How we test smartwatches at ZDNET in 2026

We spend days and weeks working, sleeping, and participating in various activities while wearing a smartwatch to find out which ones are best to recommend to you.

With advanced features such as voice assistants, crash detection, call and text support, and long battery lives, modern smartwatches are far more than just an accessory. And thanks to powerful sensors and extensive app suites, they've become one of the most popular health and fitness trackers, too.

How do we test and evaluate these smartwatches at ZDNET? How well is the watch supported by a smartphone companion? What functions and features stand out for each smartwatch? Here's the full breakdown.

Also: The best smartwatches you can buy

In most instances, the smartwatches we evaluate here on ZDNET are purchased after being released to the public, so there is no urgency in ...