Smartwatches: Wearable devices collect activity data through sensors and software. Compare current US offers and read practical advice before choosing a model.
Updated
Wearable devices collect activity data through sensors and software. GPS, phone notifications and health-related features vary by model and region.
Check compatibility with your phone and the apps you use. Compare battery guidance for everyday use and GPS recording separately. Review sensor limitations, fit and account requirements, and do not treat consumer measurements as a medical diagnosis.