Heart rate on gym equipment. Daily Readiness Score. 40+ Exercise modes. Heart Rate tracking and Active Zone minutes. Built-in GPS. All Day Activity Tracking. SmartTrack Automatic Exercise Recognition. SpO2 (blood oxygen) tracking. Skin temperature variation. EDA Scan app for stress management. Stress Management score. Water resistant up to 50 M. Google Maps and Google Wallet. Up to 7 day battery life. Small fits wrists 5.1"-6.7" in circumference. Large fits wrists 6.7"-8.3" in circumference. Includes Infinity band (small and large) and charging cable.
