The fenix(R) 7X Pro Sapphire Solar is the ultimate multisport GPS smartwatch with a large 1.4" display, designed to perform all day, every day. Get weeks of battery life with the scratch-resistant Power Sapphire(TM) solar charging lens. DESIGN & FEATURES: 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(TM) solar charging lens uses the sun's 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 TECHNOLOGY: Advanced navigation sensors combined with multi-band GPS with SatIQ(TM) 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 Track your favorite sports with even more activity profiles, such as soccer, football, baseball, volleyball, ice hockey and racquet sports Stay connected with smart notifications, music storage and more (compatible smartphone required) Battery life: up to 37 days in smartwatch mode with solar charging in 3 hours of direct sunlight (50,000 lux) per day; up to 122 hours in GPS mode with solar charging