The Garmin Forerunner 245 Music Sports Watch is a sleek and lightweight watch with a durable corning Gorilla Glass 3 and a sweat-proof silicone band. It has built-in GPS, menstrual tracking, smart notifications, and built-in sports apps. The watch also has a body battery energy monitor and Garmin coach. The watch constantly samples your heart rate and alerts you if it stays too high or too low while you’re at rest. It also helps gauge how hard you work during activities, even underwater. The watch has a pulse Ox sensor that estimates your body’s blood oxygen saturation, which can gauge how your body is absorbing oxygen, especially while you sleep. You can sync your playlists from select music streaming services right to your watch. The Forerunner 245 Music can store up to 500 songs. If you feel unsafe or if your watch senses that an incident has occurred, assistance and incident detection features send your location to emergency contacts. You’ll get up to 7 days of battery life in the smartwatch mode and up to 6 hours in GPS mode with music.