Think you're a smartphone expert? Let's take that to the test! See if you can recognise the handsets in the pictures from a cropped close-up!
Did you manage to find them all? Congratulations! We bet there are still some things you don't know about phones... Why not take a look at our 5 favourite HTC 10 features? Or if you're more of a Samsung fan, here are 5 things we bet you didn't know about the Galaxy S7.