Used Zeblaze GTR 3 Pro Smartwatch – Slim and Elegant Design • 1.43-inch high-definition circular AMOLED display • Scientific sleep tracking + 24-hour heart rate monitoring • Blood oxygen measurement SpO2 and stress monitoring • Over 100 sports modes • IP7 water resistance (suitable for daily use and swimming) • Reception of notifications and calls via Bluetooth • Battery lasts up to 14 days of regular use • Lightweight at 27.5 grams and comfortable to wear • Compatible with the FitCloudPro app • Silicone/rubber strap, black color