Surf with 4G/5G in Asia. Delivered instantly by email after purchase.
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Download the app and manage everything on the go!
Keep an eye on your data, top up anytime and install your eSIM with a single tap. Free for iOS & Android.
eSIM for Asia: activation in 3 steps
Activating your eSIM for Asia takes just a few minutes and requires no SIM card swap at all. Right after purchase you receive an email with your personal eSIM details in the form of a QR code and an activation code or link, plus instructions. It's best to install the eSIM comfortably from home; you only activate mobile data after your arrival in Asia.
How to activate the eSIM on iPhone (iOS)
- Open Settings → Cellular → Add eSIM.
- Select Use QR Code and scan the code from our email. Alternatively you can enter the activation details manually.
- Give the line a meaningful name, e.g. "BuddySIM Asia", and finish the setup.
- in Asia, activate BuddySIM under Cellular → Data Roaming and select it as the line for mobile data.
How to activate the eSIM on Android (Samsung, Pixel & Co.)
- Open Settings → Connections → SIM manager (on Google Pixel: Network & internet → SIMs).
- Tap Add eSIM and scan the QR code from our email.
- Confirm the download of the eSIM profile and wait until setup is complete.
- After your arrival in Asia, enable data roaming and select BuddySIM for mobile data.
The exact menu labels may differ slightly depending on your smartphone model and operating system version. You'll find a detailed step-by-step guide by device in our eSIM activation guide.
No second device to scan?
Only have your smartphone and can't scan? No problem! We also send you a one-click installation link and activation details for manual activation of your eSIM.
Why a BuddySIM eSIM for Asia?
Here's how BuddySIM for Asia compares to other eSIM providers and the local SIM card on site: transparent, fast and with no hidden costs.
 |
Other eSIM providers | Local SIM card | |
|---|---|---|---|
| Buy online instantly | Available instantly | Usually possible | Only on site |
| Activation only on arrival | Activation in your destination – avoids using data before arrival | Depends on provider | Manual setup |
| Fixed GB plans | Full cost control | Depends on provider | Often confusing |
| Day Pass | Often unlimited with throttling | Depends on provider | |
| Share hotspot | Often limited | Depends on plan | |
| Multi-network coverage* | Multiple networks | Not always transparent | Usually one provider |
| No Net, No Pay guarantee | |||
| Personal support | Personal | Often bot only | On site/hotline |
| Roaming costs | €0,00Prepaid, no hidden costs | Mostly prepaid | Depends on plan |
| Flexible top-ups | Flexible anytime | Depends on provider | Often complicated |
| Stress factor | Very low | Medium | High |
*Multi-network coverage: where needed, several local networks are available so you get the best possible coverage. Your device automatically connects to the strongest available signal.
eSIM prices for Asia
Compare all eSIM plans for Asia at a glance, including duration, total price and price per GB. This way you transparently find the right data plan for your trip in Asia, with no hidden costs and no contract.
| Plan | Validity | Price | Per GB |
|---|---|---|---|
| 1 GB | 7 days | €8,99 | €8,99/GB |
| 3 GB | 30 days | €24,99 | €8,33/GB |
| 5 GB | 30 days | €29,99 | €5,99/GB |
| 10 GB POPULAR | 30 days | €49,99 | €4,99/GB |
| 20 GB | 30 days | €79,99 | €3,99/GB |
| 50 GB | 30 days | €159,99 | €3,19/GB |
About the eSIM for Asia
eSIM Asia: Flexible mobile data bookings for 7–30 days
Our eSIM Asia Data Packages
Choose your fixed data package for Asia by GB and duration.
With the BuddySIM eSIM for Asia you're online instantly in Asia: fast mobile internet right after arrival, with no physical SIM card and no expensive roaming fees. You buy your eSIM conveniently online, receive the QR code instantly by email and activate it in just a few steps on your smartphone.
Mobile data in Asia: no roaming
Instead of hunting for a local SIM card at the airport or paying your home provider's roaming fees, with BuddySIM you simply keep using your familiar smartphone. Your existing number stays active on the physical SIM for calls and SMS, while the eSIM handles only your mobile data in Asia. So you stay connected at all times for maps, translations, bookings and social media.
Network coverage & speed in Asia
The eSIM Asia connects automatically to Multi and offers you speeds of 4G/LTE & 5G, where available. You surf reliably in the cities and at the most important destinations in Asia, ideal for streaming, navigation and video calls. Via the personal hotspot you can also share your connection with a laptop or tablet.
Who is the eSIM for Asia worth it for?
Whether holiday, backpacking, workation or business trip: the BuddySIM eSIM for Asia is the hassle-free solution for anyone who wants to stay online in Asia. Simply pick the right data plan for your trip length and get going right away, with no contract and no hidden costs.
Activate eSIM Asia: in just a few minutes
After purchase you receive your personal QR code directly by email. Install the eSIM comfortably from home, activate the mobile data in Asia after arrival, and off you go. You'll find a detailed step-by-step guide further up on this page.
Technical specifications: eSIM for Asia
This is how much data you need in Asia
All figures are estimates. Your actual usage depends on your smartphone, your app settings and your personal usage.
The story behind BuddySIM
BuddySIM was born during my parental leave, out of real frustration. Expensive roaming fees, stressful queues at the airport with small children and a complicated hunt for SIM cards on site? It doesn't have to be like that.
A holiday is the best time of the year and should be worry-free! That's why I founded BuddySIM, so you can focus on what matters most on holiday: relaxing and spending time with your loved ones.
Rafael Gomez
Founder of BuddySIM
Money-back guarantee for Asia
100% money-back guarantee
Your satisfaction is our priority. You'll of course get your money back if:
- the eSIM has not yet been activated/used (0.00 MB)
- your device is not eSIM compatible
- your trip was cancelled
Refund within 14 days of purchase. If you had other issues and our support couldn't help you, feel free to write to us anytime as well.
No Net, No Pay guarantee
In the event of a proven, continuous network outage of more than 90 minutes in Asia, we refund you 100% of the purchase price of the affected eSIM.
Learn more →Frequently asked questions about the eSIM for Asia
Any questions about your eSIM for Asia?
Our support team is available around the clock for you, before, during and after your trip. Just write to us, we'll help you quickly and easily.
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Get online carefree and digitally across Asia with the eSIM from BuddySim
The key facts at a glance
- Flexible on the go: With an eSIM for Asia you browse easily across many countries – without swapping SIM cards or paying roaming charges.
- Ready straight away: Scan the QR code once and you're online instantly – full cost control, no risk of subscription traps.
- Convenience & support: Providers like BuddySIM offer personal onboarding, emergency service and various service plans – ideal for easy trip planning.
What is an eSIM and why is it ideal for travelling through Asia?
Electronic SIM cards (eSIMs) are the smart solution for hassle-free internet connections on the go. Instead of buying a conventional SIM card, the eSIM is loaded digitally onto your device.
For travelling through Asia, that means: A direct connection after landing, no searching for shops and no worrying about different national regulations.
Whether in Bangkok, Tokyo or Bali – your smartphone connects to the best available network in each country, often even without a roaming surcharge.
This is particularly handy for:
- Backpackers and frequent travellers on a round-trip itinerary
- Digital nomads
- Business trips with meetings in several countries
Cost control is a real plus: You only book what you need, and you can top up at any time.
Why is an eSIM for Asia especially attractive?
Asia is diverse and anything but uniform when it comes to mobile networks. Instead of organising new cards for every country, a single eSIM for Asia is all you need – saving time, stress and money.
- Digital activation: Never again language barriers or a SIM swap at the airport.
- Prepaid, flexible & transparent: No hidden costs, simply top up.
- Environmentally friendly: No SIM waste – a small contribution with a big effect.
- Unlimited browsing: Many providers offer options with high data volumes that are suitable for streaming, remote work and navigation.
The most important providers compared
Choosing the best eSIM for Asia comes down to a few key criteria. Below you'll find an overview of the big names on the market and their respective strengths:
|
Provider |
Strengths |
Tariffs & data plans |
Special features |
|
Holafly |
Unlimited data, 24/7 support |
Unlimited, usually 30 days |
Easy to use, ideal for heavy users |
|
Airalo |
Best value winner, wide country coverage |
Up to 18 countries, flexible plans |
App control, affordable prepaid options |
|
Ubigi |
A good mix of volume & duration |
e.g. 10 GB for 30 days |
Smartstart: activation only on arrival |
|
BuddySIM |
Personal support & network-outage guarantee |
1–20 GB for 7–30 days |
Easy top-ups, hotspot option |
Which factors are decisive when buying?
- Value for money: For short stays a single plan is often enough – for several stops a multi-country tariff pays off.
- Coverage: Check whether all your destinations are included.
- User convenience: Is there an app, and is support easy to reach?
- Extras: Hotspot function, VPN for China, parallel use of your physical SIM.
Services & network coverage for several Asian countries
With an eSIM for Asia you use a single tariff for countries like Thailand, Japan, South Korea, Malaysia, Singapore and many more. After crossing the border, your phone can automatically connect to one of the local network operators supported in the plan.
The providers cooperate with local network operators, such as AIS (Thailand), SK Telecom (South Korea) or Singtel (Singapore) – so you can often access 4G/5G networks and use stable connections as well as additional data plans.
Larger data plans are often offered for 30 days (around 10 GB for a month), so travellers can flexibly use mobile internet during their stay in different countries and share a hotspot with their travel group.
Who benefits from unlimited, and when is a prepaid data plan enough?
- Unlimited: Ideal for anyone who works, streams or shares hotspots a lot. Holafly and Airalo offer such plans, though with a fair-use rule (speed is throttled once certain limits are exceeded).
- Prepaid data plan: Perfect for classic holiday trips, weekend getaways or conscious data use – often cheaper and completely transparent.
- Rechargeable eSIM: For flexible top-ups if you stay longer or need more data. This works almost everywhere, often even before departure.
Step by step: how to install your eSIM for Asia
Many travellers don't realise: activating an eSIM takes only a few minutes. With this checklist you're ready straight away:
Here's how to do it:
- Check your device: does it support eSIM? (e.g. iPhone XS, Samsung S20 or newer, Google Pixel from Gen 3)
- Order the eSIM for Asia online
- Receive the QR code by email
- Scan it on your phone under „Settings – Mobile data – Add eSIM“
- Done – from the moment you first log into the network in Asia, you're online!
- If you run into problems: contact the provider (often 24/7 support, e.g. at BuddySIM)
Calls, hotspot, VPN & other benefits
Although most eSIMs for Asia are pure data plans, there are easy solutions for calling: messenger apps like WhatsApp, FaceTime, Skype or Google Voice work smoothly with the fast connection.
A special feature is the hotspot option – ideal for shared browsing, navigating and working across several devices. Some plans even include a built-in VPN for China, so you can freely access social media even in countries with restricted internet³.
Wherever the journey takes you: find your perfect eSIM buddy
FAQ
How does an eSIM for Asia differ from a single-country eSIM?
An Asia eSIM covers several countries at once and is therefore perfect for round trips, backpacking tours or business trips with multiple stops. A single-country eSIM, by contrast, only works in one individual country. Anyone combining Thailand, Japan and Vietnam in particular saves time, effort and often money with the Asia eSIM – you don't have to constantly activate or buy new cards.
How does activation work?
Activation is child's play: after buying online you receive a QR code, which you simply scan with your smartphone. The eSIM is then installed automatically and usually only activates once you log in for the first time in the first Asian country. That way your data plan stays untouched until you actually use it.
What happens when the data volume is used up?
Once your data volume is used up, you can top it up directly online or via an app – often even without an active Wi-Fi connection. Many providers send you a reminder in advance as soon as you approach the limit. With so-called unlimited plans a fair-use policy often applies, meaning the speed is reduced after a certain amount of data, but the internet remains available.
Can I make calls with the eSIM?
Most Asia eSIMs are pure data plans. Traditional calls and SMS don't work with them – but you can easily make calls and send messages via messenger apps like WhatsApp, Telegram, FaceTime, Skype or Google Voice. Thanks to stable 4G/5G connections, the voice quality is usually very good.
How long is the eSIM valid?
The validity period depends on the plan you choose: 7, 15, 30 or 90 days are typical, depending on the provider and tariff. After expiry you can either book a new plan or, with many providers, simply extend online without having to install a new eSIM. That way you stay flexible and connected throughout even longer trips across Asia.