The clock Features: Time/Date, Automatic Daylight Saving Time, Stopwatch, Timer, and Alarm Health Monitoring: Wrist-based Heart Rate (Constant, Every Minute), Daily Resting Heart Rate, SpO2(Blood Oxygen) Level Measurement, Blood Pressure, Breathing Training, Women's Health, Sleep ...The clock Features: Time/Date, Automatic Daylight Saving Time, Stopwatch, Timer, and Alarm Health Monitoring: Wrist-based Heart Rate (Constant, Every Minute), Daily Resting Heart Rate, SpO2(Blood Oxygen) Level Measurement, Blood Pressure, Breathing Training, Women's Health, Sleep Score and Insights, and Calorie Burn Tracking Daily Smart Features: Smart Notifications(Call, Text, G-mail, and Smartphone App Notifications), Weather Sync, Controls Smartphone Music and Camera, Find My Phone and Watch, Do Not Disturb Modes, and Sedentary Alerts. Drink water reminder, Calculator, Password, APP Download Activity Tracking Features: Activity Record, Step Counter, Standing, Move Bar (Displays on the device after a period of inactivity of in activity; Walk for a couple of minutes to reset it), Auto Goal (Learns your activity level and assigns a daily step goal), Calories Burned, Real-time Pace & Distance Sport Modes System: Walking, running, indoor running, outdoor cycling, climbing, strength training, basketball, badminton, elliptical machine, table tennis, yoga, skipping rope, rowing machine, tennis, baseball, rugby, cricket, lazy car, exercise bike Specifications: Chip: Realtek 8763EW Display Size: Large 1.47'' IPS Color Display Display Resolution: 360*360 pixels, 326 PPI Glass: Corning Gorilla Glass Sensor Movement: 3-Axis Accelerometer and 3-Axis Gyroscope Sensor Health: New OHR fusion biometric sensor (supports blood-oxygen, 4PD + 3LED) Bluetooth-compatible: BLE 5.2 Battery Capacity: 280mAh Li-pol battery Battery Life: Battery Saver Modes: Up to 25 days Typical Usage Modes: Up to 14 days Heavy Usage Modes: Up to 7 days Continuous Voice Calling: Up to 345mins Charging Time: About 1.5 hours APP Name: FitCloudPro Smartphone Compatability: Android 5.0 or iOS 10.0 and above System: English, Portuguese, German, Spanish, French, Russian, Italian, Polish, Turkish, Japanese, Korean, Vietnamese, Arabic, Hebrew, Thai, Croatia, Czech, Dutch, Indonesian, Malay, Finnish, Greek, Romanian, Simplified Chinese FitCloudPro APP: English, Portuguese, German, Spanish, French, Russian, Italian, Polish, Turkish, Japanese,Korean, Arabic, Hebrew, Thai, Croatia, Czech, Indonesian, Malay, Greek, Romanian, Simplified Chinese Message Push: English, Portuguese, German, Spanish, French, Russian, Italian, Polish, Turkish, Japanese, Korean, Arabic, Hebrew, Thai, Croatia, Czech, Indonesian, Malay, Greek, Romanian, Simplified Chinese Voice Calling Features: One Touch to Connect, Voice Calling, Voice Assistant, Dial Pad, Recent Call, Contact, and Call Rejection Theme Style: List Menu, Tile Menu, Arch Bridge Menu FitCloudPro APP Push: Soccer, swimming, treadmill, free training, aerobics, indoor walking, indoor cycling, dance, sit-ups, hula hoops, golf, long jump, volleyball, stepping, horseback riding, field hockey, tai chi, shuttlecock, boxing, outdoor walking, cross-country running, skiing, gymnastics, ice hockey, taekwondo, maximal oxygen uptake, walker, hiking, track and field, waist and abdominal training, karate, finishing and relaxation, cross-training Pilates, crossfit, functional training, physical training, archery, flexibility, mixed aerobics, Latin dance, street dance, free sparring, ballet, Australian soccer, martial arts, stair climbing, handball, bowling, squash, curling, hunting, snowboarding, recreational sports, American football, hand cycling, fishing, folk dancing, alpine skiing, snow sports, soothing meditation head, core training, ice skating, fitness Games, aerobics, group exercise, combat gymnastics, lacrosse, foam axle shoulder, wrestling, fencing, softball, singles, bars, roller skating, darts, pikeball, HIIT, shooting, jiu-jitsu, skateboarding, balance bike, roller skating, parkour, diving, surfing, snorkeling, pull-ups, push-ups, planks, rock climbing, high jump, bungee jumping, marathon APP Sync: 300+ System Default: 4 Customize Watch Faces: Support Case: Zinc Alloy Button: Zinc alloy Buckle: Plastic Material: Durable and comfortable liquid silicone strap Width: 22 mm, Compatible with standard 22mm quick-release watch bands Wrist Circumference: 130-235 mm