Best Mi Smart Band 4

This 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. It is Compatible with Android 4.4 or later/iOS 9.0 or later. It supports 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. with this band you can now take your band for a swim.  It supports auto detects your swim style and captures 12 detailed data points for tracking. Connectivity - Bluetooth version is 5.0.
With the help of 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.  You can Style the band display as per your mood with unlimited watch faces. It also Simply pick a photo from your gallery and set it as your watch face.  With the band on your wrist. you can easily receive text messages, silence or reject calls, and get social media notifications instantly.  It supports Up to 20 days of long lasting battery life for uninterrupted performance.

Technical Details is :

Brand isMi
Model isXMSH07HM
Item Weight is36.3 g
Product Dimensions is4.7 x 1.8 x 1.3 cm
Batteries type is1 Lithium Polymer batteries required. (included)
Item model number isXMSH07HM
Hardware Platform usedAndroid 4.4/iOS 9.0 or above
Included Components is1 fitness tracker with black strap, 1 charging cable, 1 user manual
Voltage is5 Volts
Wireless TypeBluetooth
Device interface - primaryTouchscreen