Each new version of iOS and iPadOS leaves certain iPhone and iPad models behind. Your older device may be unable to run particular features of the updated operating system, or it might not be able to install the update at all. But what if you’re unsure which model you own or whether it supports the latest software?

The key is to find the model name and number, then match it to the correct generation of device. It may sound a bit daunting, but once you know where to look, it’s straightforward. If you’re buying a second-hand device, the model number will also indicate the region it was manufactured for and confirm whether it’s compatible with your mobile network. Here’s how to identify your Apple device and locate the model number.

The easiest way to locate the model name and number of your iPhone is by going to Settings > General > About. The Model Name is listed in the top section along with Name, Software Version, Model Number, and Serial Number.

Your iPhone has two model numbers—an 8-digit code that starts with the letter M and a 5-digit code that starts with the letter A. Tap Model Number to change the number that you’re viewing. Here’s what they mean in this example:

• MYMP3LL/A: The 8-digit code refers to a specific colour, storage, carrier, and other customizable options for an iPhone. For example, a white iPhone 16 with 128GB of storage from Verizon will have a different 8-digit model number than a black iPhone 16 with 256GB of storage from T-Mobile.

• A3083: This 5-digit code refers to the general model. For example, all iPhone 16 models have the same five-digit code regardless of colour, storage, and other options. Models will have different codes based on the country or region in which they are sold.

If your iPhone has a SIM card, you can also find the model number via the SIM slot, though you’ll need especially sharp eyesight and a bright light to find it. Remove the SIM tray and look in the slot on the phone. The model number should be on the upper side of the tray (the side with the display).

For iPhone 14 and above, look to the phone’s charger port. The model number is printed inside, on the side with the display. iPhone models older than the iPhone 8 have the five-digit model number listed on the back of the phone amid all the fine print.