Sleep trackers use your resting heart rate, heart rate variability and breathing data to estimate how long you sleep and how much time you spend in each stage.

Fitbit has unveiled the third device in the Fitbit Charge family, the Fitbit Charge 3, and the new version adds SpO2 tracking among other health tracking improvements. The device will be available ...

Platform integrates with major wearables and fitness apps to deliver AI-powered health insights, advanced HRV metrics, ...

ATLANTA — Your watch says you had three hours of deep sleep. Should you believe it? Millions of people rely on phone apps and wearable devices like rings, smartwatches and sensors to monitor how well ...

While some technology can hinder sleep, certain devices are designed to improve rest. Sleep tech includes items like noise machines, sleep trackers, and heated eye massagers. Wearable devices can ...

This article is part of Gizmodo Deals, produced separately from the editorial team. We may earn a commission when you buy through links on the site. Reading time 3 minutes Not everyone can afford to ...

Alarm options include rumbles and gradual temperature changes for each side of the bed. The hub can also play white noise and ...