An apparatus for use with a wearable cuff , wherein the wearable cuff is for use in measuring blood pressure and the apparatus is configured to: acquire a plurality of pressure signals, wherein each of the plurality of pressure signals are indicative of a pressure in the wearable cuff during a period for measuring blood pressure; for each of the plurality of acquired pressure signals, identify artifacts in the acquired pressure signal and determine a measure of a quality of the acquired pressure signal based on one or more parameters derived from artifacts identified in the acquired pressure signal; and determine a measure of a quality of the wearable cuff based on the determined measures of the quality of the acquired pressure signals, wherein the one or more parameters comprise any one or more of: a number of occurrences of artifacts in the acquired pressure signal; a number of occurrences of artifacts in the acquired pressure signal that fall within a cardiac cycle; an average time between occurrences of artifacts in the acquired pressure signal; an average intensity of artifacts in the acquired pressure signal; a ratio of a cumulative sum of amplitudes of artifacts in the acquired pressure signal to a cumulative sum of amplitudes of oscillations in the acquired pressure signal; a ratio of an average of amplitudes of artifacts in the acquired pressure signal to an average of amplitudes of oscillations in the acquired pressure signal; and a ratio of a maximum of amplitudes of artifacts in the acquired pressure signal to a maximum of amplitudes of oscillations in the acquired pressure signal. acquire a plurality of pressure signals, wherein each of the plurality of pressure signals are indicative of a pressure in the wearable cuff during a period for measuring blood pressure; for each of the plurality of acquired pressure signals, identify artifacts in the acquired pressure signal and determine a measure of a quality of the acquired pressure signal based on one or more parameters derived from artifacts identified in the acquired pressure signal; and determine a measure of a quality of the wearable cuff based on the determined measures of the quality of the acquired pressure signals, wherein the one or more parameters comprise any one or more of: a number of occurrences of artifacts in the acquired pressure signal; a number of occurrences of artifacts in the acquired pressure signal that fall within a cardiac cycle; an average time between occurrences of artifacts in the acquired pressure signal; an average intensity of artifacts in the acquired pressure signal; a ratio of a cumulative sum of amplitudes of artifacts in the acquired pressure signal to a cumulative sum of amplitudes of oscillations in the acquired pressure signal; a ratio of an average of amplitudes of artifacts in the acquired pressure signal to an average of amplitudes of oscillations in the acquired pressure signal; and a ratio of a maximum of amplitudes of artifacts in the acquired pressure signal to a maximum of amplitudes of oscillations in the acquired pressure signal. a number of occurrences of artifacts in the acquired pressure signal; a number of occurrences of artifacts in the acquired pressure signal that fall within a cardiac cycle; an average time between occurrences of artifacts in the acquired pressure signal; an average intensity of artifacts in the acquired pressure signal; a ratio of a cumulative sum of amplitudes of artifacts in the acquired pressure signal to a cumulative sum of amplitudes of oscillations in the acquired pressure signal; a ratio of an average of amplitudes of artifacts in the acquired pressure signal to an average of amplitudes of oscillations in the acquired pressure signal; and a ratio of a maximum of amplitudes of artifacts in the acquired pressure signal to a maximum of amplitudes of oscillations in the acquired pressure signal. <EOS>