The batteries inside the Versa 3 and Sense are both rated for the same 6-plus days of use, but that comes with caveats. You’ll get detailed breakdowns of how the score is calculated, including “exertion balance (impact of activity), responsiveness (heart rate, heart rate variability, and electrodermal activity from the EDA Scan app), and sleep patterns (sleep quality).” A new Health Metrics dashboard will amplify the information the Sense’s sensors record, including “breathing rate (average breaths per minute), resting heart rate (an important indicator of cardiovascular health), heart rate variability (variation of time between each heartbeat), and skin temperature variations.” Versa 3 vs Sense: Battery and charging

Skin temperature: Automatically while you sleepĪdditionally, Fitbit Premium (available for $10 a month or $80 a year) unlocks even more data about your stress score.ECG (heart rhythm): Hold two fingers on the corners of the stainless steel ring for 30 seconds.EDA (stress): Hold your palm over the display.

Fit bit sense