HIGH-TECH MONITORING FOR EVERY RIDEREdge 820 is the Compact, touchscreen cycling computer for competitors and serious achievers like you. Get the accuracy of turn-by-turn GPS navigation and an altimeter to tell you how fast, how high, how far youGCOve gone and where youGCOve traveled. Whether you're training for a race or just trying to reach your personal goals, edge 820 gives you high-tech performance monitoring metrics like vo2 Max, recovery advisor time and advanced cycling dynamics. Comprehensive cycling awareness features include Built-in incident detection and compatibility with varia Rearview Radar. WeGCOve also added group track, to keep Tabs on other riders in your Pack, in-ride challenges through Strava live segments, smart notifications and customization options from connect IQ. FEATURESPerformer bundle - includes Premium heart rate monitor (chest strap), cadence sensor and speed sensorGroup track - keep in touch with other riders in your pack with group track: you can see where your fellow riders are -offering peace of mind and enhanced situational awarenessHigh-resolution touchscreen display - lightweight and compact with 2.3-Inch high-resolution capacitive touch display that works with gloves and when wetPerformance features - includes Vo2, recovery advisor, strava live segments, performance condition, stress score, advanced cycling dynamics, ftp and watts/kg trackingBattery life - new extended battery life for longer, more adventurous rides. Up to 15 hours; battery save mode will extend battery life up to 50% while still tracking the detail of your ride