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 Compatibility: Android™ 5.0+, iOS 10.0+ Battery Life: Up to 1 year ** Based on usage** Case Size: 50MM Dial Color: Black Interchangeable Compatibility: 24MM Platform: NATE HYBRID SMARTWATCH Sensors: Accelerometer Storage: Stores up to 2 weeks of data between syncs Strap Width: 24MM Water Resistance: 5 ATM Model #: FTW1115