Your oxygen (O2) sensors are small but mighty — they help your engine run efficiently, cut emissions, and prevent costly damage. With the right OBD-II scanner and a bit of know-how, you can decode ...

Automotive experts stress that precise oxygen sensor diagnostics are essential to avoid unnecessary part replacements and maintain peak engine performance. Modern practices merge OBD-II scanning, live ...

The Fitbit Air is a $100 smart band, and it will work with the relaunched Fitbit app, now called Google Health.

Where (and how) you wear your health tracker can impact your data accuracy. Here's what researchers say matters most.

When we think of wearable fitness trackers, smartwatches like an Apple Watch or Garmin tend to be the first suspects that ...

Hypertension notifications are a new feature in watchOS 26 that’s available for select Apple Watch models, here’s how to set it up.

Dive into The Register's online archive of incisive tech news reporting, features, and analysis dating back to 1998 ...