With this multipurpose health testing device, you can measure your body temperature and blood oxygen saturation, take an ECG, and listen to your heart and lungs with a pair of headphones.

After testing the best Android smartwatches over the course of a year, I found top picks from Samsung, Google and more.

The top Bluetooth trackers, Apple's second-gen AirTag and all four Tile models, go head-to-head in our tests to determine which one deserves a spot on your key ring.