The latest internal documents coming out of the Samsung/Apple trial show some candid insight into Apple's analysis of the future of the smartphone market.
The documents posted by Re/code include an Apple slide deck from April, 2013 for 2014 planning. The document includes graphs showing that Apple's growth rates are slowing quarter after quarter. The main reason for the decline amongst consumers? Consumers want less expensive and larger screen smartphones:
Article Link: Apple Acknowledges Consumers Want Larger and Cheaper Phones