Notifications: Alarm Clock, App Alerts, Calendar Alerts, Email, Multiple Time Zones, Social Media, Text Functions: Control Your Music, Interchangeable Watch Band, Sleep Tracker, Step Tracker, Take a Picture Connectivity: Bluetooth Smart Enabled / 4.2 Low Energy Strap Material: Silicone Battery Life: Up to 1 year ** Based on usage** Case Size: 46 mm Dial Colour: Black Interchangeable Compatibility: 22 mm Platform: CREWMASTER HYBRID SMARTWATCH Sensors: Accelerometer Storage: Stores up to 2 weeks of data between syncs Strap Width: 22 mm Case Water Resistance: 5 ATM Battery Type: CR2430