We tested popular wideband O₂ controllers against lab-grade equipment to see how accurate their lambda readings really are ...

Could Luna beat Oura at the smart ring game?

A new survey finds 38% of drivers have ignored a check-engine light in the past year, making it the most common risky ...

From sporty smartwatches to premium monitors, the best GPS sports watch will track your fitness and activity 24/7 ...

There are a lot of aviation apps out there that allow you to access useful aviation and weather data from your wrist. Here we ...

PreEvnt isaac device uses breath analysis to monitor glucose levels without needles, drawing attention at CES 2026 as a ...

VO2 max, the measure of how much oxygen the body consumes during exercise, has become a ubiquitous tool for professional ...

Pulmonary function tests are a group of noninvasive breathing tests that measure how much air your lungs can hold, how quickly you can move air in and out and how efficiently your lungs transfer ...

By Dr. Liji Thomas, MD A major UK study shows that commonly used home pulse oximeters can overestimate oxygen levels in ...