For Hackaday readers who don’t spend their free time underwater, nitrox is a blend of nitrogen and oxygen that’s popular with scuba divers. Compared to atmospheric air, nitrox has a higher ...

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Microcontrollers can coordinate high-speed RF front ends to bring MHz-range measurement, automation, and signal processing into embedded workflows. This article explains the principles and ...

One of the most important metrics on a Fitbit tracker is the Estimated Oxygen Variation—and now that every tracker is fitted with an SpO2 sensor, everyone can take advantage. Blood oxygen may be used ...

The Pro XA6 SA6320A and Expert XA5 SA6210A are intended to streamline testing processes as wireless technologies evolve towards wider bandwidths, higher frequencies and more sophisticated ...

Whether you use an armband or chest strap, add some smarts to your exercise and training routine with one of the top heart rate monitors we've tested. I'm PCMag's managing editor for consumer ...

If you've been struggling to sleep and end up feeling fatigued during the day, the data collected by these sleep trackers can help you find a solution. Caroline Igo Former Editor, Sleep Caroline Igo ...

When you’re in shopping mode for a new toilet, remember that a large price tag doesn’t guarantee great performance. In our tests of single- and dual-flush toilets, most that receive high Overall ...

If gym workouts, exercise classes, and functional movements are the cornerstone of your fitness routine, you’ve been woefully unsupported in the world of wearables in recent years. Many startups have ...

This tracker is no longer being maintained. Numbers and graphics on this page will continue to update automatically but may become out of date as public health agencies wind down reporting of various ...

FCC public comment volume from the preceding Notice of Inquiry phase accelerated technical and policy engagement, resulting in earlier-than-typical stakeholder input for the NPRM process. Efforts to ...