Stay connected 24/7 hassle-free in Japan with an eSIM:
You may have heard a lot about SIM cards, but from managing swapping multiple physical cards and potentially disconnecting from your home number – they may not be the best solution for everyone. In this blog, we’ll explain the ins & outs of alternatives to traditional SIM cards including eSIMs & pocket wifi in detail for your next trip to Japan!
1. What Is an eSIM & Why Should You Get One?
An ‘eSIM‘ or embedded SIM is a digital version of the traditional physical SIM card that is embedded directly into a device, eliminating the need for a physical SIM card.. Now standard on many phones, they are particularly popular for traveling as they can be downloaded from anywhere with just an internet connection.
Why should you get one? That’s easy. Because it’s software-based, the physical card is no longer needed to connect to the local network meaning you won’t have to change out your current SIM card or visit a pick-up booth! Instead, you’ll receive a scannable eSIM QR code instantly after booking to download directly to your device.
2. Checklist Before Booking
1) Ensure Your Device is eSIM Compatible
It’s important to note that eSIM compatibility can vary depending on the specific model, region, and carrier. Always double-check with the manufacturer or carrier to ensure eSIM support for your specific device & location.
You can also check your compatibility yourself by using the methods below!
2) Unlock your phone through your cellphone carrier before arriving in Japan.
Some phones purchased through carriers like Verizon or others may be locked to work only with the preset network provider. These devices MUST be unlocked prior to departure to allow connection via a foreign network.
3. eSIM Options
Just like SIM cards, different carriers provide different options, depending on what kind of phone you’re using or how much data you’re planning to use. Below are our best options for travelers based on length of stay in Japan:
1) Unlimited Data eSIM (4~15 days) for Travelers
- Available for both iPhones and Android phones
- Receive the scannable eSIM QR code via email within 15 minutes of booking during business hours
- Options: 4, 7, 10, or 15 days
- Unlimited data: 4G/5G high-speeds with tethering capability to share internet connection with other devices
* This eSIM is NOT supported by iPhones and Samsung devices from mainland China, Hong Kong, Macau, or Taiwan.
>> Book Your Short-term eSIM for Japan Here! <<
2) Daily Data eSIM (3~20 days) for Travelers
- Available for both iPhones and Android phones
- Receive the scannable eSIM QR code via email within 15 minutes of booking during business hours
- Options: 3, 5, 7, 10, 15, or 20 days
- Daily data: Select either 2GB or 3GB of daily high-speed data, after this allowance runs out you can continue to use the device with unlimited (128 Kbps) low-speed data
* This eSIM is NOT supported by iPhones and Samsung devices from mainland China, Hong Kong, Macau, or Taiwan.
>> Book Your Daily Data eSIM for Japan Here! <<
3) Unlimited Data eSIM (15/30 days) for Travelers
- Available for both iPhones and Android phones
- Receive the scannable eSIM QR code via email within 15 minutes of booking during business hours
- Options: 15 or 30 days
- Unlimited data: 5GB, 10GB, & 20GB options of 4G/5G high-speeds with tethering capability to share internet connection with other devices. When this allowance runs out, you can continue to use the device with unlimited data at a lower speed.
* This eSIM is NOT supported by iPhones and Samsung devices from mainland China, Hong Kong, Macau, or Taiwan.
>> Book Your Long-term eSIM for Japan Here! <<
4) Asia Countries Data Only eSIM
- Available for both iPhones and Android phones
- Receive the scannable eSIM QR code instantly after booking.
- Options: Asia 7 Countries (Vietnam, Hong Kong, Macau, Malaysia, Indonesia, Thailand, Singapore), Asia 11 Countries (South Korea, Japan, Singapore, Thailand, Malaysia, Indonesia, Vietnam, Philippines, China, Hong Kong, Macau)
- Data Limits: Asia 7 Countries (Daily 500MB, 1GB, 2GB), Asia 11 Countries (Fixed 5GB, 10GB, 20GB)
- Validity: Asia 7 Countries (1, 5, 7, 10, 15 days), Asia 11 Countries (3, 5, 7, 10, 15, 30 days)
> Book Your Asia Countries Data Only eSIM Here! <<
4. Pocket Wifi
Carry your own private and secure WiFi hotspot and enjoy seamless internet access anytime, anywhere in Japan with WiFiBOX. Conveniently rent and return the device at major airports and locations across Japan, with the fastest pick-up and return speeds via self-service stations – no queues necessary!
- Data: Daily 500MB, Daily 1GB, Unlimited (High-speed 3GB), True Unlimited
- Specs: Connect up to 5 devices, 12hr battery life
- Pick-up Locations: Narita Airport, Haneda Airport, New Chitose Airport, Fukuoka Airport, & more
> Book Your Pocket Wifi Here! <<
Have any more questions?
If you have more questions about eSIMs, let us know in the comments, or feel free to contact us via email at inquiry@trazy.com.
If you enjoyed this post, don’t forget to check out Trazy.com, Korea’s #1 Travel Shop, for more informational posts like this one.









