I sort of agree. I am using gadget bridge with my old watch and while it works fine in general...the step tracker,and calories burned seem really inconsistent.

The heart rate and oxygen saturation seem accurate compared to other devices measuring it.

I wouldn't mind a new watch that was more expensive than my current one if it was more accurate and had better setup compared to how I had to pair my current device. I'm not talking google watch or apple watch, but sub $300 device.