As travel becomes more digital and mobile devices evolve, eSIM technology is rapidly changing the way we connect. But despite its growing presence, many people still have questions about how eSIMs work, their benefits, potential downsides, and whether it’s the right choice for them.
In this post, we’re answering the most frequently asked questions about eSIMs in one easy-to-understand guide. Let’s dive in!
What is the eSIM?
An eSIM (embedded SIM) is a digital SIM card, essentially a built-in chip in your device, that replaces the need for a physical SIM card. It works like a regular SIM card by letting your phone join a mobile network so you can talk, text, and go online. Unlike a physical SIM, it’s not a separate card that you can remove and insert into another device.
What is the downside of eSIM?
While eSIMs offer convenience, they do have a few limitations:
- Carrier limitations: Not all mobile carriers support eSIM at the moment.
- Switching can be tricky: Changing phones may require reactivating the eSIM, which isn’t always seamless.
- No physical removal: If your phone is lost or stolen, you can’t just remove the SIM to prevent misuse.
- Fewer options when traveling: Some budget-friendly or local carriers may not yet offer eSIM compatibility.
Does eSIM give you a phone number?
Some eSIMs give you a phone number, but not all of them do. If the eSIM is just for data, like when you’re traveling and only need internet, it usually won’t come with a number. But other eSIMs, especially ones for calling and texting or for use in different countries, often include a phone number.
How to buy an eSIM card?
You can buy eSIM plans from:
- eSIM service providers
- Online marketplaces (official apps or websites)
Once you purchase it, you’ll get steps to set it up and a QR code to activate the eSIM.
How do I generate an eSIM?
To get an eSIM, you usually need to ask your phone company. They may require a unique number from your device, like the EID or IMEI. Then, you may need to confirm your request by getting a text message, a phone call, or by scanning a QR code they give you. After that, the eSIM will be set up and ready to use instead of your regular SIM card.
Why is eSIM not popular?
eSIMs aren’t used as much as regular SIM cards because of a few reasons—some people worry about safety, others aren’t ready to switch, and not all phones or networks work with them yet. Even though eSIMs let you set things up without a store visit and use more than one plan, they’re still less common because of rules in some countries, setup requirements, and the feeling that users have less control over their SIM.
Does eSIM drain battery?
No, eSIM does not drain more battery than a physical SIM. In fact, for most users, battery usage is virtually the same.
Why would someone need an eSIM?
eSIMs are perfect for:
- Frequent travelers who need local data plans abroad
- People who want dual numbers (e.g., personal + work)
- Users who like flexibility in switching carriers without visiting a store
- Saving space in devices like smartwatches or ultra-slim phones
Should I take out my eSIM from my old phone?
Yes, especially if you’re switching to a new device or selling your old one. Deleting the eSIM ensures your data and number are secure.
Is eSIM safe for banking?
Absolutely. eSIM is as secure as, if not more secure than, a physical SIM. It uses carrier-level encryption, and since it’s embedded, it’s less prone to physical SIM swapping fraud.
Do I keep my number with an eSIM?
Yes. When you switch to an eSIM, you can port or keep your existing number – just like with a traditional SIM.
Will I receive calls on eSIM?
Yes, an eSIM works the same as a regular SIM, so you can make calls, send messages, and use data like normal.
How much is an eSIM?
The cost varies:
- Some travel eSIMs cost as little as $10 to $20.
- Carriers may offer free eSIM activation, or charge a small fee ($0–$10). Always check with the provider.
Can I do eSIM by myself?
Yes! Most smartphones let you scan a QR code or manually enter eSIM details under settings. No store visit required.
How do I convert my number to an eSIM?
Get in touch with your current carrier and ask for an eSIM with your current number. They’ll give you an activation code or QR code to complete the switch on your phone.
What are the benefits of eSIM?
- Convenient switching between networks
- No physical card needed
- Ideal for dual SIM setups
- Great for international travel
- Environmentally friendly
- Less prone to loss or theft
Does eSIM give you a different number?
No, getting an eSIM doesn’t mean you’ll get a new phone number. If you stay with the same mobile company and plan, your number stays the same.
Can I use 2 numbers with eSIM?
Yes! Many modern phones support dual SIM mode – one physical SIM and one eSIM, or even dual eSIMs – letting you use two numbers on one device.
Conclusion
eSIM technology is shaping the future of mobile connectivity with its flexibility, security, and ease of use. Whether you’re a frequent traveler, a tech enthusiast, or just looking for a more convenient way to manage your phone service, eSIM might be the upgrade you didn’t know you needed.
If you’re considering making the switch, now’s the time to explore your options and enjoy the freedom that comes with going digital.
