Southeast Asia eSIM: Thailand, Vietnam, Bali, Singapore & Malaysia
The Southeast Asia plan covers the five most visited countries in the region on one eSIM. Bangkok to Bali, Hanoi to Kuala Lumpur.
Short answer: the VoaSim Southeast Asia eSIM covers Thailand, Vietnam, Indonesia (including Bali), Singapore and Malaysia with unlimited data on a single eSIM for the whole trip. 10 days cost USD 28.90 and 15 days USD 41.90.
✓ Unlimited data✓ 5 countries, one eSIM✓ Grab and maps working✓ Instant delivery by email✓ Human support 24/7✓ Price locked before you pay
Same destination, three stores. Prices collected by the VoaSim eSIM Price Index on 14/10/2026.
VoaSim
Airalo
Holafly
7 days
USD 22.90
USD 21.00
USD 27.50
10 days
USD 28.90
USD 31.00
USD 36.50
Data
Unlimited
Unlimited, slows after 5 GB/day
Unlimited
How it works
1
Buy in 2 minutes
Get your price and pay by card. The eSIM arrives by email with a QR code and a guide.
2
Install before you fly
On home Wi-Fi, scan the QR. The line stays off until you land.
3
Land connected
Turn on data for the eSIM when you arrive. At the next border your phone switches network by itself.
Why trust VoaSim?
Real, registered company: invoice with every purchase, payment processed by Stripe (the same platform behind Amazon and Shopify) and a real guarantee: if the eSIM won't connect and our support can't fix it, we refund 100%. Human support, on your schedule.
Which countries does the Southeast Asia eSIM cover?
Thailand, Vietnam, Indonesia (Bali, Jakarta, Lombok, Gili), Singapore and Malaysia, all on the same eSIM.
Are Cambodia, Laos and the Philippines included?
Not in this plan. Cambodia and the Philippines are in the Asia plan (15 countries). Laos is sold as a single-country eSIM.
Does it work on the Thai islands and in Bali?
Yes, wherever local networks reach: Phuket, Krabi, Koh Samui, Koh Phi Phi, Ubud, Canggu, Uluwatu and the Gilis. Open-sea boat crossings can drop signal, as with any SIM.
Do I need a new SIM in each country?
No. The same eSIM works in all five. When you arrive in the next country, your phone switches network on its own.
How much is a Southeast Asia eSIM?
10 days cost USD 28.90 and 15 days USD 41.90 with today's offer. On long trips a day costs from USD 2.03/day. 2 or more eSIMs in one order get 10% off.
Do Grab and Gojek work?
Yes. Grab, Gojek, Bolt, Google Maps and translators work normally.
Is the data really unlimited?
Yes. Use data as you need during the trip. Hotspot/tethering is not allowed by the local networks.
When do the days start counting?
When the eSIM first connects at your destination. Install it before you fly, on home Wi-Fi, and keep the line off until you land.
Is my phone compatible?
iPhone XR or newer, Samsung Galaxy S20 or newer and most phones from 2020 on. Message us before paying and we will confirm your model.
Is it better than a local SIM?
With more than one country on the trip, yes: one eSIM bought before you fly, no airport queue and no passport registration in each country.