Switching · 5 min read
What is an eSIM? How it works and how to set one up
What is an eSIM? A SIM built into your phone: no post, no fiddly tray. Check your phone works with one and set it up in minutes.
What is an eSIM? It's a SIM built into your phone, so nothing needs to come in the post. Remember wrestling a paperclip into a tiny tray, then dropping the SIM on the carpet? An eSIM ends all that.
The short answer: an eSIM is a digital SIM built into your phone. Instead of posting you a plastic card, your network sends you the details, usually as a QR code, and your phone downloads them. It does exactly the same job as a normal SIM: same number, same plan, same signal.
Kindly offers both. Choose eSIM when you order and you won't need to wait for the post.
What is an eSIM, exactly?
The "e" stands for embedded. There's a small chip inside your phone that can hold SIM details, a bit like a blank SIM that's already fitted. When you set up an eSIM, your phone downloads a profile that tells it which network to use and which number is yours.
Nothing about your service changes. Calls, texts, data, roaming, keeping your number: it all works the same as a plastic SIM.
Does my phone support eSIM?
Most phones from the last few years do, including iPhone XS, XR and every iPhone since, and many recent Android phones. To check:
- iPhone: Settings, then Mobile Service (or Mobile Data). If you see "Add eSIM", you're good.
- Android: Settings, then Network or Connections, then SIMs. Look for an option to add an eSIM or "download a SIM". The exact words vary by phone.
Your phone also needs to be unlocked, meaning it isn't tied to another network. Most phones bought in recent years are. If you're not sure, ask the network you bought it from.
eSIM or physical SIM: which should I choose?
| eSIM | Physical SIM | |
|---|---|---|
| How you get it | Downloaded to your phone | Posted to you |
| Set-up | Scan a code, a few minutes | Pop it in the tray |
| Can it get lost in the post? | No | Rarely, but yes |
| Moving to a new phone | Transfer it on the phone or ask us for a new one | Swap the card across |
| Works in older phones | Only phones that support eSIM | Almost any phone |
| Two numbers on one phone | Easy: most phones hold an eSIM and a physical SIM, or several eSIMs | Needs a dual-SIM tray |
If your phone supports it, eSIM is usually the easier option. If you swap phones a lot, or you're setting up an older handset for a child or a colleague, a physical SIM may be simpler.
How do I set up a Kindly eSIM?
- Connect to Wi-Fi. Your phone needs an internet connection to download the eSIM.
- Find your eSIM code. Your eSIM arrives very quickly after you order. We'll email you a QR code, and you'll also find it in your Kindly account. On a business or charity account, eSIMs are emailed to your account admin to pass on.
- Scan it. On an iPhone, open the Camera and point it at the QR code, or go to Settings, Mobile Service, Add eSIM. On Android, go to Settings, then Network or Connections, then SIMs, and add an eSIM.
- Follow the prompts. Give the line a name you'll recognise, like "Kindly". If you have more than one SIM, choose which to use for calls and data.
- Restart your phone if it doesn't connect within a few minutes.
Scanning the QR code on the same phone you're installing it on is tricky, so open it on another screen (a laptop, tablet or another phone) first.
Tip: don't delete the eSIM unless you mean to. Removing it from your phone is like cutting up a SIM card. You'd need a new one from us to get it back.
Can I keep my number with an eSIM?
Yes. Switching works exactly the same as with a physical SIM: text PAC to 65075, add the code in your Kindly account after ordering, install the eSIM, then pick your switch date. The eSIM isn't active until your number has moved. Our guide to switching network and keeping your number walks through it.
What happens when I change phone?
You have two options.
- Transfer it. Many newer phones can move an eSIM from your old phone to your new one during set-up. On iPhone this is called eSIM Quick Transfer, and both phones need to be nearby with Bluetooth on.
- Ask us for a new one. Get in touch and we'll send you a new eSIM. There's no charge.
Is an eSIM good for work phones?
Often, yes. There's nothing to post to a new starter working from home, and nothing to lose. For businesses and charities with several SIMs, an account owner or admin manages every line from one Kindly account, whether they're eSIMs or physical SIMs.
Ready to go? Choose eSIM when you pick your plan: personal, business or charity. Not sure which plan? Bill Check will tell you in a couple of minutes.
FAQ
What is an eSIM?
A digital SIM built into your phone. You download your network's details instead of inserting a plastic card, and it works exactly the same.
Does Kindly offer eSIM?
Yes. You can choose an eSIM or a physical SIM when you order.
Do I need Wi-Fi to set up an eSIM?
Usually, yes. Your phone needs an internet connection to download the eSIM profile.
Can I have an eSIM and a physical SIM on the same phone?
Yes, on most dual-SIM phones. It's a handy way to keep a work and personal number on one handset.
What if I delete my eSIM by mistake?
Get in touch and we'll send you a new one. Your number and plan stay the same.
Sources
- Apple Support: Set up eSIM on iPhone (supported models from iPhone XS/XR, QR code and carrier set-up, Wi-Fi requirement, eSIM Quick Transfer)
- Ofcom: Switching mobile phone provider (PAC codes)
