Best Koh Samui SIM Card & eSIM Plans

Discover 32 SIM card in Koh Samui on Trip.com, updated April 30, 2026, with experiences lasting from 1 to 2 hours. Find the perfect adventure for your day!

From SGD 0.11 per person, with an average total of SGD 3.50. Choose the option that suits your plan.

With 26.422k verified reviews, SIM card Koh Samui boast an average rating of 4.7.

This week's most popular SIM card: "Thailand | 5G eSIM | Day Pass/Total Package | 24H Billing | 1-30 days | QR code", with 3.868k reviews and a 4.7 rating.

The next available day tour departs on May 1, 2026. Book now to secure your spot!

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

April is perfect for visiting Koh Samui! Choose from SIM card available day tours, including seasonal hits like Thailand | 5G eSIM | Day Pass/Total Package | 24H Billing | 1-30 days | 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 5G eSIM | Day Pass/Total Data Package | 24-Hour Billing | 1-30 Days | QR Code
Guest User2026-04-27
They installed it at the airport, in the departure area. Upon arrival in Bangkok, the e-SIM was activated automatically, and the internet was available the entire time. The 5G speed didn't drop even when moving across water. On Koh Larn Island, the internet connection was excellent.
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.
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.
Reviews: Thailand AIS 5G eSIM | Total 30GB/35GB | Local Phone Number | Real-Name Authentication Required | QR code
Guest User2026-04-26
Although the setup was a bit tricky due to Thailand requiring passport information, the signal quality and usability are excellent. Plus, you don't have to pay 700 or 800 baht for the same line and features at the airport 😄
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 eSIM | Up to 100GB data | 4G/5G connection| 1-30 days
Guest User2026-04-27
Everything works great, except that I can't keep track of how much GB I've used and how much is left, so I have to buy the maximum GB package or worry every time whether I'll have internet if I go somewhere or if it's about to run out.
iF Design Award 2026
iF Design Award 2026
Contact Center <br>of the year 2025
Contact Center
of the year 2025