Features: Bio-Based Resin Case Bio-Based Resin Strap Solar Power Mineral Crystal Black Dial Digital Display Shock Resistant Carbon Core Guard Structure Multi-Sport Functions Training Analysis Wrist Heart Rate Measurement Blood Oxygen Level Measurement Breathing Exercise Active Time Measurement Mobile Link Charging System Compatible With Dedicated Cable Auto Time Adjustment Easy Watch Setting Approximately 300 World Time Cities Notification Function Training Analysis Data Activity History Life Log Data Distance Correction By Smartphone Gps Sleep Analysis Data Phone Finder World Time Moon Data Sunrise, Sunset Time Display Sunrise Time And Sunset Time For Specific Date 1-Second Stopwatch Countdown Timer 4 Daily Alarms With Snooze Smart Alarm (With Snooze) LED Backlight Full Auto-Calendar Button Operation Tone On/Off Power Saving Airplane Mode Vibrator Regular Timekeeping 12/24 Hours Display Month, Day And Date Display Screwed Case Back Buckle Clasp 200m Water Resistance Approximate Case Diameter: 44.50 mm Approximate Case Thickness: 17.40 mm