Instant data. No SIM swap.
Japan Travel eSIM
Skip the airport SIM queues and pocket wifi deposits. A RoamMore Japan eSIM installs from a QR code before you fly and connects the moment you land, on Japan's four major networks, all on 5G. Pick a fixed data plan or an unlimited daily plan that refills every day.
5G Networks: NTT docomo, Rakuten Mobile, KDDI/au, SoftBank
A Japan travel eSIM gives your phone mobile data in Japan with no physical SIM. RoamMore plans start at $3 USD, run on NTT docomo, Rakuten Mobile, KDDI/au, SoftBank, and install from a QR code before you land.
- Cheapest plan$3 USD
- Data range100MB to 50GB
- NetworksNTT docomo, Rakuten Mobile, KDDI/au, SoftBank
- SetupQR code, no SIM swap
- Prices updated13 Aug 2026
Japan eSIM data plans
One block of data for a set number of days. Prices in USD, updated 13 Aug 2026.
| Data | Valid for | Price | Buy |
|---|---|---|---|
| 100MB | 7 days | $3 USD | Buy |
| 500MB | 7 days | $3 USD | Buy |
| 1GB | 7 days | $4 USD | Buy |
| 3GB | 15 days | $5 USD | Buy |
| 3GB | 30 days | $6 USD | Buy |
| 5GB | 30 days | $7 USD | Buy |
| 10GB | 30 days | $11 USD | Buy |
| 20GB | 30 days | $17 USD | Buy |
| 50GB | 30 days | $33 USD | Buy |
| 50GB | 180 days | $53 USD | Buy |
Buy sends you to our shop's secure Stripe checkout. Your eSIM QR arrives by email in minutes.
Unlimited daily plans
A fresh block of full-speed data every day, then unlimited data at reduced speed for the rest of the day. Best for heavy users and longer stays.
| Full speed / day | Billing | Price / day | Buy |
|---|---|---|---|
| 500MB | per day | $3 USD | Get it |
| 1GB | per day | $4 USD | Get it |
| 2GB | per day | $5 USD | Get it |
| 3GB | per day | $6 USD | Get it |
| 10GB | per day | $11 USD | Get it |
How much data will you need in Japan?
Free wifi is common in hotels, stations and convenience stores, but patchy once you are out and about.
Maps, messaging, social and the odd photo upload. About 3 to 5GB covers a week.
Navigation, social, music streaming and video calls through the day. Around 1 to 2GB a day.
Video streaming, a laptop hotspot, or sharing with travel companions. An unlimited daily plan keeps you going.
Japan eSIM FAQ
Does an eSIM work in Japan?
Yes. If your phone is eSIM-capable and carrier-unlocked, such as an iPhone XS or newer, or a recent Pixel, Samsung or other Android flagship, Japan's networks fully support eSIM data roaming. You install it from a QR code and nothing is posted to you.
How much data do I need for a week in Japan?
For maps, messaging, social and the odd photo upload, 3 to 5GB comfortably covers a week. If you stream video, video-call or share a hotspot, step up to a larger plan or an unlimited daily plan that refills every day.
Which networks does the Japan eSIM use?
It connects to NTT docomo, Rakuten Mobile, KDDI/au and SoftBank, so you get the strongest signal wherever you are.
Is an eSIM cheaper than a local SIM or pocket wifi in Japan?
Usually, yes. There is no counter to find, no deposit, no device to collect or return, and nothing extra to carry or charge. You also keep your own phone number reachable on your home SIM.
When should I install my Japan eSIM?
Install it at home on wifi before you fly. It stays dormant until it first connects to a network in Japan after you land, so your plan's validity only starts when you arrive.
Does the Japan eSIM work on the bullet train and in rural areas?
Yes. It roams across all four national carriers, so you stay connected on the shinkansen and through most of rural Japan, dropping to 4G where 5G has not reached yet.
Heading somewhere else?
One eSIM can cover a whole region, handy for multi-country trips.
Ready to land online in Japan?
Pick your data, install before you fly, connect the second you arrive.
Find my Japan plan