Ultimate high-performance smartwatch features a large 1.4” always-on, stunning AMOLED display and a scratch-resistant sapphire lens with a titanium bezel designed for larger wrists 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 and endurance during ascents and gauges your progress over time New endurance score feature combines training data from all your athletic pursuits to help you 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; 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 important 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