3-axis accelerometer and 3-axis gyroscope.
24/7 Heart rate monitoring
Safeguard your health at all times. Alerts you when your heart rate
is too high.
Stay active as you get reminders to get up and get moving.
5 ATM water resistant up to 50m. Recognizes 5 different swim styles
and records 12 data sets including swimming pace and stroke count.
Whether you're doing high-speed battle rope training or an aerobic
battle rope workout, Mi Smart Band 4 will track your heart rate, calories
burned and more.
5 core data sets - Helps you improve power walking efficiency.
Smarter Music Controls
Workout to your favourite music. Change the song, increase and
decrease the volume with music control.
Unlimited Watch Faces
Comes with pre-installed watch faces and an option to choose
pictures from your gallery.
Enhanced Mi Fit Interface
The interface allows you to track vital metrics and customize your
workout to suit your needs.
6 workout modes: Treadmill, exercise, outdoor running, cycling,
walking, pool swimming; Count steps, distance,and calories burned
Workout completion notifications, goal setting, sleep monitoring,
heart rate monitoring, all-day heart rate checking, resting heart rate,
heart rate chart, idle alerts
Alarm, proximity sensor, pre-set watch face, customisable watch
face, lock screen, timer, stopwatch, phone alarm and notifications,
incoming calls, message notifications, calendar notifications, app
notifications, weather forecast, Find my phone, phone unlock, event
notification, Night mode, Do not disturb mode (works even without phone),
music controls on band, Bluetooth broadcasting, battery level display,
different ways to wear, OTA updates
Amoled colour touch screen with better brightness and 40% more visible
View your calls, messages and notifications
Physical activity tracker (including swimming)
Water resistant to 50M
Improves metric measurement
Includes 3-axis accelerometer and 3-axis rotating lens
Up to 20 days of battery life on a single charge
Health monitoring heart rate and sleep monitoring 24/7
Type: Mi Band 4
Screen Size: 0.95"
Wrist Strap Material: Thermoplastic polyurethane
Adjustable Wrist Strap Length: 155-216mm
Wristband Width: 18mm
Water Resistance Rating: 5 ATM
Display Type: AMOLED
Resolution: 120 x 240 RGB
Colour Depth: 24bit
Screen Brightness: Up to 400 nits (max brightness), brightness adjustable
Touchscreen Type: On-cell capacitive touchscreen
Screen Protection: 2.5D tempered glass with anti-fingerprint coating
Button: Single Touch Button (wake up, go back)
Wrist Strap Type: Removable wrist strap
(Mi Smart Band 4 is compatible with Mi Band 3 straps)
Wireless Connectivity: BT5.0 BLE
Battery: LiPo, 135mAh
Charging Type: 2Pin Pogo Pin
Charging Time: ≤ 2 hours
Standby Time: Up to 20 days
Motor Type: Rotor
Body Material: Polycarbonate
App: Mi Fit
System Requirements: Android 4.4, iOS 9.0 or above
-3-axis accelerometer + 3-axis gyroscope;
-PPG heart rate sensor;
-Capacitive proximity sensor
1 x Mi Smart Band 4 Black
1 x Specialised Charging Cable
1 x User Guide