HUAWEI Band 4 Smart Bracelet

features ergonomic comfort and youthful look. Additionally, it provides proactive health monitoring, and 91 mAh battery capacity frees you from frequently plug and charge.
Features:
[Youthful Design Meets Ergonomic Comfort] Like a stylish splash of colours, HUAWEI Band 4 is available in Sakura Pink, Amber Sunrise and Graphite Black. The 2.5D colourful screen offers you with the stunning visual experience, engaging interface and smart message notification.
[Various Watch Faces] Express yourself by giving your device as much personality as you have. HUAWEI Watch Face Store offers various watch faces in different styles of sports, cartoon, intelligence and hi-technology for your selection. The style changes with your mood.
[Easy Charging, Longer Usage] Free you from different cables and chargers. The built-in USB plug of HUAWEI Band 4 fits in general USB chargers so you charge it anywhere and anytime. A single charge powers the band with more than 6 days of usage time.
[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.
[9 Sports Mode] Outdoor / Indoor run, Outdoor / Indoor walk, Outdoor / Indoor cycle, Elliptical, Rower, Free training. Conveniently choose exercises from nine modes and track your workouts. HUAWEI Band 4 provides detailed data results like heart rate, heart rate zone, steps, distance, speed, calories and more. So you can adjust yourself for better exercising or training.
[Life Assistant on Your Wrist] Notifications of any messages or phone calls, Find My phone, Remote Shutter, all with a tap of your finger to your wrist. Live an efficient life with HUAWEI Band 4.
Parameters:
Microprocessor: Apollo 3
Screen Size: 0.96 inches
Screen Type: TFT colour screen
Resolution: 80 x 160 pixels
BT: 2.4 GHz, BT 4.2 (distance 10m)
Sensor: 3-axis Acceleration/Optical Heart Rate/Infrared Wear Sensor
Compatibility: with Android 4.4, iOS 9.0 and above
Battery: Non-removable Li-ion Battery
Battery Capacity: 91 mAh
Charging Time: about 1.5 hours (in ambient temperature of under 25 C)
7 days Usage Time: HUAWEI TruSleep is enabled, Heart rate monitoring (Smart mode) is enabled, Raise wrist to wake screen is disabled;
8 days Usage Time: HUAWEI TruSleep is enabled, Heart rate monitoring (Smart mode) is disabled, Raise wrist to wake screen is disabled
9 days Usage Time: HUAWEI TruSleep is disabled, Heart rate monitoring (Smart mode) is disabled, Raise wrist to wake screen is disabled
Ambient operating temperature: -10 C +45 C
Functions: Remote Shutter, Information Push, Fitness Tracker, Heart Rate/Sleep Monitor, Alarm, Weather, Timer, Anti-lost.