Ultimate GPS Bike Computer with Navigation and Connected Features 3.5” bike computer with comprehensive navigation, performance and cycling awareness features Trendline popularity routing uses millions of miles of Garmin Connect ride data to show the best on- and off-road routes Preloaded Garmin Cycle Map provides turn-by-turn directions and new navigation alerts New rider-to-rider messaging lets you stay in contact with other cyclists in your group Challenge yourself every ride with newly updated preloaded Strava Live Segments feature Battery life: up to 20 hours, extendable up to 40 hours with the optional Garmin Charge power pack