GTR 4 features a speaker and microphone with support for Bluetooth calling and independent music playback. As per the report, the company will also be fitting its new 4PD BioTracker 4.0 PPG optical sensor on the smartwatch which no doubt will offer more accurate all-day measurements for heart rate, blood oxygen, and stress levels. As for the software, the smartwatch runs Zepp OS 2.0 interface.
As far as the other key features go, the smartwatch will comes pre-loaded with a bunch of first-party Amazfit apps which will offer support for over 150 sports modes with automatic recognition, sports guidance, and workout analysis. It will also has 200 watch faces including matching AOD and dual-band GPS with support for all five global positioning systems. The Amazfit GTR 4 will pack a 475mAh battery which will reportedly last for 12 days on normal usage.