Have you ever wondered how your smartwatch tracks your heartbeat? Or how it scores your sleep? In this episode of our Made by Google podcast, host Rachid Finge gets into the details of Fitbit and Pixel Watch with product manager DeCarlos Love. DeCarlos explains the science behind biometric tracking, how the team turns data into insights, and how his own passion for fitness informs his work. Can you believe we've already made it to episode 6? Just two more to go before our first season is complete!