Ubigi review

Ubigi is the consumer brand of Transatel, a mobile operator owned by NTT. Unlike most eSIM startups, it operates as an actual MVNO with its own core network capabilities.

That is why device manufacturers preload it: it is a carrier relationship, not an app-store listing.

Many connected cars with built-in eSIM list Ubigi as a data provider, as do a large number of Windows laptops with cellular modems and various tablets.

If you have been searching for a data plan for a device that is not a phone, Ubigi is usually the first name that actually appears in the device's own connectivity menu.

Coverage spans 190+ destinations on 4G/5G partner networks, with the stability you would expect from a carrier-owned operation.

Plans include short trip buckets, monthly recurring options and long-validity data packs.

Trustpilot sits around 4.0 — mid-pack. Positive reviews mention reliability and device compatibility; the app and the sign-up flow attract most of the criticism.

Support is available around the clock but feels more like a telco helpdesk than a consumer app chat.

Ubigi's Trustpilot score sits around 4.0, and the reviews split neatly along device lines. Laptop and connected-car owners are the most positive group by a wide margin, because for them Ubigi is often the only option that appears natively in the device's own settings.

Phone-only users are more neutral. The service works, the carrier backing from Transatel and NTT means billing and network stability are dependable, but the pricing is mid-field and the app is utilitarian next to Saily's or Airalo's.

The recurring criticism is the interface and the account flow, which feels more like a telecoms portal than a consumer app. Reviewers rarely complain about the connection itself — the complaints are about the experience of buying and managing it.

Support is email and ticket-based with published business hours rather than a 24/7 chat desk, which reflects Ubigi's carrier heritage more than a consumer-app mindset.

The upside of that heritage is that escalations reach people who genuinely understand network-level problems — useful when the issue is a device provisioning failure rather than a forgotten roaming toggle.

Ubigi is the pick when the device is not a phone. Native support in connected cars, Windows laptops and tablets means it installs where consumer eSIM brands are simply not listed, and the Transatel/NTT backing brings genuine carrier stability.

Phone plans are perfectly good but mid-priced, and the app is more utilitarian than its rivals.

Our recommendation: choose Ubigi for device breadth and carrier stability, not for the lowest price or the nicest app.