Pros:-
1) Excellent performance with zero lag.
2) Awesome quality pictures from the cameras(Front and rear).
3) Good battery backup. Almost one day with normal usage.
4) Lighting charging speed.
5) Some excellent inbuilt Apps like Heart, Compass.
6) Siri makes the work easier to a large extent.
7) you will get numerous option to cover up your phone.
Cons:-
1) This problem is specific to all Apple devices. If damaged can’t be repaired it has to be replaced.
2) I have faced network coverage related issues with Iphone 6. Same network same place iPhone doesn’t have network whereas other devices have network.
3) Can’t store songs to listen have to use apps(hungama, gaana etc) or Apple’s Music store.
4) At times it is difficult to find chargers when you have forgotten your.