South East Asia Travel eSIM
The RoamMore South East Asia eSIM covers 8 countries on one plan. At standard use (about 1GB a day), a week costs US$19.30 on the 10GB, 30 day plan on the South East Asia (8 areas) list and two weeks US$37.50 on the 20GB, 30 day plan on the South East Asia (8 areas) list.
Your trip
About 1GB a day
10GB, 30 daysUS$19.30
US$1.93 per GB, South East Asia (8 areas) list
Birthday sale: 30% off with BIRTHDAY30 until 9 Oct.
75% of them have a 5G network. Plans of 1GB or more start at US$4.20, and unlimited daily plans at US$4.40 a day, or one price for the whole trip on Endless, from US$18.70 for a week. Days start when it first connects in a covered country, not when you install it.
Light or heavy user? See trip costsFind my planHow much data do I need?
South East Asia eSIM key facts
- Coverage
- 8 countries on one plan
- Coverage lists
- South East Asia (8 areas): 8 countries, 5G in 75%, 1GB or more from US$4.20
- Cheapest plan, 1GB or more
- US$4.20 for 1GB, 7 days, South East Asia (8 areas) list
- Best price per GB
- US$1.88 per GB on 20GB, 30 days, South East Asia (8 areas) list (US$37.50)
- Plans
- 11: 6 fixed, 5 unlimited daily
- Unlimited daily
- from US$4.40 a day (1GB a day at full speed)
- Endless, one trip price
- US$18.70 for a week at 1GB a day
- Days start
- On first connection in a covered country
- Install window
- 180 days from purchase
- Internet exit (breakout)
- Singapore
- Hotspot
- Allowed on the daily plans
- Calls and texts
- Data only; app calls work
Prices and networks checked 27 Sep 2026 from our live catalogue. Reviewed by Nicholas, founder.
South East Asia eSIM plans
Grouped by coverage list, smallest first. Prices in USD, updated 27 Sep 2026. Buy sends you to our shop's secure Stripe checkout.
Enter code BIRTHDAY30 at checkout for 30% off every plan below.
South East Asia (8 areas)
See all 8 covered countries
Cambodia, Indonesia, Laos, Malaysia, Philippines, Thailand, Timor-Leste, Vietnam
| Data | Valid for | Price | Buy |
|---|---|---|---|
| 1GB | 7 days | $4.20 USD | Buy |
| 3GB | 15 days | $7.70 USD | Buy |
| 3GB | 30 days | $8.10 USD | Buy |
| 5GB | 30 days | $11.50 USD | Buy |
| 10GB | 30 days | $19.30 USD | Buy |
| 20GB | 30 days | $37.50 USD | Buy |
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Unlimited South East Asia eSIM: daily plans
Unlimited daily: a fresh block of full-speed data every day, then unlimited at reduced speed. Rows marked Endless open Endless, where you pick your days and pay one price for the whole trip.
Enter code BIRTHDAY30 at checkout for 30% off every plan below.
South East Asia (8 areas)
See all 8 covered countries
Cambodia, Indonesia, Laos, Malaysia, Philippines, Thailand, Timor-Leste, Vietnam
| Full speed / day | Billing | Price / day | Buy |
|---|---|---|---|
| 1GB | per day | $4.40 USD | Choose |
| 2GB | per day | $6.60 USD | Choose |
| 3GB | per day | $8.40 USD | Choose |
| 5GB | per day | $10.30 USD | Choose |
| 10GB | per day | $17.40 USD | Choose |
How much is a South East Asia eSIM for one or two weeks?
The cheapest plan on this page that covers each trip, whichever list it is on: check that list has every stop.
| Data use | One week | Two weeks |
|---|---|---|
| Lightabout 300MB a day | US$7.703GB, 15 days, South East Asia (8 areas) list | US$11.505GB, 30 days, South East Asia (8 areas) list |
| Standardabout 1GB a day | US$19.3010GB, 30 days, South East Asia (8 areas) list | US$37.5020GB, 30 days, South East Asia (8 areas) list |
| Heavyabout 2GB a day | US$34.10Endless, 2GB a day, South East Asia (8 areas) list | US$66.20Endless, 2GB a day, South East Asia (8 areas) list |
South East Asia eSIM FAQ
How many countries does the South East Asia eSIM cover?
8 on one plan, switching network on its own as you cross borders, with plans of 1GB or more from US$4.20.
Which countries does the South East Asia eSIM cover?
All 8 on one plan: Cambodia, Indonesia, Laos, Malaysia, Philippines, Thailand, Timor-Leste and Vietnam.
How much is the South East Asia eSIM for a week?
Standard use, about 1GB a day, costs US$19.30 on the 10GB, 30 day plan on the South East Asia (8 areas) list; light use (300MB a day) US$7.70 (3GB, 15 days, South East Asia (8 areas) list) and heavy use (2GB a day) US$34.10 (Endless, 2GB a day, South East Asia (8 areas) list).
How much is the South East Asia eSIM for two weeks?
Standard use, about 1GB a day, costs US$37.50 on the 20GB, 30 day plan on the South East Asia (8 areas) list; light use (300MB a day) US$11.50 (5GB, 30 days, South East Asia (8 areas) list) and heavy use (2GB a day) US$66.20 (Endless, 2GB a day, South East Asia (8 areas) list).
Does the South East Asia eSIM have 5G?
Yes, where the local network has it: 75% of the countries on the South East Asia (8 areas) list. 5G needs a 5G phone and a 5G signal where you are.
What happens in a country that is not on the list?
The eSIM simply has no signal there; there are no surprise charges. Add a single-country eSIM for that stop, or choose a wider plan that includes it.
When do the days start on the South East Asia eSIM?
On first connection in a covered country, not at purchase or install. Install it on wifi before you fly, up to 180 days after buying.
Can I share the South East Asia eSIM data by hotspot?
Yes, on the daily plans, from US$4.40 a day; hotspot use counts toward the same daily allowance.
Can I make calls with the South East Asia eSIM?
No, it is data only, with no local number: WhatsApp and FaceTime calls work over the data, and your own SIM keeps your home number reachable.
Where does the South East Asia eSIM connect to the internet from?
From Singapore, so apps may see you there rather than where you are, which mostly matters to banking and streaming.
Single-country trips?
Visiting just one place? A single-country eSIM is usually cheaper.
Other regions
Travel eSIM guides for South East Asia
Ready for a multi-country trip?
Tell the finder your stops and trip length and it picks the cheapest eSIM that covers them all. Find my plan