I started out with Belkin's attempt at this product. It connected using a glitchy app and relied on the phone's camera and the app to do the face tracking. This required me to link my phone and the Belkin stand via Bluetooth. Between the crummy app and the eternal flakiness of Bluetooth, it worked precisely once after many attempts and never worked again. Belkin also relies on a magnet to retain the phone, so I had to remove my case each time to use it. The Belkin unit uses three AA batteries.This item is so much better. It has a built in camera to perform the face tracking. No app is necessary and no bluetooth is required. Phone retention is accomplished by spring tension, so I can leave my case on while I film. Finally, this one is rechargeable. No AA batteries here!I am a professor and I am using this to record my live lectures to post for my students in isolation or quarantine. As long as I do not move too fast, it keeps up with my movements just fine. I use a microphone with a remote speaker, which I place under the phone so, no matter how far I stray or which direction I face, the phone's microphone always picks up my rantings. This stand has a standard 1/4-20 camera mount on the bottom. I am using it with a small tripod to put my phone at eye level on the first row of the class. This gives the video a student's perspective. All in all, I am quite pleased with this gizmo.