Fitbit Sense Smartwatch
Most smartwatches track activity. Many track heart rate. Important metrics, to be sure, but there's a big one — stress — that has so far been overlooked in the wearable space. Fitbit's new Sense smartwatch uses the world's first electrodermal activity (EDA) sensor on a smartwatch, as well as heart rate tracking technology and an on-wrist skin temperature sensor, to track stress levels and recommend ways to better manage it. It also has a host of other common smartwatch features, including sleep tracking, an ECG app, onboard GPS, an AMOLED display, and up to six days of battery life.