Has 1gb large memory
Touchscreen 1.58”
Sleep monitoring up to 24 hr
Battery life 14 days
Sport mode up to 100+
Play music
Voice assistant
Magnetic charging
Ringtone settings
Monitor heart rate blood oxygen / respiration / emotion / stress / sleep status 24 hours a day, record data and display scientific analysis charts. You can turn on automatic monitoring in the APP and set the monitoring time interval and heart rate alarm threshold. This product is not a medical device.