The "Face Tracking Tripod" or the tracking phone holder from K&F Concept is a very special device... Thanks to the simple clamping mechanism, you only have to insert the smartphone or tablet (see product description for maximum dimensions) and turn the handle at the back until it stands firm enough. The tracking phone holder is then activated with a button and can be controlled by gestures. The holder then simply follows a person and you can simply take video recordings of yourself with movement, also practical for video calls etc. I find it practical that you don't need any app or settings on your smartphone or tablet and it all works directly. Very easy and the tracking seems reliable to me so far. The control gestures were mostly recognized immediately as long as it wasn't too dark. Anchoring: You can set up the tracking phone holder on a flat surface or, thanks to the tripod thread on the underside, screw it onto table tripods or really large tripods if you want to place it flexibly in the room. Charging: A modern charging connection type USB C is available! Good. The supplied charging cable still has the well-known standard USB plug type A at the other end. Conclusion: If you are looking for the simplest possible solution for filming yourself while you are moving, you will find an interesting option here. Above all, it can be used immediately without installing an app and without any setup. You just have to remember the 2 gestures and you're good to go... The tracking also seems good enough to me for many purposes, even slightly faster movement. The battery life seems very good so far. You can probably only get more with real smartphone gimbals (stabilizers), which you can carry by the handle, but can also usually be used on tripods - but they need apps, then you can also set up reliable tracking of a person with DJI's Osmo series, for example. .. Since gimbals have even more mobility, even more extensive tracking in space is probably possible, e.g. steeper in the downward or upward angle... Of course, the gimbal also has the advantage that you can also use it for video stabilization when moving by hand ...