Best Koh Samui SIM Card & eSIM Plans

Discover 35 SIM card in Koh Samui on Trip.com, updated April 4, 2026, with experiences lasting from 1 to 2 hours. Find the perfect adventure for your day!

From EUR 0.09 per person, with an average total of EUR 1.64. Choose the option that suits your plan.

With 29.59k 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 4.441k reviews and a 4.7 rating.

The next available day tour departs on April 5, 2026. Book now to secure your spot!

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

April is the perfect time to visit Koh Samui! Choose from SIM card available day tours, including seasonal favorites 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 | TikTok & ChatGPT Available | In-App Installation | Day Pass/Total Data Package | 24-Hour Billing | QR Code
Guest User2026-02-23
Unbeatable price, however no Thai phone number so impossible to call a Grab or a Thai establishment for example
Reviews: Thailand | 5G eSIM | Day Pass/Total Package | 24H Billing | 1-30 days | QR code
Guest User2026-02-23
I managed to buy a SIM card for a week for 1 ruble during a flash sale. It's fantastic. Everything works perfectly. I just had to activate and enable data roaming, and everything worked.
Reviews: Thailand Dtac 5G eSIM | Local Phone Number | Unlimited Data | 24-Hour Billing | QR Code
Guest User2026-02-22
I had no trouble activating my Trip.com account. The connection was stable, only working while out at sea on the way to the Similan Islands. I shared it with three other devices, and they all worked without issue. I didn't use the phone service, so I'd recommend considering a data-only plan.
Reviews: Thailand eSIM | Up to 100GB data | 4G/5G connection| 1-30 days
Guest User2025-11-23
Excellent experience! The signal is fast and stable. Customer support is timely and effective. Will recommend to friends and families.
Reviews: Thailand AIS 5G eSIM | Unlimited Data | 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: Asia 11 Regions & Oceania 4G/5G eSIM | TikTok & ChatGPT Available | Day Pass/Total Data Package | 24-Hour Billing | 1-30 Days | QR Code
Guest User2025-07-27
I went to Vietnam → Cambodia on a woman's solo trip and stayed in Cambodia for 9 nights (Phnom Penh 2 nights, Krache 1 night, Siem Reap 6 nights) ♪ Thanks to this eSIM, it was a fulfilling trip ^ ^ Use again Shu!
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