac, switching to the strongest available signal. AIS and TrueMove H both cover the islands and the north well.

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