There’s a lot to do and explore in Thailand, but roaming fees and connection issues rapidly spoil the fun. Well, not with the best eSIM for Thailand. Once activated, it enables effortless internet connection and lets you avoid sky-high roaming charges. Best of all, you don’t even need to swap out your old SIM card.
A trusted eSIM for Thailand activates in a minute, letting you enjoy unlimited data as you explore sprawling Thai cities and soak in splendid views. To make your life a tad easier, our team tested over 20 eSIMs in Thailand and narrowed them to five. These are the best and most reliable eSIMs you can use here.
Best eSIM for Thailand: A Quick Round-up
Best eSIM for Thailand: Best eSIM Plans Reviewed
Traveling to Thailand in 2026? Don’t forget a worthy eSIM companion to stay connected and not pay head-spinning roaming charges. These five stick out for their low prices, reliability, and flexible Thai eSIM plans:
1. Ubigi (Best-value plan: 10 GB for $13.9 for 30 days)
Pros
- Unlimited plans available
- Affordable eSIM
- Impressive speeds
- Smart IP feature
- No limits on data sharing
Con
- No local phone number
Our #1 pick, Ubigi, is the best eSIM you can use in Asia. Similarly, it’s the top option for your travel to Thailand, with plans starting at only $3.9 for 1 GB of data for 7 days. Ubigi even has monthly and annual plans, with renewable data for frequent travelers. Unlimited data is also available for $22.9 for 7 days, and enjoy 4G and 5G connectivity on Thailand’s top networks, AIS and True, for the widest coverage wherever you go.
If you’re staying for a month, it’ll cost you $57.9 for a limitless experience. Having tested it in Bangkok and Phuket, we can confirm its exceptional coverage and reliable 5G speed. Ubigi is one of the fastest eSIM options for streaming, downloading, video calling, and gaming. It’s also secure thanks to added encryption.
We like Ubigi’s activation via the QR code, after which, your plan starts when you arrive at your destination. What you see is what you pay, so there are no hidden fees or roaming charges. Ubigi allows data sharing and puts no restrictions, so even a group of travelers can enjoy the internet from one eSIM.
Traveling doesn’t have to mean slowing down online. Ubigi lets you connect with the internet exactly as if you were at home, wherever you are. While roaming through your usual mobile operator keeps your IP from home and local Wi-Fi can be hit-or-miss, Ubigi gives you flexibility: enjoy a fast, secure mobile connection with a home-country IP, or switch to a local IP for a true local experience.
If you have an eSIM-compatible laptop, Ubigi supports many from Acer, Asus, Dell, HP, and Lenovo. It lacks local Thai phone numbers, but with 14 distinct eSIM plans for Thailand with affordable prices, it’s not a downside. All can be discounted by 10% with the GIZMODO promo code for added savings.
2. Saily (Best-value plan: $20 GB for $19.99 for 30 days)
Pros
- Many security features
- Affordable starting price
- Data saver (ad blocker)
- Refunds are possible
Con
- Higher cost for long stays
Saily is a low-cost eSIM for Thailand with plans starting at $2.99 for 1 GB of data for 7 days. However, 3 GB, 5 GB, 10 GB, 20 GB, and unlimited plans are also available for 30 days. Our favorite is the 20 GB plan for $19.99, but if you want to go unlimited, prices start at $18.99 for 5 days—good for a quick stay.
Saily’s performance in Thailand is exemplary. 4G and 5G coverage is unrelenting, and smooth streaming, VoIP calling, and gaming are guaranteed. Saily’s cybersecurity roots can be seen from a mile away, with features like virtual locations, a data saver (ad blocker), and a tool that blocks malicious URLs.
Better yet, Saily allows refunds if you face activation issues or this eSIM for Thailand simply isn’t working for you. Its 24/7 live chat support is responsive, and you get apps for iOS and Android for quicker activation. Overall, Saily is pretty much perfect, except for slightly higher prices for longer stays.
3. Holafly (Best-value plan: unlimited data for $27.30 for 7 days)
Pros
- Unparalleled speeds
- Cheap for short stays
- 24/7 live chat support
- Automatic activation
Cons
- 500 MB/day hotspot limit
- Expensive for long stays
Holafly is among the most popular eSIMs for global travelers. If Thailand is on your map, this eSIM has unlimited data, which costs $3.90 for a day. Its reliable speeds and coverage make it among the speediest eSIMs, which we used primarily for video communication and gaming sessions. Holafly relies mainly on 5G.
However, even 4G connections were fast in our tests. Holafly is affordable for short stays, and while its price per day of unlimited data goes down for longer stays, it’s still not affordable. 7 days cost $27.30, while 15 days cost $50.90. For a month, you’ll spend $74.90, far more than on Ubigi, which is only $58.
Holafly permits data sharing, but it’s limited to 500 MB per day. That’s compensated with 24/7 customer support through live chat and an automatic activation when you reach your destination. Holafly is a great all-arounder with tiny caveats, easily forgotten when you see how fast and reliable it is.
4. Airalo (Best-value plan: unlimited data for $24 for 7 days)
Pros
- Exclusive 5G coverage
- Cheap unlimited data
- Data usage tracking
Cons
- Subpar customer support
- No local phone number
Airalo is one of the few eSIMs for Thailand with exclusive 5G coverage from AIS. During our tests, Airalo displayed an impressive level of performance, offering coverage even on many Thai islands. Best of all, activation was smooth, and Airalo allowed us to top up our eSIM with data when we ran out.
The eSIM starts at $4 for 1 GB of data for 3 days. We used its 10 GB plan for 7 days for $9, as in our eyes, it’s a perfect balance of price and data allowance. Airalo offers unlimited data for as low as $10.50 for 3 days. For 7 days, you’ll spend $24, which still isn’t that expensive. On top of that, you can share data limitlessly.
If you’re on a limited plan, Airalo will track your usage and alert you if you’re close to the limit. Airalo also has a regional Asian plan, which also covers Thailand, but lacks local phone numbers. On that note, Airalo’s customer support isn’t the fastest to respond and leaves a lot to be desired in 2026.
5. Jetpac (Best-value plan: 30 GB for $23.99 for 30 days)
Pros
- Free data for essential apps
- Good value for money
- Optional lounge access
Cons
- Not the fastest eSIM
- Cheaper only for short stays
Jetpac is a unique eSIM for Thailand, blending excellent value for money and subscription plans for travelers. It starts at $4 for 1 GB of data for 4 days, but the 3 GB plan for 7 days is our favorite for short stays. Meanwhile, the 30 GB plan at $23.99 is also great, and if you need more, you can go unlimited.
In that case, Jetpac is only $12.99 for 3 days; ideal for a short trip. Regardless of the plan, you get free data for WhatsApp Chat, Google Maps, Uber, and Grab, all the essentials when you go abroad. Lounge access is bought separately, although you can get it as part of the Jetpro plan with 100+ locations supported.
Jetpac uses 4G and 5G data and is reliable, although not as speedy as Ubigi. Its support may not be the fastest either, but it’s knowledgeable and willing to help. Jetpac’s apps offer quick and easy activation, and you can purchase Jetpac using Google Pay, Apple Pay, or your credit card, making it available worldwide.
Why Use an eSIM in Thailand?
Our guide on the best eSIM providers explained why an eSIM is so essential. Whenever you go abroad, you’ll start roaming. Roaming is when you use your domestic SIM card abroad, leading to increased costs, but subsequently lower reliability. In other words, you spend way more and get way less.
You’ve heard of bill shocks; well, that’s exactly what happens without an eSIM in Thailand or any other foreign country. To avoid roaming, you need a local SIM card or an eSIM, and from our experience, the latter is superior. You can purchase and activate it before your trip. After that, you can immediately use it.
Best of all, your old SIM can stay in the phone. With an eSIM for Thailand, you can use your internet data as if you were home, without roaming fees, and for as little as a few dollars. You will stay connected and be able to communicate and use social media, while having an eSIM that offers nationwide coverage.
Can I use an eSIM for Thailand in Other Asian Countries?
If you buy an eSIM that works only in Thailand, you can’t. However, our recommended picks offer regional plans for Asia, which cover at least 15 countries, including Thailand, Japan, China, Hong Kong, Singapore, and others. Purchasing this plan makes your eSIM available in all countries without roaming fees.
Bear in mind that regional plans are often limited, and some providers, like Airalo, don’t have unlimited data plans. If you need an eSIM plan for Asia, we recommend Ubigi for the best coverage and unlimited data for a relatively low price.
Conclusion
Traveling abroad doesn’t have to cut you off from the internet and leave you stranded. To avoid horror, use an eSIM for Thailand that you can trust, such as Ubigi, Saily, Holafly, Airalo, or Jetpac. We tested many, but these five were the most reliable and offered the best value for money based on many tests.
Speed, coverage, plan flexibility, ease of use, and support. Ubigi checks all the right boxes and even has a handy 10% discount for first purchases with our GIZMODO promo code. If Ubigi doesn’t scratch the itch, you have four more options, all activated in a minute and working in Thailand without issues.