HUAWEI Band 4 Pro - Smart Band Fitness Tracker with 0.95 Inch AMOLED Touchscreen, 24/7 Heart Rate Monitor, Blood Oxygen Saturation Monitor, Built-in GPS, 5ATM Waterproof - Pink Gold

Dimensions
Dimensions (Length x width x height): 45mm (span of main body) x 19mm (width) x 11mm (maximum thickness of the main body)
Material: Engineering plastic + metal front shell
Weight: Approximately 25g (including the wrist strap)

Wrist Strap
Material: Silicon rubber
Width: 16.5mm (after the strap is fully loosened)
Length: The long strap is about 120mm, and the short one is about 92mm

Operating System:
Android 4.4 or later
iOS 9.0 or later
GPS: Supported

Sensors
6-axis IMU sensor (Accelerometer sensor, Gyroscope sensor)
Optical heart rate sensor
Infrared wear sensor

Battery
Capacity: Typical value at 100mAh
Charging time: about 100 minutes (under 25 °C ambient temperatures)

Button: Full screen touch + Home button
Waterproof Level: 5ATM
Devices complying with the 5ATM-rated water have a water resistance rating of 50 meters under ISO standard 22810:2010. This means that they may be used for shallow-water activities like swimming in a pool or ocean. However, they should not be used for scuba diving, waterskiing, or other activities involving high-velocity water or submersion below shallow depth.

Bluetooth
Bluetooth frequency: 2.4GHz
Bluetooth 4.2
Bluetooth connection distance less than or equal to10m (in an open area)
Charging Port: Two PIN charging port, connected to charging cradle through clip

Battery Life:
12 days: HUAWEI TruSleep™ is disabled, Continuous heart rate monitoring is disabled, Raise wrist to wake screen is disabled, Screen is checked briefly 30 times a day, 7 hours of workouts with GPS enabled (able to function during a full marathon)

7 days: HUAWEI TruSleep™ is enabled, Continuous heart rate monitoring is disabled, Screen is turned on 300 times a day, 30 messages a day, 2 calls a day, 2 alarms a day, 7 hours of sleep

5 days: HUAWEI TruSleep™ is enabled, Continuous heart rate monitoring is enabled (Smart mode is enabled by default), Screen is turned on 500 times a day, 30 messages a day, 2 calls a day, 2 alarms a day, 7 hours of sleep
Data is based on test results from the Huawei lab. Actual battery life varies depending on your band’s configuration, operations, ambient environment, and how long the battery has been used.

Package List:
1 * Band
1 * Charging Line
1 * Charging Cradle
1 * User Manual