Whatever your fitness level or style, the Withings Blue Pulse OX (iOS & Android) can help you be more active and improve your health. During the day it captures steps, distance walked, elevation climbed and calories burned. At night, it monitors your sleeping cycles. And when asked, it measures your heart rate and blood oxygen level. The Pulse OX offers an empowering experience, as you are able to better yourself by making informed choices. Pulse OX Blue Tracks Steps taken; Elevation Climbed actively; Distance traveled based on user's profile for high percision; Calories burned; Run with daily recap of duration and distance; Instant heart rate; Blood oxygen level; Sleep duration, quality, light vs deep, and sleep interruptions. Includes Pulse, Clip, Wristband, micro-USB to USB charging cable, Quick install guide.