Device Diff

eSIM guide: switching phones, selling and buying used

The steps Apple, Google and Samsung give (and a carrier's, where the makers have none), each with a link to the page it comes from. Menu names can change with software updates.

Your carrier decides.

Every eSIM transfer method on this page works only if your carrier supports it. If an option doesn't appear, contact your carrier.

Deleting an eSIM does not cancel your plan.

Apple: "If you want to cancel your cellular plan, you still need to contact your carrier to cancel the plan." Samsung says removing a plan does not affect your subscription with the carrier.

Source: AppleSource: Samsung

What the words mean

eSIM
An eSIM is an industry-standard digital SIM built into your iPhone, eliminating the need for a physical SIM card. (Apple)

Source: Apple

Physical SIM (nano-SIM)
A removable card that goes in the SIM tray. Samsung calls the nano-SIM the smallest SIM size, used by most new phones.

Source: Samsung

eSIM-only
The phone has no SIM tray. Apple: "In some countries and regions, you can only activate certain iPhone and iPad models with an eSIM."

Source: Apple

EID
The eSIM identification number. It identifies the eSIM in your device. Device Diff never asks for it.

Source: Google

Dual SIM
Apple: "Dual SIM enables you to have two active phone numbers or SIMs to make and receive calls and text messages."

Source: Apple

DSDS (Dual SIM Dual Standby)
Both lines stay ready for calls and texts. Apple notes that the iPhone uses one cellular data network at a time.

Source: Apple

Dual eSIM
Two eSIMs used as your two lines, with no physical SIM. Apple: iPhone 13 models and later support Dual SIM with two eSIMs.

Source: Apple

How many eSIMs a phone holds

Phones that take eSIM only

These have no slot for a SIM card. Check that your carrier supports eSIM before you buy one.

Moving your eSIM

Before you sell or trade in

Buying a used or foreign phone

If something goes wrong

Your numbers stay with you

This page never asks for your EID, IMEI or phone number. Need to find the IMEI? Where Apple, Google and Samsung say it is

Checked against the makers' and carriers' pages on October 23, 2026.