Top picks for Koh Samui Wi-Fi & SIM cards

Discover 36 Wi-Fi & SIM cards in Koh Samui on Trip.com, updated April 25, 2026, with experiences lasting from 1 to 2 hours. Find the perfect adventure for your day!

From EUR 0.06 per person, with an average total of EUR 1.47. Choose the option that suits your plan.

With 33.926k verified reviews, Wi-Fi & SIM cards Koh Samui boast an average rating of 4.7.

This week's most popular Wi-Fi & SIM cards: "Thailand | 5G eSIM | Day Pass/Total Package | 24H Billing | 1-30 days | QR code", with 5.767k reviews and a 4.7 rating.

The next available day tour departs on April 26, 2026. Book now to secure your spot!

Koh Samui Wi-Fi & SIM cards usually take about 1 hours — perfect for a relaxed, immersive experience!

April is the perfect time to visit Koh Samui! Choose from Wi-Fi & SIM cards 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 | Day Pass/Total Data Package | 24-Hour Billing | QR Code
Guest User2026-03-02
Our main location was Patong. We also took trips to the islands. The card worked flawlessly everywhere. Sometimes the internet speed dropped a little, but nothing critical. I bought two cards, one for me and one for my wife, with 20GB each. We didn't use up even half the data in 12 days. We didn't have to limit ourselves in any way.
Reviews: Thailand | 5G eSIM | Day Pass/Total Package | 24H Billing | 1-30 days | QR code
Guest User2026-03-02
Once again, an e-SIM has saved our life. Quick purchase, easy setup, and you're back online! I highly recommend it!
Reviews: Singapore/Malaysia/Thailand/Indonesia Southeast Asia universal 5G eSIM | DayPass/Total | 500MB/day-total 30GB | QR code
Guest User2026-02-28
Super easy to install. Switches automatically when you enter new country with a simple restart of your phone. Best purchase for my trip. Will definitely recommend and buy again. Very satisfied.
Reviews: Thailand Dtac 5G eSIM | Local Phone Number | Unlimited Data | 24-Hour Billing | QR Code
Guest User2026-03-02
Excellent connection, connected without any problems. And there was a bonus: more days and unlimited internet. For the price, it's simply amazing!
Reviews: Thailand truemove 5G eSIM | Total Data Package/Unlimited Data | 1–30 Days | 24-Hour Billing | QR Code
Guest User2026-03-02
Everything was very fast and cheap; I couldn't find anything cheaper. 5G coverage was everywhere, and the internet was very fast and stable.
Reviews: Asia 10 Destinations 5G eSIM | Japan, Thailand, Vietnam, Indonesia, Korea & More | ChatGPT | 1–30 Days | Instant QR
Guest User2026-01-11
I used this in KL, Bangkok and Shanghai. Overall the signal was ok. Sometimes we do get a drop out but it’s not often. We managed to use all social media platforms with this eSIM at Shanghai. Only thing is if you want to hail a ride you’ll need a number for it in china.
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