Guide to SIM Cards or eSIMs in Thailand (2026 Update)

Why You Need a Thai SIM or e-SIM

Thailand has one of the best mobile network coverages in Southeast Asia, and although Wi-Fi is common in cafes and hotels, you'll need a SIM card or e-SIM to get around easily.

• Constant access to Google Maps or Thailand’s ride-hailing app
• Reliable internet for social media and messaging

Tip: Buying a SIM or e-SIM in Thailand is cheaper and faster than international roaming. For additional tips on getting around, see our Bangkok transportation guide.

Where to Buy a SIM Card in Thailand

1. At the Airport (Best for Convenience)

Major airports such as Bangkok Suvarnabhumi (BKK), Don Mueang (DMK), Phuket (HKT), and Chiang Mai (CNX) have official booths for:

• AIS
• True Move H

Staff will activate your SIM and register your passport in minutes. Most counters operate 24/7.

• Price range: 150–600 THB (2026 rates remain stable and competitive)
• Activation time: 5–10 minutes
• Documents needed: Passport

Ideal for short-term visitors who want immediate internet access near arrival points. Check out Suvarnabhumi Airport’s history if you’re flying into Bangkok.

2. At 7-Eleven or Mini Marts

You can buy prepaid SIM cards from 7-Eleven, Family Mart, or Lotus’s Go Fresh. Passport registration is required before you can activate it. In 2026, major retailers make the process even more streamlined.

• Price: 150–400 THB
• Availability: Everywhere in Thailand

Staff may not always speak English fluently, but the process is quick. Grab a SIM and your favorite snack anywhere, from bustling Phuket to cozy Chiang Mai.

3. At Official Mobile Stores

If you want help choosing a long-term plan, visit:

• AIS Shop
• True Move H Shop

Located in malls such as ICONSIAM, Central World, Terminal 21, and Jungceylon Phuket.

You can get custom data plans or convert to an e-SIM at official stores.

e-SIM in Thailand (Digital SIM Option)

If your phone supports e-SIM, you can connect even before landing in Thailand. e-SIMs work virtually without a physical card.

Benefits of e-SIMs

• Activate online before your trip
• Keep your home number active for calls
• Switch between countries easily
• No risk of losing a physical SIM

How to Get a Thai e-SIM

You have two options:

1. Buy Directly from Thai Providers

• AIS e-SIM for Tourists
• Buy online or in-store; offers 15–30-day packages with 5G or 6G (2026) speeds.
• Visit the website: www.ais.th
• True Move H e-SIM
• Offers prepaid and tourist packages; supports QR code activation.
• Visit the website: www.truemoveh.com

For tips on staying in major cities, don’t miss Bangkok’s best hotels.

2. Use International e-SIM Providers

If you prefer to set up before your flight, try:

• Airalo (Thailand Truphone or DTAC Go) – from $4.50
• Holafly (Unlimited data e-SIM) – from $19
• Nomad e-SIM – flexible daily plans

Perfect for travelers moving across multiple Asian countries or visiting several local islands.

Network Coverage in Thailand

If you’re in Bangkok, you don’t need to worry about coverage. All major networks, AIS or True Move, offer excellent 5G/6G signals city-wide. For Chiang Mai or Pai, AIS is the best choice, providing the widest and most reliable coverage. In Phuket or Krabi, both True Move and AIS work well for seamless connectivity.

Visiting Koh Samui or Koh Phangan? AIS remains the most reliable. For Isaan (Northeast Thailand), AIS is again recommended for its extensive rural reach. For more info on regional travel, see our tips for cheap, efficient travel.

Internet Speed in 2026

Thailand’s 5G/6G infrastructure continues to expand.

• Average mobile download speed: 100–120 Mbps
• 5G/6G in urban areas: up to 1,200 Mbps (AIS & True Move 2026 update)
• 4G coverage: Still over 98% nationwide

Streaming, video calls, and Google Maps all work seamlessly.

Final Conclusion

Buying a SIM card or e-SIM in Thailand in 2026 is simple, fast, and affordable. Whether you choose AIS for unbeatable coverage, True Move H for blazing speeds, or dtac for excellent value, you’ll stay connected across cities, beaches, and mountains. For maximum convenience, consider an eSIM—activate before you fly, and start exploring Thailand connected from the moment you land.

If you're planning your next trip, check out our guide on whether 2026 is the best year to visit Thailand.