the camera is very good, accessories are made in very good quality. camera's microphone is very good, i think its not necessary external microphone. I DIDN'T LIKE IMAGE STABILIZATION. when you run or move fast video is very shaky. 4k is not good to, by my opinion it's not 4K. picture is not too high quality. if you are going to record long videos or you like long hikings you need extra batteries, 2 batteries is not enough, they do not have much energy. But for its price i think this camera is very good, and if you have big demands you should buy expensive cameras. the buyer is very communicative, he answered all my questions.
touch screen is not sensitive, you have to press hard or twice, it's better to control the camera via phone. video 1080 is not too clean as we have seen.
Really good packaging, all the acessories arrived in perfect shape, arrived after 9 days, the fastest so far.