Amazfit GTR 3 Pro, Amazfit GTR 3, and Amazfit GTS 3 were launched in India on Wednesday. The new smartwatches run Zepp OS that gets third part app support. They get a bunch of health tracking features such as 24x7 heart rate monitoring, blood oxygen saturation (SpO2) monitoring, and more. Additionally, they get more than 150 sports mode and can automatically recognise 8 sports.