Validation of Apple Watch for Estimating Moderate-to-Vigorous Physical Activity in Children

Identifying accurate instruments for assessing physical activity (PA) is crucial for surveillance and promotions of PA in children. Apple Watch has been appeared as one of the most popular wearable devices that are designed to monitor individual’s PA. However, little knowledge is available whether it provides an accurate estimate of time spent in moderate-to-vigorous PA (MVPA) in children. PURPOSE: To examine the validity of Apple Watch 3 in...