<br> <br>The BodiMetrics O2 Vibe has been trusted by over 30,400 customers to monitor heart rate and oxygen levels. The monitor gently vibrates while exercising should your blood oxygen level fall below the threshold you set (between 90-95%). <br> * Our SpO2 monitor is the lightest and smallest on the market. Free Your Finger with our comfortable thumb sensor (patent pending). No other oxygen monitor provides this capability! <br> <br> This device is compatible with most Android and iOS devices. Download the data to your O2 Vibe app and to your free secure BodiMetrics cloud for extra viewing and reporting functions. <br> Records up to 20 hours on a single charge. <br> The O2 Vibe is not a medical device and does NOT diagnose or treat Sleep Apnea. Built in rechargeable battery charges with micro USB (cord included). <br>