Ubigi eSIM Review: Features, Pricing, Coverage, Pros and Cons

Item: Ubigi eSIM Review
Rating: 4
Author: Daniyal Alam

Ubigi is a global data-only eSIM provider backed by NTT Group, focused on multi-device
connectivity across smartphones, laptops, tablets, and connected cars.

200+

Countries

4G / 5G

Network

1 day

Min Plan

1 to 365 days

Expiration

Calls

SMS

Quick Verdict: Is Ubigi Worth It?

Ubigi is the strongest choice for travelers and professionals who need eSIM connectivity across multiple device types. No competitor matches its native support for Windows laptops, iPads, Android tablets, and connected cars from BMW, Toyota, and Stellantis. NTT Group backing delivers real network quality through Transatel’s full MVNO infrastructure, and independent testing confirms top-tier speed and stability. SmartStart activation and the reusable single-eSIM model add practical value for frequent travelers. Budget-conscious users should compare Saily or Airalo for lower per-GB rates. Travelers needing voice calls should look at AloSIM for its bundled Hushed number or Airalo’s Discover+ global plans with native calling.

What Is Ubigi and How Does It Work?

Ubigi is a data-only eSIM provider operated by Transatel, a Paris-based full MVNO founded in 2000 and acquired by Japanese telecom giant NTT Group in 2019. The consumer brand launched in 2017 and now covers more than 200 destinations across all continents. Travelers can choose from local single-country plans, regional multi-country bundles, and global plans. These are available as one-time purchases, monthly subscriptions, or annual packages. Ubigi stands out for its native eSIM support on Windows laptops, iPads, Android tablets, and connected cars from BMW, Toyota, and Stellantis brands.

Who Should Use Ubigi?

Multi-Device Travelers

who need data on laptops and tablets alongside their phones without relying on hotspot workarounds

Business Road Warriors

managing company-wide eSIM connectivity through Ubigi's centralized enterprise MDM portal.

Long-haul Frequent Travelers

visiting multiple regions who want one reusable eSIM profile for every destination.

Connected car owners

With BMW, MINI, Toyota, Jaguar Land Rover, or Stellantis vehicles needing factory-integrated in-car Wi-Fi

Budget-first Travelers

who need the absolute lowest per-GB pricing, as Ubigi's global and small-data plans carry a premium over Saily or RedteaGO

Travelers Who Need Native Voice Calls or SMS

since Ubigi is strictly data-only with no phone number on any plan

Ubigi's Pricing and Plan Types

Ubigi offers local, regional, and global plans in three formats: one-off purchases, monthly subscriptions with a three-month minimum commitment, and annual packages. Plan validity starts on arrival through Ubigi’s SmartStart feature, not at the time of purchase. Local plans start at $2.90 for 500 MB in the US, while Europe 10 GB costs $15 and a 10 GB Best World plan costs around $32. The best value comes from larger regional data bundles, where the per-GB rate drops to well below $2.

Countries, Coverage, and Network Support

Ubigi operates as a full MVNO with its own proprietary core network and roaming agreements with more than 300 mobile operators worldwide. The service runs on major carriers in each market, including T-Mobile in the US, NTT Docomo in Japan, and SK Telecom in South Korea. Independent testing has ranked Ubigi among the fastest and most stable travel eSIM providers available.

200+ destinations covered

across Africa, Asia, Europe, the Americas, the Middle East, and
Oceania

4G standard, 5G expanding

60+ countries, with 4G/LTE standard across all destinations

Ranked fastest eSIM

by Travel eSIM Expert and most stable by Alertify in independent
benchmarking

Regional bundles

cover Europe (30+ countries), Asia (16+ countries), Americas, Africa, Caribbean, and Middle East zones

How To Set Up Ubigi on Your Device

iPhone Setup

Download the Ubigi app from the App Store, create an account, and purchase a data plan. The app installs the eSIM profile automatically. Alternatively, scan the QR code from your purchase email through Settings, Cellular, Add eSIM. Your device must be carrier-unlocked.

Android Setup

Install the Ubigi app from Google Play, register, and buy your plan. The eSIM installs through the app automatically. For manual setup, navigate to Settings, Network and Internet, Mobile Network, Add eSIM, then scan the QR code provided by Ubigi after purchase.

Activation Process

Ubigi's SmartStart feature means your purchased plan activates automatically when you arrive at a covered destination. Install the eSIM and buy your plan before departure. The validity countdown begins only when your device connects to a local network, not at purchase.

Dual SIM Usage

Keep your home carrier's physical SIM active for calls and SMS while setting Ubigi as your data line. On iPhone, go to Settings, Cellular, and assign Ubigi for mobile data. Only one eSIM profile can handle data at a time, but your primary number stays reachable.

Top-up Process

Open the Ubigi app and select a new plan or add data for your current destination. Ubigi uniquely allows in-app purchases even without active data or Wi-Fi. For monthly plans, data renews automatically each billing cycle. Unused data does not roll over to the next period.

Support & Help

Ubigi offers an AI chatbot available 24/7 through its app and website for instant troubleshooting. Human support is available via live chat and email from 08:00 to 21:00 CET daily. There is no phone support. The help center also includes device-specific setup guides and video tutorials.

Five Features That Differentiate Ubigi From Competitors

Native Laptop and Tablet eSIM Support

Here’s the cleaned-up version: Ubigi comes pre-installed on Windows laptops from Microsoft Surface, Dell, HP, Lenovo, Acer, Asus, Samsung, and Panasonic through the Windows Mobile Plans app. It also supports iPads and Samsung Galaxy Tabs natively. No other major travel eSIM provider offers this level of non-phone device compatibility, eliminating the need for hotspot tethering workarounds.

Connected Car Factory Integration

Ubigi is embedded directly into vehicles from BMW, MINI, Toyota, Jaguar Land Rover, and Stellantis brands, including Fiat, Maserati, Alfa Romeo, and Jeep. The in-car eSIM creates a Wi-Fi hotspot that supports up to eight devices simultaneously within a 15-meter range. Drivers and passengers can access navigation, streaming, and connectivity without using phone data, with coverage across more than 35 European countries and expanding globally.

NTT Group full MVNO infrastructure

Unlike reseller-based eSIM providers that rely on third-party aggregators, Ubigi’s parent company, Transatel, operates its own core network with the GSMA-assigned network code 901-37. Backed by NTT Group’s vast telecom ecosystem, this full MVNO status gives Ubigi direct roaming agreements with more than 300 carriers and helps deliver consistently faster speeds. Independent testing by Travel eSIM Expert ranked Ubigi as the fastest travel eSIM provider available.

SmartStart Destination-Triggered Activation

Launched in February 2025, SmartStart automatically begins plan validity when your device connects to a local network at your destination. This allows travelers to install the eSIM and buy plans days or weeks before departure without losing any validity period. Plans remain inactive until arrival and can stay dormant for up to six months if never activated, making advance trip planning much easier.

In-app Top-up Without Any Connectivity

Ubigi is the only major travel eSIM provider that allows users to purchase additional data through the mobile app even when their current plan is fully depleted and no Wi-Fi network is available. This removes the common frustration of running out of data in an unfamiliar place and being unable to top up without first finding a public hotspot or cafe.

All Features at a Glance

Feature	Status
eSIM compatible	✓ Yes
iPhone compatible	Yes (iPhone XS / XR and newer, iOS 12.1+)
Android compatible	Yes (Google Pixel 4+, Samsung Galaxy S20+, OnePlus 11+, Xiaomi 13+, and 100+ models)
Data only	✓ Yes
Calls included	✗ No
SMS included	✗ No
Local number	✗ No
Unlimited data plans	✓ Yes (available in 75+ destinations, throttled after high-speed cap)
Subscription / auto-renew	✓ Yes (monthly with 3-month minimum, annual packages)
Reusable eSIM	✓ Yes (install once, reuse across all trips and destinations)
Multi-device support	✓ Yes (laptops, tablets, connected cars)
Hotspot / tethering	✓ Yes (no restrictions)
Global plans	✓ Yes (World plan covers 200+ countries)
Regional plans	✓ Yes (Europe, Asia, Americas, Africa, Caribbean, Middle East)
Local / country plans	✓ Yes (200+ individual destinations)
Activation on arrival	✓ Yes (SmartStart auto-activates when you reach your destination)
Top-up available	✓ Yes (in-app, even without Wi-Fi or existing data)
App available	✓ Yes
iOS app	✓ Yes (rated 4.6 / 5)
Android app	✓ Yes (rated 4.0 / 5)
24/7 customer support	Partial (AI chatbot 24/7, human agents Mon-Sun 08:00-21:00 CET)
Live chat support	✓ Yes
eSIM transfer	✓ Yes (up to 5 reinstallations on new devices)
Privacy-focused / no-log policy	✗ No (GDPR-compliant, ISO 27001 certified, but no explicit no-log policy)

Does Ubigi Support Calls, SMS, and Local Numbers?

Ubigi is strictly a data-only eSIM service. No plan at any tier includes voice calls, SMS, or a phone number. This applies equally to local, regional, and global plans. Ubigi’s own documentation recommends using VoIP applications like WhatsApp, FaceTime, Skype, Viber, or Telegram for voice and text communication over the data connection. For travelers using dual-SIM phones, the most practical workaround is keeping a home carrier physical SIM active for incoming calls and SMS while routing all data traffic through Ubigi. iMessage also works over Ubigi’s data connection. Travelers who specifically need a real phone number abroad should consider AloSIM, which bundles a free Hushed international number with voice minutes and texts on most plans, or Airalo’s Discover+ global eSIM, which includes an Austrian phone number with calling minutes and SMS. RedteaGO also provides calls and SMS in select regions, including the EU and parts of Asia.

Ubigi Pros and Cons

What Ubigi does well

Multi-device eSIM support. Ubigi works natively on Windows laptops, iPads, Android tablets, and connected cars, a level of compatibility that few travel eSIM providers can match.

SmartStart activation. Plan validity begins automatically when you arrive at your destination, so you do not lose any of your purchased data before the trip starts.

Full MVNO network backbone. Ubigi’s parent company, Transatel, operates its own core network with more than 300 carrier agreements, helping deliver faster and more stable connections than reseller-based competitors.

Top-up without connectivity. Users can buy more data through the app even when their current plan is fully depleted and no Wi-Fi is available nearby.

Reusable single eSIM profile. Install Ubigi once and keep using the same eSIM across future trips and destinations without scanning a new QR code each time.

Connected car integration. Partnerships with BMW, MINI, Toyota, Jaguar Land Rover, and Stellantis enable built-in in-car Wi-Fi hotspots that can support up to eight devices at the same time.

Where Ubigi falls short

Strictly data-only service. Ubigi does not include voice calls, SMS, or a phone number on any plan, so travelers must rely on internet-based apps for communication.

Dated app interface. The app lacks modern polish, can log users out unexpectedly, and does not offer social login or a clear at-a-glance plan comparison view.

Slow customer support response. Email replies can take more than 24 hours, and reaching a human agent through live chat may be difficult during busy periods.

Premium pricing on small and global plans. Budget travelers may find better per-GB value from competitors such as Saily or Airalo, especially for smaller packages and worldwide plans.

The biggest tradeoffs: Ubigi is built for travelers and professionals who need connectivity across more than just a smartphone. Its native laptop, tablet, and connected car eSIM support, combined with NTT Group infrastructure and 200+ destination coverage, makes it the clear choice for multi-device users and enterprise teams. SmartStart activation and the reusable eSIM profile add genuine convenience for frequent travelers. However, budget travelers should compare pricing against Saily or Airalo for smaller data packages. Anyone needing native calls or SMS should consider AloSIM for its bundled Hushed phone number or Airalo’s Discover+ plans with included voice minutes.

Ubigi vs Competitors

Ubigi vs. Yesim

Yesim wins on value with trial plans from €0.50, a bundled free VPN, and virtual phone numbers that Ubigi lacks entirely. Ubigi takes device support decisively with native laptop, tablet, and car connectivity that Yesim cannot match. Yesim’s Pay & Fly pay-as-you-go model offers more flexible billing. Choose Ubigi for multi-device coverage or Yesim for budget flexibility, privacy features, and virtual number access.

Ubigi vs. AloSIM

AloSIM’s standout advantage is the free Hushed international phone number bundled with most plans, giving travelers real voice calls and SMS that Ubigi entirely lacks. Ubigi counters with broader coverage through global plans that AloSIM does not offer and native support for laptops and connected cars. Both sit in the mid-range pricing tier. Choose AloSIM if you need a working phone number or Ubigi for multi-device connectivity and global reach

Ubigi vs. Airalo

Airalo offers lower entry pricing from $4.50, a polished app available in 50+ languages, and Discover+ global plans with native voice calls and SMS included. Ubigi wins on device support with laptop, tablet, and car eSIM connectivity that Airalo lacks entirely. Airalo’s Airmoney cashback program adds value for repeat users. Pick Airalo for budget travel and calling features or Ubigi for multi-device professional use.

Ubigi vs. Maya Mobile

Maya Mobile delivers competitive unlimited plans and the highest Trustpilot rating (4.6/5) among major eSIM providers, Ubigi provides a full app experience, native laptop and car eSIM support, and NTT Group infrastructure. Maya’s 180-day money-back guarantee is unmatched in the market. Choose Maya for unlimited data and budget value or Ubigi for multi-device connectivity and app-based plan management.

Ubigi vs. Saily

Saily, backed by Nord Security, offers a polished app rated 4.7 stars, built-in ad blocking, web protection, and an Ultra subscription that bundles NordVPN, NordPass, and Incogni. Ubigi wins on device support with deep laptop, tablet, and connected car integration that Saily cannot match. Saily’s lower pricing starts at $1.79 per plan. Choose Saily for lower-cost consumer plans and security extras, or Ubigi for multi-device enterprise connectivity.

Ubigi vs. RedteaGO

RedteaGO undercuts Ubigi significantly with plans starting at $0.54 and offers voice calls and SMS in select regions, including the EU and parts of Asia. Ubigi wins on coverage with 200+ versus roughly 150 destinations, stronger customer support backed by NTT Group, and native multi-device eSIM support for laptops and cars. Choose RedteaGO for absolute lowest pricing or Ubigi for broader coverage, device flexibility, and enterprise-grade reliability.