Ubigi
Transatel (NTT)
Telecom-grade eSIM from an actual network operator.
Price
$19
Last checked
June 2026
Best for
Japan trips, connection stability
Category
Specialists
About Ubigi
Ubigi is the consumer brand of Transatel, an NTT-owned operator that supplies connectivity to carmakers and laptop manufacturers, and that pedigree shows in connection stability. Coverage spans 200+ destinations with particularly strong performance in Japan (NTT home turf), where it is our default recommendation. A 5 GB / 30-day Europe plan runs around $19, with monthly recurring options for frequent travelers. The app and purchase flow feel more telecom than startup, and prices are mid-pack. You choose Ubigi for the network, not the interface.
“The network-grade option. Ubigi is run by Transatel, an NTT company that actually operates mobile infrastructure. Connections feel carrier-stable, Japan coverage is best-in-class, and it works in cars and laptops too. The app is more utilitarian than the startups.”Editorial team, via eSIMShortlist
Where to get it
$19
Sign up directly with the provider.
We may earn a small commission through links on this site, at no extra cost to you.
Compare Ubigi head-to-head
Questions about Ubigi
More specialist eSIM providers
View allFrequently asked questions
Who is behind Ubigi?
Ubigi is run by Transatel (NTT). That is the name on your invoice, in the terms and in the company register, while the website itself shows only the brand. If you searched for the company name and landed here, you are in the right place.
We may earn a small commission through links on this site, at no extra cost to you. Prices and plans can change at any time; always check current pricing with the provider.