What is an eSIM and how does it work?
An eSIM is a digital version of a physical SIM card. It's already integrated into your device – whether a cell phone, tablet, or smartwatch.
So, how does an eSIM work?
eSIMs work in the same way as traditional SIM cards. Once activated, they connect you to a local mobile network. This lets you use mobile data, make calls, and send texts.
To activate an eSIM, you need to scan a QR code or download a profile from your provider. After following a few simple on-screen steps, your eSIM will be ready for use.
Most eSIM-compatible devices let you store several eSIM profiles. This makes a digital SIM card a great option for travel, as you can easily buy an eSIM for international travel and switch between home and international networks whenever you need to.
eSIM vs. SIM cards: What's the difference?
The main difference between an eSIM and a SIM card is that an eSIM exists in your device. It is invisible and doesn't need to be inserted into your SIM card slot like a physical SIM. Here's a side-by-side comparison:
| Feature | Physical SIM Card | eSIM |
|---|---|---|
| Shape | Small removable plastic chip | Built-in chip (not visible) |
| Setup | Insert manually into SIM slot | Activate by QR code or app |
| Switching operator | Swap out SIM card | Switch in settings instantly |
| Number of plans supported | Typically one (or two) at a time | Store multiple, use one at a time |
| Durability | Can be lost or damaged | Can't be lost or damaged |
| Security | Easy to remove or misuse | Harder to remove or misuse |
| Travel convenience | Must buy and insert local SIM or use expensive roaming | Buy and activate travel eSIM online instantly |
eSIMs are easier to use, more flexible, and faster than physical SIM cards. As a result, we are seeing modern smartphones (like the iPhone 14 and later) being eSIM-compatible only.
7 Reasons You Should Use an eSIM
An eSIM makes your life easier, both for everyday use and for international travel. Here are seven key advantages:
- Instant activation: You can buy an eSIM online, have it delivered digitally, and activate it within minutes.
- Easy switching: It's simple to switch eSIM carriers or profiles from your device settings.
- More secure: An eSIM can't be lost, damaged, or stolen like a physical SIM card.
- Eco-friendly: A digital SIM card eliminates plastic waste from traditional SIM cards.
- Cost-effective: eSIM cards are a much cheaper option than international roaming fees.
- Travel-ready: You can buy and install an eSIM for international travel at home, before activating it in minutes once you land.
- Multiple destinations: Some eSIMs cover multiple destinations under one plan, perfect for travelers visiting several countries.
Which phones use eSIM?
The majority of new phones released nowadays support eSIMs. This includes:
Apple
iPhone XR and later models
Samsung
Samsung Galaxy S20 and later models
Google Pixel 3 and later models
To ensure your phone supports eSIM technology, check your device's specifications or contact your device manufacturer.
What other devices are eSIM-compatible?
Mobile phones aren't the only devices that have an embedded SIM. Many tablets, smartwatches, and laptops have this capability, enabling you to connect your device to an eSIM data plan instead of relying on WiFi hotspots when you're on the go.
How to get an eSIM
Getting an eSIM is simple and can be done entirely online. Here's how:
Check device compatibility
Ensure your device supports eSIM technology
Choose your destination
Browse our destinations and select the country or region you're traveling to
Select your plan
Choose the data plan that fits your needs and duration
Purchase and install
Complete your purchase and receive your eSIM QR code instantly via email
Activate when you arrive
Scan the QR code and activate your eSIM once you land at your destination
How to activate an eSIM
Once you've purchased your eSIM and received the QR code, activating it is super simple. No matter which mobile device you're on, the entire process shouldn't take more than a few minutes.
How to activate an eSIM on iPhone
- Go to Settings
- Tap Cellular (or Mobile Service on EU devices)
- Locate and tap the Add eSIM button
- Choose the Use QR Code option
- Scan your QR code and follow the prompts to complete the setup
How to activate an eSIM on Android
- Go to Settings
- Open the Connections menu
- Locate and tap the SIM Manager option
- Tap Add eSIM, then Scan QR code
- Scan your QR code and follow the prompts to complete the setup
After completing the setup, you'll have a mobile network connection in your destination country almost instantly.
Frequently Asked Questions
Can I switch back and forth between SIM and eSIM?
Yes, if your device is both SIM and eSIM-compatible. You can switch between a physical SIM and eSIM card directly in settings. This makes it possible to have both a physical SIM for your home mobile plan and a travel eSIM, for example.
Some older devices are SIM-only, while many newer ones are eSIM-only, so first check your device's capabilities.
What happens to my physical SIM after installing an eSIM?
Your physical SIM will still work after installing an eSIM, unless it has been directly deactivated. Whether removed from your device or still in your SIM card slot, your physical SIM will remain idle until it is reselected as your active plan in the device settings.
How much does an eSIM cost?
eSIMs are free. However, you'll need to buy a data plan to use them. The price of an eSIM plan depends on the data allowance, validity period, and destination. At Simful, our competitive pricing ensures you get the best value for your travel connectivity needs.
Does an eSIM change your phone number?
No, with Simful your eSIM will not change your phone number. You can keep using your existing number for calls and texts while using the eSIM for data connectivity.
Do eSIMs have a better signal?
No. Your signal strength depends on the mobile network you are connected to. Both physical and digital SIM cards will connect to local networks, which dictates the signal strength. Simful partners with reliable local carriers to ensure you get the best possible coverage.
Get Your eSIM Today
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