Usim Review 2026 - Is Usim's eSIM reliable?
At a glance
Reviews & ratings
Good speed and perfect price for unlimited 5G data.
Better and cheaper, thanks for the app.
Fast and easy to use.
Pros & cons
👍 What we like
- ✓Fast and easy activation via app.
- ✓Global coverage in 190+ countries.
- ✓Customer support available 24/7.
- ✓No physical SIM required.
- ✓Simple interface and real-time data monitoring.
👎 What we like less
- ✗Speeds vary depending on country and partner operator.
- ✗Support sometimes slow according to reviews.
- ✗Incomplete coverage in some countries like Syria.
- ✗Occasional activation issues reported.
- ✗Duration options limited to 30 days.
What is Usim?
What is USim?
USim is an eSIM solution for travelers providing global data connectivity without a physical SIM. The app allows you to buy, activate, and manage data plans instantly in over 190 countries.
Plans include local, regional, or global options with variable data (from 1GB to unlimited), activation on arrival, and easy top-ups. Works on recent eSIM devices with secure management and no hidden fees.
Plans overview
Countries covered by Usim
Coverage broken down by region. Tap a region to see its countries.
Our verdict
USim offers affordable global eSIM connectivity in over 190 countries, with no roaming fees or physical SIM. Manage everything via an intuitive app with instant activation.
Popular alternatives
Frequently asked questions
No, Usim is not a scam: it is a reliable, well-known eSIM with a 3.8/5 rating in our test and access to local 4G/5G networks (speed depends on local coverage). Just make sure your phone is eSIM-compatible before buying.
Usim covers many destinations. Availability and network quality depend on the destination and the local partner operator: check that your travel country is covered before buying.
The main downsides we found in our test: Speeds vary depending on country and partner operator, Support sometimes slow according to reviews, Incomplete coverage in some countries like Syria, Occasional activation issues reported and Duration options limited to 30 days.
It depends on your destination and budget: Usim scores 3.8/5 in our test, but the best value changes by country. Compare current deals in our comparator before choosing.
For a city trip or a week in Europe, choose a regional Europe plan with a data volume suited to your usage (social networks, GPS, light streaming). Prefer a plan with at least 5 to 10 GB to be comfortable.
Yes, tethering is allowed with USim on most devices. However, it can depend on the local partner network and plan type. It is recommended to check the specific conditions of your plan and test on site.
USim works on most recent eSIM-compatible smartphones, notably iPhones (from iPhone XS/XR with iOS 13.0+), Google Pixel, and recent Samsung Galaxy models. Always check the list of compatible devices on the official USim website before purchase.
Refund policies vary. In case of proven technical problems not resolved by support, a refund request is possible. Contact USim customer service quickly to know the conditions and procedures.
Yes, most Dual SIM smartphones (physical + eSIM) or eSIM-only models allow using a physical SIM for your usual calls/SMS and the USim eSIM specifically for mobile data when traveling.
The USim app allows you to monitor your data usage in real time. It is advised to check it regularly to manage your plan and avoid overruns or surprises.