1.65 "AMOLED display with 341 ppi pixel density, 450nit, Always-on Touch mode, PPG BioTracker ™ 2 optical sensor Measurement of blood oxygen saturation, Continuous heart rate analysis and anomaly detection, PAI to understand your physical state, monitors sleep quality, stress analysis, measures outdoor and water temperature, 5 ATM waterproof and can also be used in water up to 50 meters deep, 246mAh battery, Bluetooth 5.0