ZenSim offers travel eSIMs for over 200 countries starting at $10, with flexible plans from 3GB to Unlimited data. Manage your eSIMs easily through the ZenSim app, and get fast support on WhatsApp or Messenger. With a 4.9-star service rating, staying connected abroad has never been easier.
ZenSim 
ZenSim offers travel eSIMs for over 200 countries starting at $10, with flexible plans from 3GB to Unlimited data. Manage your eSIMs easily through the ZenSim app, and get fast support on WhatsApp or Messenger. With a 4.9-star service rating, staying connected abroad has never been easier.
ZenSim eSIM Data Plans for Southeast Asia
Asia+ 5GB - 10 Days
5GB
10
Days
$17.00
$3.40/GB
15 CountriesAsia+ 5GB - 30 Days
5GB
30
Days
$18.00
$3.60/GB
15 CountriesAsia+ 10GB - 10 Days
10GB
10
Days
$26.00
$2.60/GB
15 CountriesAsia+ 10GB - 30 Days
10GB
30
Days
$29.00
$2.90/GB
15 CountriesAsia+ 20GB - 10 Days
20GB
10
Days
$32.00
$1.60/GB
15 CountriesAsia+ Unlimited STANDARD - 10 Days
3GB
/day
/day
10
Days
$36.00
$1.20/GB
15 CountriesAsia+ 20GB - 30 Days
20GB
30
Days
$36.00
$1.80/GB
15 CountriesAsia+ Unlimited STANDARD - 30 Days
3GB
/day
/day
30
Days
$70.00
$0.78/GB
15 CountriesFrequently Asked Questions
Does ZenSim offer unlimited data eSIM for Southeast Asia?
ZenSim does not offer a truly unlimited high‑speed data eSIM for Southeast Asia. The plans labeled “Unlimited” in ZenSim’s catalogue provide a fixed amount of high‑speed data—3 GB per day for the “Asia+ Unlimited STANDARD” plans—after which the speed is throttled.
If higher data usage is required, ZenSim offers fixed‑data plans that cover the same Southeast Asian countries. Examples include the “Asia+ 20GB” plans for 10 or 30 days and the “Asia+ 10GB” plans for 10 or 30 days. These fixed‑data options provide more cost effective coverage for travelers who need a reliable amount of high‑speed data.
Does ZenSim offer Southeast Asia eSIM with phone number and SMS?
ZenSim does not offer eSIM plans that include a phone number or SMS capability for Southeast Asia. The provider sells only data‑only eSIMs, so travelers will not receive an inbound or outbound voice line or SMS service on this network.
Users who need voice or text communication can rely on internet‑based applications such as WhatsApp, Telegram, or iMessage, which operate over the data connection that the ZenSim eSIM provides.
What countries are covered by ZenSim's eSIM plans in Southeast Asia?
ZenSim’s Asia+ plan provides coverage in Indonesia, Malaysia, Philippines, Singapore, Thailand and Vietnam within Southeast Asia.
Summarized by Gen AI. Last updated:
Southeast Asia Also Covered By
data plans for the provider(s) with this icon are programmatically fetched and updated.