If you designed your own smartphone, what specs would matter?

So many options... what really matters if you were the engineer
    This is a required question
    This is a required question
    This is a required question
    This is a required question
    This is a required question
    This is a required question
    This is a required question
    This is a required question
    This is a required question
    This is a required question
Request edit access