Amazon's AI-powered Alexa offers new and improved features for just about every user. Here's how to get started and whether you should buy a new Echo device to try it out.

A peak flow meter is a handheld device that measures airflow rate and can help those with respiratory conditions like asthma ...

You can use the ECG app on your Apple Watch to monitor your heart rate and detect irregularities, in which case you should notify your doctor.

As per Apple, the new hypertension detection feature on the Apple Watch "works passively in the background" and assesses ...