Price performance is great. The operation is at the beginning a bit strange. Description you have to get from the Internet. But otherwise the camera is almost like the GOPRO. Very lots of accessories for the low price. Is definitely an alternative to the GOPRO. The only thing that is not quite so good are the buttons in the waterproof case. They are very stiff. Very good is the camera via WIFI to operate with one of the SJCAM-APP.
