Iphone 6 is a very great phone.
its the slimmest iphone so far and also the lightest it comes with poweful apple a8 chip
and m8 motion processor.
it have the best in class selfie camera.
and the prices are quiet amazing
iphone 6 is the most worthy iphone till date.
it comes with 16gb option which is a very good purchase.
it is also upgradeable to ios 10 which is latest ios from apple.the best colour variant in this iphone is space grey according to me but is it up to you