All-day heart rate monitoring - Xiaomi Smart Band 7 tracks your heart rate in real-time all day long and delivers precise reviews in easy-to-read graphs. The band will vibrate to alert you when your heart rate falls out of the safe zone.*
Sleep Quality Tracking - The band monitors your sleep patterns with care and accuracy. You can find detailed statistics regarding deep sleep, light sleep and REM* phases on your smartphone to help you understand your sleep quality. *REM: need to turn on advanced sleep monitoring in additional settings on Mi Fitness to have this feature.