How to tell which iPhone you have
The easiest way to identify an iPhone used to be to check the ‘A’ model number on the back, and in this article we list the A numbers for every iPhone. But Apple doesn’t print A numbers any more, so for those with recent models, or who find the number too small to read, there are other methods: you can check in Settings, or look at the phone’s shape and external features and make an identification using the descriptions and photos below.
If you’re struggling to identify one of your other Apple devices, we also have guides to finding which iPad you have and which Mac you have.
Look in Settings for the model name and number
The simplest method these days is to look in Settings.
- Open the Settings app, and go to General > About.
- In the top bank of entries you’ll see Model Name, with iPhone XS or whatever next to it.
- This page also tells you the device’s capacity, which is listed a little further down.
Some older iPhones won’t show the iPhone model name here. For example, this iPhone 6s shows a combination letters and numbers instead; that is the model number and you can use this to identify the iPhone.
You’ll also see the Model Number below Model Name on newer iPhones. By default Settings shows the M number (also known as the SKU – and if you’ve got a replacement model it’ll probably start with an N), but you can tap it to display the A number instead, which can also be used to identify which iPhone model you have.
The M number/N number/SKU itself is quite handy, however, because it provides a more precise identification than the A number or even the Model Name (it specifies storage capacity and even colour). There’s a huge number of possible M numbers – far more than we can list here. Check the iPhone Wiki for a full list.
Settings, as we can see, is extremely helpful when it comes to identifying an iPhone. But it has the slight down side of requiring that your device be functional and accessible to you; if you’re trying to identify a bricked device or one you can’t unlock, this won’t be much use and you’d better move on to the visual identification chart in the next section.
Look on the back for the A number
Older iPhones will have an identification number printed on the back. This is a small number that starts with the letter A, and labelled ‘Model’. It’ll be something like “A1203” or “A1634”.
When we say “small number” we really do mean small, and you may find it hard to read the number with the naked eye. A magnifying glass will help if you’ve got one!
However, the iPhone 8 and later do not have this number printed on the back. If you can’t find anything here you at least know that your iPhone is an iPhone 8 or later.
For simplicity’s sake we’ll call this the A number, as opposed to the M number found in Settings discussed above, and the much longer IMEI identifying number, which is unique to your individual handset.
Once you’ve got the A number, check it against this list to see which model you’ve got. (Note that there are multiple A numbers for some iPhones. These refer to versions for different territories, network standards and so on. And even the recent iPhones have A numbers – they’re just not easy to find.)
- A1203: Original iPhone
- A1241: iPhone 3G
- A1303: iPhone 3GS
- A1332, A1349: iPhone 4
- A1387: iPhone 4S
- A1428, A1429: iPhone 5
- A1456, A1507, A1526, A1529 or A1532: iPhone 5c
- A1453, A1457, A1528, A1530 or A1533: iPhone 5s
- A1549, A1586 or A1589: iPhone 6
- A1522, A1524 or A1593: iPhone 6 Plus
- A1633 or A1688: iPhone 6s
- A1634 or A1687: iPhone 6s Plus
- A1723, A1662 or A1724: iPhone SE
- A1660, A1778 or A1779: iPhone 7
- A1661, A1784 or A1785: iPhone 7 Plus
- A1863, A1905 or A1906: iPhone 8
- A1864, A1897 or A1898: iPhone 8 Plus
- A1865, A1901 or A1902: iPhone X
- A1984, A2105, A2106 or A2108: iPhone XR
- A1920, A2097, A2098 or A2100: iPhone XS
- A1921, A2101, A2102 or A2104: iPhone XS Max
- A2111, A2223 or A2221: iPhone 11
- A2160, A2217 or A2215: iPhone 11 Pro
- A2161, A2220 or A2218: iPhone 11 Pro Max