Iphone 4s was launched few years ago .and till that time it is seeling in the market with great demand . it has a small screen but has a good back and front camera .with the update of ios 9.3.5 the device works even better .the ui of the phone attracts many of us so it is now for the users who cant spent lot of money on other variants of iphone and have the desire to purchase it .i think I dont have to say much about this variant because apple is made to think different .