METHOD FOR SYNCHRONISING ACCELEROMETER-BASED METRICS USING CARDIAC ACTIVITY IN WRIST WORN WEARABLES

A method for synchronizing recordings of two wearable devices (12,14) worn by a user (16) in a specific use case is designed to measure a characteristic behaviour of the user over a period of time. The method comprises acquiring first recordings via a first wearable device (12) operable via a first clock, and acquiring concurrent second recordings via a second wearable device (14) operable via a second clock, wherein each clock has a clock drift and offset. The first and second wearable devices are synced with a hub executable app (18) executed on a hub device (20). A clock-time correction (62) is implemented via the hub executable app before processing (64) the respective recordings for the specific use case. The clock-time correction ensures that respective recordings have been corrected in time so that a difference between clocks, or clock drift, of the two wearable devices is no more than a threshold duration of a shortest event specific to the characteristic behaviour being measured.