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Singapore, Malaysia, Vietnam, Thailand & Indonesia eSIM
A Singapore, Malaysia, Vietnam, Thailand & Indonesia eSIM costs £4.99 for 1 day across 5 countries with 5G. Delivered by email in seconds.
Singapore, Malaysia, Vietnam, Thailand and Indonesia make one trip you can plan around a single eSIM. Land in Changi, cross to Kuala Lumpur, then fly on to Bangkok, Hanoi or Bali without swapping SIM cards. Install once, then travel on.
- 5G and 4G
- 5 countries on one eSIM
- Top up anytime
- Instant email delivery
Your Singapore, Malaysia, Vietnam, Thailand & Indonesia eSIM in two questions
Which Singapore, Malaysia, Vietnam, Thailand & Indonesia eSIM plan do I need?
Five countries make one loop, so choose your plan by how long you'll be on the road.
- A long weekend, Changi to Kuala Lumpur: Fly from Changi (SIN) to Kuala Lumpur International (KUL) and check maps and messages on the way. For light use, about 0.8 GB in all, 1 GB a day for 3 days is the plan.
- One week, Bangkok to Hanoi: Fly from Suvarnabhumi (BKK) to Noi Bai, Hanoi (HAN). For standard use, about 4.9 GB in all, pick 1 GB a day for 7 days.
- Two weeks, Singapore to Bali: Start at Changi (SIN) and finish at Ngurah Rai (DPS). For standard use, about 9.8 GB in all, pick 1 GB a day for 15 days.
- A month, heavy use, the full loop: Start at Changi (SIN), fly through Kuala Lumpur, Bangkok and Hanoi, and finish at Ngurah Rai (DPS). For heavy use, about 54 GB in all, pick 3 GB a day for 30 days.
All 21 Singapore, Malaysia, Vietnam, Thailand & Indonesia eSIM plans
Prices include any taxes. Price per GB shown so you can compare at a glance.
| Per day | 1 day | 3 days | 5 days | 7 days | 10 days | 15 days | 30 days |
|---|---|---|---|---|---|---|---|
| 1 GB a day | £4.99 / €4.99 / $5.99 | £10.99 / €12.99 / $13.99 | £13.99 / €16.99 / $18.49 | £13.99 / €16.99 / $18.49 | £13.99 / €16.99 / $18.49 | £20.99 / €24.99 / $27.49 | £41.49 / €49.49 / $53.99 |
| 3 GB a day | £8.99 / €10.99 / $11.99 | £25.99 / €30.99 / $33.99 | £34.99 / €41.99 / $45.49 | £34.99 / €41.99 / $45.49 | £34.99 / €41.99 / $45.49 | £52.49 / €62.99 / $67.99 | £104.49 / €125.49 / $135.99 |
| 10 GB a day | £20.99 / €24.99 / $26.99 | £60.99 / €72.99 / $78.99 | £81.99 / €98.49 / $106.49 | £81.99 / €98.49 / $106.49 | £81.99 / €98.49 / $106.49 | £122.99 / €147.49 / $159.99 | £245.49 / €293.99 / $318.99 |
5 countries on one eSIM
Cross borders without changing anything: your eSIM switches to the local network in each country by itself.
| Country | Networks | Speed |
|---|---|---|
 Indonesia | Telkomsel | 5G |
 Malaysia | CelcomDigi, Maxis, U Mobile | 5G |
 Singapore | M1, SingTel | 5G |
 Thailand | DTAC, TrueMove H | 5G |
 Vietnam | MobiFone, Vietnamobile, Viettel Mobile | 5G |
Good to know
- Data only: your own number keeps working for calls and texts
- Hotspot works where your phone and the network allow it
- Plans start when you first connect; install within 180 days
- Your data routes through Hong Kong, so some sites may show that country
- Top up the same eSIM any time, no new QR code
Where does the Singapore, Malaysia, Vietnam, Thailand & Indonesia eSIM work?
Five countries on one eSIM, from Changi in Singapore to Bali in Indonesia. All five countries have 5G, and your phone switches network by itself at each border. These are the networks you'll join where you're most likely to go:
- Thailand: DTAC and TrueMove H, plus LINE for messages with locals, hotels and tour operators.
- Indonesia: Telkomsel, with WhatsApp for messages. Java, Bali and major cities are well covered, but signal is patchy on remote islands.
- Vietnam: MobiFone, Vietnamobile and Viettel Mobile, with Zalo for chatting with locals.
- Singapore: M1 and SingTel, with signal strong across the whole island, including on the MRT.
Your data reaches the internet through Hong Kong, which is a normal setup for travel eSIMs, and you can read more about your IP address abroad.
How much data do you need in Singapore, Malaysia, Vietnam, Thailand & Indonesia?
Light: maps, messages, email (about 0.25 GB a day). Standard: plus social, music, some video (about 0.7 GB a day). Heavy: plus streaming, video calls, hotspot (about 1.8 GB a day).
3 days
- Light · about 800 MB1 GB a day · 3 days · £10.99 / €12.99 / $13.99
- Standard · about 2 GB1 GB a day · 3 days · £10.99 / €12.99 / $13.99
- Heavy · about 5 GB1 GB a day · 7 days · £13.99 / €16.99 / $18.49
7 days
- Light · about 2 GB1 GB a day · 7 days · £13.99 / €16.99 / $18.49
- Standard · about 5 GB1 GB a day · 7 days · £13.99 / €16.99 / $18.49
- Heavy · about 13 GB1 GB a day · 15 days · £20.99 / €24.99 / $27.49
14 days
- Light · about 4 GB1 GB a day · 15 days · £20.99 / €24.99 / $27.49
- Standard · about 10 GB1 GB a day · 15 days · £20.99 / €24.99 / $27.49
- Heavy · about 25 GB1 GB a day · 30 days · £41.49 / €49.49 / $53.99
30 days
- Light · about 8 GB1 GB a day · 30 days · £41.49 / €49.49 / $53.99
- Standard · about 21 GB1 GB a day · 30 days · £41.49 / €49.49 / $53.99
- Heavy · about 54 GB3 GB a day · 30 days · £104.49 / €125.49 / $135.99
How to set up your Singapore, Malaysia, Vietnam, Thailand & Indonesia eSIM
Install at home
On Wi-Fi, tap Install on iPhone (iOS 17.4+), scan the QR code, or type the two codes from your email.
Switch on when you land
Turn on your eSIM line, choose it for mobile data and switch Data Roaming on for that line.
You're online
Your phone joins CelcomDigi and your plan starts. Check data left on your eSIM page.
Using one eSIM across Singapore, Malaysia, Vietnam, Thailand & Indonesia: tips
Five countries, five sets of apps. Here's how to keep one eSIM working as you move between them.
- Install at home, then roam: Install your eSIM before you fly, then turn on data roaming for the eSIM line. Keep it on at every border.
- Ride apps by country: Grab runs in all five. Gojek works in Indonesia and Singapore, inDrive in Indonesia and Malaysia, Bolt in Thailand, Be and Xanh SM in Vietnam, and ComfortDelGro in Singapore.
- Messages by country: WhatsApp is the go-to in Singapore, Malaysia and Indonesia. In Thailand, LINE is the main way to message locals, hotels and tour operators. In Vietnam, use Zalo or Messenger; Telegram is blocked there.
- Keep your home number: Keep your home number for calls and texts, and set up WhatsApp to use with your eSIM data.
- Top up on the move: Every plan can be topped up, so if you run low partway through, add more without buying a new eSIM.
Singapore, Malaysia, Vietnam, Thailand & Indonesia eSIM questions
How much is an eSIM for Singapore, Malaysia, Vietnam, Thailand & Indonesia?
Singapore, Malaysia, Vietnam, Thailand & Indonesia eSIMs start at £4.99 for 1 GB a day over 1 day. A 1 GB a day plan for 1 day costs £4.99. Prices include any taxes and show in pounds, euros or dollars.
Which countries does the Singapore, Malaysia, Vietnam, Thailand & Indonesia eSIM cover?
One eSIM works in all 5 countries: Indonesia, Malaysia, Singapore, Thailand and Vietnam. The full list with the network in each country is on this page.
When does my Singapore, Malaysia, Vietnam, Thailand & Indonesia eSIM start?
Most plans start the moment your eSIM first connects to a network in Singapore, Malaysia, Vietnam, Thailand & Indonesia, so you can buy and install it at home before you fly. Install it within 180 days of buying.
Can I top up my Singapore, Malaysia, Vietnam, Thailand & Indonesia eSIM?
Yes. Most Singapore, Malaysia, Vietnam, Thailand & Indonesia plans can be topped up from your eSIM page in two taps, with no new QR code. The plan table on this page shows which ones.
Does it come with a phone number?
Every eSIMology plan is data only. Keep your own SIM switched on for calls and texts, and use WhatsApp, FaceTime or any calling app over your eSIM's data.
What if my plans change?
Cancel an eSIM you haven't installed within 30 days for a full refund to your card, in two taps from your eSIM page.
Does the Singapore, Malaysia, Vietnam, Thailand & Indonesia eSIM work in Bali?
Yes. Bali is in Indonesia, one of the five countries on this eSIM. Ngurah Rai (DPS) is one of Indonesia's airports, and Grab and Gojek are the ride apps to have. WhatsApp is the app to message with.
Is there 5G on the Singapore, Malaysia, Vietnam, Thailand & Indonesia eSIM?
Yes. All five countries on this eSIM have 5G, but your phone must also support 5G to get it. Our compatible phones page is the place to check before you travel.
Can I use one eSIM for Thailand and Vietnam?
Yes. Thailand and Vietnam are both part of this eSIM, so one install covers both. In Thailand, LINE is the main way to message locals, hotels and tour operators, and in Vietnam, Zalo and Messenger are the apps to use.
Can I use Telegram in Vietnam on the Singapore, Malaysia, Vietnam, Thailand & Indonesia eSIM?
No. Telegram is blocked in Vietnam, so use Zalo or Messenger there instead for messages. Viettel Mobile, MobiFone and Vietnamobile are the networks it uses in Vietnam.
Can I use one eSIM for Singapore and Malaysia only?
Yes. You can use it for a Singapore and Malaysia trip alone, and it covers both of them. Changi (SIN) and Kuala Lumpur International (KUL) are two of the airports, and Grab is a ride app in both.
Does the Singapore, Malaysia, Vietnam, Thailand & Indonesia eSIM work in Ha Long Bay?
Yes. Ha Long Bay is in Vietnam, so it's part of this eSIM. Noi Bai, Hanoi (HAN) is an airport you can fly into, and Grab, Be and Xanh SM are the ride apps to use.
Ready for Singapore, Malaysia, Vietnam, Thailand & Indonesia?
Buy now, install today, and your plan waits until you land. Full refund if not installed.