Featuring a Power Glass™ solar charging lens to extend battery life and packed with performance features for all your activities, the Garmin Enduro GPS watch is built for endurance athletes. Like you. With its Power Glass™ solar charging lens and customizable power manager modes, this GPS watch can stay on and remain performance-ready for weeks, or even months Rugged, weather-resistant design is tuned for punishing race conditions with a stainless-steel bezel, buttons and rear case 1.4 in. sunlight-optimized display allows easy viewing, even on the move Prepare for even the longest races with advanced features such as trail run VO2 max, ultrarun rest timer and ClimbPro Trail run VO2 max tracks your cardiovascular fitness level and adjusts based on trail conditions Using the ultrarun activity with rest timer allows you to log your time spent at aid stations ClimbPro ascent planner provides real-time information on your current and upcoming climbs, including gradient, distance and elevation gain Use the run/walk detection to review after training sessions or races where on the course you walked, such as steep climbs Stay in top form with an enhanced recovery timer and workout recommendations based on your sleep and wellness data Includes wrist heart-rate tracking and Pulse Ox, which senses blood oxygen saturation for sleep monitoring and altitude acclimation Pulse Ox is not a medical device and is not intended to diagnose or monitor any medical condition Includes preloaded activity profiles for trail running, swimming, running, biking, hiking, rowing, skiing, golfing and more Log your daily fluid intake as a reminder to stay hydrated; when auto goal is enabled, you'll see estimated sweat loss after an activity, and your goal will adjust accordingly Navigate in even the most challenging environments with multi-GNSS support (GPS, GLONASS and Galileo) and the barometric altimeter and compass Superlight sport loop band is elastic, adjustable and durable Move from workout to workday with smart notifications (when paired with a compatible smartphone, not included) that keep you connected Garmin Pay™ contactless payments free you from carrying cash or credit cards (not all countries and payment networks are eligible) Use the Power Manager to view how various settings and sensors impact your watch's battery life, so you can make battery-extending changes on the fly Battery performance in Smartwatch mode: up to 50 days, or 65 days when solar charging (assuming all-day wear with 3 hrs. per day outside in 50,000 lux conditions) Battery performance in GPS mode: up to 70 hrs., or 80 hrs. when solar charging (assuming use in 50,000 lux conditions) Battery performance in Battery Saver mode: up to 130 days, or 1 year when solar charging Battery performance in Max Battery GPS mode: up to 200 hrs., or 300 hrs. when solar charging Battery performance in Expedition GPS activity: up to 65 days, or 95 days when solar charging