Updated on 13 November 2026
An eSIM is a digital SIM built into your iPhone. Every iPhone from the XS and XR onwards supports eSIM and dual SIM: two numbers in one phone, for example for work and personal use or a data plan abroad. Here is what each iPhone can do and how to set up or transfer an eSIM.
The short answer
- iPhone XS, XR and later: dual SIM with a nano-SIM plus an eSIM.
- iPhone 13 and later: also two eSIMs active at the same time.
- iPhone Air: has no SIM tray and works with eSIM only.
- SIM-free: all iPhones at iUsed work with any carrier.
SIM or eSIM: what's the difference?
A nano-SIM is a small card you slide into the tray on the side. An eSIM is built into the phone; your carrier adds your plan digitally, via a QR code, the carrier's app or during transfer. You can store several eSIMs and use two at once.
Setting up an eSIM
- Ask your carrier for an eSIM. Most Dutch and Belgian carriers offer it, often free or for a small fee.
- Go to Settings > Mobile Service > Add eSIM.
- Scan the QR code or choose your carrier's option and follow the steps.
- Label your lines, for example Personal and Work, and choose the default line for calls and data.
Transferring your eSIM to a new iPhone
When you set up a new iPhone with Quick Start, you can bring your eSIM along if your carrier supports it. Later you can use Settings > Mobile Service > Transfer eSIM (or Add eSIM > Transfer from Nearby iPhone). If that doesn't work, your carrier can reissue the eSIM. See also Transfer to your new iPhone.
Handy: dual SIM when travelling
Keep your own number active for texts and calls, and use an eSIM with a local data plan to avoid high roaming costs outside the EU.
Selling or trading in?
Delete or transfer your eSIM before erasing your old iPhone; see Erase your iPhone before selling or trading it in.
Frequently asked questions
Does a refurbished iPhone work with eSIM?
Yes. Every refurbished iPhone at iUsed is SIM-free and works with a nano-SIM or eSIM from any carrier (the iPhone Air with eSIM only).
Can I convert a physical SIM into an eSIM?
Yes, with most carriers. Often directly on your iPhone via Settings > Mobile Service; otherwise via your carrier's app or customer service.
Does the Apple Watch work with eSIM?
Yes, the Apple Watch with 4G (LTE) always uses an eSIM, linked to your iPhone plan.