I am confused by how Apple Watch and iPhone keep step counter data. I am aware that iPhone itself can use the motion co-processor to act as a pedometer to send data to the Health app. Won't this interfere with the pedometer data collected by the Apple Watch (independent from the phone) which are ALSO synced to the Health app? Is this interference also true for all other similar health data collected separately by both the watch and the phone? How do I disable the health data collected exclusively by the iPhone's hardware so that the health data shown in the Health app are exclusively those collected by the Watch only?