This summary of the video was created by an AI. It might contain some inaccuracies.
00:00:00 – 00:07:07
In the video, Rob, a postdoctoral scientist from Vienna, Austria, evaluates the heart rate accuracy of the Fitbit Sense by comparing it with the Polar H10 chest strap, known for its precision. Rob conducts six sessions, including spinning and weightlifting, and uses custom code to analyze the raw heart rate data from both devices. The comparison reveals that while the Fitbit Sense performs well at lower heart rates, its accuracy diminishes at medium to high rates, especially around 170 bpm. The device's software algorithm may be causing delays in detecting sudden heart rate increases, though it accurately tracks decreases. Consequently, the Fitbit Sense is not recommended for activities needing precise heart rate monitoring like interval training or weightlifting but could be suitable for endurance training. While its overall heart rate accuracy is moderate, it lags behind more accurate devices like the Polar H10. The presenter concludes by highlighting the variability in fitness tracker accuracy and encourages viewers to engage with the channel for further reviews.
00:00:00
In this part of the video, Rob, a postdoctoral scientist from Vienna, Austria, tests the heart rate accuracy of the Fitbit Sense. He compares it with the Polar H10 chest strap, considered one of the most accurate consumer heart rate tracking devices. His testing involved three spinning bike sessions and three weightlifting sessions. Rob extracted and analyzed raw heart rate data from both devices using custom code and plotted the results.
The plot shows Polar H10 heart rate on the horizontal axis and Fitbit Sense heart rate on the vertical axis. Ideally, points should align along a blue line that indicates perfect agreement. However, deviations are observed. For lower heart rates, the Fitbit performs well, but for medium and higher heart rates, especially around 170 bpm, Fitbit shows lower accuracy with some points diverging from the blue line.
The analysis includes a detailed look at one of Rob’s spinning sessions, showcasing heart rate trends over approximately 45 minutes, divided into four parts.
00:03:00
In this part of the video, the speaker discusses the performance comparison between the Fitbit Sense and the Polar H10 heart rate monitors during various workouts. They highlight a consistent lag in the Fitbit Sense when detecting sudden increases in heart rate across spinning and weightlifting sessions, unlike the Polar H10. The speaker speculates that this issue is likely due to a software algorithm in the Fitbit Sense that might be designed to avoid false spikes, rather than a hardware limitation, as the Fitbit can accurately detect heart rate drops.
00:06:00
In this segment, the presenter discusses the suitability of the Fitbit Sense for various types of heart rate monitoring. They advise that the device may not be ideal for activities requiring accurate heart rate tracking like interval training or weight lifting. However, it could be adequate for longer endurance training or occasional monitoring. The Fitbit Sense offers several other features and its heart rate accuracy is moderate, better than some devices but inferior to others like a TomTom device. The presenter conducts scientific tests on different tracking devices and invites viewers to subscribe and like the video.