Features:Functions:Data GPS, Distance, Speed, Time, Temperature,Altitude,Gradient,Lap,StravaSensor Support: Speed, Cadence, Speed Cadence 2 in 1 sensor, Heart rate, PowerAutomatic Backlight: Automatically turns on 30 minutes before sunsetWaterproof design: IPX7 ensures durability in all weather conditions.Long-lasting: battery life of 28 hours for extended Cycle adventures. Y29039