Bluetooth Version: Bluetooth 4.0  
People: Female table,Male table  
Waterproof: Yes  
Waterproof Rating : IP67  
Screen: Yes  
Screen type: OLED  
Compatible OS: Android,IOS  
Compatability: Android 4.4 / iOS 8.0 and above system  
Language: English

Battery Type: Lithium Polymer Battery  
Battery Capacity: 100mAh  
Power: Built-in Battery  
Standby time: About 20 days

Functions: Alarm Clock,Call reminder,Calories burned measuring,Camera remote control,Date,Distance recording,Measurement of heart rate,Notification of app,Pedometer,Sedentary reminder,Sitting posture reminder,Sleep management,SMS Reminding

Shape of the dial: Rectangle  
Case material: ABS  
Band material: TPU + TPE

The dial thickness: 1 cm / 0.39 inches  
The dial diameter: 2.5 cm / 0.98 inches  
The band width: 2 cm / 0.79 inches  
Wearable length: 14.5 - 22.5 cm / 5.71 - 8.86 inches  
Package weight: 0.153 kg  
Product size (L x W x H): 23.50 x 2.50 x 1.00 cm / 9.25 x 0.98 x 0.39 inches  
Package size (L x W x H): 8.80 x 14.60 x 3.60 cm / 3.46 x 5.75 x 1.42 inches

Package Contents: 1 x Smart Bracelet, 1 x Charging Clip, 1 x English and Chinese User Manual