HUAWEI Band 4 Smart Band, Fitness Activities Tracker

Smart Heart Rate Tracking

Thanks to the professional optical devices, processing chips and AI algorithm, the HUAWEI TruSeenTM 3.5 monitors your heart rate with accuracy. It also provides intelligent reminders via vibrations if your heart rate exceeds the maximum average heart rate*. In the night mode, the invisible light ensures less distraction for your better sleep.

* Users can manually adjust this setting.

Care For You Better Sleep

Healthy sleep is the basis for healthy living. HUAWEI TruSleepTM 2.0 tracks your heart rate during sleep to recognize the four phases and analyze the sleep quality. More than identifying 6 types of sleep problems, it also provide suggestions* to help you enjoy better sleep.

*Features may not be available depending on the country or region.

Longer Usage

Band 4 supports a full day using with 15 minutes charging and a single full charge powers the band with more than 6 days of usage time.*

*Based on results from HUAWEI lab tests. Battery life depends on actual usage situation.

Display	0.96inch/80*160 dpi/TFT/colorful touch screen	0.95inch/120*240 dpi/AMOLED/colorful touch screen	0.95inch/120*240 dpi/AMOLED/colorful touch screen
Dimensions	56*18.5*12.5(mm) (strap is not included)	45*19*11(mm) (strap is not included)	45*19*11(mm) (strap is not included)
Battery Life	7days(HR monitoring and sleep tracking enabled) /8(HR monitoring disabled, sleep tracking enabled)/9(HR monitoring and sleep tracking disabled)	5days(HR monitoring and sleep tracking enabled) /7(HR monitoring disabled, sleep tracking enabled)/12(HR monitoring and sleep tracking disabled)	5days(HR monitoring and sleep tracking enabled) /7(HR monitoring disabled, sleep tracking enabled)/12(HR monitoring and sleep tracking disabled)
Heart Rate Monitoring	HUAWEI TruSeenTM 3.5	HUAWEI TruSeenTM 3.0	HUAWEI TruSeenTM 3.5
Charger	Built-in USB charger	Pogo pin	Pogo pin
Watch Face	Supports HUAWEI Watch Face Store	6 built-in watch faces	Supports HUAWEI Watch Face Store
Sensor	PPG+3-axis motion sensor	PPG+6-axis motion sensor	PPG+6-axis motion sensor
Water Resistance	5ATM	5ATM	5ATM
Workout	Outdoor run/Indoor run/Outdoor walk/Indoor walk/Outdoor/cycle/Indoor cycle/Elliptical/Rower/Free training	Outdoor run/Indoor run/Outdoor walk/Indoor walk/Outdoor/cycle/Indoor cycle/Elliptical/Rower/Free training/Pool swim/Open water swim	Outdoor run/Indoor run/Outdoor walk/Indoor walk/Outdoor/cycle/Indoor cycle/Elliptical/Rower/Free training/Pool swim/Open water swim