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Yes. Thailand has broad eSIM support through AIS, DTAC/True, and TrueMove H. GoSIM Thailand eSIMs work on any eSIM-compatible device including iPhone XS and later, Samsung Galaxy S20+, and Google Pixel 3+.

GoSIM Thailand plans connect to AIS, DTAC/True, and TrueMove H depending on the plan. All three are major national networks with strong coverage in Bangkok, Phuket, Chiang Mai, Koh Samui, and across the country.

For a 7–14 day trip with typical tourist usage (maps, social media, messaging, Grab rides), a 5–15 GB plan covers most travelers comfortably. If you plan to stream video, work remotely, or use your phone as a hotspot, consider a 20 GB+ or unlimited daily plan.

For most travelers, yes. Airport SIM counters in Bangkok can have long queues during peak travel. You also need to present your passport and wait for registration. A GoSIM Thailand eSIM is purchased before departure, scans in under a minute, and activates on landing — no counter needed.

Yes. Many GoSIM Thailand plans support top-ups. You can purchase additional data through the GoSIM website without needing a new QR code or reinstallation.

Yes. Major Thai islands including Koh Samui, Phuket, Koh Phangan, Koh Tao, and Koh Lanta have solid 4G LTE coverage from AIS and TrueMove H. Remote areas may have weaker signal, so downloading offline maps before heading to smaller islands is recommended.

GoSIM Thailand plans range from 1 day to 90 days. The plan duration starts from first activation — when your phone connects to a Thai network — not from purchase, so you can buy in advance without losing any days.