The Whoop 4.0 continuously tracks vital health metrics ... you might not want to deal with a sweaty strap tucked under your sports bra. On the other hand, smart rings, worn on your finger, offer ...

A highly specific piece of tech that provides a depth of insight about health and fitness metrics, but which may be wasted on all but the most committed of users You can trust Cyclingnews Our ...

The strap should touch the skin underneath ... Improvement from WHOOP 3.0 The souped-up WHOOP 4.0 has five LED sensors measuring more elements of your health than the previous model, including ...

They use a variety of sensors to measure heart rate metrics, skin temperature, and blood oxygen levels. The devices are also equipped with an accelerometer to track movement and calculate the wearer’s ...