Usim eSIM – Review & Full Test 2026

🌍

Countries covered

120 countries

💶

Starting at

8,30 €

📶

Network

5G

📊

Data

Starting at 1 GB

❌

Calls/SMS

No

📱

App

iOS & Android

Coverage in over 120 countries for reliable global connectivity.

Instant eSIM activation without QR code, in under a minute via the app.

1GB free data in the USA and Europe for new users.

Top-up possible even without WiFi or data connection.

Dual SIM: keep your main number active.

Official ratings

Destinations & coverage

Usim covers more than 120 countries worldwide, with regional or country-specific plans suited for short or long trips.

By region

Key points

✅

Advantages

  • ✓ Ultra-fast and intuitive activation via the app.
  • ✓ Affordable plans with no hidden fees or roaming charges.
  • ✓ Compatible with most recent eSIM-capable smartphones.
  • ✓ Multilingual support and easy top-ups while traveling.
  • ✓ Hotspot allowed to share the connection.
⚠️

Disadvantages

  • ✗ Variable coverage depending on local partner networks.
  • ✗ Customer support can be slow according to some reviews.
  • ✗ No calls or SMS included, data only.
  • ✗ Plan durations limited (up to 30 days max).
  • ✗ Less known than major players, mixed reviews on reliability.

Customer reviews

Google Play

5/5

“

Perfect for traveling between continents, easy top-up and no need to get a physical SIM. Very convenient!

January 1, 2025

Google Play

1/5

“

Paid €20 for a pack in the US Virgin Islands, no connection despite multiple support contacts. Disappointed and lost my money.

December 1, 2025

App Store

5/5

“

Great app for my trip to Italy, smooth connection everywhere and setup in seconds. Recommended!

November 1, 2025

App Store

1/5

“

eSIM activation issue unresolved, nonexistent support and no refund. Avoid!

October 1, 2025

Description

Usim is an ideal eSIM solution for travelers looking to avoid roaming fees and physical SIM cards. Covering more than 120 global destinations such as Europe, the USA, Asia, and South America, it offers prepaid data plans (from 1GB to unlimited) that can be activated within minutes via its iOS and Android app. Users appreciate the ability to keep their primary number for calls/SMS while using the eSIM for data, easy top-ups even without WiFi, and 1GB free in the USA/Europe to try out. Perfect for city trips, digital nomads, or business travel, Usim focuses on simplicity and competitive rates starting at $9 (around €8.3).

How it works

Install the Usim app from the App Store (iOS 15.6+) or Google Play (Android) on an eSIM-compatible smartphone.

Sign up with your email address and get 1GB free in the USA/Europe.

Select the country or region and browse the available data plans.

Choose data volume and duration, then confirm the purchase.

Use credit card, Apple Pay or Google Pay.

Activate instantly via the app, no QR code needed.

At your destination, select the Usim eSIM for mobile data and enable roaming.

⚠️ If it fails

✅ Check device compatibility in the Usim app, ensure a stable connection and restart. Contact [email protected].

✅ Toggle airplane mode on and off, select Usim eSIM and check data roaming. Restart the phone.

✅ Monitor usage in the app, disable auto-updates and top-up without WiFi if needed.

Alternatives

FAQ

Opt for a regional Europe plan with 5-10GB valid for 7-10 days, ideal for GPS, social networks and light streaming starting at about €9.

Yes, tethering is generally allowed, but check the plan and local partner network conditions on site.

Usim supports iOS 15.6+ and most eSIM-compatible Android devices (iPhone, Samsung Galaxy, Google Pixel). Check via the app.

Contact [email protected] quickly; policies vary but unused activations may be refundable under conditions.

Yes, use your physical SIM for calls/SMS and the Usim eSIM for data only, perfect for 2FA.

Top-up directly in the app even without WiFi or data, very convenient to extend your plan.

Yes, 1GB free in the USA and Europe for new users, valid for 6 months after activation.

Company info

Legal name: Wone Sagl

Address: c/o SFO International Sagl Via Francesco Chiesa 65A 6850 Mendrisio Switzerland

Email: [email protected]

Website: https://usims.com

Support

24/7

chat, email, in-app, whatsapp

Accepted payments

Visa, Mastercard, Apple Pay, Google Pay

Platforms

iOS app, Android app, Web

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