Works in Tokyo
Tokyo is where most visitors to Japan head first. The plan connects there and in the other main towns on NTT docomo, Rakuten Mobile, KDDI/au and SoftBank.
Japan eSIM
20 plansUnlimited optionsInstant delivery5G where available
1 day
7 days
15 days
30 days
No plan of that length. Pick another.
1 day
3 days
7 days
15 days
30 days
No plan of that length. Pick another.
Lite gives you 1 GB a day at full speed and Heavy gives you 3 GB. After that the plan keeps working at a reduced speed until the next day.
Plan details
What the plan you picked above includes.
- Networks in Japan
- NTT docomo, Rakuten Mobile, KDDI/au and SoftBank
- Technology
- 3G/4G/5G
- Routed via
- Japan
- Tethering
- Supported
- Top up
- Not available
- Calls and texts
- Data only, no phone number
- Fair use
- No daily cap
- Activation
- QR code by email, days start on first connection
QR code by email in secondsKeep your own numberTop up the same eSIMSecure checkout
Why RoamZivo for Japan
Skip the rental counter
No pocket Wi-Fi or SIM counter to find when you land in Japan, and nothing to return before you fly home. The eSIM is installed before you leave.
Share with your laptop
Hotspot is allowed on the plan selected above, so a second device can use the same data in a cafe or a hotel room.
How to get connected
Step by step guideCheck your phone
Your phone must be eSIM compatible and not locked to one carrier.
Install at home
Scan the QR code on WiFi before you fly. Your days do not start yet.
Switch on in Japan
Choose the RoamZivo line for mobile data and turn on data roaming for it.
Stay online
Watch your data in My eSIMs and top up the same eSIM if you need more.
Japan travel data guide
A Japan eSIM from RoamZivo is a prepaid data plan for Japan that you install before you fly. Plans in Japan run on NTT docomo, Rakuten Mobile, KDDI/au and SoftBank, with 5G where the operator offers it. The eSIM is data only, so your own SIM stays in for calls and texts.
There are 20 plans to choose from. Data sizes run from 1 GB to 50 GB, validity from 1 to 30 days, and prices start at $1.99. Unlimited plans are listed too, each with its own fair use line. Hotspot sharing is supported on every plan. Top ups are available on some of the fixed data plans and go onto the same eSIM.
Visiting more than one country? The Japan & South Korea eSIM covers Japan and 1 other country on one plan, from $2.99. The Asia (14 countries) eSIM covers Japan and 13 other countries on one plan, from $2.99. The Asia Pacific eSIM covers Japan and 19 other countries on one plan, from $10.99. The Global eSIM covers Japan and 126 other countries on one plan, from $18.99.
Your days start the first time the eSIM connects in Japan, not when you buy, so you can install it at home days early. For a week of maps, messaging and social apps, most travellers are fine with 3 to 5 GB. Video calls or streaming need more, or an unlimited plan. Travel data in Japan from RoamZivo arrives as a QR code by email, with a copy kept in your account.
Japan FAQ
Does the eSIM work everywhere in Japan?
It connects wherever NTT docomo, Rakuten Mobile, KDDI/au and SoftBank have signal, which is the same network local customers use. The eSIM is data only.
When do my days start?
On the first connection in Japan, not at purchase. The plan selected above (2 GB) runs for 15 days from that moment. You can install the eSIM at home and the clock stays still until you connect.
Do I get a local phone number in Japan?
No. The eSIM is data only. Your own SIM stays in for calls and texts, and WhatsApp keeps working over the eSIM data.
Can I share data with my laptop?
Yes. Hotspot sharing is supported on the plan selected above, so your laptop or tablet can use the eSIM data through your phone.
Is 10 GB enough for two weeks in Japan?
10 GB over two weeks in Japan works out to well under 1 GB a day, which suits maps and messaging but not daily video. The 10 GB plan is valid for 30 days, so a shorter trip loses nothing. If you expect to use more, the unlimited plan for 15 days gives full speed up to 1 GB or 3 GB every day.
Do I get a Japanese phone number with this eSIM?
No, the Japan eSIM is data only and has no phone number, calls or SMS. Your own SIM stays in the phone and keeps your number, so calls and texts carry on there. Any service that insists on a Japanese mobile number cannot be registered with this eSIM.
Should I buy the Japan plan or the Asia Pacific plan?
Buy the Japan plan if Japan is your only stop, since it is built for one country. The Asia Pacific plan makes sense when the same trip includes another country on its list, such as South Korea or Hong Kong. Both allow hotspot on every plan.
When do the days on a Japan eSIM start counting?
The days start when the eSIM first connects to a network in Japan, not when you buy or install it. You can scan the QR code at home a week ahead and lose nothing. A 7 day plan that first connects on a Monday morning in Tokyo is counted from that moment.
Do I need WiFi to install the eSIM?
Yes, install the Japan eSIM over WiFi, ideally at home before you fly. The phone needs an internet connection to download the eSIM, and WiFi is the simplest one to use. If you forget, any WiFi you can join after landing does the same job.
Can I share data from my phone as a hotspot in Japan?
Yes, every RoamZivo plan for Japan allows hotspot, so a laptop or a second phone can use your connection. Shared data comes out of the same allowance. On an unlimited plan that means a laptop can use up the daily full speed amount early, and the rest of the day runs at up to 1 Mbps.
What happens if I run out of data in Japan?
On a fixed Japan plan, more data comes from a top up where the plan supports it, or from buying a second plan. Top up is offered on some plans, not all. Unlimited plans do not run out. They slow to up to 1 Mbps after the daily amount and are back at full speed the next day.
How do I top up if I run low?
The plan selected above does not offer top ups. Buy a new plan from this page instead and install it as a second eSIM.
