That’s where pulse oximeters come in. These small devices measure your heart rate and SpO₂. They give you another way to understand how your body responds during exercise and recovery. Also, they may ...

Wrist pulse oximeters can look similar, making it hard to decide which one to buy. This in-depth guide covers everything you need to know to find your best fit.

While many homeowners focus on limiting the risk of outside incursions, some threats can also occur in the home, and devices such as smoke alarms and carbon monoxide (CO) detectors can help keep ...

I’m PCMag’s senior writer covering smart home and wearable devices. I’ve been reporting on tech professionally for nearly a decade and have been obsessing about it for much longer than that. Prior to ...

In a world of wearable technology that gathers data about our sleep, activity levels, heart rate, and more, it’s no wonder we now have so many smart gadgets for nurseries that can do the same for our ...

Many people who knew Dr. Aoyagi, or knew of him and his invention, agreed to participate in this tribute to his work. The authors, from Japan and around the world, represent all aspects of the ...

The Amazfit GTS has a nice (if unoriginal) design, a vibrant display, and impressive battery life, but inconsistent step tracking and unreliable alerts are the bane of its existence. If you’re ...

When your capnograph waveform doesn’t seem to make sense, it’s time to start troubleshooting to find out why. Use the acronym DOPE to help you remember to check for displacement, obstruction, ...