Apple products are know to the best in its segment. the iPhone 6s is surely the only smartphone one should go for. It has great speakers with 4g voice call. It is currently running on ios10 which makes it easy to use for anyone who is new to iPhone. it has a sleek design and is light weight. Though it looks similar to the iPhone 6 it is totally different. It has a better battery with followed by better camera. The main difference is the 3d touch option. it lets you access applications easily by just touching the app icon with slight pressure instead of opening the app and searching for options. Even though it is high priced compared to other smartphones but it is totally worth the money. IPhone 6s can be easily used for 2year and above without any problems.