Huawei Band 4 Pro
Tech specs 
Size45 mm (span of main body) × 19 mm (width) × 11 mm (maximum thickness of the main body)
Wrist strap: Width: 16.5 mm (after the strap is fully loosened); Length: The long strap is about 120 mm, and the short one is about 92 mm
MaterialMetal casing & soft silicone strap
ChargingBuilt-in USB-A port
Battery91 mAh
Battery life12 days for typical use
Water-resistance5 ATM (50 meters)
Weight25 grams
Sensor6-axis acceleration sensor, Detached PPG cardiotachometer, Infrared wear sensor, GPS, NFC
DisplayAMOLED color screen. Resolution: 120 x 240 pixels
Screen size0.95 inches (21.6 mm × 10.8 mm for AA area))
ColorsObsidian Black, Space Blue, Quicksand Gold
Other- band looks for irregular heartbeats with an accuracy rate of 95.5%
Activity tracking 
StepsYes
DistanceYes
Calories burnedYes
ActivityYes
FloorsYes
SleepYes
Heart rateYes
Stress & recovery
Pulse OxYes
Respiration rate
UV exposure
Skin temperature
Galvanic skin response
Hydration level
Calorie intake
GPSYes
Running features
Swimming features
Other
Non-fitness functions 
Smartphone notificationsYes
On-board music storage
Connected payYes
LTE
Links 
Affiliate link*Amazon
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