U-mobile

U-mobile

Official Site

U-mobile provides Prepaid SIM Card for visitors from outside of Japan

U-mobile is run by U-Next, a video streaming company and one of major MVNOs in Japan. They use NTT DoCoMo's 3G and LTE networks.
Their plans are relatively easy to understand than the other services as the only differences between 3 plans they offered is service period:7 days, 15 days, 30 days. Plus, there is no need to activation, which is usually needed before connecting to the internet.
Available to purchase at U-NEXT stores located at major airports and U-NEXT vending machines at Narita airport.

Official Site

U-mobile Prepaid SIM Card Plans

DataSpeedPreiodPriceDate/DayPrice/DayDescription
*220MB/per day225 Mbps7 Days¥1944220MB¥278220MB/day.
Speed goes down to 200kbps once it reaches 220MB/day until 11:59PM that day.
The limination will be lifted the following day.
*220MB/per day225 Mbps15 Days¥3024220MB¥202220MB/day.
Speed goes down to 200kbps once it reaches 220MB/day until 11:59PM that day.
The limination will be lifted the following day.

For a more information about U-mobile - Prepaid SIM Card Plans
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We have cooperated in making this information with LightPocket, a Japanese company offering pocket WiFi router and data SIM card. Figures are calculated based on data published on U-mobile official website.
the quality of data communication vary depending on each service.
Even with a large capacity, it is not necessarily fast on communication speed. If you notice wrong or old information, it would be grateful that you notify us.
After checking the information, we revise it if needed.