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 ...

The Apple Watch’s SpO2 sensor that allows wearers to measure their blood oxygen levels was impressive when it first debuted, but it may be even more accurate than initially marketed. According to a ...

The MAXREFDES220# reference design provides everything you need to quickly prototype your product to measure finger-based heart rate and blood oxygen saturation level (SpO2). The MAXREFDES220# ...

Some Pixel Watch owners say SpO2 and skin temperature tracking stopped working after a recent Fitbit update. Google and Fitbit have acknowledged the permission reset issue and say work is underway to ...