Fixed plans give you a total amount of data at full speed for the whole trip.
Small
$6.49
Southeast Asia · 5 countries · 20 days
- 5 GB at full speed
- No daily limit — use it at your own paceFull network speed for everythingMore about speed →
- IP exit: HK
- Hotspot works
Medium
$9.49
Southeast Asia · 5 countries · 20 days
- 10 GB at full speed
- No daily limit — use it at your own paceFull network speed for everythingMore about speed →
- IP exit: HK
- Hotspot works
Best value
Suggested$32.99
Southeast Asia · 5 countries · 20 days
- 50 GB at full speed
- No daily limit — use it at your own paceFull network speed for everythingMore about speed →
- IP exit: HK
- Hotspot works
Why an eSIM
Why use a travel eSIM in Southeast Asia?
No roaming bill to come home to
Your own operator charges for data abroad by the megabyte, and the bill arrives after the trip. A travel eSIM is a price you see in full before you pay, and it cannot run up a total you did not agree to.
Online before you leave the airport
Install it at home on wifi. When you land, the travel line finds a local network and you are online — no shop to find, no paper SIM to swap, no counter to queue at with your passport.
Your own number keeps working
The data runs on the eSIM; your usual SIM stays in the phone for calls and texts, on your own carrier's terms.
Why Flex by Lempart
Stop counting gigabytes.
Pay only for the speed you need.
Unlimited data
Stop counting gigabytes. Keep using data after your daily full-speed allowance.
Your kind of speed
Choose the speed you keep after your daily full-speed data: pay less for slower, more for faster.
Choose your IP
Pick the country your connection exits through, where a destination offers more than one — some banking, streaming and work apps check where you are.
Local, regional or global
5 countries on one eSIM, with no swapping at the border. From 1 to 30 days. Unlimited or a fixed amount of data.
Your language, your currency
The website and the checkout in 18 languages, prices in 19 currencies.
Easy installation
Install it at home on wifi from the QR code we email you. For most plans, the days start only when it first connects at your destination.
FAQ
Questions about Southeast Asia
From $13.99. One eSIM covers all 5 countries on the same plan, paid once, with nothing to top up and no subscription. Each length has its own total price, listed above.
Yes. It is a single eSIM with roaming across every one of the 5 countries built in, so crossing a border changes nothing — no second purchase, no swapping profiles, no new QR code. The phone attaches to whichever local network is strongest, the way a local phone does.
1 GB a day runs at full speed each day; after that the connection keeps working at a slower speed until the next day begins, when full speed returns. You are never cut off and never asked for more money.
When the eSIM first connects to a network in Southeast Asia — not when you buy it and not when you install it. Install it at home on wifi before you fly and you land already online.
For a trip through more than one of them, almost always — one bundle at one price against one eSIM per border. For a single country, that country’s own plan is usually cheaper; every one of them is listed below with its own price, so you can see rather than take our word for it.