Do smart watches really work

Smartwatches are wearable devices that offer various features beyond telling time, such as fitness tracking, notifications, and even making phone calls. These devices utilize sensors to collect data and provide personalized information to the user. While smartwatches have gained popularity in recent years, their effectiveness depends on individual needs and preferences. Some find them helpful in monitoring their health and staying connected, while others may not find them essential. Ultimately, the effectiveness of smartwatches varies from person to person, and it is up to the user to determine if they work for them.

There have been several different studies that show fitness trackers and smartwatches are fairly good at measuring heart rate at rest or in recovery, but get less accurate as the intensity of exercise increases. β€œAt any moment your tracker could be 20 beats too high or low,” Cadmus-Bertram suggests.