Galaxy S4 in the S Series is the Best for Teens
It is Fast
It has Awesome Camera with Slow Mo better than Others
Its Camera has Many Feathers it is the 1st in S Series to have many Awesome Camera Feathers HDR, Panorama , Beauty Shot , Burst Shot etc
It has an Amazing Display
Durable Phone with Cheap Prize what more you want from a Phone
I think this has more than what we actually use in day today life with good front facing camera too for Video Calling
Decent Battery Life and Less Hanging