I purchased this phone back in 2013.still its working as good as new. The sound of phone is nice, it got speakers at the bottom of the phone, works great. The sound of the headphone is best in its class. The new IOS 10 is amazing and is very easy to use. The phone is not slim as new phone launched in 2017 but is light weight and durable. The phone comes with 1 gb ram and very nice processor. The storage spd ace vary from the model you purchase i.e 16gb, 32gb, 64 gb. The mobile is highly reliable and value for money.
Pro:-
Apple brand
IOS 10
Camera quality
Touch ID
HD display
Cons:-
Small size screen
VOLTE not availabe though phone is 4G
Battery life
Highly priced