4S eSIM eSIM – Review, Test & Promo Code 2026

Item: 4S eSIM
Rating: 3.8
Author: MyBestSim

🌍

Countries covered

200 countries

💶

Starting at

3,70 €

📶

Network

5G

📊

Data

Starting at 500 MB

❌

Calls/SMS

No

📱

App

iOS & Android

Coverage in 200+ countries with 4G/5G via local operators.

Instant activation with no paperwork or store visit.

Flexible plans and top-up anytime while traveling.

Keep your physical SIM for calls/SMS.

Simple interface for travelers in a hurry.

Official ratings

Google Play

4,2 /5

10 000 reviews

Destinations & coverage

4s esim covers over 200 countries with focus on Europe, Asia, Americas via local/regional plans.

By region

Key points

✅

Advantages

✓ Ultra-fast installation via QR code or app.
✓ Affordable prices from €3.7 for 1GB/7 days.
✓ Easy top-up without losing connection.
✓ Customer support accessible by email.
✓ Compatible with most recent eSIM smartphones.

⚠️

Disadvantages

✗ No visible iOS app currently.
✗ No Trustpilot ratings found.
✗ Data only, no calls/SMS included.
✗ Coverage varies by country/operator.
✗ New company (2023), fewer reviews.

Customer reviews

Google Play

4/5

“

Simple app, fast activation on travel, good data coverage and easy top-up without hassle.

November 1, 2025

Description

4s esim, offered by Wans Technology Limited in Hong Kong, provides data eSIMs for travelers with coverage in 200+ global destinations. Flexible daily, weekly, or monthly plans starting at €3.7, activation in a few taps via Android/iOS app or website. Perfect for vacations, business or digital nomads needing reliable 4G/5G data, top-up anytime, keep your main number for calls, hotspot allowed, responsive email support.

How it works

1

Download the 4s esim app

Install from Google Play (Android) or visit 4s.net on iOS/Web.

2

Create an account

Sign up with email or social networks.

3

Choose destination

Select country/region and data plan/duration.

4

Pay for the plan

Use card or secure wallet.

5

Install eSIM

Scan QR or install via phone settings.

6

Activate on arrival

Turn on data roaming, select 4s esim.

⚠️ If it fails

❌

Installation fails

✅ Check eSIM compatibility, stable WiFi connection, restart. Contact [email protected].

❌

No signal

✅ Toggle airplane mode on/off, enable data roaming, rescan QR.

❌

Data runs out quickly

✅ Monitor consumption in app, top-up, limit streaming/auto-updates.

Alternatives

Simbye

Reachsim

Orange Travel

FAQ

What is the best 4s esim plan for Europe?

Choose a regional Europe plan 5-10GB/7-30 days from €10, ideal for multi-country city trips.

Is hotspot allowed with 4s esim?

Yes, tethering is possible on most plans, check conditions by destination.

Is my phone compatible with 4s esim?

iPhone 12+, recent Samsung Galaxy, Google Pixel; full list available on 4s.net.

Refund if it doesn't work?

Contact [email protected] quickly; policy according to terms and conditions.

Use with physical SIM?

Yes, data eSIM + physical SIM for calls/SMS dual use.

4s esim usage tracking?

Real-time via app or website 4s.net.

Company info

Legal name: Wans Technology Limited

Address: Rm 1512 15/F LUCKY CTR 165-171 WAN CHAI RD, Hong Kong

Email: [email protected]

Website: https://4s.net

Support

24/7

email, in-app

Accepted payments

Visa, Mastercard, Apple Pay, Google Pay

Platforms

iOS app, Android app, Web