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Island in Trat, Thailand

Internet in Koh Chang: speed, SIM cards and coworking

Updated October 2026Sources
299 MbpsMedian download

Is the internet good in Koh Chang?

Median fixed broadband in Thailand is 299 Mbps and mobile is 134 Mbps (Speedtest Global Index, 2026-08). Cafés at White Sand and Kai Bae have usable wifi; expect slow patches and storm outages. Bring a 5G SIM.

Getting online in Koh Chang

Details
Home fibreFibre in some condos and villas on the west coast; resort and bungalow wifi often weak, so ask before booking.
Cafés and coworkingCafés at White Sand and Kai Bae have usable wifi; expect slow patches and storm outages. Bring a 5G SIM.
OutagesPower and signal cuts in storms, mostly Jun–Oct
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 Chang

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 Chang?

Median fixed broadband in Thailand is 299 Mbps and mobile is 134 Mbps (Speedtest Global Index, 2026-08). Cafés at White Sand and Kai Bae have usable wifi; expect slow patches and storm outages. Bring a 5G SIM.

Which SIM card should I get in Koh Chang?

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.

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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 Spotted something out of date?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.