The graph will display your blood's oxygen level, using the SpO2 sensor that's been sitting idle inside compatible Fitbit devices. The update was first reported by Tizen Help. Fitbit confirmed to ...

It all revolves around a patent battle with medical device maker Masimo over the SpO2 sensor. It all revolves around a patent battle with medical device maker Masimo over the SpO2 sensor.

The technique employed here is not too different from what SpO2 sensors in smartwatches like the Apple Watch Series 8 and Samsung Galaxy Watch 5 do. When the flash illuminates the path of blood ...