The main defects of the Black Hero 3+ have not really been corrected in this version 4. The menu screen is still not lit, autonomy is very short. On the upside, the quality of pictures / videos is superior. The camera is excellent photos when lighting conditions are good, 1080p recording, and 2.7 K. 4k are also very good and 4k video (when you have adapted for the screen) offer good rendering.
Be careful though to have a good config PC to replay / climbing 4k videos because you have good performance that are difficult to reach today on particular machines.
Fast shipping and a thank you Amazon for use on demand on the Gopro coupon at the last minute before shipping.