The reason: the two phones look different. For designers however, things can be a little tricky.
For mobile app developers, the two phone versions are precisely the same, as they support the same hardware features. Consequently, when Apple decided to launch iPhone 5s last year, they also rolled out a relatively cheaper version of their phone, named iPhone 5c. However, as you are aware, Apple has offered some product adaptation in response to the demands of price-sensitive consumer segments. Despite Samsung’s aggressive market penetration strategies, Apple remains an unmistakable force in the hand-held digital devices market.