The problem with the Fire Phone isn't the hardware, the hardware is great, the problem is Fire OS. No one wants a half baked Android fork and a walled garden. My wife purchased the Fire Phone during their last promotion, and within 15 minutes she was reflashing to CyanogenMod.

The phone would have been successful if they had simply run stock Android, preloaded their own bloatware like Samsung does, and perhaps a dedicated button for Firefly, which is a pretty neat app. The reason the Fire Phone failed was Bezos is an egotistical asshole who doesn't care what the customer wants.