Easy option is to get SIM card from the Airport. It’s pre-activated and ready to use.
Sim cards with talktime and datapacks are available from 200BHT onwards.
The sim-card I bought from airport had :
- 5GB 4G data, and then unlimited data at a lower speed
- 100BHT talktime (you can also make international calls)
- 1 month Validity
It was more than enough for 5days 🙂
Just give them the phone, they’ll insert the sim-card and activate it in less than 5 mins.