You're built to push limits so is Enduro 3. This ultraperformance GPS smartwatch features a lightweight design and incredible battery life with solar charging that lasts up to 320 hours in GPS mode (assumes continuous use for entire period in 50000 lux conditions). Light up the dark with the built-in LED flashlight and enjoy long-distance comfort thanks to a lightweight UltraFit nylon band.Designed for ultra-endurance athletes with a lightweight design weighing just 63g to help improve performanceTake on the elements with a titanium bezel scratch-resistant sapphire lens and built-in LED flashlight to light up the dark; UltraFit nylon band provides long-distance comfort - even in punishing conditions Up to 90 days of battery life in smartwatch mode (assumes all-day wear with 3 hours per day outside in 50000 lux conditions) and 320 hours in GPS mode with solar charging (assumes continuous use for entire period in 50000 lux conditions) - all with an always-on display so you're ready to take on the toughest challenges Preloaded TopoActive maps are optimized for outdoor activities to help keep your adventures on track Dynamic round-trip routing allows you to set a target destination for your run bike or hike; Enduro 3 will continually adjust the route to get you back home on schedulePower up your body's performance endurance and resistance to injury with targeted strength trainin