Amazfit GTR3 VS Amazfit Stratos 3 which one is better and why?  

If you want a sporty way to look after your health, the Amazfit GTR 2 health watch is it. This stylish smartwatch features the Huami BioTracker 2, which Source: Amazfit GTR 2 smart health watch is equipped with the Huami BioTracker 2 » Gadget Flow