Your watch’s VO2 max isn’t perfect, but you can improve its accuracy with better data and heart-rate tracking.

With the rise in popularity of the Oura Ring, I've seen lots of ZDNET readers express interest in finding a more affordable alternative. I don't blame them; while the Oura Ring is a leading smart ring ...

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

Vivoo's attachable smart toilet sensor was unveiled at CES 2026 and is designed to analyze hydration levels in real time. Corin Cesaric is a Flex Editor at CNET. She received her bachelor's degree in ...

Senso is a gamified plant sensor that's designed to use AI to improve plant care. It is supposed to track soil moisture, temperature, and light exposure data in real time, and there is a little pixel ...

PCWorld explains how to create an affordable CO2 air quality monitor using a Raspberry Pi and MH-Z19C sensor for under $40. This DIY project helps monitor indoor air quality since high CO2 levels ...

We may receive a commission on purchases made from links. While it may seem intimidating at first, there are plenty of easy DIY auto maintenance projects that even the most novice DIY-er can handle.

Aqara is introducing a new presence sensor that is a natural addition for HomeKit users who want reliable automations without the need for a camera. The new Aqara FP300 combines mmWave presence ...

Growing customer use of artificial intelligence (AI) alongside the continued draw of live sports and major gaming releases has resulted in record levels of data consumption across the networks of ...

The Deciphering the Data quest in Arc Raiders sends you to Spaceport to check out some Magnetic Decryptors, and finding exactly where they're located can be a bit of a challenge. However, you've come ...

The promise of the smart home largely hinges on accurate, speedy presence detection. That's to say, our home needs to know when there are people in it and where they are, as quickly as possible, so ...