The Fitbit Sense 2 is our current favorite overall Fitbit ... While you're sleeping it tracks your SpO2 levels and temperature, which can alert you to conditions like a fever or breathing problems ...

The Fitbit Sense 2, Sense, Versa 4, and Versa 3 have SpO2 monitors for automatic SpO2 tracking. Other Fitbits have SpO2 sensors, which are only utilized for additional Sleep Score details.

Our review billed the original Fitbit Sense as a feature-packed smartwatch loaded with sensors to augment health tracking. Its sequel lives up to these expectations, packing the same ECG ...

Fitbit smartwatches are built to monitor health and fitness activities like heart rate, steps, sleep, and exercise. They ...

The biggest stories of the day delivered to your inbox.

The update brings two new features to the Fitbit Luxe, adding an always-on display and the ability to now use its SpO2 sensor to give blood oxygen saturation scores to its users. Launched back in ...

Alexa and the Fitbit Versa 4 offers Standalone GPS (can connect to GPS without needing your smartphone). It has SpO2 sensor and VO2 Max as well as a multitude of multi-sport tracking features ...