Travel in Asia with our prepaid eSIM

Buy a TooSIM eSIM for Asia and enjoy uninterrupted mobile internet in 15 countries, including Indonesia, Vietnam, Thailand, and even Australia. Plans start from just $7.99. Activation is quick and easy via QR code. No documents required: enter your email + payment details on our website or in the mobile app.

Prepaid Plans & Prices

Data
 
Reset
1 GB, 7 days
+15
$7.99
View offer
2 GB, 15 days
+15
$10.99
View offer
5 GB, 30 days
+15
$22.99
View offer
10 GB, 30 days
+15
$36.99
View offer
20 GB, 30 days
+15
$61.99
View offer
50 GB, 30 days
+15
$138.99
View offer

Best Coverage Across Asia 

This is a regional plan that provides nonstop internet access across 15 countries/regions: Australia, Hong Kong, Indonesia, Macau, South Korea, Sri Lanka, Malaysia, Singapore, New Zealand, Pakistan, Thailand, Taiwan, Uzbekistan, and Vietnam. You activate your TooSIM eSIM in the first country you enter, and after that, there’s nothing else to do. Your smartphone will automatically switch to the local network when you cross a border. 

You’ll also get access to multiple major networks, including China Mobile, Bharti Airtel, NTT Docomo, SK Telecom, Telstra, and others. Stay online everywhere: from the beaches of Bali to the megacities of Singapore or the streets of Hanoi.

Bharti Airtel Map of mobile coverage in Asia
Ais mobile Map of mobile coverage in Asia

Map of mobile coverage in Asia (source)

more Bharti Airtel speed tests in India

Bharti Airtel

This mobile operator has one of the most extensive networks in India. It provides access not only to 3G and 4G with average download speeds of 58.6 Mbps, but also to 5G, reaching up to 212 Mbps. Average upload speeds are 22.6 Mbps on 5G and 9 Mbps on 3G and 4G.

more Bharti Airtel speed tests in India (source

more NTT Docomo speed tests in Japan

NTT Docomo

This is Japan’s fastest network, delivering 5G download speeds of up to 160 Mbps with upload speeds of 10.2 Mbps. 3G and 4G performance is also strong, with average download speeds of 55 Mbps and upload speeds of 6.6 Mbps.

more NTT Docomo speed tests in Japan (source

Affordable Mobile Internet in Asia

Choose a plan to suit any travel style, from 1 GB to 50 GB, and enjoy great value on mobile data no matter which option you pick. The best deal offers data for as low as $2.78 per GB (with the 50 GB plan). For shorter trips the most popular option is the 5 GB plan (around $4.60 per GB).

Mobile Internet Without Borders

The Asia regional eSIM provides access to mobile networks across 15 countries. Get online instantly at airports in Vietnam, Singapore, or Indonesia as soon as you cross the border. No reactivation and no delays. It’s the perfect solution for travelers who want to explore multiple destinations across Asia.

eSIM Technical Details

Coverage
Tokyo, Delhi, Shanghai, Mumbai, Beijing, Karachi, Istanbul, Dhaka, Seoul, Bangkok
Cellular Networks
China Mobile, Bharti Airtel, NTT Docomo, SK Telecom, and Telstra
Plan Type

Prepaid eSIM: no contracts, subscriptions, or hidden fees

Unlimited: by request

Phone Number: not available (data only). Use WhatsApp, Viber or Facetime to call

SMS: not available

Connection: 3G, 4G, LTE, 5G

Top-up: not available

VPN: yes

ID/EKYC: not required

Activation and delivery

Delivery: Immediately after purchase, receive a QR code via email or follow instructions in the app

Activation: You have to get access to the internet to activate and esim

Travel eSIM: Compatible with a Wide Range of Devices

We continuously expand the list of devices that support our travel eSIM. You won’t have any issues installing it on market-leading flagships or the latest models, such as the iPhone 17 lineup, as well as on older devices. Smartphones from various brands are supported, including Samsung Galaxy and Huawei.

Install Asia Travel SIM in a few minutes

  • Online payment, instant delivery
  • Easy setup and activation instructions
  • More then 10 packages for Asia available

Download TooSim from App Store Download TooSim from Google Play

Faq

Which data plan is ideal for travel across Asia?
For light usage, 1 GB for 7 days at $7.99 works well, costing about $8 per GB. The 10 GB plan at $36.99 ($3.70 per GB) offers the best value for extended trips. For heavy users, 20 GB at $61.99 is ideal for a month
Does eSIM work in remote areas like the Himalayas or rural Japan?
Yes, but coverage depends on local operators like NTT Docomo in Japan or Airtel in India. Check coverage maps before traveling.
Can I rely on eSIM for apps like Grab or Gojek in Southeast Asia?

Yes, eSIM supports these apps in cities like Bangkok or Jakarta, ensuring navigation and service access.

Will eSIM activate upon landing at airports like Changi or Incheon?
Yes, if pre-installed, it activates automatically when you enable roaming.