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

A vehicle’s Check Engine light can turn any car ride into a harrowing experience. As soon as the check engine light ...

The NIMA Gluten Sensor is 99% accurate at detecting gluten in your food. All it takes is three minutes. At CES 2026, one of ...

Today I'm trying out 4 gadgets that use light in very different ways. Cellphone video from officer shows moment of fatal shooting of Renee Good 550-pound bear finally evicted from California home ...

Mira Ultra 4 debuts at CES 2026 with 4-in-1 hormone testing for fertility, PCOS, and menopause. Get the full technical review ...

Galaxy Watch 4 and Watch 4 Classic users report bad battery life and broken sensors after updating to the latest One UI 8 Watch update. There are reports of the always-on display not functioning as ...

Instead of improving performance, the One UI 8 Watch update is apparently breaking core Galaxy Watch 4 Classic features for some users. Wrist detection stops working, which disables health features ...

Wired headphones are making a comeback, but how do the most affordable ones actually sound? Of the four I tested, there's only one I would use every day and recommend buying.

I love my Oura ring. Ask any of my friends, and they’ll tell you that it’s become one of my main personality traits over the ...

Cardiac device therapy has significantly evolved since the introduction of the first implantable pacemaker and the subsequent ...