I gotta tell ya the damn thing is easy to use. USB to charge and hook up to download or just pop out the micro sd card, not included. It's got a screen on it, my GoPros don't. No remotes or the like. Bare bones. Inexpensive ,cheap, plastic construction.
Oh the original question about an hour on HD.
The quality is what it is. Great on bicycles and inshore fishing. Ok for faster stuff. I find the waterproof case causes some wobble like distortion.
You get what you pay for. I've lost a few GoPros over the years and at almost 300.00 a pop now it hurts. So for non critical stuff it's ok.
Be Big,
AMAC