- Home
- Destinations
- Asia eSIM
Asia eSIM
A 5 GB Asia eSIM costs £21.99 for 30 days across 20 countries with 5G. Plans start at £5.99 for 1 GB. Delivered by email in seconds.
Hong Kong, Japan, Thailand and Singapore are all in this bundle, so a trip that hops between them needs just one eSIM. Land, catch the next flight and keep your maps and messages working on the same plan.
- 5G and 4G
- 20 countries on one eSIM
- Top up anytime
- Instant email delivery
Your Asia eSIM in two questions
Which Asia eSIM plan fits my route?
From Macau to Seoul, this bundle covers routes where one eSIM does the job at each stop, so you skip the SIM swap.
- Three days in Hong Kong and Macau: light use, such as maps and messages, suits 1 GB for 7 days.
- A week in Japan and South Korea: standard use, with social media and some video, needs 5 GB for 30 days.
- Two weeks across Thailand, Cambodia and Vietnam: heavy use, with streaming and hotspot, needs 50 GB for 180 days.
- A month in Indonesia and Malaysia: standard use suits 20 GB for 30 days, whether you start in Bali or Jakarta.
Unlike the 14-country Asia bundle, this one covers Singapore, while that one adds Bangladesh, Laos and Taiwan.
All 9 Asia eSIM plans
Prices include any taxes. Price per GB shown so you can compare at a glance.
| Data | Valid for | Price | Per GB | Top-up | Buy |
|---|---|---|---|---|---|
| 1 GB · 7 days | £5.99 / €7.99 / $7.99 | £5.99 / €7.99 / $7.99 | Choose | ||
| 1 GB · 30 days | £6.99 / €7.99 / $7.99 | £6.99 / €7.99 / $7.99 | Choose | ||
| 3 GB · 15 days | £14.99 / €17.99 / $18.99 | £5.00 / €6.00 / $6.33 | Choose | ||
| 3 GB · 30 days | £14.99 / €17.99 / $19.99 | £5.00 / €6.00 / $6.66 | Choose | ||
| 5 GB · 30 days | £21.99 / €26.99 / $28.99 | £4.40 / €5.40 / $5.80 | Choose | ||
| 10 GB · 30 days | £36.99 / €44.99 / $47.99 | £3.70 / €4.50 / $4.80 | Choose | ||
| 20 GB · 30 days | £63.99 / €76.99 / $83.99 | £3.20 / €3.85 / $4.20 | Choose | ||
| 20 GB · 90 days | £67.99 / €80.99 / $87.99 | £3.40 / €4.05 / $4.40 | Choose | ||
| 50 GB · 180 days | £141.99 / €170.99 / $184.99 | £2.84 / €3.42 / $3.70 | Choose |
20 countries on one eSIM
Cross borders without changing anything: your eSIM switches to the local network in each country by itself.
| Country | Networks | Speed |
|---|---|---|
 Australia | Optus, Telstra | 5G |
 China | China Unicom | 5G |
 Hong Kong | csl | 4G |
 Indonesia | Telkomsel | 5G |
 Israel | Pelephone | 5G |
 India | AirTel, IDEA, Jio, Vodafone | 4G |
 Japan | KDDI/au | 5G |
 Cambodia | Metfone | 4G |
 South Korea | SKTelecom | 5G |
 Kuwait | STC | 5G |
 Sri Lanka | 3 | 4G |
 Macau | CTM | 5G |
 Malaysia | CelcomDigi, Maxis, U Mobile | 5G |
 New Zealand | Spark | 4G |
 Philippines | Globe | 5G |
 Pakistan | Telenor | 3G |
 Saudi Arabia | Mobily | 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
Which countries and networks does the Asia eSIM cover?
One eSIM, twenty countries, from Japan to Israel. 14 of them have 5G, and your phone switches network by itself at each border, so there's no settings juggling.
Here are the networks you'll meet on a few of the busiest routes:
- Japan: KDDI/au
- Thailand: DTAC and TrueMove H
- Vietnam: MobiFone, Vietnamobile and Viettel Mobile
- Indonesia: Telkomsel
Japan's cities and main rail routes are well covered, though signal can drop in the mountains.
Your data reaches the internet through Hong Kong, which is a normal setup for travel eSIMs. Read how that works.
How much data do you need in Asia?
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 · 7 days · £5.99 / €7.99 / $7.99
- Standard · about 2 GB3 GB · 15 days · £14.99 / €17.99 / $18.99
- Heavy · about 5 GB10 GB · 30 days · £36.99 / €44.99 / $47.99
7 days
- Light · about 2 GB3 GB · 15 days · £14.99 / €17.99 / $18.99
- Standard · about 5 GB5 GB · 30 days · £21.99 / €26.99 / $28.99
- Heavy · about 13 GB20 GB · 30 days · £63.99 / €76.99 / $83.99
14 days
- Light · about 4 GB5 GB · 30 days · £21.99 / €26.99 / $28.99
- Standard · about 10 GB10 GB · 30 days · £36.99 / €44.99 / $47.99
- Heavy · about 25 GB50 GB · 180 days · £141.99 / €170.99 / $184.99
30 days
- Light · about 8 GB10 GB · 30 days · £36.99 / €44.99 / $47.99
- Standard · about 21 GB20 GB · 30 days · £63.99 / €76.99 / $83.99
- Heavy · about 54 GBPick unlimited or top up
How to set up your Asia 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 3 and your plan starts. Check data left on your eSIM page.
Using one eSIM across Asia: tips
Twenty countries on one eSIM, from Australia and New Zealand to Israel and Kuwait. Here's how to make it work at every border.
-
Set up at home: Install your eSIM before you fly, then keep data roaming switched on for the eSIM line at every border. Turn on data roaming shows you where.
-
Apps that matter: In Japan, GO, Uber and DiDi are the ride apps to know, and LINE is the main messaging app. In Thailand, Grab and Bolt cover rides, and LINE is the main way to reach hotels and tour operators. In Vietnam, Telegram is blocked, so message people on Zalo or Messenger. In South Korea, Naver Map and KakaoMap give walking and transit directions where Google Maps can't.
-
Home number: Keep your home number for calls and texts. To keep WhatsApp on it, read keeping WhatsApp and your home number.
-
Top up on the road: Every plan can be topped up, so you can add more data mid-trip.
Asia eSIM questions
How much is an eSIM for Asia?
Asia eSIMs start at £5.99 for 1 GB over 7 days. A 5 GB plan for 30 days costs £21.99. Prices include any taxes and show in pounds, euros or dollars.
Which countries does the Asia eSIM cover?
One eSIM works in all 20 countries: Australia, China, Hong Kong, Indonesia, Israel, India, Japan, Cambodia, South Korea, Kuwait, Sri Lanka and Macau and more. The full list with the network in each country is on this page.
When does my Asia eSIM start?
Most plans start the moment your eSIM first connects to a network in Asia, so you can buy and install it at home before you fly. Install it within 180 days of buying.
Can I top up my Asia eSIM?
Yes. Most Asia 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.
Can I use one Asia eSIM in Japan and South Korea?
Yes, both are on this Asia eSIM. In Japan it works on KDDI/au, and in South Korea on SKTelecom. For getting around South Korea, Naver Map and KakaoMap give walking and transit directions where Google Maps can't.
Does the Asia eSIM work in Vietnam?
Yes. In Vietnam it works on MobiFone, Vietnamobile and Viettel Mobile. Telegram is blocked there, so message people on Zalo or Messenger instead, and Grab, Be and Xanh SM are the ride apps to try.
Is Taiwan included in the Asia eSIM?
No, Taiwan isn't on this Asia eSIM. It's covered by the Asia (12 countries), Asia (14 countries) and Asia (19 countries) bundles, so check the country list on the one you pick before you buy.
Is there 5G on the Asia eSIM?
Yes, on 14 of the 20 countries this Asia eSIM covers. Which country you're in on the day decides whether 5G is on offer, so keep an eye on your phone's network icon when you arrive.
Does the Asia eSIM work in Indonesia and Bali?
Yes. Indonesia is on this Asia eSIM and connects to Telkomsel. For getting around Bali, Grab, Gojek and inDrive are the ride apps to try, and WhatsApp is the messaging app.
Does the Asia eSIM work in Thailand?
Yes. Thailand is on this Asia eSIM, connecting to DTAC and TrueMove H. Grab and Bolt are the ride apps, and LINE is the main way to message locals, hotels and tour operators.
Ready for Asia?
Buy now, install today, and your plan waits until you land. Full refund if not installed.