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siima
Regional

South East Asia eSIM

4 countries · 29 plans · from $5.86

The classic South East Asia backpacking circuit, covered end to end. Learn more about how eSIMs work →

Choose a data plan

Every plan below works across all 4 countries in South East Asia.

1 GB

South East Asia only

7 days· 0.2 GB per $1

$5.86

★ BEST VALUE

Unlimited

South East Asia only

1 days· ∞ GB per $1

$6.28

2 GB

South East Asia only

15 days· 0.3 GB per $1

$9.16

Unlimited

South East Asia only

3 days· ∞ GB per $1

$10.38

3 GB

South East Asia only

30 days· 0.3 GB per $1

$12.03

Unlimited

South East Asia only

5 days· ∞ GB per $1

$14.52

5 GB

South East Asia only

30 days· 0.3 GB per $1

$17.60

Unlimited

South East Asia only

7 days· ∞ GB per $1

$22.73

10 GB

South East Asia only

30 days· 0.4 GB per $1

$26.85

20 GB

South East Asia only

30 days· 0.5 GB per $1

$43.30

Unlimited

South East Asia only

10 days· ∞ GB per $1

$43.30

Unlimited

South East Asia only

15 days· ∞ GB per $1

$84.43

50 GB

South East Asia only

30 days· 0.6 GB per $1

$94.71

100 GB

South East Asia only

30 days· 0.7 GB per $1

$166.69

Unlimited

South East Asia only

30 days· ∞ GB per $1

$207.83

Countries covered

One eSIM, 4 countries — your data keeps working as you cross each border.

PhilippinesSingaporeThailandVietnam

Frequently asked questions

Do I need a new eSIM when I cross a border within South East Asia?
No. The same eSIM keeps working across every covered country — install it once and your data continues as you travel, with no plan change and no new QR code.
Is a South East Asia eSIM cheaper than buying one plan per country?
If you're visiting three or more countries it usually is, and it's simpler. For a trip to a single country, a local plan is normally the cheaper choice.
When does my plan start counting down?
Validity starts when the eSIM first connects to a network in a covered country, not when you buy it. You can install it before you fly and it will wait until you land.
What happens if I run out of data mid-trip?
You can buy another plan at any time and install it the same way — your existing eSIM stays on your phone, so there is nothing to remove first.