The Maya Mobile Global eSIM is the best eSIM for Thailand for travelers who want to install once and pay one flat price for the whole trip. Plans run 3, 7, 14 or 30 days from USD 9.99, with unlimited data and a daily high-speed allowance.
The old way means shopping plans before every trip and hoping the one you picked holds up. One eSIM that stays on your phone skips that.
The Maya Mobile eSIM is the best fit for most Thailand trips
For each trip you buy a plan, and that’s all. No reinstalling, no deleting the eSIM between trips.
Pick your days, buy the plan, land in Bangkok, go. Your phone stays ready for the next trip too.
What should you check before you buy an eSIM for Thailand?
Check three things: whether you need a phone number, how the plan is priced, and what “unlimited” means in the fine print. Maya Mobile eSIM plans are data plans only, so they don’t include a local phone number.
On price, Maya charges by trip length: $27.99 for 14 days and $49.99 for 30 days. On “unlimited,” the wording that counts is the daily high-speed allowance, which Maya calls the Daily Quota.
Trip length, rough data needs and whether you need a local number decide the choice. Skip any of the three and you’ll be buying blind.
Here’s what goes wrong when the install doesn’t go smoothly. A 2-star Trustpilot review of Saily by Michael F. from September 23, 2025 reads: “Easy to setup, although haven’t used it yet. Added 2nd day: At arrival, Lisbon airport free wifi sign-in was showing a browser 404 error page, while my wife’s phone signed in fine. Changing to Saily eSim1 was easy enough, turning roaming on, but getting decent data rate, even after 2 reboots, barely any signal, Saily chat was on and off line, Speedtest was showing no connection. Was on with 4 different agents – frustrating – not enough bandwidth to send screenshots, so a lot of typing. Through spoty internet, has to update to truphone.com entry, NOS 1Global API and one other custom setting on my new Zfold7. Well over 2 hours, 6:30 am flight arrival till close to 10:30 by the time I was able to get setup, so I could a decent internet access to access Google Maps and train info, to see where I needed to go for my hotel. Never had this much trouble ever! Once I was able to get it working making several custom setting changes from live agent assistant, then it was good, meanwhile my phone was half dead using it for so long trying to get a decent internet signal. My signal bars were full, just settings were all wrong. I don’t understand why I had to go through all of this, then have to make several custom modifications to network setup on the new eSim from Saily… Why would they not be pre-configured or at least have these settings in some instructions as part of the eSim installation or part of the instructions after purchasing the 10Gig 30 day plan, the system knew it was for Portugal, there was no specific instructions on required custom network settings and took several hours to get it working…. I read reviews with a high rating. Can’t imagine having to go through this every time I travel somewhere, so I don’t know how I can use the same service again, knowing I may have to go through this again, meanwhile my wife had to wait with me for several hours. I knew about the tips to not get charged extra when arriving in another Country, installing the Saily eSim, but the custom settings for API and service types was not know until after I was at the mercy of a severely poor data connection with full bar signal and not able to use the Lisbon Portugal free airport wifi. Now that it is up, it seems fine for the 2nd day using it. The reason for 2 stars is having to spend hours trying to setup with 4 different live chat agents, which were fine, but had repeats of similar info to resolve my initial connection issues, until it finally worked… Sitting on stone ledge for over an hour and over an hour outside the airport trying to get a internet signal – was a wonder I was able to even chat with Saily tech agents in the first place.”
How does unlimited data work on a Maya Mobile eSIM in Thailand?
The Maya Mobile Global eSIM carries unlimited data across 165+ countries. Every plan includes a daily high-speed allowance, the Daily Quota, at up to 4G LTE or 5G where local networks offer it.
Once you use the Daily Quota, data continues at standard speed for the rest of the day. Data is never cut off entirely on the plans. The allowance refreshes every 24 hours, counted from the activation date. Some restrictions apply to very high usage, to keep service quality high for everyone.
Tushar gave Maya five stars on Trustpilot in July 2026 and wrote: “Using Maya eSIM was a smooth and hassle-free experience from start to finish. The installation and activation were simple, and I was connected almost immediately. Throughout my trip, the connection remained stable, with fast data speeds that easily handled maps, social media, video calls, and web browsing. One of the biggest advantages was the convenience of using an eSIM instead of swapping physical SIM cards. The available plans offered good value for money, and everything was easy to set up and manage through the app. Whenever I needed assistance, the support team responded promptly and was helpful. Overall, Maya eSIM delivered reliable performance, excellent convenience, and great value. I wouldn’t hesitate to use it again and would happily recommend it to anyone looking for a dependable eSIM for travel.”
Speed isn’t guaranteed on any plan, and data stays on standard speed after the daily allowance. That’s the deal, in plain words.
Which Thailand networks matter when you pick an eSIM?
Thailand’s main networks are AIS and the merged TrueMove H and dtac. AIS is widely rated for the fastest and most expansive 5G/4G coverage across cities and remote islands, while TrueMove H and dtac offer wide urban and rural reach.
Maya doesn’t name the local networks it uses in each country. Its destination pages say it connects customers “to the strongest local network in every country” (Maya public record, 2026).
How much does an eSIM for Thailand cost for 3 to 30 days?
Maya’s flat prices run by trip length. A 14-day plan is $27.99 and a 30-day plan is $49.99. The full ladder is 3 days at USD 9.99, 7 days at USD 19.99, 14 days at USD 27.99 and 30 days at USD 49.99.
For a point of comparison, True-dtac publishes a roaming charge for its postpaid customers: “The postpaid customer who enable roaming services and did not subscribe roaming package will be charged at 350 baht or 499 baht per day (excl. VAT) based on roaming country.” (True-dtac, Travel abroad with Affordable Roaming Packages | True-dtac)
How do you install and activate a Maya Mobile eSIM for Thailand?
Install the Maya Mobile eSIM before you fly, while you’re on stable Wi-Fi, and add your plan. Then switch it on in Thailand: the plan clock starts when you enable the Maya eSIM in phone settings.
Installing needs an internet connection, so get on Wi-Fi first. Buy your plan online before the trip, then scan the QR code or follow the install link to add the eSIM to your device.
On iOS, choose the QR code method in the Maya Mobile app, which is marked Recommended. Scan the QR code with the device to install on, tap Add eSIM or Add Cellular Plan when notified, and follow the on-screen prompts. Prefer manual? Log in to your Maya Mobile account, click My eSIMs, click Install eSIM under the plan, click Manual Activation Code on the pop-up, then copy the code and enter it on the device when prompted.
The compatible devices list is at maya.net/esim-compatible-devices.
Done! You’re online before the baggage carousel starts.
Which travel eSIM should you buy for your Thailand trip?
Each company sells and describes its plans differently, and each describes its unlimited allowance in its own published words.
| Travel eSIM | How plans are sold | Unlimited plan allowance, as published |
|---|---|---|
| Maya Mobile | One Global eSIM for 165+ countries, unlimited data at a flat price by trip length: USD 9.99 for 3 days, USD 19.99 for 7 days, USD 27.99 for 14 days, USD 49.99 for 30 days | A daily high-speed data allowance (the Daily Quota) at up to 4G LTE or 5G where local networks offer it, reset every 24 hours; unlimited data at standard speed once the Daily Quota is used |
| Airalo | Per country, per region, or one global plan; priced in USD | Our unlimited data packages don’t have a fixed total data cap. However, to keep the network running fairly for everyone, when you use more than 3GB in a day, we’ll slow down (or “throttle”) your internet speed to 1 Mbps for the rest of that day. |
| Holafly | Per country, per region (Europe, Latin America, Cruise plans), and monthly global plans: Light, 25GB of data, $ 49.90USD/month; Unlimited, $ 64.90USD/month; Ultra, $ 90.95USD/month | Unlimited data means there is no fixed limit on the amount of data you can use. However, some network operators may temporarily reduce your speed after a certain amount of high-speed data usage. |
| Saily | Per country and per region, plus one global plan; by the gigabyte, unlimited, or both | The Unlimited plan gives you 5 GB per day at full 4G/5G speed, then keeps you online at 1 Mbps for the rest of the day — fast enough for navigation, messaging, and standard browsing. |
| Nomad | Per country, per region and global plans; by the gigabyte | How many GB of high-speed data you wish per day. You can continue to use your data at a throttled speed of 512kbps after you’ve used up your daily allocation. |
Each rival’s allowance is given in its own published words, or a short summary of what it states; the Maya Mobile details are from maya.net.
How Maya replaces Thailand plan shopping with one eSIM you install once
Maya Mobile is a travel eSIM giving unlimited data in 165+ countries through a single eSIM permanently installed on your phone. For each trip you only buy a new plan, with no reinstalling.
Every Maya plan is a prepaid, time-based data pass with unlimited data across 165+ countries, and the 30-day plan costs $49.99. Install once, pick your days, land in Thailand and go.
FAQ
What happens if my Thailand trip runs longer than my eSIM plan?
Buy another plan from the Maya app; if a plan shows as expired, that takes under a minute. With Auto Top-Up off, the plan ends with no further charge. Auto Top-Up is optional and buys the same plan again when the current one expires. Turn it off any time from My eSIM in the app or at maya.net, with immediate effect.
Does my Maya Mobile eSIM plan renew automatically?
No. Auto Top-Up is opt-in only and off by default, so an expired plan simply stops and nothing more is charged.
Can I use the same Maya Mobile eSIM on my next trip after Thailand?
Yes. Once a plan expires, the eSIM remains installed on your phone and is ready when you travel again. You only buy a new plan, with no deleting or reinstalling between trips.
What is the refund policy if my Thailand eSIM does not work?
A full refund is available if no data has been used and you request it within 30 days of purchase. A full refund is also available if an activated plan is completely unusable due to a Maya error that isn’t fixed within 10 days of the refund request. When an eSIM can’t be installed since the device is incompatible or carrier-locked, the refund is the full amount minus payment processing fees, as long as no data was consumed and the request comes within 30 days of purchase. In every other situation, including a trip cancelled after activation and data consumption, no refund is available.
What should I do if my eSIM has no signal in Thailand?
Check that the Maya eSIM is switched on and selected for Cellular Data in phone settings. Leave Network Selection set to Automatic so your phone keeps searching for a signal. If you’re in an area without service, wait and check later. If the eSIM is verified as not installed after you’ve followed the steps, contact Maya support, who will help.
What plan do I need if my Thailand trip includes a cruise?
You need the Global + Cruise plan, bought separately from the Global plan. It covers 20+ cruise lines and 165+ countries, including Norwegian Cruise Line, Royal Caribbean International and Carnival Cruise Line.
Maya gives you one eSIM that stays on your phone for Thailand and every trip after, with unlimited data and a flat price by trip length.
