Xiaomi Redmi Watch 4 Obsidian black BHR7854GL

Diameter: 44mm

Thickness: 12mm

Strap Width:20mm

Weight: 34g

Mechanical
Waterproof IP68
Screen size 1.54″
Screen type TFT-LCD, color screen
Screen cover 1.8 High hardness glass cover
Strap material TPU hardness 65±3 degrees
Buckle Silica gel hardness 75 degrees
Tongue buckle TPU hardness 65 degrees
Hardware
MCU RTL8752CMF
IMU (acceleration + gyroscope) STK8321
PPG heart rate sensor VC31B
Motor 1027 Motor
Screen Resolution 240*240
Flash 64Mb
BLE BLE5.0
BLE antenna module FPC
Power
Operating Voltage 3.8V
Battery capacity 260mAh
Battery type Lithium polymer battery
Charging method Magneto-suction charging
Charging time ? 2.5 hours
APP OS
iOS iOS 10.0+
Android Android 6.0+
Function
Multi-language support 15 languages(Russian, Indonesian, German, Italian, Czech, Japanese, French, Polish, Simplified Chinese, Traditional Chinese, English, Portuguese, Spanish, Arabic, Korean)
Basic functions Clock, date display (12/24 hour system, default 12 hour system)
Multi-dial
OTA upgrade (Upgrade directly via the BLE connection app)
Daily activity monitoring Heart rate (24-hour real-time heart rate monitoring)
Sleep (excluding short break): falling sleep time, wake up time, total sleep time.)
Steps (Monitor the number of steps per minute and record it every 10 minutes)
Calorie (Monitor calories per minute and record it every 10 minutes)
Distance (Monitor the distance per minute and record it every 10 minutes)
Sports functions Running
Walking
Riding
Rope Skipping
Climbing
Badminton
Table Tennis
Tennis
Yoga
Basketball
Soccer
Baseball
Spinning bike
Treadmill
Rowing
Jumping Jack
Dancing
Volleyball
Cricket
Hockey
Gymnastics
Sit-ups
Football
Autonomous measurement Heart rate measurement (User self-measurement, single heart rate monitoring)
Notifications Calling Notification (Incoming call received, an alert is displayed; You can hung it up by watch.)
Sedentary reminder (This reminder appears when the user is sedentary more than an hour, reminding the user to stand up and do some exercise)
SMS notification (The phone receives SMS message push anddisplay it to watch.)
App notification (Push notifications from other apps in watch by your choice)
Alarm reminder
Other functions Weather forecast
Firmware information(View device related information (firmware version, BLE address, etc))
Sports record
Reset function
Music control (Control your smartphone to play music.)
Gesture Swipe right to return(Except the horizontal sliding page, other pages slide right to return to the previous page) Lift the wrist (Lift the wrist to automatically brighten)
lay down (Put down the automatic shut down screen)