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eSIM for Thailand

AIS5G
Choose your plan
How much data, for how long?
01Pick your data — popular price shown
Need fewer/more days?
Validity starts on first connection. Hotspot supported. No throttling. Refundable within 7 days if unactivated.
Going elsewhere too?
Add another country to bundle on the same eSIM — pay separately per stop, manage in one app.
Thailand flag
Thailand
3 GB · 10 days
Total
€4.99EUR
Paysera

Buy eSIM data plans for Thailand

A Thailand eSIM is a prepaid data plan that connects your phone to local Thailand networks the moment you land — a digital SIM you install before you fly, with no queues, no SIM swap and no roaming fees.

A Thailand eSIM is a data-only plan that loads onto your phone before you fly and switches on the moment you land. Touching down at Bangkok's Suvarnabhumi Airport? Skip the SIM kiosks and step out already online. The plan connects you to Thailand's AIS network, with 5G in the cities and 4G almost everywhere else, so you can pull up maps, message home, call a ride and check your booking long before your luggage reaches the carousel. No roaming fees, no swapping a physical SIM, no hunting for airport Wi-Fi. Just data the second you arrive.

  • Hassle-free refund

    Activation issue? We fix it or refund you in full.

  • Plans don't expire

    Buy now, activate whenever your trip starts.

  • Secure checkout

    Encrypted payment via Paysera — cards & wallets.

  • 24/7 support

    Real people, any time zone, before and during your trip.

How eSIM works in Thailand

Choose a data plan for Thailand, install the eSIM before your trip, and activate it when you arrive. Your regular SIM can stay in your phone, while the eSIM gives you mobile data for travel apps, messaging, maps and browsing.

  1. Buy a plan

    Pick a destination and data amount — pay in seconds.

  2. Install in a tap

    Scan the QR or auto-install in the app — no physical SIM.

  3. Land & connect

    Data activates on first connection at your destination.

What you can do with 3 GB

  • ≈ 600 hrs
    Maps & navigation
  • Unlimited
    Messages
  • ≈ 1,000
    Photos shared
  • ≈ 50 hrs
    Social & browsing
  • ≈ 8.8 hrs
    Video calls
  • ≈ 38 hrs
    Music streaming

Important cities in Thailand

Bangkok · City guide

Bangkok

A Bangkok eSIM keeps you oriented while you cross the city from the Grand Palace to Wat Arun and back along the Chao Phraya river boats. Use mobile data to time the next pier stop, translate a menu in the night markets, and pull up reviews before you commit to a plate of street food. Staying connected means you can wander the busy lanes and still find your way back without ever losing signal in the city centre.

Bangkok eSIM — online before you land

Why Horizon

Why choose our eSIM for Thailand

An eSIM lets you skip costly roaming and land already connected, with data working from the moment you arrive instead of queuing for a local SIM. Whether you're visiting family or seeing Thailand for the first time, you stay reachable without changing anything in your phone.

  • Find the plan that fits you

    From 1 GB for a quick trip to unlimited for the long haul — pick exactly what you need.

  • Easy to use

    Install in a couple of taps before you go, then it activates automatically when you arrive.

  • Avoid roaming charges

    Know exactly what you'll pay up front. No surprise bills, no hidden fees when you land.

  • One eSIM for all your travels

    Add new destinations and top up on the same eSIM — no new install for your next trip.

  • Stay connected

    We'll alert you as you approach your limit, so you can top up before you drop offline.

  • Global & regional plans

    Single-country, Europe-wide, or worldwide coverage — connect across borders and beyond.

Frequently asked questions

Which mobile networks does the Thailand eSIM use?

The Thailand eSIM connects to AIS, one of the country's main carriers. You get 5G coverage in Bangkok and the larger cities, and 4G across most other areas. Your phone picks the best available signal automatically, so you stay connected without changing any settings.

How well does coverage hold up when island-hopping around Phuket, Krabi and the Phi Phi islands?

On the main islands like Phuket and Koh Samui, and around the developed shore near Krabi, coverage is strong. On the boats between islands, on open water and in remote bays, the signal can drop in and out. Download your maps and booking details before you board so you are not caught offline mid-trip.

I'm visiting several countries in Southeast Asia. Is this plan enough?

This is a Thailand-only plan, so it works within Thailand. If your trip spans several countries in Southeast Asia, a single-country plan won't follow you across borders. For a multi-country route, choose a regional eSIM that covers the whole area instead.

Will the eSIM help me get around Bangkok's BTS Skytrain, river boats and tuk-tuks?

Yes. With live data you can map the BTS Skytrain, time the next river boat along the Chao Phraya, and show a tuk-tuk driver exactly where you're headed. Coverage is strongest in the city centre, which is where most of this getting-around happens.

When should I set up the eSIM before landing at Bangkok's Suvarnabhumi Airport?

Install the eSIM while you still have Wi-Fi at home, a day or two before you fly. The profile loads then but only starts using data once you land. That way it activates automatically as you reach the terminal at Bangkok's Suvarnabhumi Airport, with no setup needed on arrival.

Can I keep my own number and use a hotspot in Thailand?

Yes. The eSIM is a separate data line, so your usual number stays active for calls and texts over Wi-Fi or its own roaming, while the eSIM handles your data. Most phones also let you share that data as a hotspot, so a travelling companion or your laptop can get online too.