I would really like to have a phone longer than 2 years. Given the maturity of the hardware market, a 3-5 year lifespan seems reasonable. That probably means:

I would really like to have a phone longer than 2 years. Given the maturity of the hardware market, a 3-5 year lifespan seems reasonable. That probably means: - waterproof and dustproof - shock resistant for drops from waist height to a hard surface - replaceable battery - stronger (heavier) frame - a bezel around the screen that comes out a millimeter or two to protect it - a back not made of glass That sounds like a phone worth paying $700 for.