This large prospective UK study compared five low-cost fingertip pulse oximeters with arterial blood gas measurements and ...

Fingertip monitors known as pulse oximeters that can be used at home to detect low blood oxygen levels (hypoxaemia) give higher readings for patients with darker than lighter skin tones, finds the ...

"Although absolute differences in readings were small, they can result in substantially higher rates of false negatives and ...

Vanessa is a lead writer at CNET, reviewing and writing about the latest smartwatches and fitness trackers. She joined the brand first as an on-camera reporter for CNET's Spanish-language site, then ...