I have two of this dongle for Fitbit, for me and my wife. And we are using iPhones to synchronizing datas. Actually it doesn’t works well in Windows 10 !
So I checked what it used driver for works as :
HID\VID_2687&PID_FB01&REV_0100&MI_00 HID\VID_2687&PID_FB01&REV_0100&MI_01
What is this …? HID ? Wow, it is not bluetooth dongle but works as bluetooth in radio.
Maybe it is a junk to me for now … I will debug this device in Linux.