Abstract: The invention relates to a method of providing an indication of a body composition parameter to a user. The method includes receiving a data value indicative of a body composition parameter, providing the data value to a first buffer, the first buffer storing data values received over a first given time period, comparing the data value with a first tolerance range determined from data values stored in the first buffer over the first given time period. If the data value falls within the first tolerance range, the data value is provided to a second buffer, the second buffer storing those data values provided from the first buffer over a second given time period longer than the first given time period. an indication of the body composition parameter is provided to the user based on an average of the data values stored in the second buffer.