About this item

• The Mi Smart Band 4 features a 39.9% larger (than Mi Band 3) AMOLED color full-touch display with adjustable brightness, so everything is clear as can be. Compatible with Android 4.4 or later/iOS 9.0 or later. Water-resistant at a depth of up to 50m
• With music control on the band you can change the song, increase/decrease the volume and groove on without even touching your phone
• With a sturdy 5ATM waterproof built, you can now take your band for a swim. It auto detects your swim style and captures 12 detailed data points for tracking. Connectivity - Bluetooth 5.0
• Health and wellness tracking at its best with 24/7 automatic heart rating monitoring and alerts to warn you when the heart rate is high
• Tangle free cable
• Ultra deep bass
• Has mic and play/pause button
• High quality silicone earbuds

• Technical Details

  Brand	‎MI
  Manufacturer	‎Shenzhen Yecon Industry Co. Ltd
  Model Name	‎SmartBAND 4
  Product Dimensions	‎4.7 x 1.8 x 1.3 cm
  Batteries	‎1 Lithium Polymer batteries required. (included)
  Operating System	‎Android,Ios
  Hardware Platform	‎Android 4.4/iOS 9.0 or above
  Special Features	‎Heart Rate Monitor, Activity Tracker, Multisport Tracker, Sleep Monitor, Notifications, Waterproof, Long Battery Life, Customize Watch Faces, Microphone
  Mounting Hardware	‎1 N fitness tracker, 1 N black strap, 1 N charging cable, 1 N user manual
  Display Technology	‎AMOLED
  Display Type	‎AMOLED
  Microphone format	‎In-Line
  Headphones form factor	‎in ear
  Voltage	‎5 Volts
  Battery Average Life	‎20 Days
  Batteries Included	‎Yes
  Battery cell composition	‎Lithium Polymer
  Wireless Type	‎Bluetooth
  Connector Type	‎Bluetooth
  Device interface - primary	‎Touchscreen, Microphone, Buttons
  Material	‎Plastic