Filtering a physiological signal using a pressure sensor signal to generate a physiological measurement

A non-transitory, computer-readable storage medium including executable instructions that, when executed by one or more processors, cause the one or more processors to perform or cause performance of:

• receiving a contact pressure signal from a pressure sensor coupled to a circuit board within a capsule of a wrist-wearable device donned by a user;
• receiving a physiological signal from a physiological sensor coupled to the circuit board;
• and
• in accordance with a determination, based on the contact pressure signal, that first motion artifact criteria is satisfied:
• determining, based on the contact pressure signal, first motion-artifact adjustments to the physiological signal, and
• generating, based on the first motion-artifact adjustments, a first motion-artifact compensated physiological signal;
• in accordance with a determination, based on the contact pressure signal, that second motion artifact criteria is satisfied:
• determining, based on the contact pressure signal, second motion-artifact adjustments to the physiological signal, and
• generating, based on the first motion-artifact adjustments, a second motion-artifact compensated physiological signal;
• and
• determining a physiological measurement based on the first motion-artifact compensated physiological signal or the second motion-artifact compensated physiological signal.

A wrist-wearable device comprising:

• a capsule including a backplate portion configured to couple to a wrist of a user;
• a circuit board within the capsule of the wrist-wearable device;
• and
• one or more processors including one or more programs, the one or more programs comprising instructions, which, when executed by the wrist-wearable device, cause the wrist-wearable device to:
• receive a contact pressure signal from a pressure sensor coupled to the circuit board;
• receive a physiological signal from a physiological sensor coupled to the circuit board;
• and
• in accordance with a determination, based on the contact pressure signal, that first motion artifact criteria is satisfied:
• determine, based on the contact pressure signal, first motion-artifact adjustments to the physiological signal, and
• generate, based on the first motion-artifact adjustments, a first motion-artifact compensated physiological signal;
• in accordance with a determination, based on the contact pressure signal, that second motion artifact criteria is satisfied:
• determine, based on the contact pressure signal, second motion-artifact adjustments to the physiological signal, and
• generate, based on the first motion-artifact adjustments, a second motion-artifact compensated physiological signal;
• and
• determine a physiological measurement based on the first motion-artifact compensated physiological signal or the second motion-artifact compensated physiological signal.