Ipohne 6s is still the king of the market. Do not hesitate to buy this phone.It is very stable and durable. IOS is so smooth. I will not replace my 6S with Iphone 7. Iphone 7 has many problems exploding battery, water leakage after using it sometime and performance problems.
So Iphone 6S is the best!
Good battery I charge my 6s at 98% in morning and it easily gives me 6 hrs if I am using my phone all the time I dnt play games much if ur a hardcore gamer u will need a charger in 5 hrs for sure but a decent use will give u 6 to 8 hrs easily which is not bad at all