Z4 Heart Rate Smart Wristband Support Steps Calories Distance Display Sports Fitness Tracker Smart Bracelet The custom heart rate sensor

The custom heart rate sensor in NEECOO-V3 smart watch can help gauge your intensity during workouts to improve overall calorie tracking

Built-in lithium polymer battery sustainable camera up to about 100 minutes

--Engine RPM

Designed to charge up to four devices at the same time

Measurement Instructions:

Z4 Heart Rate Smart Wristband Support Steps Calories Distance Display Sports Fitness Tracker Smart Bracelet The custom heart rate sensorProduct Features: Great Craftsmanship W4S wristband built in 0. 96 inch OLED display screen, clearly showing the date, clock and battery power. It looks fashion and thin. Silicone watchband with adjustment holes, wear it comfortable and valuable Dynamic Heart Rate Monitor 24 hours dynamic heart rate detection, Built in heart rate monitor sensor and 3 axis acceleration motion sensor let heart rate data more accurate Activity Tracking for Workouts It