Is Fitbit trying to avoid people solely relying on its devices for diagnostic readings during a pandemic? Possibly.īlood oxygen saturation (SpO2) is another measurement in the Sense’s arsenal and it’s a particularly useful way of determining how well you’re sleeping. Having said that, it seems odd that there’s no option to manually check your external temperature and the fact that we only have an idea of the fluctuations during sleep seems like a waste of the sensor’s capabilities.

This can be useful to see if, for example, your poor sleep quality is due to being too hot at night. One of these is its ability to keep tabs on your skin temperature at night, creating a baseline to show how things fluctuate over time. Stress levels aren't the only thing the Sense measures and the usual suspects including GPS, heart rate and activity intensity levels are all accounted for, but there are some interesting extras thrown in too. In comparison, sessions where we felt neutral or relaxed only logged up to a couple of EDA events in total. That same session also showed that our heart rate increased. One session in particular, in which we felt actively stressed – due to dealing with the reappearance of some unwelcome underfloor rodents – had this reflected in our measurements, with seven EDA events recorded in total. Having tried it over the past week, the results have been more or less accurate. The more EDA measurements (or events, as Fitbit calls them), the more stressed you are. Given the year we're all having, your starting position may not be as serene as you'd like. Once the scan is complete, you record how you’re feeling at that moment, from a selection of options that include “very calm”, “calm”, “neutral”, “stressed” or “very stressed”. When you start an EDA scan, simply place your free hand over its face for two minutes and wait, ensuring you’re in contact with its metal edges at all times.

The Sense cleverly uses its metal sides to do this measuring.

Fitbit sense review