This smart wristband is combination of heart rate monitor, BP monitor, blood oxygen monitor, step counts, distance measuring, calorie consumption management, sleep management, call reminder, clock, anti-lost (positive and negative direction lookup), vibration alarm clock and so on.

Features:
HEALTH DATA MONITOR: Equipped with built-in sensors, which displays your heart rate, tracking and reminding the data during every sport moment, helping you arrange exercise time and intensity freely.
INTEGRATED SPORTS ACTIVITY MOVEMENT TRACKING: Advanced fitness monitor, pedometer and calorie counter are utilized to help you reach your life fitness goals, EKG/ECG displaying on the App Live Readout to monitor health, Monitor the quality and duration of your sleep with automatic sleep tracking.
0.42 INCH OLED TOUCH SCREEN TOGETHER WITH LIFT WRIST BRIGHT SCREEN: Gravity sensor lift wrist bright screen adopts the latest technology elastic element gravity sensor, which is made of storage energy chip to drive the electric shock severely change to signal conversion.
CONTACTS CHARGING: 2 excellent charging contacts provide the creative and convenient charging way, 3-5 days duration time and 7 days standby after 1.5h fully charged.
REPLACEABLE WRIST STRAP: You can customize your own color or change the strap color according to your mood. 
IP67 RATING: The band can be immersed in water for up to 30 minutes at a time. You can wear it freely to wash face, take bath, swim and don't need to worry about it.

Specification: 
Material: PC & TPU
Color: Black / Orange / Blue / Purple / Brown (Optional)
Chip: Nrf51822
Triaxial Sensor: LIS3DH
Heart Rate Sensor: lst1303
Language: English
Screen: 0.42 inch TFT OLED 
Transmission: BT 4.0
Power: 1 * Built-in 70mAh Li-polymer battery (included) 
Duration Time: 3-5 days
Standby Time: 7 days
Charging Time: About 1.5H
IP Rating: IP67
Data Storage: 7 days of detailed exercise records + 23 days of complete daily data 
Net Weight: 20g / 0.82oz
Screen Size: 45.5 * 18 * 10.9mm / 1.8 * 0.7 * 0.4in
Wrist Size Range: 130-200mm / 5.1-7.9in
Package Size: 12.8 * 8.2 * 3.1cm / 5.0 * 3.2 * 1.2in
Package Weight: 81g / 2.86oz

Package List:
1 * Fitness Tracker
1 * User Manual 
1 * Charging Clamp
 
Device Requirement: 
Compatible for Android 4.4 and above / for iOS 8.0 above / BT 4.0 enabled device.