Amazon are quite good, let them know it's not working as expected.
I've played around with it and it does seem to have a lot of potential. The app doesn't have 4k video, but it's just only been released, so hopefully they'll add this feature in the next update. There's more degree of rotation as unlike the Osmo 2, the YI can rotate 360 degrees and it also includes an extra function which holds the horizontal.
I have s8 and I can't get it to work properly, it has a mind of its own, the app is utter rubbish and Bluetooth connection from the app keeps disconnecting and also the camera using the yi gimbal app doesn't focus properly. Don't know if Amazon will refund? I tried calibration few times, using Samsung camera app I was able to make a video however it wasn't straight.
Arrived this morning and really struggling to get it working correctly... Think my Huawei P20 Pro may be a bit too big for it
Code stop working as they have removed the discount code from Amazon