HKHeartRateSensorLocation.earLobe The heart rate sensor is located on the user’s earlobe. Declarationcase earLobe See AlsoLocationsHKHeartRateSensorLocation.otherHKHeartRateSensorLocation.chestHKHeartRateSensorLocation.wristHKHeartRateSensorLocation.fingerHKHeartRateSensorLocation.handHKHeartRateSensorLocation.foot