You've heard about eSIMs but aren't quite sure what they are? No worries. In this complete guide, we explain everything: definition, how they work, compatibility, and why they're the ideal solution for staying connected while traveling in 2026.
What exactly is an eSIM?
The term eSIM stands for embedded SIM. Unlike a traditional SIM card (that small plastic chip you insert into your phone), an eSIM is directly soldered inside your smartphone by the manufacturer.
The key difference? An eSIM is programmed remotely. Rather than buying a physical card in a store, you receive a QR code by email that you scan with your phone. In seconds, your plan is activated — no hassle, no risk of losing a tiny card.
eSIM technology has existed since 2016 on smartwatches. It became available on consumer smartphones in 2018 with the iPhone XS.
How does an eSIM work?
The process is simple and entirely digital. Here's how it works with GoDataTravel:
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1Choose your plan online
Select your destination, data amount and duration. Secure payment in a few clicks.
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2Receive your QR code by email
Immediately after payment, an email with your activation QR code is sent to you.
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3Scan the QR code in your settings
Go to Settings → Cellular → Add a Plan and scan the code.
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4Activate upon arrival
Activate your eSIM at your destination. Your phone automatically connects to the local network.
Why choose an eSIM for travel?
The eSIM has many advantages over a physical SIM bought locally:
| Criteria | GoDataTravel eSIM | Local physical SIM |
|---|---|---|
| ⚡ Activation | Instant (before departure) | Wait in line at a store |
| 💰 Price | Competitive, known in advance | Variable, possible surprises |
| 📱 Main SIM | Keep your number active | Temporary local number |
| 🔒 Security | No card to lose | Risk of loss or theft |
| 🌍 Multi-country | One regional plan | New SIM per country |
| 📦 Delivery | 100% digital, no delay | Only available on location |
With an eSIM, you keep your regular phone number (to receive important calls and texts) while enjoying cheap local data connectivity.
Which devices are eSIM compatible?
The good news: the vast majority of recent smartphones (from 2019–2020 onwards) are eSIM compatible. Here are the main lists:
🍎 Apple iPhone
- iPhone XS / XS Max / XR
- iPhone 11 / 11 Pro / Pro Max
- iPhone SE (2020, 2022)
- iPhone 12, 13, 14 (all versions)
- iPhone 15, 16 (all versions)
- iPhone 17, 17 Air, 17 Pro, 17 Pro Max ⭐
🤖 Samsung Galaxy
- Galaxy S20, S21, S22, S23, S24
- Galaxy S25, S25+, S25 Ultra ⭐
- Galaxy S26, S26+, S26 Ultra ⭐
- Galaxy Z Fold 3, 4, 5, 6
- Galaxy Z Flip 3, 4, 5, 6
- Galaxy Note 20 / Ultra
- Galaxy A54, A55, A56
📱 Google Pixel
- Pixel 3 / 3a and newer
- Pixel 4, 5, 6, 7, 8
- Pixel 9 / 9 Pro / 9 Pro XL
- Pixel 10 / 10 Pro / 10 Pro XL ⭐
- Pixel 10a ⭐
📲 Other brands
- Motorola Razr / Edge (2020+)
- Oppo Find X3, X5, X7
- Xiaomi 13T, 14T Pro
- Huawei P40, Mate 40
- Microsoft Surface Duo
Some phones purchased in specific countries (notably China) may be carrier-locked and not support eSIM. Always check with your current carrier.
eSIM and travel: real use cases
🌍 Traveling in Europe
With a regional Europe eSIM plan, you travel across 30+ countries with a single eSIM. No more excessive roaming charges or local SIMs to swap at every border. Reliable connectivity from Paris to Rome via Madrid.
🌏 Trip to Asia
Japan, Thailand, South Korea, Singapore — all covered by our Asia eSIM plans. Fast 4G/5G networks for sharing photos, using Google Maps and staying reachable at low cost.
✈️ Multi-destination trips
Visiting multiple continents in one trip? GoDataTravel offers worldwide plans covering 190+ countries. One purchase, one activation — you're connected everywhere.
🚀 Ready to travel connected?
Discover our eSIM plans from $2.95 for 190+ countries. Instant activation, no commitment.
View eSIM plans