Thailand
Thailand has cheap, fast and widely available data, including on most islands — one of the easiest and best-value eSIM destinations anywhere.
Updated October 2026
Ranked
Flat rates across 130+ destinations
Trustpilot 4.4 · $ · 4G or 5G
Voye covers 130+ destinations with instant activation and mostly flat per-country pricing, which makes budgeting a multi-country trip unusually simple.
Best all-round pick
Trustpilot 4.6 · $ · Mostly 5G
Maya offers prepaid and unlimited eSIM plans on fast 4G/5G data. Hotspot sharing is supported, which makes it a solid choice for both short city breaks and longer stays.
The widest destination catalogue
Trustpilot 4.0 · $+ · 4G or 5G
Airalo is the original travel eSIM and still has the widest single-country selection on the market, with instant activation and a well-rated app.
Privacy-first, built by the NordVPN team
Trustpilot 4.7 · $+ · 3G / 4G / 5G
Saily is made by the team behind NordVPN and pairs affordable, flexible data plans in 200+ destinations with built-in security features.
Best for frequent flyers
Trustpilot 4.7 · $ · 4G or 5G
Jetpac runs a single eSIM across 200+ destinations on high-speed data, and adds SmartDelay: free airport lounge access when your flight is delayed 60 minutes or more.
At a glance
| eSIM provider | Price | User rating | Network | Main features | Offer |
|---|---|---|---|---|---|
| 1. | $ | 4.4 | 4G or 5G | Flat pricing, free trial | |
| 2. | $ | 4.6 | Mostly 5G | Speed, pricing, at-sea coverage | |
| 3. | $+ | 4.0 | 4G or 5G | Coverage breadth, app quality | |
| 4. | $+ | 4.7 | 3G / 4G / 5G | Security tooling, flexible plans | |
| 5. | $ | 4.7 | 4G or 5G | Lounge perk, strong ratings |
Choosing
Coverage
Data budget
Local detail
Trip length
On the ground
Thailand's market is dominated by AIS and TrueMove H, with the state-backed NT as a smaller third player.
AIS and TrueMove H both run extensive 4G and 5G covering Bangkok, Chiang Mai, Phuket and most provincial towns.
5G is widely available in the cities and along the main tourist corridors, while rural stretches and national parks stay on 4G.
Travel eSIMs typically ride on AIS or TrueMove H, which covers the vast majority of visitor itineraries comfortably.
Popular destinations
Bangkok's Skytrain lines, malls and old-town temples all sit inside strong 4G and 5G coverage.
Phuket, Krabi and Koh Samui have solid coverage in the resort areas, dipping in remote coves.
Chiang Mai and the northern towns are well covered, though signal thins on mountain trekking routes.
Koh Phangan and Koh Tao are fine near the piers and main beaches and weaker inland.
Local or regional
A Thailand-only eSIM is cheaper when the whole trip stays inside the country.
Combining Thailand with Vietnam, Malaysia or Singapore avoids profile swapping on a regional plan.
Regional plans carry a slightly higher price per gigabyte in exchange for multi-country convenience.
Frequent Southeast Asia travellers on multi-stop routes usually find the regional option pays off.
Tomer Gips, Digital Nomad & eSIM Reviewer
I'm a digital marketer who travels full-time and tests eSIMs in every country I visit. Every review is based on personal speed testing, verified Trustpilot data, Reddit conversations, and real-world feedback from travelers. I don't accept sponsored content or affiliate bias — just unfiltered, practical reviews for people like you.
Thailand eSIM