(as of Oct 23,2020 18:14:29 UTC – Details)
Band Body: 56 mm x 18.5mm x 12 mm (H x W x D)
Strap width: 17 mm
Strap length: 123 mm + 85 mm
Weight: Approximqtely 24 g(including the wrist strap)
TFT colour screen
Resolution: 80 x 160 pixels
Size: 0.96 inches
Microprocessor: Apollo 3
Operating System: Android 4.4 or later, iOS 9.0 or later.
Sensors: 3-axis acceleration sensor, Infrared wear sensor, Optical heart rate sensor
Battery Capacity: 91 mAh
Charging time: about 1.5 hours (in ambient temperature of under 25 °C)
Screen is checked briefly 200 times a day, 50 messages a day, 3 calls a day, 3 alarms a day
Environment: Ambient operating temperature: -10 °C – +45 °C
Bluetooth frequency: 2.4 GHz
Front cover: Plastic
Strap: Silicone rubber
Charging Port: USB charging port
Water Resistance: 5ATM
ROM: 384 KB, ROM: 1 MB, Flash: 32 MB
Full screen touch + Home key
In The Box: Band, Charging cradle, Quick start guide, safety information.
Display: TFT colour screen. Resolution: 80 x 160 pixel. Size: 0.96inches. Button Control: Full screen touch + Home key.
Oxygen Saturation Detection: Blood oxygen saturation (SpO2) is one of the important vital signs that can reflect the oxygen supply of the body. HUAWEI Band 4 supports single-time SpO2 level measuring, helping you detect the level of oxygen in the blood whenever and wherever you need.
Smart Heart Rate Tracking: Thanks to the professional optical devices, processing chips and AI algorithm, the HUAWEI TruSeen 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.
Care For You Better Sleep: Healthy sleep is the basis for healthy living. HUAWEI TruSleep 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.
Life Assistant on Your Wrist: Notifications of any messages or phone calls, Find My phone, Remote Shutter, all with a touch of your finger to your wrist. Live an efficient life with HUAWEI Band 4.