Honor Band 4
Tech specs 
MaterialSkin-friendly TPU material
Battery100 mAh
Battery life14 days (20 days in standby mode)
Water-resistance5 ATM
Weight23 grams
Sensor3-axis motion sensor (6-axis for the Running Edition), heart rate sensor and infrared light sensor, NFC
DisplayAMOLED display with 2.5D curved glass
Screen size0.95-inch inch
OtherComes as a regular version worn on the wrist like a regular smartband and a second variant called the Honor Band 4 Running Edition that can be attached to your running shoes.
Activity tracking 
Calories burnedYes
Heart rateYes
Stress & recovery
Pulse Ox
Respiration rate
UV exposure
Skin temperature
Galvanic skin response
Hydration level
Calorie intake
Running featuresBand 4 Running Edition features metrics including cadence, stride length, landing mode, swing angle, ground impact, ground contact time and eversion range.
Swimming featuresSwim stroke recognition
Other Auto-update time/date, multiple time-zones, ring your phone, alarm clock, take a photo, control your music.
Non-fitness functions 
Smartphone notificationsYes
On-board music storage
Connected payYes
Affiliate link*Amazon
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