Best eSIM for Thailand
Thailand is one of the easiest countries in Asia to travel through — and one of the most painful to start a trip in if you're queuing for a SIM at Suvarnabhumi at 1am. AIS, DTAC, and TrueMove counters at the airport are slow, want your passport, and charge a tourist mark-up for the privilege.
An eSIM skips all of it. Install before you fly, scan a QR code over your home Wi-Fi, and your phone connects to a Thai carrier the moment you land. Pad Thai → maps → Grab → hotel, all working before you've cleared customs.
A Thai SIM at the airport costs 30 minutes you'll never get back. An eSIM costs nothing.
Why an eSIM makes sense for Thailand
In the past, most travellers bought a local SIM from AIS, DTAC, or TrueMove at the airport. This still works, but an eSIM is easier:
- No queue at the airport — Bangkok airports can have long SIM card queues, especially at peak times
- No passport registration hassle — Thailand requires ID registration for local SIMs
- Set up before you land — have data working the moment you arrive
- Keep your home number — important for two-factor auth and staying reachable
Coverage in Thailand
Thailand has excellent 4G coverage across the country, including:
- Bangkok — fast, reliable data everywhere
- Chiang Mai and Chiang Rai — strong coverage throughout the cities
- Phuket, Koh Samui, Krabi — good coverage on major islands
- Koh Phangan, Koh Lanta — generally good, some spotty areas on remote beaches
- Koh Lipe, Koh Chang — coverage available but can be inconsistent in remote spots
5G is available in Bangkok and expanding to other major cities.
How much data do you need in Thailand?
Thailand's affordability extends to data — plans are cheaper than European or Japanese equivalents. But how much do you actually need?
- Backpacker/budget traveller (using hostel Wi-Fi mostly): 1–3 GB per week
- Regular tourist (maps, social media, messaging): 3–5 GB per week
- Digital nomad (video calls, hotspot for laptop): 10–20 GB per week
Most accommodation in Thailand has Wi-Fi, so you'll primarily use mobile data while out and about. Try our data calculator for a personalised estimate.
eSIM vs buying a local SIM at the airport
| eSIM | Airport SIM | |
|---|---|---|
| Price | Slightly higher | Very cheap ($3–8/week) |
| Setup time | 0 min at airport | 15–45 min (queues) |
| Passport needed | No | Yes (photo + registration) |
| Language barrier | None | Possible |
| Keep your number | Yes | Need dual-SIM phone |
The trade-off: Local SIMs are cheaper, especially for longer stays. But the convenience of having data from the moment you land — and skipping the airport SIM counter — is worth the small premium for most travellers.
Best eSIM providers for Thailand
CocoRoam
We offer Thailand eSIM plans with full-speed 4G/5G data and hotspot support. Competitive pricing for both short trips and extended stays.
Airalo
Airalo has several Thailand plans across different price points. Good selection of small data packs starting from 1 GB.
Holafly
Unlimited data plans for Thailand by duration. Good for heavy users, especially digital nomads in Chiang Mai who want zero data anxiety.
Thailand data tips
- Grab and Bolt (ride-hailing apps) need data to work — essential in Bangkok and popular with tourists across the country
- Google Maps works well in Thailand, including for transit in Bangkok (BTS, MRT)
- LINE is popular locally — if you're interacting with Thai businesses or tours, they often prefer LINE over WhatsApp
- Food delivery apps (Grab Food, Foodpanda) are extremely popular and affordable — data makes these accessible
- Island hopping? Download offline maps before heading to smaller islands where coverage may be spotty
For digital nomads in Thailand
Chiang Mai and Bangkok are major digital nomad hubs. If you're working remotely:
- Co-working spaces (Punspace, CAMP, Hubba) have excellent Wi-Fi
- Use your eSIM as backup and for on-the-go connectivity
- Hotspot support is essential for working from cafés without great Wi-Fi
- Budget 10–20 GB per month on mobile data, with Wi-Fi handling most heavy work
Ready to get connected?
Coverage and networks
CocoRoam connects to all major of Thailand's major carriers. Your phone hops between them automatically, picking the strongest signal — same as locals.
AIS
DTAC
Orange
Pick a plan that matches your trip.
Three sizes that cover most trips. All come with hotspot, tethering, and full 4G/5G speeds.
From US$2.50
Short trip
Perfect for a long weekend in Thailand.
US$2.50
- Hotspot included
- Local 4G/5G
- Top up if needed
Most popular
Two-week tour
The standard Thailand trip — covers most travellers.
US$113.00
- Hotspot included
- Local 4G/5G
- Top up if needed
Unlimited
Unlimited
Heavy use, streaming, hotspot for a laptop.
US$3.00
- Hotspot included
- Local 4G/5G
- Top up if needed
The travel tips no other guide tells you.
Grab beats Google Maps in cities
Use Grab for getting around Bangkok and Chiang Mai — cheaper, integrated, and the drivers know the small sois.
Coverage thins out in the islands
AIS holds up best on Koh Lipe and the deeper south. Phuket and Samui are fine on any network.
Cash is still king at street markets
Pull baht from a 7-Eleven ATM rather than the airport — the rate is materially better.
Bolt + LINE are the local apps
LINE is how locals actually message. Add it in the airport queue.
