Xiaomi Mi Fitness Band 3 with HR and Display XMSH05HM

About:
Automatic Heart rate uses advanced algorithms to accurately measure your heart rate including aerobic, anaerobic, and VO2 max heart rate zones.
With the Mi Fit App, you can set customized daily goals based on your needs.
Allows you to monitor your activities like running, biking, or walking in real-time.
Accurately records information about your sleep quality every night.

Product Details:
The strap is made of thermoplastic elastomer material that allows for a more comfortable fit for any wrist size.