As a certified personal trainer, I tested 14 wearables over eight months while training, running and swimming. Here are the best fitness trackers and watches in 2026.

Plus, doctors’ number-one pick and their take on the devices.

Caroline Igo (she/her/hers) was a wellness editor at CNET and holds Sleep Science Coach and Stress Management certificates from the Spencer Institute. She received her bachelor's degree in creative ...

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 they're ...