Having installed IOS 11 GM I am just confused as to how much health data I actually have. In both IOS 10 and 11 the iCloud backup says there is 5.25 GB of data but in IOS 10 the next backup size was always around 1.9 GB and IOS 11 is saying its only 354 MB. Health data is the only major thing that changes regularly on a data basis ( > 2 yrs Watch with 2 x 1 hr activities daily ) so intrigued why the backup size has dropped so much. I have also enabled storing my health data in iCloud and that is currently showing the amount of data stored as 41.8 MB That is a huge difference to the 5.25 GB of data reported under iCloud backup so it makes me wonder is all my health data being stored in iCloud? Does anyone have any insight as to what is dappling here please?