Top picks for Koh Samui Wi-Fi & SIM cards

Discover 36 Wi-Fi & SIM cards in Koh Samui on Trip.com, updated March 27, 2026, with experiences lasting from 1 to 2 hours. Find the perfect adventure for your day!

From USD 0.10 per person, with an average total of USD 1.61. Choose the option that suits your plan.

With 26.612k 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 4.235k reviews and a 4.7 rating.

The next available day tour departs on March 28, 2026. Book now to secure your spot!

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

March 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.

Search attractions or local attractions & tours
Available Today
Available Tomorrow

36 results for Koh Samui Wi-Fi & SIM cards

1
2

Frequently asked questions about Koh Samui Wi-Fi & SIM cards

How many Wi-Fi & SIM cards are available in Koh Samui on Trip.com?

What are the best Wi-Fi & SIM cards in Koh Samui?

What are the top-rated Wi-Fi & SIM cards in Koh Samui?

How can I contact Trip.com customer support?

Can I change or cancel my booking?

How can I get discounted prices?

Reviews/Trip Moments

Reviews: Thailand 5G eSIM | TikTok & ChatGPT Available | In-App Installation | Day Pass/Total Data Package | 24-Hour Billing | QR Code
Guest User2026-03-26
A great option for traveling to Thailand! First, a friend bought it, then I did. Mine has the tethering feature. ALL apps work (including Russian balki and Max, too!). Installation is easy, follow the link. Just don't forget to turn on the Data Roaming button on your iPhone! - once you arrive. Only then will the e-SIM card work. We contacted support, and they told us about this feature.
Reviews: Thailand | 5G eSIM | Day Pass/Total Package | 24H Billing | 1-30 days | QR code
Guest User2026-03-26
Affordable and stable line in Thailand. Easy to install for iOS, just press an install button in Trip.com apps. Do remember to install e sim in advance, and press roaming in your phone to activate the eSIM.
Reviews: Thailand Dtac 5G eSIM | Local Phone Number | Unlimited Data | 24-Hour Billing | QR Code
Guest User2026-03-23
I used this eSIM during my trip and overall it was a very smooth experience. Setup was quick—I installed it before departure, and the data started working immediately after landing in Bangkok without needing to queue for a physical SIM.
Reviews: Thailand truemove dtac 5G eSIM | Total Data Package/Unlimited Data | 5–30 Days | 24-Hour Billing | QR Code
Guest User2026-03-26
This esim is very helpful, when you need access to internet do not hesitate to book this esim, thank you esim
Reviews: Southeast Asia (7 countries) | 5G/4G eSIM | Day Pass/Total Package | 24H Billing | 1-30 days | QR code
Guest User2025-11-29
Easy to install. Convenient to use. Good signal. Works well even in many places. There is a link to check how much you have used. Recommended. No need to put in a SIM card, it's a hassle.
Reviews: Thailand DTAC 5G eSIM | Local IP with Fast Speed | 10 / 15 Days | Unlimited Data & Calls | Instant QR
Guest User2026-03-17
We vacationed for 11 days. I bought it twice. It's very convenient: upon arrival, you click the action button in the PDF file (which is sent to your email), and it automatically transfers to your phone settings and select "Apply." I'm using an iPhone 14 Pro Max. Sooooo convenient ❤️❤️ I'll be back in Thailand again, and I'll definitely buy from the same supplier. We vacationed at Kata SeaBreeze.