Here comes the sun. This Garmin Fenix 7X Pro Solar's Power Glass solar charging lens uses the power of the sun to top up the battery. With just a few hours in direct sunlight, it'll keep ticking over for more than a month. Whether you're training for a marathon or hiking in the hills, it's on hand 24/7 to help you hit your goals. Heart rate, blood oxygen saturation, respiration, stress, sleep and more - it all gets monitored. The built-in LED flashlight helps you see where you're going when the nights start rolling in. Plus, Strobe mode matches your running pace for better visibility so you stay safe when you're training at night.