Fitbit® Sense The advanced smartwatch focused on health that helps you tune in to your body and guides you toward a better well-being. Detect and manage stress, get low and high heart rate alerts, better understand your sleep quality and even keep an eye on patterns in your skin temperature. Of course you will have all the fitness features you love including in-built GPS and a long battery life with six plus days. Sense also unlocks a six-month free FiFitbit® Premium trial of personalised guidance and advanced insights for new premium users. Plus all comes in a modern and premium design. The EDA Scan app detects electrodermal activity which may indicate your body's response to stress. An on-wrist skin temperature sensor logs yours each night so you can see how it varies. Designed with personalised health and fitness guidance with a free 6-month trial of Fitbit® Premium. Designed with sophisticated polish on a stainless steel ring and a seamless fit with upgraded infinity band design. High and low heart rate notifications alert you if yours seems above or below your average.