Firsty eSIM Thailand 2026: Cheap Data Plans & Prices

The cheapest Firsty eSIM for Thailand costs $2.79 and gives you 2 GB for 1 day. We recheck prices daily, so this price is up to date. You can buy it on the official Firsty site.

Yes, Firsty works in Thailand on its Thailand-only plans and on its global eSIMs. If your eSIM is installed but won't connect after you land, open your phone's settings and turn on data roaming for it. Your home SIM can stay as it is.

For Thailand alone, these are Firsty's lowest prices by trip length:

• 7 days: $15.63 for 2 GB
• 15 days: $25.11 for 2 GB
• 28 days: $46.88 for 2 GB

No, Firsty has no unlimited plans for Thailand, so every plan comes with a set amount of data.

Firsty is an eSIM store for travelers, with plans covering 192 destinations. On Trustpilot, 341 people have rated it 4.0 out of 5.

With Firsty, 1 GB in Thailand can cost as little as $1.26, on the plan with 8 GB for 3 days.

Yes, every Firsty plan for Thailand has 5G. Your phone needs to support 5G too: on iPhone, that means an iPhone 12 or newer.

Yes, you can share your data through a personal hotspot on Classic and Unlimited plans, but not on Firsty Free.

No, Firsty's Thailand plans are data only, so your home number stays on your main SIM. In the Firsty app you can also make calls over the internet with prepaid credits.

Yes, you can buy it ahead and activate it when you arrive, with the Activate button in the app or automatically when you enter Thailand, if you turn that on. The days count from activation, not from purchase.

Yes, you top up the same Firsty eSIM in the app, either with another Classic bundle or with extra days of Unlimited. A new bundle doesn't extend an older one, but extra Unlimited days extend the same plan.

Yes, Firsty has 67 global plans. These keep you online as you cross borders.