* Comes with external mic, which is very usable for me to record while riding motorcycle
* Comes with many accessories that are of good quality to add to the camera. The camera and the waterproof case are built pretty strong.
* 4K @ 30fps looks pretty good, it's enough for an action camera, with EIS resolution reduced to 2.7
K 30fps but its ok for me.
* Synchronization with mobile using app over WIFI.
* The remote comes with it is awesome, I can click a pic or video while riding motorcycle.
Come on! Don't even look for it.
What more can you expect from a $50 cam.