Best Koh Samui Connectivity Solutions

Discover 35 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 USD 0.09 per person, with an average total of USD 1.54. Choose the option that suits your plan.

With 35.776k verified reviews, Wi-Fi & SIM cards Koh Samui boast an average rating of 4.6.

This week's most popular Wi-Fi & SIM cards: "Thailand | 5G eSIM | Day Pass/Total Package | 24H Billing | 1-30 days | QR code", with 6.487k 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 perfect for visiting Koh Samui! Choose from Wi-Fi & SIM cards 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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35 results for Koh Samui Wi-Fi & SIM cards

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Reviews/Trip Moments

Reviews: Thailand | 5G eSIM | Day Pass/Total Package | 24H Billing | 1-30 days | QR code
Guest User2026-04-14
We installed eSIMs for my husband and myself on our iPhone and Android phones for our trip to Thailand. Due to the new rules for obtaining a SIM card in Thailand and their cost, installing an eSIM is a lifesaver. You install and pay for it in Russia, and upon arrival abroad, you can turn on your phone and be connected right away! We got 1G per day for 14 days. We paid 300 rubles each for 14 days. 5G internet. Since I also use various instant messaging apps, I didn't quite have enough data per day, but my husband has enough for uploading photos and videos. And of course, the connection in instant messaging apps is excellent. All instant messaging apps are accessible without a VPN. I recommend it to everyone.
Reviews: Thailand 5G eSIM | TikTok & ChatGPT Available | Day Pass/Total Data Package | 24-Hour Billing | QR Code
Guest User2026-04-13
You need to activate it either with a different SIM card or via Wi-Fi, something like that. They shared my internet connection from another phone, and everything activated quickly. Everything worked perfectly. I had enough data for eight days, including replying to VK messages, photo translation, taxi services, and navigation.
Reviews: Thailand Dtac 5G eSIM | Local Phone Number | Unlimited Data | 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 | Unlimited Data | Local Phone Number | Real-Name Authentication Required | QR code
Guest User2026-04-11
It was really easy to install the app, verify your passport and photo, and get a number.
Reviews: Thailand truemove 5G eSIM | Total Data Package/Unlimited Data | 1–30 Days | 24-Hour Billing | QR Code
Guest User2026-04-13
Everything works! Very easy and quick to set up. The price is almost half that at the airport. I recommend it.
Reviews: Thailand eSIM | Up to 100GB data | 4G/5G connection| 1-30 days
Guest User2026-04-13
The internet in Thailand works very well. Just not right away. It was intermittent for the first hour or two, but then it worked.
iF Design Award 2026
iF Design Award 2026
Best Contact Center 2024 - Bronze
Best Contact Center 2024 - Bronze