Asia
Asia eSIM — Data without the roaming shock
About Asia eSIM
Whether you are hopping between Japan, South Korea, Thailand, Singapore, or anywhere else, the ZemSim Asia Regional eSIM keeps you online across 24 countries. Great for multi-city itineraries — grab one eSIM and enjoy reliable connectivity for your whole trip.
Available Packages
Choose the plan that suits your trip
1GB / 7 Days
3GB / 15 Days
5GB / 30 Days
Why ZemSim?
Frequently Asked Questions
Feel free to install it any time you like — just double-check you have a decent internet connection while doing so. You can set it up ahead of time even before entering the coverage zone. Once you land, switch to the eSIM profile and your plan fires up as soon as it finds a supported network.
Inside the coverage area, head to your phone settings — look for Cellular or Mobile Data — and pick the ZemSim eSIM line. Make sure Data Roaming is switched on. That is all. Your package kicks in the moment it hooks onto a local partner network.
Absolutely. If your data is running low, grab a top-up from your account and it lands on your existing eSIM — no need to purchase a brand new one. You can check your usage any time through the same portal.
Most newer phones handle eSIM without a hitch. Head over to our device compatibility page to see if your model is supported. Generally, iPhone XS and later, along with the latest Android handsets and plenty of tablets, work fine.