Brand new. Never worn or used Quickfit watch band compatible: Included (26 mm) Strap material: Silicone Physical size: 51 x 51 x 14.9 mm Fits wrists with the following circumference: Silicone band: 127-210 mm Leather band: 135-213 mm Fabric band: 135-213 mm Metal band: 135-225 mm Color display: Yes Display size: 1.4-inch (35.56 mm) diameter Display resolution: 280 x 280 pixels Display type: sunlight-visible, transflective memory-in-pixel (MIP) Weight: Steel: 97 g (case only: 69 g) Battery life:Smartwatch: Up to 21 days Battery saver watch mode: Up to 80 days GPS: Up to 60 hours GPS + Music: Up to 15 hours Max battery GPS mode: Up to 120 hours Expedition GPS activity: Up to 46 days Memory/history: 32GB Clock features Gps time sync Alarm clock Timer Stopwatch Sunrise/sunset times Health Monitoring Wrist-based heart rate (constant, every second) Sleep: Yes (advanced) Sleep score and insights Hydration: Yes (in Garmin connect and optional connect IQ widget) Women's health: Yes (in Garmin connect and optional connect IQ widget) Sensors, GPS Glonass, Galileo Garmin elevate wrist heart rate monitor Barometric altimeter Compass Gyroscope Accelerometer Thermometer Pulse ox blood oxygen saturation monitor: Yes (with Acclimation) Daily Smart Features Connectivity: Bluetooth, ANT+, Wi-Fi Connect IQ (Downloadable watch faces, data fields, widgets and apps) Smart notifications So many more features….