Usims Review 2026 - Is Usims's eSIM reliable?
At a glance
Reviews & ratings
I found the eSIM very easy to use, affordable, and reliable during my trip, I recommend it to travelers wanting to avoid classic roaming.
Quick installation and working well so far, the connection was enough for browsing, messaging, and some internet calls.
Practical app to stay connected on the go, but you should check phone compatibility first to avoid unpleasant surprises.
Pros & cons
👍 What we like
- ✓Coverage in over 120 countries with a single eSIM, convenient for multi-destination travels.
- ✓Free trial including 1 GB of data for first users, useful to test the service before buying.
- ✓Guided installation and activation process within the app, without QR codes or complicated technical steps.
- ✓Ability to keep your physical SIM card for calls and SMS and use USIMS for data only.
- ✓Data plans sold starting at small volumes, suited to tight budgets or short stays.
- ✓Support accessible through the app and email, with an integrated automated assistant for quick help.
👎 What we like less
- ✗Service limited to mobile data, no phone numbers or classic calls or SMS included.
- ✗Standard 10-day validity per plan may be inconvenient for very long stays without successive top-ups.
- ✗Detailed list of partner networks and available speeds is not clearly stated.
- ✗Some countries or regions are not covered despite the overall promise of more than 120 destinations.
- ✗Some online reviews mention device compatibility problems or user experience issues.
What is Usims?
What is USIMS?
USIMS is a travel eSIM app offering mobile data plans in over 120 countries, with no roaming fees or physical SIM cards to buy or insert. The eSIM, an embedded SIM card, is downloaded once onto your compatible phone, then you add data plans for the countries or regions you travel to.
USIMS offers different types of plans: local plans for a specific country, regional plans covering several countries within the same zone, as well as global coverage accessible through the app. New users get a free eSIM with 1 GB offered for first use, then can purchase data plans as needed, with all payments done inside the app.
Activation is done entirely online via the iOS or Android app: you download the app, check your phone’s eSIM compatibility, activate the USIMS eSIM, then choose a data plan. You keep your physical SIM card for calls and SMS, while the USIMS eSIM is used for data connection, ideal for frequent travelers and international stays.
Plans overview
Destinations covered by Usims
Coverage broken down by region. Tap a region to see its countries.
Our verdict
USIMS is a travel eSIM app offering a single eSIM valid in over 120 countries, with 1 GB of free data for new users and flexible, low-cost data plans.
Popular alternatives
Frequently asked questions
No, Usims is not a scam: it is a reliable, well-known eSIM with a 4/5 rating in our test, coverage across 120 destinations and access to local 4G/5G networks (speed depends on local coverage). Just make sure your phone is eSIM-compatible before buying.
Usims covers more than 120 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: Service limited to mobile data, no phone numbers or classic calls or SMS included, Standard 10-day validity per plan may be inconvenient for very long stays without successive top-ups, Detailed list of partner networks and available speeds is not clearly stated, Some countries or regions are not covered despite the overall promise of more than 120 destinations and Some online reviews mention device compatibility problems or user experience issues.
It depends on your destination and budget: Usims scores 4/5 in our test, but the best value changes by country. Compare current deals in our comparator before choosing.
For a few days in Europe, a local plan of 5 to 10 GB valid for 10 days in the visited country is usually enough for GPS navigation, messaging, and some streaming.
USIMS does not specify a general restriction on tethering, but tethering usage often depends on local network policies, so it is advisable to test and monitor consumption.
USIMS works with most recent smartphones equipped with eSIM, like many iPhone, Samsung Galaxy, Google Pixel models, and some other Android models; the app automatically detects compatibility during registration.
No, USIMS provides data-only eSIMs, with no phone number, voice calls, or SMS included; you must keep your main SIM card or use messaging apps over the internet.
Prices are displayed in US dollars and vary by region and data quantity; initial plans start around $2, with payment done directly in the app.
Yes, the eSIM has unlimited validity as long as it is not deleted from the device; you can simply buy new data plans for new trips.
The app’s main screen shows your active plans and remaining data, and purchase history is available via the history icon in the app.
You can use the Contact section in the app to send a message with your email address, or write directly to [email protected] for assistance.