That’s why CR’s overall scores reflect a watch’s health-related capabilities. These include the ability to track sleep, stress, and markers of cardiac health—both basic heart rate monitoring and electrocardiogram (ECG) readings. Some watches also act as insightful training partners, logging detailed workout stats and helping you improve your performance over time. Any health- or fitness-related data you get from your watch can be used to begin a discussion with your doctor.
We test watches on factors such as step count accuracy, ease of use, versatility, the waterproofness of the case, and durability of the display.
Consumer Reports is a nonprofit membership organization. All products in our ratings are purchased at full retail.