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Island in Rayong, Thailand

Internet in Koh Samet: speed, SIM cards and coworking

Updated October 2026Sources
299 MbpsMedian download

Is the internet good in Koh Samet?

Median fixed broadband in Thailand is 299 Mbps and mobile is 134 Mbps (Speedtest Global Index, 2026-08). Café wifi on Hat Sai Kaew is workable but slow at weekends; mobile data is often a better backup.

Getting online in Koh Samet

Details
Home fibreFew long-term rentals; resorts have fibre or satellite of varying quality. Ask before booking if you need to work.
Cafés and coworkingCafé wifi on Hat Sai Kaew is workable but slow at weekends; mobile data is often a better backup.
OutagesPower cuts and signal drops during storms
Tourist SIMAIS, True and dtac airport counters sell tourist SIMs and eSIMs, roughly 300–600 THB for 8–15 days; passport required.
eSIMLocal carriers sell eSIMs to visitors.
CarriersAIS, True, dtac
Monthly data plan฿300–600 ($8.9–17.9)

Coworking in Koh Samet

There's no dedicated coworking scene here; people work from cafés and accommodation.

Internet speeds in Southeast Asia

National medians, Speedtest Global Index.

CountryFixedMobile
Singapore463 Mbps164 Mbps
Vietnam301 Mbps220 Mbps
Thailand299 Mbps134 Mbps
Malaysia179 Mbps165 Mbps
Philippines114 Mbps66 Mbps
Brunei86 Mbps254 Mbps
Laos60 Mbps45 Mbps
Cambodia55 Mbps112 Mbps
Indonesia51 Mbps66 Mbps
Myanmar25 Mbps—

Quick answers

Is the internet fast in Koh Samet?

Median fixed broadband in Thailand is 299 Mbps and mobile is 134 Mbps (Speedtest Global Index, 2026-08). Café wifi on Hat Sai Kaew is workable but slow at weekends; mobile data is often a better backup.

Which SIM card should I get in Koh Samet?

AIS, True and dtac airport counters sell tourist SIMs and eSIMs, roughly 300–600 THB for 8–15 days; passport required.

Can I use an eSIM in Thailand?

Yes. Local carriers sell eSIMs to visitors, and travel eSIMs work too.

More about Koh Samet

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Sources

Speeds are medians from Ookla's Speedtest Global Index, cited for reference. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.