Garmin Instinct 2 Solar Solar charging with long-lasting battery. * Built-in multi-system GPS (GPS / GLONASS / Galileo). * Water resistant up to 100 meters (10 ATM). * Tracks heart rate, blood oxygen, sleep, and stress. * Call and message notifications when connected to a mobile phone. Bought it used. Reason for selling: I didn't like its health system and step counting accuracy.