eSIM South East Asia
The South East Asia eSIM from 4,95€ covers seven countries with 1 to 50 GB, prepaid, no contract and no registration — you are online the moment you land in Bangkok or Denpasar.
Your Selection
Your plan only starts counting when the eSIM first connects at your destination — so you can buy today and travel in three weeks.
Coverage · South East Asia
How does Simbye eSIM work for South East Asia?
Pick your plan and order
Choose the data amount that fits your route. Right after ordering you receive an email with an installation link and a QR code.
Set it up at home on Wi-Fi
Install the eSIM calmly before you fly — one tap on the link or one scan of the QR code is enough. You only switch it on after landing, whether that is Bangkok Suvarnabhumi, Singapore Changi, Kuala Lumpur, Denpasar in Bali, Ho Chi Minh City or Manila.
Switch it on after landing
Set the eSIM as your data line and turn on data roaming for it. It finds the network by itself and there is nothing to set up by hand. Your plan starts running with that first connection.
Check Device Compatibility
Make sure your device supports eSIM before purchasing
Which countries does this eSIM for South East Asia cover?
Seven countries, one plan: a single eSIM covers the whole trip, with nothing to switch along the way.
Network list from our provider, as of August 2026. Which network you get depends on coverage where you are.
eSIM or a local SIM card in South East Asia?
Crossing seven countries, the eSIM is the sane route: the same plan keeps running from Thailand to Vietnam, while local SIMs mean a new card, a new queue and your passport at the counter in each country.
| Feature |  Simbye eSIM |
Local SIM card |
|---|---|---|
| Crossing a border | Do nothing, the same plan keeps running in all seven countries | Find, buy and swap a new SIM in every country, passport in hand |
| Setup | Link or QR code from the email, done before you fly | Queue at the airport, fill in a form, wait |
| Registration requirement | None | Standard for local prepaid SIMs in Thailand, Indonesia or Vietnam, usually with your passport at the counter |
| Phone number | None, data only | A local number is included |
| Multi-country trip | One plan for the whole journey, 7 to 180 days | A separate plan per country, leftover credit is lost when you move on |
| Staying reachable back home | Your normal SIM can stay in the phone — whether calls and texts arrive depends on your operator's roaming | Your SIM comes out, you are offline for people back home |
| Hotspot | Allowed, for laptop and travel partners | Usually possible, but the terms are often only in the local language |
| If something goes wrong | Support by email, a replacement arrives digitally | Back to the shop, language barrier, usually cash only |
For most travelers the eSIM is the simpler choice: set up before departure, no queuing on arrival.
What does an eSIM for South East Asia cost?
from 4,95€
6 plans · 7–180 days
Simbye offers 6 plans for South East Asia from 4,95€ to 57,95€ — prepaid, no contract.
Plans for South East Asia range from 1 GB to 50 GB.
Validity runs from 7 to 180 days and starts with your first connection in South East Asia.
Data plans
- 1 GB 7 days 4,95€ 0,70€ per travel day
- 3 GB 15 days 9,95€ 0,66€ per travel day
- 5 GB 30 days 14,95€ 0,49€ per travel day
- 10 GB 30 days 19,95€ 0,66€ per travel day
- 20 GB 30 days 28,95€ 0,96€ per travel day
- 50 GB 180 days 57,95€ 0,32€ per travel day
Frequently Asked Questions about South East Asia eSIM
Data, calls, real phone numbers, top-ups and setup — everything you need to know before you buy a Simbye eSIM.
The South East Asia eSIM covers Cambodia, Indonesia, Malaysia, the Philippines, Singapore, Thailand and Vietnam — all seven on the same plan and the same data allowance. Laos, Myanmar, Brunei and Timor-Leste are not included.
For a multi-country trip through Asia, it depends on your route. For several countries a regional plan is simpler, because one allowance carries the whole journey and you buy nothing new at a border. If you stay three weeks in Thailand only, or on Bali only, a single-country eSIM suits you better.
Yes, it's available for 30 days. An eSIM for South East Asia is a digital SIM card built into your phone. Validity runs from 7 to 180 days, and 30 days is one of the steps. You choose the data separately, between 1 and 50 GB.
No, nothing changes when you cross a border. After you land or step off the bus, the eSIM looks for a network in the new country by itself. It can take a few minutes, and that is all.
No, it doesn't come with a phone number — it's data-only. Calling and texting over the network are not part of it.
Yes, WhatsApp and other messengers work over the internet, so messages, voice notes and calls work normally. Only SMS confirmation codes will not arrive, because there is no number. Sign in to all your important apps before you travel.
Validity starts counting with your first connection to a network on arrival, not on the day you buy it. So you can set the eSIM up calmly at home.
No, you don't have to register the eSIM with your passport. Several countries in the region require registration for local prepaid SIM cards, but not for this eSIM.
You still need a local SIM card only if you need a number from the country, for example for a local payment app such as PromptPay or QRIS. For maps, bookings, messengers and organising your trip, the eSIM is enough.
For South East Asia, a month of backpacking on maps, ride-hailing, WhatsApp and hostel bookings usually lands between 5 and 10 GB of data. Posting photos and short clips daily doubles it. Streaming on long bus and ferry days, video calls home, or sharing a hotspot with travel partners takes you to the largest sizes. One allowance covers every country in the plan, so plan across the whole trip.
Ready for South East Asia?
Pick a plan, tap the link in your email — you are online from the moment you land.
Choose a planPrepaid, no contract. The plan simply ends on its own.
