Hi I am using this iphone 5S from last more then one year, till I am totally satisfy with entire interface.about os software now the time I am use Ios 10.2, this very easily update from store. Iphone is the world wise brand they help to improve personality. costing wise I am not satisfy its was very costly but now the time apple reduce the price for Indian customers. Power backup is good. in short this is full package of nice phone.
100 marks to this product.