eSIM Thailand
12 eSIM packages
Overview Thailand sits at the heart of Southeast Asia, bordered by Laos, Myanmar, Cambodia and Malaysia. Its capital, Bangkok , is one of the world's top tourist cities, drawin...
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eSIM Thailand
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Thailand sits at the heart of Southeast Asia, bordered by Laos, Myanmar, Cambodia and Malaysia. Its capital, Bangkok, is one of the world's top tourist cities, drawing more than 22 million international visitors a year. The country is famous for its gilded temples, world-class street food, pristine beaches and the warm hospitality of the "Thai smile".
- Language: Thai. English is common in Bangkok, Phuket, Pattaya and Chiang Mai.
- Currency: Baht (THB, ฿). 1,000,000 VND ≈ ฿1,350.
- Time zone: GMT+7 (same as Vietnam).
- Power outlet: Type A, B, C — compatible with Vietnamese plugs, 220V / 50Hz.
- Visa: Vietnamese travelers are visa-exempt for stays under 30 days.
Thailand has three major operators: AIS, TrueMove H and DTAC. The mobile network is well developed and constantly being upgraded.
- 5G: Available in Bangkok, Phuket, Pattaya, Chiang Mai and Chiang Rai. Average speeds 100–300 Mbps.
- 4G/LTE: Covers nearly the entire country, including Phi Phi, Koh Samui and Krabi.
- Wi-Fi: Free Wi-Fi is widely available in hotels, restaurants and cafés, generally with reliable speeds.
- Smaller islands: Coverage is strong on Phuket, Koh Samui and Phi Phi, but can be weaker on remote islands or inside national parks.
The Thailand eSIM typically roams on AIS — the operator with the broadest coverage — making it especially well suited to travelers moving between Bangkok and the islands.
- Bangkok — The Grand Palace, Wat Pho, Wat Arun, Chatuchak weekend market and the Khao San Road backpacker district.
- Chiang Mai — The northern ancient capital with over 300 temples, the Saturday night market, Doi Suthep mountain and the Yi Peng lantern festival.
- Phuket — Thailand's largest island, with Patong, Karon and Kata beaches, plus the famous Phi Phi Islands.
- Pattaya — A lively beach resort near Bangkok, home to Nong Nooch Garden and the Sanctuary of Truth.
- Krabi & Koh Samui — Heavenly beaches, coral diving and Phang Nga Bay (a James Bond film location).
- Payments: Cash is still common for night markets, taxis and tuk-tuks. Visa/Mastercard works well at hotels and large malls. PromptPay (QR code) is becoming widespread.
- Getting around: Grab works well in Bangkok and Phuket. BTS Skytrain and MRT are the fastest way around Bangkok.
- Bargaining: Expected at night markets and small shops — start by halving the asking price.
- Etiquette: Respect images of the King, don't point your feet at people, and remove your shoes before entering temples.
- Street food: Delicious and generally safe. Try pad Thai, tom yum, mango sticky rice and som tam (papaya salad).
- Seasons: November to February is cool and dry — peak travel time. June–October is the rainy season.
Bangkok demands constant Google Maps to navigate between BTS, MRT, Grab and taxis. Out on Phuket or Koh Samui, a mobile connection lets you book diving tours, transfer money in apps and hail rides. The Thailand eSIM uses AIS — the country's #1 operator — keeping you online from remote islands to Khao Yai National Park. Installation takes 5 minutes, with no need to hunt down a physical SIM at Khao San Road.
Benefits of buying from eSIM Duhy
Before you buy
$45,000
Why choose eSIM Duhy?
Instant delivery
Get eSIM via email, scan QR to install, ready to connect on landing.
No hidden fees
Prepaid plans, no roaming charges. Use Zalo, Telegram, Messenger freely.
Wide coverage
Fast, stable network everywhere with top local carriers.
24/7 support
Multi-channel technical support: Hotline, Zalo, Email.
What customers say
Thousands of customers trust our eSIM service
"First time using eSIM and I'm truly impressed. No need to visit an airport telecom counter, just scan the QR code for instant high-speed Internet. So convenient!"
Thanh Ha
Hanoi
"Traveled with friends, setup was simple, stable network everywhere. Especially convenient for sharing WiFi hotspot. Great value for the quality."
Minh Anh
Ho Chi Minh City
"Frequent business traveler who's tried many solutions. eSIM Duhy is optimal — fair pricing, fast speeds, 24/7 support is very responsive."
Duc Tri
Da Nang
Frequently asked questions
Common questions about travel eSIM for Thailand
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Can I use Zalo, Messenger with the eSIM?
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How to use eSIM
Choose an eSIM plan
Find your destination and select a data plan that fits your needs.
Make payment
Pay securely via VNPay. Receive your activation QR code via email in 5 minutes.
Connect & enjoy
Scan the QR code to install eSIM, enable data roaming and enjoy high-speed internet.
