Methods, systems and devices are provided for capturing activity data associated with activity of a user via a device and transferring the data to a client device at a selected defined transfer rate, based on an update condition. The activity data is captured over time. The activity data is stored in storage of the device. The method sets a data transfer rate between the device and the computing device based upon the detected update condition. The update condition is used to select one of a first transfer rate for transferring activity data captured and stored over a period of time or a second transfer rate for transferring activity data that is displayable in substantial-real time on the computing device. The first transfer rate is set in response to scaling-up a connection interval and the second transfer rate is set in response to scaling-down the connection interval.