Health data in iCloud - storage size

[Khorn]

Just a quick question.
Is it normal that health data takes significantly less space in iCloud than on device.

At the moment I have close to 400MB data on iPhone storage but only 65MB in iCloud sync.

 

[Lightside]

The difference could be due to compressing and encrypting your health data in the iCloud.

How to sync your Health data to iCloud

iOS 11 brings a major change to how Apple handles your Health data. Here's how it works.

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