Yo
Best answer
8
AIS or True at KBV arrivals — tourist SIM 7–30 days (300–450 baht), passport copy. Airport slight markup vs Ao Nang 7-Eleven but worth immediate Grab and tour WhatsApp. eSIM (Airalo) fine if supported. Coverage good on islands day trips. Load Grab before van queue. DTAC third option, similar Andaman coverage.
4
AIS airport counter 5 min — tourist 15-day ~350 baht, staff set APN.
2
True promo 199 baht sometimes at mall — skip hunt day one.