Bought the Biostrap as I was seeking continuous biometric data tracking due to issues I'm having with my oxygen saturation being dangerously low when active and what I realized after buying it only tracks data when you are not active aka it really is only a sleep tracker. It does not track any data when you are active - unfortunately I only noticed this in the FAQs after purchasing it when I was attempting to figure out why I had so many areas in my biometrics that were blank throughout the day. I did purchase the shoe pod but all that does is count your steps when active. You can get HR while being active if you hook up an external HR monitor - which I already have with my Garmin. I'll be returning it. Completely useless in my opinion unless you only want a sleep tracker for restless legs or sleep apnea. I believe their marketing is borderline fraudulent.