Roamlinx · Travel eSIMs for 190+ countries
Thailand, Singapore, Vietnam, Indonesia & Malaysia eSIM – regional internet without roaming fees
Buy the Thailand, Singapore, Vietnam, Indonesia and Malaysia eSIM online – instant email delivery, QR activation, no roaming fees.
Stay connected effortlessly with our flexible data plans
Instant email delivery · QR setup in 3–5 min · Keep your number · Secure checkout (Stripe/PayPal)
Key Information
- ✓ Thailand, Singapore, Vietnam, Indonesia and Malaysia eSIM ready in 3 minutes
- ✓ No contract, no hidden fees
- ✓ Keep your WhatsApp number
Network Coverage
- ✓ Auto-connects to best network
- ✓ Stable 4G/5G in key cities across the region
- ✓ LTE/5G where available
Who it's for
- ✓ Travelers to Thailand, Singapore, Vietnam, Indonesia and Malaysia
- ✓ Remote work, maps, streaming
- ✓ Hotspot for laptop or family
Why eSIM
- ✓ No physical SIM card
- ✓ Instant activation
- ✓ Buy online, QR by email
One eSIM covers Thailand, Singapore, Vietnam, Indonesia, and Malaysia.
Install by QR, keep your primary SIM for calls/SMS.
Automatic network selection with 4G/5G where available.
Travel across five Southeast Asia stops with one eSIM activation and no classic roaming fees.
Why the Thailand, Singapore, Vietnam, Indonesia and Malaysia eSIM is the best choice?
Travel across Thailand, Singapore, Vietnam, Indonesia and Malaysia often spans multiple countries in one trip. A regional eSIM keeps you online without buying separate SIM cards or paying roaming fees.
Covered countries
- Thailand
- Singapore
- Vietnam
- Indonesia
- Malaysia
Need more local data in one country? Choose a single-destination eSIM.
Thailand eSIM | Singapore eSIM | Malaysia eSIM | Singapore, Malaysia and Thailand eSIM | Singapore and Malaysia eSIM
We do not carry a single package for exactly this set of countries — but these cover your trip:
One eSIM for the whole trip
Or a separate eSIM per country
FAQ
Key takeaways
How Unlimited data speed works
Unlimited plans give you the full-speed data shown on the card. After you use that allowance, data keeps working at a reduced speed until the end of the UTC day. Example: 500MB / 1 Day Unlimited - 512 Kbps = 500MB at full speed, then 512 Kbps until 00:00 UTC.
180 Days to Activate
Purchase your eSIM now and activate it anytime within 180 days from the date of purchase. Just install the eSIM and connect to the mobile network in your destination country to enjoy uninterrupted internet access!
More key takeaways
Full Tethering Support
Want constant internet access while traveling and to share it with other devices? Our plans fully support tethering, so you can easily share your mobile data with devices like laptops, tablets, or your friends' phones.
We do not block or restrict tethering in any way. Whether you're working remotely, traveling, or just need a quick Wi-Fi hotspot – you can use your data freely, with no hidden fees or limitations.
Easy eSIM Activation
Activating your eSIM is incredibly easy and fast. After purchase, you’ll receive all the necessary instructions to install the eSIM profile in just a few minutes. No physical SIM card or store visit required – everything is digital, giving you instant connectivity!
Your Smartphone Doesn't Support eSIM?
If your smartphone doesn’t support eSIM technology, don’t worry! There’s a solution. Visit <a href="https://9esim.com" class="inline-link" target="_blank">9esim.com</a> to learn how to easily enable eSIM support on your device and enjoy the flexibility of our data packages.
Keep Your Original SIM Card
While using our eSIM, your original SIM card will continue to work. The eSIM only provides data connectivity, which means you can still receive calls and SMS on your current number while enjoying affordable internet during your travels.