Measures pulse rate and blood oxygen saturation levels to help you keep tabs on your wellness while you exercise Pulse rate strength indicator and pulse rhythm graph make it easy to view crucial information at a glance Easy-to-read display offers five levels of brightness and four convenient viewing angles Soft, silicone padding ensures a cushioned and comfortable fit Automatic shutoff, low-battery indicator, and one-button operation make the monitor simple to use Portable, lightweight design is small enough to take with you virtually anywhere