I used it too with Amazfit Bip watch. No complaints, recommended. I installed it before my first use of the watch, and never had to connect with the manufacture

I used it too with Amazfit Bip watch. No complaints, recommended. I installed it before my first use of the watch, and never had to connect with the manufacturer at all. This does mean I never had a basis to compare with the manufacturer's app. I currently use an Apple watch only because I needed more capabilities.