GoPro has a similar problem. Outside of special circumstances most smartphone cameras are now good enough for most consumer needs and will only get better. I think they could survive if they target the extreme sports type niche but otherwise I don't see them achieving escape velocity.

Both could be good acquisition targets a la Withings and Nokia. But the number of possible buyers is limited. Microsoft is possibly the only one that comes to mind that doesn't have anything in either space although given the failure of Windows Phone I'm not sure they have the desire to try something similar in a different market.