The Fitbit Charge 5 is a great but expensive tracker, while Xiaomi's Mi Band 7 is half the price. So, should you spend more -- or less -- on your next tracker? Lexy compares these two fitness trackers on comfort, screens, workout tracking, heart-rate monitoring, sleep and smart features.

The public beta version of iOS 16 is out to try. Here are some of our favorite features that you can test right now.

The first images from the world's most powerful telescope let us see deeper into space than ever before. Here's how NASA's "time machine" saw invisible light from billions of years ago.