Ubigi eSIM: Review, Guides, Discounts and Test Results

Our Ubigi guide after using the brand in 18 Countries

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Philip Brown
By Philip
Co-Founder, eSIM Connectivity Analyst & World Traveler
Currently eSIM testing in: UK

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Quick Answer

Is Ubigi a good eSIM?

Yes. Ubigi is one of the strongest travel eSIMs we’ve tested. It is currently ranked as Travel ESIM Expert’s fastest eSIM overall, scoring 95.1% in our speed study. We also gave it 4.5/5 in our independent Ubigi review after using it in 17 countries. It combines fast speeds and reliable signal with one reusable global eSIM profile. However, prices vary considerably by destination, the app could be clearer and customer support is slower than we’d like.

Ubigi
eSIM Provider Quick Facts
Personally tested
18 Countries
first-hand Travel eSIM Expert tests
Fastest speed
897 Mbps (Portugal)
best recorded download speed
Testing period
Nov 2023 - Sep 2026
our hands-on testing dates
Coverage
200+
countries and destinations available
Network
4G and 5G
available network technology
Services included
Data plans only
what the standard plans provide

Our Ubigi testing across 17 countries

We’ve personally tested Ubigi in Belgium, China, Colombia, France, Hong Kong, Indonesia, Macau, Malaysia, Portugal, Singapore, South Korea, Taiwan, Thailand, the United Arab Emirates, the United Kingdom, the United States and Vietnam.

These four results show the range we experienced:

  • Portugal: 897 Mbps on Ubigi/MEO 5G, our fastest recorded Ubigi result
  • Taiwan: 411 Mbps on Taiwan Mobile 5G in Taipei
  • South Korea: 351 Mbps on SK Telecom 5G
  • Hong Kong: 1.46 Mbps on 4G, where Ubigi performed poorly throughout our week-long test

Ubigi is the current winner of our fastest eSIM comparison, with a 95.1% overall score. It ranked first for speed in Portugal and the USA, while also placing third in the United Kingdom and Colombia.

Its biggest strength has been consistency. Although Hong Kong was a notable failure, Ubigi has generally delivered fast connections and dependable signal across the countries where we’ve used it.

You can see all the individual download and upload speeds we’ve recorded in our eSIM speed test database. For our complete assessment of its performance, pricing and usability, read our independent Ubigi review.

Ubigi coverage and networks

Ubigi advertises coverage in more than 200 destinations. It is operated by Transatel, part of NTT Communications, and connects travelers to established local mobile networks around the world.

The exact network and available connection type depend on the destination. We’ve connected Ubigi to networks including MEO in Portugal, Taiwan Mobile in Taiwan and SK Telecom in South Korea.

Use our travel eSIM network database to check which networks Ubigi and other eSIM providers used during our first-hand testing.

Ubigi plans and features

Ubigi offers prepaid data plans for individual countries, regions and worldwide travel. It also sells monthly plans in selected destinations.

One of Ubigi’s most useful features is its reusable global eSIM profile. Once the Ubigi eSIM is installed, you can purchase plans for future trips without installing a new eSIM each time.

Ubigi plans are data-only. You do not receive a traditional telephone number, calls or SMS, although internet-based services such as WhatsApp, FaceTime and Skype work normally.

Personal hotspot worked in every country where we successfully connected to Ubigi.

Plan prices vary considerably between destinations. Check the available plan for your destination before deciding whether Ubigi offers better value than the other providers featured in our travel eSIM guides and comparisons.

Our Ubigi review, discount and testing resources

Use the resources below to read our complete review, find our verified discount and explore the results collected during our travels.

You can also compare Ubigi’s recorded speeds against other providers in our eSIM speed test database.

Frequently asked questions

Is Ubigi legitimate?

Yes. Ubigi is operated by Transatel, a telecommunications company owned by NTT Communications. We have personally purchased and tested its eSIM plans in 17 countries. You can read about the complete experience in our Ubigi review.

Is Ubigi the fastest eSIM?

Ubigi is currently ranked as the fastest overall provider in our independent eSIM speed study, with a score of 95.1%. Results still vary by country and local network, so it will not necessarily be the fastest option in every destination.

Does Ubigi provide calls and SMS?

No. Ubigi’s standard travel plans are data-only and do not include a telephone number, traditional calls or SMS. Internet-based calling and messaging apps work using your Ubigi data connection.

Do I need to install a new Ubigi eSIM in every country?

No. Ubigi uses a reusable global eSIM profile. Once it is installed, you can purchase another country or regional plan through your existing Ubigi account.

Can I use a hotspot with Ubigi?

Yes. Personal hotspot and tethering worked whenever we tested them with an active Ubigi connection.

Does Ubigi offer unlimited data?

Ubigi mainly sells fixed-data plans. Plan sizes and availability vary by destination, so check the allowance and fair-use conditions before purchasing.

Is there a Ubigi discount code?

Yes. Our verified Ubigi coupon code is TEE10, which gives new users 10% off eligible prepaid plans. Monthly plans are excluded. Visit our Ubigi coupon page to check the latest verification, eligibility rules and instructions.

How we test eSIMs

Speed Testing

We run 3 consecutive speed tests using Speedtest by Ookla in the same physical location with at least 3 out of 4 signal bars. If all 3 results fall within roughly a 15% download speed range, we record the highest result. If results vary more than this, we rerun the test to avoid random spikes or drops. This reflects realistic peak performance under stable conditions.

Stability Check

We use the eSIM normally over at least 2 to 3 days and note:

  • Any full signal dropouts
  • Whether reconnections happen automatically
  • Whether any manual intervention is needed

If no issues occur, we state that explicitly.

Real-Life Usage Tests

We test every eSIM with common everyday tasks, including:

  • General web browsing
  • Google Maps loading and navigation
  • WhatsApp messaging and media sending
  • Uploading photos to cloud storage
  • YouTube streaming (HD playback)
  • Hotspot usage where supported, connecting a 2nd device

These checks confirm the connection is usable in real travel scenarios, not just fast in speed tests.

Customer Support Testing

We run quarterly support reviews across all providers using the same questions for each provider. We record and rate:

  • Time to 1st human response
  • Support channel used (live chat, email, WhatsApp)
  • Whether the response is human or automated
  • Whether the issue is resolved in the 1st interaction
  • Overall clarity and usefulness of the reply

Support results shown in reviews reflect the most recent quarterly test.

Devices

We test on:

iPhone 13 Pro Max iPhone 15 Pro Max iPhone 17 Pro Max iPad Pro M2

Why you can trust us

59 Providers personally tested 455 Total verified speed tests run 20 Countries tested

  • We test each product personally.
  • Our feedback and comments are entirely our own, we are not influenced by any third parties.
  • We test extensively and back it up with data (speed tests, screenshots and more).
  • We keep our content updated and our information accurate.
  • We are a truly multi-national team coming from, living in and traveling to many different countries. As a result, we have genuinely used these products for years.
  • We have an extensive background in writing, editing, strategizing and working on content creation in the UK, France, USA and South America with a combined experience of over 15 years.
  • More on why you can trust us
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