The Loop is meant to be worn 24/7, tracking your sleep as well as activities. That means it needs to be comfortable and look presentable, and I think it succeeds on both counts. The physical design of ...

A well-built tracker in desperate need of a friendlier app The Polar Loop (Gen 2) is a solid piece of hardware, but it's by no means a straightforward subscription-free alternative to Whoop. That ...

Dale Smith is a former Associate Writer on the How-To team at CNET. Echo Loop raises a host of questions about what it does, who it's for, whether you can customize it and even how to buy it -- it's ...