Fitness Trackers, Heart rate monitor: yes

Xiaomi Global Version Xiaomi mijiaSmart Band 9 Active Bluetooth Smartwatch 1.47" TFT Screen 18 Days Battery Life Sports Modes Sleep Tracking

Xiaomi C5S Smart Wristband Fitness Tracker Bracelet Fit Men Women Kid Smartwatch Sport Waterproof Connected Heart Rate Smart Watch Band

Xiaomi Youpin LIGE Health Smart Bracelet for Couples Heart Rate Monitor Activity Fitness Tracker Men Women Band Sports Waterproof Smart Watch

Xiaomi Runmifit S5 Body Temperature Monitor Intelligent Wristband Smart Band Heart Rate Blood Pressure Respiration Rate Smart Bracelet

Xiaomi Original DM12 Smart Band 1.91inch Full Touch Screen Curved 3D Glass IP68 Waterproof Heart Rate Sleep Stress Multiple Sports Mode