Top picks for Koh Samui SIM card

Discover 34 SIM card in Koh Samui on Trip.com, updated March 28, 2026, with experiences lasting from 1 to 2 hours. Find the perfect adventure for your day!

From KRW 286.00 per person, with an average total of KRW 4,161.35. Choose the option that suits your plan.

With 25.799k verified reviews, SIM card Koh Samui boast an average rating of 4.6.

This week's most popular SIM card: "Global (66 countries) | 4G/5G eSIM | Total Package | 1-7 days | 24H Billing | Real-Name Auth Required (Hong Kong & Taiwan) | QR code", with 4.856k reviews and a 4.5 rating.

The next available day tour departs on March 29, 2026. Book now to secure your spot!

Koh Samui SIM card usually take about 1 hours — perfect for a relaxed, immersive experience!

March is the perfect time to visit Koh Samui! Choose from SIM card available day tours, including seasonal favorites like Global (66 countries) | 4G/5G eSIM | Total Package | 1-7 days | 24H Billing | Real-Name Auth Required (Hong Kong & Taiwan) | QR code.

Your trip, worry-free! All day tours are run by licensed suppliers with verified reviews, and many include free cancellation before departure.

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Reviews/Trip Moments

Reviews: Thailand AIS 5G SIM Card | 35GB for 7days | Local Phone Number | Pick Up at Bangkok Airport
Guest User2026-01-21
It's convenient because you can find it right after exiting the departure hall. The staff was friendly and set it up quickly. The signal was decent, and I used it well. However, I was a little worried because my plan was suspended after 35GB, which was a bit of a concern. I was satisfied because the price was cheaper than buying unlimited data on-site.
Reviews: Thailand | 5G eSIM | Day Pass/Total Package | 24H Billing | 1-30 days | QR code
Guest User2026-02-27
I applied the day before my arrival. It's easy to set up using a QR code and cheaper than buying a separate SIM card.
Reviews: Thailand Dtac Truemove 5G eSIM | Total Data Package/Unlimited Data | 3-15 Days | 24-Hour Billing | QR Code
Guest User2026-02-26
easy to connect, good connectivity even out at sea only sometimes too far out at sea, connection drop for a few seconds, overall very good.
Reviews: Thailand AIS 5G eSIM | Total 30GB/35GB | Local Phone Number | Real-Name Authentication Required | QR code
Guest User2026-02-21
Best connection, did not have any problems with it even when we went island hopping. Was connected the whole time. Though would advise one to do the authentication before flying put as it can be a bit complicated.
Reviews: Global (66 countries) | 4G/5G eSIM | Total Package | 1-7 days | 24H Billing | Real-Name Auth Required (Hong Kong & Taiwan) | QR code
Guest User2026-01-22
It was strong and lasted for 2 days (3GB), we have been using it consistently and it was very efficient👍
Reviews: Thailand 5G eSIM | Day Pass/Total Data Package | 1–30 Days | 24-Hour Billing | QR Code
Guest User2026-02-27
It's very helpful when traveling, the signal is excellent, it worked on all the islands where we visited on an excursion, you can also buy additional GB or days.
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