Tokyo eSIM with prepaid travel data
- Tokyo data starting at $4.50/week
- Use your regular phone number
- Steady mobile data all across Tokyo
Use a Tokyo eSIM to stay connected
Dig into tasty food, check out iconic landmarks like the Imperial Palace, Tokyo Skytree, or the Senso-ji Temple, and get a real feel for the traditions that make Tokyo a must-see place to visit.
Captured a great photo and can’t wait to show it to your family and friends? A Tokyo eSIM enables instant sharing, no matter where you are in the city!

How much travel data do I need with my Tokyo eSIM?
When you’re in Tokyo, it’s handy to have reliable mobile data so you can always stay connected, without needing to worry about finding Wi-Fi. Prepaid eSIM data is perfect for maps, driving directions, and more.
Not sure how much data you’ll need? There’s no pressure! You can always start with a basic 1 GB data package and add more if it’s needed.
You can also use our travel data calculator to help you estimate how much data you’ll need for your trip.

Will I pay roaming charges with a prepaid SIM card for Tokyo?
You won’t pay a penny in roaming charges!
Install your Tokyo eSIM while you have a strong internet connection (either at home, or while already travelling), and then activate your prepaid Tokyo data package when you’re ready to use it.
To avoid roaming charges on your primary SIM, please make sure you’ve turned off Data Roaming on your primary SIM to prevent your home carrier from adding roaming charges to your next bill.

FAQs about using a Tokyo eSIM
-
Will eSIM work on my phone or tablet?
Most newer phones, tablets, and computers are already eSIM-compatible, so use our eSIM device checker to make sure you have a device that can accept an eSIM.
-
Why can’t I just use Wi-Fi while traveling?
Free Wi-Fi is great when it’s available, safe, and working well, but some destinations make it just about impossible to get a good connection. Having data as a backup ensures you remain connected regardless of Wi-Fi availability.
-
How reliable is aloSIM data?
We’re proud to provide aloSIM customers with fast eSIM data connections that allow them to talk, text, surf, and stream comfortably. You’ll likely experience a 4G (sometimes 5G) or LTE equivalent network in most locations, depending on what’s available in the area.
-
Is setting up an eSIM complicated?
We have detailed eSIM installation instructions for all compatible devices, so whether you’re looking to add eSIM data to an iPhone or iPad, Google Pixel, Samsung Galaxy, or something else, we’ll be able to walk you through the eSIM set-up process easily.
-
How do I avoid roaming charges?
It can be confusing to know the best roaming settings for your phone while you travel internationally, so we’ve created an easy walk-through guide to show you exactly how your phone’s roaming settings should look.
Travel Tokyo with aloSIM data

AFFORDABLE
Our eSIM data packages are prepaid, so you always know exactly what you’ll spend on data. No contracts, no surprises, and never any roaming charges.

CONVENIENT
You’ll have full access to your regular phone number for calling and texting, and you can add data to your device whenever you need it. No in-store visits required!

FLEXIBLE
Only buy what you need! If you’re not sure how much data you’ll need, start with a 1 GB package. You can always top up your eSIM with more data later.