Ubigi eSIM plans and prices
Ubigi sells mostly fixed amounts of data, valid 7 or 30 days, with a few unlimited plans in Europe. Prices for Japan, Italy and the UK, three of the countries where it is the pick.
| Plan | Japan | Italy | UK |
|---|---|---|---|
| 3 GB, 30 days | Not offered | $5.00 | $5.00 |
| 10 GB, 7 days | $14.00 | Not offered | $9.00 |
| 10 GB, 30 days | $16.50 | $12.00 | $11.00 |
| 25 GB, 30 days | $32.00 | $19.00 | $22.00 |
| 50 GB, 30 days | Not offered | $29.00 | $32.00 |
| "Unlimited", 7 days | Not offered | $19.00 | Not offered |
Prices checked Nov 9, 2026, in US dollars. The 30-day plans often cost only a couple of dollars more than the 7-day ones. The price on Ubigi's site when you buy is the one that counts.
The 7-day plan won't cover a 10-day trip. The 30-day one costs $2.50 more and leaves room to spare.
Get Ubigi for JapanWhat you actually get with Ubigi
The details the plan list leaves out, refunds included, which Ubigi doesn't put in writing.
What you actually get with Ubigi speed, hotspot, refunds
- Who runs it
- Transatel, a company of the NTT group, which also connects cars and machines worldwide
- Network in Japan
- NTT Docomo and KDDI (au). Ubigi's store page also lists SoftBank
- IP address in Japan
- Japanese, so apps see you in Japan reported by users
- Hotspot
- Allowed, with no separate limit stated
- 5G
- On compatible phones. Some users only got 4G reported by users
- When the days start
- On 10 GB plans, when you switch to the Ubigi line in a covered country, not when you buy
- Unlimited plans (Europe)
- Full speed for 5 GB a day, then 2 Mbps until the next day
- If your trip changes
- Not stated by Ubigi
From Ubigi's plan pages, its setup guide and user reviews on esimdb, Nov 9, 2026.
Where Ubigi is the cheapest
Nomad is Ubigi's closest rival on price. Here is the same 10 GB for 30 days in six countries: Ubigi wins four, Nomad two.
| Country | Ubigi | Nomad |
|---|---|---|
| Italy | $12.00 | $18.50 |
| France | $10.00 | $14.00 |
| United Kingdom | $11.00 | $17.50 |
| Spain | $12.00 | $14.00 |
| Japan | $16.50 | $16.00 |
| Thailand | $11.00 | $10.00 |
In Japan Nomad wins by half a dollar, and Ubigi stays the pick for its Docomo coverage. In Thailand, Nomad is both cheaper and the pick. In the four European countries, Ubigi saves you several dollars.
Ubigi eSIM in Japan: Docomo and a Japanese address
In Japan, Ubigi wins on network more than on price.
It runs on NTT Docomo and KDDI, and Ubigi belongs to NTT, the group behind Docomo. Users see a Japanese IP address, so ChatGPT and Japanese apps work as they would for someone living there. Several users of Airalo report a Singapore address instead, and one Saily user saw Hong Kong.
On the 10 GB, 30 days plan, about $16.50 covers a two-week trip with room to spare, and the days only start when you switch to the Ubigi line in Japan. You can install it a week ahead without losing any.
The full comparison for Japan, with the unlimited plans and the networks city by city: best eSIM for Japan.
Get Ubigi for JapanInstalling Ubigi
Install it one of two ways, then switch it on when you land.
1Bought in the app
Install from the dashboard
The Ubigi app installs the eSIM itself from its dashboard. No code to scan.
2Bought on the website
Scan the QR code from your email
Ubigi emails a QR code. Open Settings > Cellular > Add eSIM and scan it from a second screen or a printout.
3When you land
Switch your data to Ubigi
Set the Ubigi line for Cellular Data and turn on its Data Roaming. On a 10 GB plan, that is also when its days start counting.
The iPhone screens, one at a time: how to set up an eSIM on iPhone.
When to buy something else
Ubigi loses on four kinds of trip.
Several countries in Europe
Each Ubigi plan above is for one country. For a route through several, the Airalo review covers its 41-country Eurolink plan.
China
Ubigi's own blog says both that you need a VPN for Google and WhatsApp and that you don't. Airalo states plainly that they work.
Greece and Costa Rica
The cheapest Ubigi plan uses Nova in Greece and Liberty in Costa Rica, not Cosmote or Kölbi, the leading networks there.
Thailand
Nomad costs less for the same 10 GB, and it is the pick there.
Ubigi vs Nomad
Nomad is the other low-priced eSIM, and the closest match for Ubigi country by country.
10 GB in Japan
$16.5010 GB, 30 days
$16.00Wins10 GB, 30 days
Nomad, by 50 cents
Networks in Japan
Docomo and KDDIWinsDocomo is NTT's network
KDDI and SoftBankKDDI only above 10 GB
Ubigi, the only one of the two on Docomo
10 GB in Italy
$12.00Wins10 GB, 30 days
$18.5010 GB, 30 days
Ubigi, by $6.50
How Ubigi compares with every other option, destination by destination: all destinations.
Ubigi eSIM review questions
Is Ubigi a reliable eSIM provider?
Yes. Ubigi is run by Transatel, a company of the NTT group, and uses Docomo and KDDI in Japan. In Greece and Costa Rica, though, its cheapest plan skips the leading network.
Is Airalo or Ubigi better for Japan?
Ubigi. Its 10 GB costs about $16.50 against about $18.00 at Airalo, runs on Docomo and KDDI, and users report a Japanese address, where Airalo's traffic comes out in Singapore.
Does Ubigi eSIM give you a phone number?
No. Ubigi sells data plans, and its own setup guide tells you to keep your main line on for calls and texts. WhatsApp and FaceTime calls run over the Ubigi data.
What country is Ubigi from?
Ubigi is a brand of Transatel, which belongs to NTT, the Japanese telecom group.