Wah so coincidence im about to leave for Phuket in 2 days, and ive just spent some time researching this too.
Got a few options from my experience, ive used all these methods in the past. Depends on your needs.
My main line is Hotlink 70, which comes with Roam Like Home feature, which is only for DATA. So my Hotlink data pool of like 3++GB i can use it in TH like im in Msia. Plus point, is that AstroGO (to watch epl) works when u are using this data. Astro blocks it if u use local WIFI or Thai SIM data.
In Jan25 i went to Bkk for like 6 days. I had to be able to be contacted by normal calls for work, so i had no choice, i just depended on Hotlink.
Good stable fast 5G data and i did receive some work calls which was charged separately, so i was billed an extra like RM 45 for this.
All my other holiday trips, when i dont need to be contacted by normal calls, i just do this.
1 day b4 i leave, buy this
https://www.agoda.com/activities/detail?act...YR&cityId=16056Look for this 【❗Limited time offer】Activate eSIM before June 30, 2025, the 10-day 50GB plan will be upgraded from high-speed 50GB to high-speed unlimited data!
So now tomorrow im just gonna buy this, activate it on my phone at home. Then turn the sim off.
When i get on the plane, turn off my Hotlink sim. Once i land, turn on the Thai eSIM and you will be good to go.
I used this method like 3-4 times for my TH trips last year. The data is solid, stable and fast. I can stream twitch/youtube/netflix etc without issue during my travels and transits, only astroGO wont work

I think some trips the data was better than the hotels wifi's so some trips i ended using like 60-70GB of data thru Hotspot. So i know it really is unlimited.
I believe you can save even further if you go to 7e and get a sim and do all that topup things and stuff (the 7e staff will help you do this)
But i think for like less than RM20 on agoda and you can do it all yourself from your house is a pretty good deal.
Oh and this is only if your phone can support eSIM..if you cant use eSIM, do the 7e method.
Dont buy at airport, the prices are inflated for tourists.. like 300-500 baht vs less than 200 bath at 7e
This post has been edited by james2306: Mar 10 2025, 01:45 PM