Travel eSIM Thailand

These eSIMs don’t include voice minutes - data only. For any calling or texting, you’ll need to rely on VoIP or messaging apps such as WhatsApp, Viber, or Messenger.

Yes! Your Thailand eSIM can be installed as early as 30 days before you travel. It won’t start until you touch down in Thailand.

Installing beforehand means no setup stress on arrival, and it won’t use any data or days until you land.

If you get an activation warning on iPhone when installing before arriving, that’s normal - check our eSIM Troubleshooting Guide for details.

No, our Thailand travel eSIMs do not include any phone number - they strictly provide internet data. For calls, use data - driven apps such as WhatsApp, Signal, or Facetime.

Your eSIM will activate automatically when you land in Thailand. However, we recommend installing the Thailand Travel eSIM beforehand (activation happens on arrival).

Simply scan the QR code provided or install the eSIM via the ZenSim app while on WiFi. Once you touch down in Thailand, the eSIM will go live.

Trouble activating? See our eSIM Troubleshooting Guide or contact us for help ☺️

Your Thailand travel eSIM kicks in as soon as you arrive in Thailand - provided it was installed beforehand.

If you install it after you land, it should start working right away.

If you run into trouble, see our eSIM Troubleshooting Guide or get in touch with us.

Good question! Opting for a travel eSIM instead of roaming in Thailand offers clear advantages:

Lower Costs: Say goodbye to outrageous roaming bills by switching to a local travel package designed for Thailand.

Seamless Switching: Change between data plans without fumbling with physical SIM cards - perfect for spontaneous travellers.

Budget Control: Track data usage in real time and avoid surprise charges or overages.

Data and plan days only kick in when you arrive in Thailand. Installing earlier just prepares it for activation which happens automatically when you arrive in Thailand.

Install over WiFi before your trip to get connected from the minute you touch down.

If you have trouble connecting, see our eSIM Troubleshooting Guide or message us for assistance.

Definitely! ZenSim supports eSIM usage in over 200 countries, so Thailand is covered. If you need multi-country coverage, take a look at our regional eSIM options on the Travel eSIMs page.

Signal & Connectivity: If you’re stuck without data, follow our detailed troubleshooting guide. If issues persist, contact support and we’ll fix it promptly.

Install Assistance: For help installing, consult our installation walkthrough. Still need help? Reach out and we’ll guide you step by step.

Other Support Requests: For anything else, head to our contact page.

Absolutely. Nearly all of our Travel eSIMs can be extended directly inside the ZenSim app in just a few taps. You can top up extra data, more days, or even include an additional country on the same eSIM, you’ll find everything in the Zen Garden top up section.

Just sign in, head to the Zen Garden, and you’ll spot the option to top up your eSIM straight away.

Top up plan details: The Thailand options mirror the website plans, with an added 10% savings.

Longer trips: If your adventure goes beyond 30 days, you can stack as many top ups as you like. Each one activates only after the previous plan ends, so you can buy them in advance without affecting your current eSIM.

Add more countries: Many of our eSIMs now support multi country top ups. For example, if you're using a Europe eSIM and have a stopover in Dubai, simply add a Dubai top up and it will activate automatically when you land without needing a new installation.

Not exactly. Once your Thailand eSIM is active, it’s tied to that country.

If you're visiting more than one place, our regional Travel eSIMs offer broader coverage so you can roam freely across multiple destinations.

Very true! Not only that, you can refer as many people as you like to buy our Thailand eSIM, you'll earn a A$5 voucher for each referral - and they will also save A$5 on their order.

There's a couple of things to be aware of, firstly they have to be a new customer for this to apply, and you as the referrer can only use one A$5 voucher per order if you happen to refer a whole lot of friends.

You can view your referral performance and grab your referral URL in the ZenSim app. Visit our terms for more info.

Only if you're on one of our unlimited plans - these come with a 3GB daily allowance, which covers the vast majority of travellers comfortably, since most people only use under 1GB a day.

Go over 3GB in a day and your speed will drop to 1Mbps for the rest of that day, resetting back to full speed at midnight.

If you've gone with a fixed-data plan (like 10GB or 20GB) instead of unlimited, there's no daily cap to worry about - you can use your data however you like until it's gone. We'll notify you before you run out, and you can top up instantly through the ZenSim app.

It won't activate the moment you buy it - your Thailand eSIM won't touch your data or days until you actually arrive, so there's no downside to installing it in advance.

As long as it's installed beforehand, it'll activate itself the second you touch down, and that's the moment your plan officially begins.

As for running out - your eSIM expires once your data or days are gone, whichever comes first (just the days, if you're on unlimited). Buy a 30-day plan and it'll run out 30 days after arrival in Thailand, not 30 days after purchase.

Easy way to check - just run your phone through our eSIM compatibility checker and you'll know in seconds whether it'll work with our Thailand eSIM and networks.

Still not sure, or something looks off? Reach out to us and we'll sort it out. And if it turns out your phone genuinely can't run the eSIM, our refund policy has you covered with a full refund - so there's no risk in grabbing a plan and giving it a go.

We've got a 100% money back guarantee for exactly this kind of situation.

That covers trip cancellations, phones that turn out not to be eSIM-compatible, or just a change of plans that means you no longer need it.

Our full refund policy spells it all out, but the short version is: unable to install or use the eSIM means a full refund, every time.