Garmin’s new Edge 540 Solar Cycling Computer is a must-have tool to help us improve our riding, and it’s so awesome that it uses solar power to do so. With solar charging, we can ride longer and harder without our computer crashing mid-ride and taking away the incredible features the Edge 540 provides. When used with a heart rate monitor and power meter, we can see our most accurate data, which the computer uses to create personalized workouts, adaptive coaching, and live power targets. Riding longer may come with unknown routes, which is never an issue while using the Edge 540, thanks to multi-band GNSS technology and pre-loaded route options. A cycling computer designed for advanced navigation and adaptive useSolar charging allows for longer rides and up to 32 hours of battery lifeButton controls make for a user-friendly interfaceProvides adaptive coaching when used with a power meter or HR monitorMulti-band GNSS technology offers pin-point accuracy in any areaPersonalized workouts, insights, and coaching improve our ridingHousing MaterialsiliconeClockyesWirelessyesBacklightyesWater-ResistantIPX7Battery TypeLithium ion cell contained in equipmentBattery Life[demanding use] up to 32 hours, [battery saver mode] up to 60 hoursLow Battery IndicatoryesMount Typeout-front mount, standard mountIncludesEdge 540 Solar, out-front mount, standard mount, tether, USB-C cable, documentationDimensions2.3 x 3.4 x 0.8inFace Size2.6in diagonalClaimed Weight84.9g (3oz)Manufacturer WarrantylimitedActivitycross-country, enduro, gravel, road cycling, trail