Multisport GPS watch with a large 1.4 display in a resilient 51 mm fiber-reinforced polymer case with a titanium bezel and rear cover | Scratch-resistant Power Sapphire solar charging lens uses the suns energy for weeks of battery life in smartwatch mode | Built-in LED flashlight with variable intensities and strobe modes gives you greater awareness while you train at night and provides convenient illumination when you need it | New hill score feature measures your running strength/endurance during ascents and gauges your progress over time | New endurance score feature combines training data from all your athletic pursuits to help you better understand how training impacts your overall endurance | Gain a more complete picture of your overall health, training and recovery with 24/7 health and wellness monitoring features such as HRV status and Pulse Ox, which helps with altitude acclimation; prioritize your rest and recovery with advanced sleep monitoring (this is not a medical device, and data presented is intended to be a close estimation of metrics tracked; Pulse Ox not available in all countries) | Morning report and training readiness features combine your health and training data for easier interpretation and analysis | Focus your training with wrist-based running power, strength training features and advanced pacing modes to gauge your output on race day | Advanced navigation sensors combined with multi-band GPS with SatIQ technology deliver more accurate positioning while also optimizing battery life | Check out preloaded maps for thousands of golf courses and ski resorts worldwide; use TopoActive maps to keep your explorations on track, and never miss a turn with Up Ahead navigation prompts