What is an eSIM profile?
An eSIM profile is the data that turns the chip in your phone into a working SIM. Here is what it contains, how many a phone can hold, and why deleting one is usually permanent.
An eSIM profile is the thing you actually download when you install an eSIM. The chip is already in the phone and was there when you bought it; the profile is what turns that empty chip into a SIM that a network recognises.
What is inside one
A profile is a package of data written into the secure chip. It holds:
- the identity of the SIM, including its ICCID
- the keys that let the network verify this SIM is genuine, which never leave the chip and cannot be read back out
- the operator it belongs to, and which networks it is allowed to use
- settings the line needs to work, including the APN for data
That list is why you cannot copy an eSIM between phones by taking a screenshot of the QR code you already used. The keys are the point, and they are written once, into one chip.
How many a phone can hold
Most modern phones store several profiles at once, often between five and ten, but can only have one or two active at the same time.
That is the distinction people trip over. Installed and active are not the same thing. You can keep last year's travel eSIM sitting dormant in Settings and switch it on when you go back, as long as its data has not expired.
On iPhone the list is in Settings, Cellular, and each profile can be turned on or off individually. On Android look for SIM manager or SIMs, depending on the manufacturer.
Why deleting one is serious
Removing a profile from the phone usually destroys it. The keys are gone, and the same QR code will not install it again, because an activation code is normally good for one install only.
If the eSIM still has data or validity left, that data is lost with it. Some providers can reissue a profile, many cannot. Before deleting anything, the safe order is: turn the line off first, confirm that is what you wanted, and only delete when you are sure you are finished with it.
Switching phones is the moment this bites. An eSIM is not automatically carried over by a backup restore. Some newer phones can transfer a profile directly between devices, and some operators allow a reissue, but neither is guaranteed, so check before you wipe the old handset.
Quick answers
Is the profile the same as the QR code?
No. The QR code is an activation code, which is a set of instructions telling your phone where to fetch the profile. The profile is what arrives afterwards and stays on the chip.
Can I move an eSIM profile to a new phone?
Sometimes. Recent iPhones and some Android phones can transfer a profile device to device, and some providers will reissue one on request. There is no universal method, so treat a transfer as something to confirm before you need it.
How many eSIMs can I install?
Storage is usually five to ten profiles, while only one or two can be active at once. The exact number depends on the phone.
If I delete an eSIM by mistake, can I get it back?
Often not. The activation code is normally single use, so the only route is asking the provider to issue a new profile, and whether they can depends on the provider.