Skip to content

SIM cards and connectivity

Thailand has strong, cheap mobile data. The main networks are AIS and the merged True/TrueMove H–dtac group (still sold under both the True and dtac brands), all with good 4G/5G coverage across populated Samui; signal can drop in the mountainous interior and on boat crossings. Tourist prepaid SIMs (and eSIMs) with generous data allowances are sold at the airport, convenience stores, and phone shops; buying a physical SIM requires showing your passport for registration. Wi-Fi is near-universal in hotels, cafes, and restaurants, though speeds vary. A local SIM or eSIM is strongly recommended for maps, ride apps, translation, and messaging. Airport SIM kiosks are convenient but tend to cost more than in-town shops.

Verify live

SIM/eSIM plan prices and data allowances change — verify live / handled by a human.

connectivitysimesimmobile-datawifi

General information, not legal advice. Laws and practice change; for a decision that matters, confirm with the authority named in the sources or a licensed professional.

SIM cards and connectivity · Thaissistant