I bought this camera as an experiment before I bought something better for use on my bike helmet and for £10 it was a bargain.
It would cost more for the accessories that came with it than the total cost if bought separately.
For the money it works well and even has a 1080 setting but it is not 'high definition' (HD).
As expected it did not come with an SD card but they are very cheap these days and I got a 32G card for £5 that will store 2 hrs 35 mins in the 'HD' settings of 1080 and 720 and 5hrs 40 mins in 480. The battery lasted around 2hrs of continuous recording on the 720 setting which is pretty good for this type of camera.
The sound quality is surprisingly good but obviously reduced when in the waterproof housing.
Overall this is not a HD camera but works well as long as you understand it's limitations and is a bargain if you want something to play around with in order to decide if you want to spend a lot more on something more professional later on.