The manufacturer offers changeable straps, SpO2 sensor and WiFi. Amazfit marketed the GTR 4 as a running/sports/Health watch with advanced tracking features providing over 150 sports modes ...

Amazfit GTR 4 features The Amazfit GTR 4 is a feature-packed smartwatch with a heart rate sensor and the company’s BioTracker 4.0 PPG biometric sensor that allows you to measure your blood ...

Amazfit has built a reputation for offering feature-packed smartwatches at reasonable prices. Whether you’re looking for a budget-friendly option, a fitness-focused device, or a rugged outdoor ...