Some examples, none of which may be relative to you: You can get waterproof housings for the gopro. You can shoot hours of video on a single SD card and battery charge, and it has batteries and memory cards that can be swapped out. The gopro is much less fragile, mine has been through... a lot. The gopro has a wide angle mode. The gopro can be mounted remotely and controlled from your phone (or iPad). Losing or damaging a gopro doesn't have the same impact on your personal life as losing your only phone. The gopro is easier to repair.