The latest and the most advanced phone by Apple is iPhone 6s.
It has various versions like 16gb, 32gb, 64gb, and 128gb but all of them comes with 2gb of ram. It packs the same design language of iPhone6 but with the new Rose Gold colour. It has a 12mp camera of f/2.2 which is pretty good but sucks at low lighting a bit.
But it has a more reinforced aluminium chassey and is thus there is no bendgate.
But to get all this you will have to pay a lot but now the price has decreased.
Its fingerprint sensor is really good and also it is very fast and fluid. It shows no lag what so ever. It can play any game without any issues. It excells at everything but it is really pricy and is really overpriced compared what u get( ram only 2gb whereas all companies now gives at least 3 gbs at that price) .