Traveller using a phone with a Thailand eSIM

Thailand eSIM
Book a Grab before you leave arrivals

The half hour after you clear customs is when you need data most. With an eSIM installed you can order a Grab, confirm the hotel pin and message the guesthouse while still walking to the taxi rank — no queueing at a carrier desk, no passport registration.

  • ✅ Nationwide 4G / 5G
  • ✅ Unlimited daily data
  • ✅ Hotspot sharing
  • ✅ Keep your home number
Bangkok, Chiang Mai, Phuket and Koh Samui all covered
4G / 5GThai networks
1–90Days available
UnlimitedData per day
24/7Live support
Why an eSIM in Thailand

In Thailand, a connection is peace of mind

Ride-hailing, ferry times, driver coordination, translation, and knowing what a fair price looks like — all of it runs on data.

Grab instead of negotiating

Metered taxis are not always metered. Grab and Bolt show the route and a fixed fare up front, which removes the haggling entirely — but they need data to book, track and pay.

Signal from the moment you land

Carrier desks at Suvarnabhumi, Don Mueang, Phuket and Chiang Mai often have long queues. An eSIM is already active when you switch off airplane mode.

Islands are covered

Phuket, Samui, Koh Tao, Krabi and Phi Phi all have tower coverage in the main town and beach areas — enough for ferry schedules, dive shop messages and photo uploads.

Translation on demand

Google Translate's camera mode makes Thai menus and signs readable instantly, and guesthouses and private drivers usually coordinate over LINE or WhatsApp.

Simpler than a local SIM

No queueing, no passport registration, no risk of buying the wrong package across a language gap, and no APN settings to type in at the counter.

Home number stays live

The eSIM carries data only, so your usual SIM keeps receiving bank codes and card alerts while you travel.

Check Thailand eSIM prices →

Choosing days

How many days do you need?

Days run in 24-hour blocks from activation. Count your arrival and departure days both.

Suggested plan lengths by trip type — always check against your actual flight dates
Trip Typical length Suggested eSIM Notes
Bangkok long weekendFri–Sun3 daysA budget red-eye still counts as a full day.
Classic Bangkok trip5 days5 daysHeavy Grab and map use across the city.
Bangkok plus Pattaya6 days6 daysIntercity travel needs steady navigation.
Chiang Mai and Chiang Rai6–7 days7 daysMountain roads — pick nationwide coverage.
Phuket or Samui beach week7 days7 daysIsland hopping means checking ferries and weather.
Slow travel or remote work1–3 months30 / 60 / 90 daysLonger plans cost far less per day.

Price my trip length →

Setup

Installing your Thailand eSIM

Done at home in five minutes. Nothing to configure after you land.

  1. Choose Thailand and your days

    Confirm the plan is unlimited per day and allows hotspot sharing.

  2. Pay online

    Card or PayPal. The eSIM QR code is emailed to you straight away.

  3. Scan on Wi-Fi

    iPhone: Settings → Cellular → Add eSIM → Use QR Code. Android: Settings → Network & internet → SIMs → Add eSIM.

  4. Land and enable roaming

    Turn off airplane mode, set mobile data to the Thailand eSIM, and switch data roaming on for that line.

Important: install on Wi-Fi before you leave — the process needs a connection. Do not delete the profile once installed, as QR codes are usually single-use. And turn data roaming off on your home line so your own carrier does not bill you.

Practical notes for Thailand

Which Thai network will I be on?

Thailand's main operators are AIS, True Move H and dtac (now merged with True). Travel eSIMs generally roam onto AIS or True, which have the widest reach across greater Bangkok, the BTS and MRT lines, Chiang Mai, Phuket and the main islands.

Islands and mountains

Town centres, beach strips and resort areas on Phuket, Samui, Krabi and Koh Tao have solid coverage. Expect gaps during ferry crossings, at offshore dive sites and on remote roads in the far north. Download offline maps in advance and screenshot ferry times and booking references.

Apps worth installing before you fly

  • Grab: rides and food delivery. Register and add a card before you travel.
  • Bolt: a useful alternative in Bangkok, often cheaper at peak times.
  • Google Translate: download the Thai offline pack for camera translation.
  • Google Maps: save your itinerary pins and download the Bangkok offline area.

Can I make phone calls?

Travel eSIMs are data-only and do not include a Thai number, so local calls and Thai SMS are not available. Guesthouses, private drivers and dive shops almost always communicate over LINE or WhatsApp. For the rare case where a local call is needed, hotel reception can place it for you.

Flying to Thailand soon?

Pick your days, pay, scan. You will be online at Suvarnabhumi, Chiang Mai or Phuket the moment you land.

Get your Thailand eSIM →
FAQ

Thailand eSIM questions

Should I install the eSIM at home or after arriving in Thailand?

Install at home on Wi-Fi, since the process needs an internet connection. Installing does not start the clock — most plans begin counting days when you actually connect to a Thai network.

Does a Thailand eSIM use AIS or True?

It depends on the plan. Mainstream travel eSIMs roam onto AIS or True, both of which cover Bangkok, Chiang Mai, Phuket and the main islands well. The provider's plan page states which network is used.

Is an eSIM better value than buying a SIM at the airport?

Prices are comparable, but the eSIM saves the queue, the passport registration and the risk of buying the wrong package across a language gap. It is also already working when you land, so you can book a ride immediately.

Can I tether and share with travel companions?

Most unlimited Thailand plans support personal hotspot, so one purchase can cover a couple or a family. Some budget plans block tethering, so confirm before buying.

Will I have signal on Phuket and Koh Samui?

Yes, in town centres, beach areas and resorts. Ferry crossings, offshore dive sites and a few remote mountain roads can drop out, so download offline maps and save key details as screenshots.

Does Grab work properly on an eSIM?

Yes — Grab only needs a data connection, not a Thai number. Register and add your card at home first, because sign-up may send an SMS code to your existing number.

Which phones work with a Thailand eSIM?

iPhone XR / XS and newer, Samsung Galaxy S20 and newer, Google Pixel 3 and newer, and most mid-to-high-end Android phones from 2020 onwards. Check Settings → General → About for an EID, and make sure the phone is carrier-unlocked.

Back to the full eSIM guide

Get Thailand sorted before you fly

No queue, no deposit, no passport registration. Scan once and land connected.

Get your Thailand eSIM →
Get your Thailand eSIM →