Ubigi offers eSIM services for travelers, digital nomads and remote-working professionals, providing high-end global cellular connectivity in over 190+ destinations with a large range of affordable prepaid data plans.
Ubigi offers eSIM services for travelers, digital nomads and remote-working professionals, providing high-end global cellular connectivity in over 190+ destinations with a large range of affordable prepaid data plans.
This video presents real-world tests of the Ubigi travel eSIM at key locations in Japan, including major airports and Kyoto. It covers mobile data speeds, network latency, the local operator it connects to, and IP address details, giving you a clear picture of how Ubigi performs in actual usage scenarios.
I tested Ubigi (5G) and TravelKon (Docomo IIJ) (LTE only).
Both have Japan IP address.
But TravelKon is faster ping (45ms) instead of Ubigi (120ms) even on 5G.
TravelKon (Docomo IIJ) is recommended.
Was very happy with service. 5G phone connected at 5G. One of the few options in Japan that will do that. Most roaming services won't and a lot of other prepaid providers won't.
Service was 4G rather than 5G but speeds were perfectly fine, even for real-time navigation. The few low numbers recorded in speed tests were almost all at Narita Airport.
10 GB each turned out to be plenty for 9 days in Tokyo. We did connect our phones to the hotel's WiFi but probably didn't need to.
Works great! Good coverage (docomo network it seems), Japanese IP, and good ping times to Europe. Used with an iPhone XS on LTE. Attached Speedtest is from a train
Very poor experience. My data would be spotty at best, even with full bars. Certain websites would not load, sometimes Facebook and Instagram would not load. My email would only sometimes work. WhatsApp would seldomly send.
Good & solid experience! Balance, refill & plans via the website! Good 4G data speeds in japan (15-20mbps)!
Frequently Asked Questions
How many data plans does Ubigi offer for Japan?
Ubigi currently offers 16 single-country data plans specifically for Japan, alongside 20 plans that provide coverage across multiple countries, including Japan. These plans vary, with options for both fixed data amounts and those with daily data caps. Prices range from approximately $3.00 to $280.00, and data allowances span from 500MB to 60GB. Plan validity periods range from 1 to 365 days.
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![Ubigi eSIM in Japan [Hands-on Network Performance & Review]](https://i.ytimg.com/vi/LcQiIKe4qlU/sddefault.jpg)
