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Best Koh Samui SIM Card & eSIM Plans

Discover 34 SIM card in Koh Samui on Trip.com, updated May 3, 2026, with experiences lasting from 1 to 2 hours. Find the perfect adventure for your day!

From TWD 6.00 per person, with an average total of TWD 89.50. Choose the option that suits your plan.

With 25.839k 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 4.876k reviews and a 4.5 rating.

The next available day tour departs on May 4, 2026. Book now to secure your spot!

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

May is perfect for visiting Koh Samui! Choose from SIM card available day tours, including seasonal hits 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

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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.
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Reviews: Thailand | 5G eSIM | Day Pass/Total Package | 24H Billing | 1-30 days | QR code
Guest User2026-04-18
Easy to install, affordable, and with smooth connectivity, it worked flawlessly in both Chiang Mai and Bangkok.
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Reviews: Thailand Dtac Truemove 5G eSIM | Total Data Package/Unlimited Data | 3-15 Days | 24-Hour Billing | QR Code
Guest User2026-04-01
Easy to set up, stable signal and speed throughout the trip, TikTok access available.
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Reviews: Thailand AIS 5G eSIM | Total 30GB/35GB | Local Phone Number | Real-Name Authentication Required | QR code
Guest User2026-04-18
The Thailand eSIM was super easy to activate and worked instantly upon arrival. The connection was fast and reliable throughout the day, making navigation and communication hassle-free.
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Reviews: Global (66 countries) | 4G/5G eSIM | Total Package | 1-7 days | 24H Billing | Real-Name Auth Required (Hong Kong & Taiwan) | QR code
Guest User2026-04-19
Fast 5g and no issue use so far, with 3x renew of 5day 3gb each throughout my 10 day trip in Xian.
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Reviews: Thailand 5G eSIM | Day Pass/Total Data Package | 1–30 Days | 24-Hour Billing | QR Code
Guest User2026-04-22
The connection is good, I had a signal everywhere. It's inconvenient that there's no standard data plan—either 3GB per day or 100GB per day, and the price difference is twice as high. You only need to activate the SIM card on the day of departure, otherwise your precious data days will be deducted. Thanks to the e-SIM, you're connected as soon as you land, so you don't have to worry about getting lost, and your family will know where you are, too.

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