Fitbit has released an update for its Versa and Ionic lines that lets you quickly check your blood oxygen saturation. The new Fitbit SpO2 Signature watch face shows your overnight SpO2 readings, which ...

Exclusive: The new Fitbit smartwatch has a sensor that actually checks your skin to see how stressed out you are. I started with CNET reviewing laptops in 2009. Now I explore wearable tech, VR/AR, ...

Fitbit announced the Charge 4 this month last year as its most advanced fitness tracker with built-in GPS and SpO2. Data from the latter sensor was previously only accessible in the Fitbit app, but ...

The Fitbit Sense sports an ECG, SpO2, stress, and skin temp sensors, plus a heart rate tracker. It launches alongside the $229.95 Versa 3 smartwatch and $99.95 Inspire 2 fitness tracker, which ...

Fitbit also launches Versa 3, adding GPS and a speaker; brings enhanced design and Active Zone Minutes (AZM) to Inspire 2 New Health Metrics dashboard for Premium lets users track heart rate ...

Oxygen is absorbed by a protein in your blood called hemoglobin. When you breathe, your lungs load up blood cells with oxygen, then the pumping of your heart circulates the oxygen-rich blood through ...

Google's March 2026 update to the Pixel Watch lineup is reportedly causing issues with SpO2 and skin temperature readings in the Fitbit app.

The bioengineer Takuo Aoyagi died in Tokyo in April, around the same time that people began clamouring to panic buy his 1970s invention, the pulse oximeter. Blood oxygen saturation, which pulse ...

Fitbit has dropped a patent for a medical grade smart ring, in what could be a dramatic new form factor for the Google-owned company. A filing at the US Patent and Trademark Office (spotted by ...

In Fitbit’s family of wearables, you now have your pick of the Fitbit Versa 3 and the Fitbit Sense. The Versa 3 and the Fitbit Sense are now the last generations of Fitbit smartwatches, but while both ...