Apple company marketing strategy
i'm satisfied with my iphone, so i have no advice.
design a better battery because the battery is depleting quickly.
to make regular cables (they break too quickly)
improve durability
the only thing i can say about the changes for apple products is that my iphone is bigger and uncomfortable to carry even without a case.
i would like to change the rule about apple id.
none
i want it to be faster.
price
it's impossible, the iphone 6s is ideal.