To be fair, Apple does this too to some extent. However, given their most recent commercial re privacy and all of their public statements on the topic, I don't expect them to exploit it for profit quite so shamelessly.
In Apple land all health data stays on device, not in the cloud like Google/FitBit
Sounds like a solid sales pitch to me.
Similar impact from a privacy perspective (assuming crypto is unbreakable), but the data certainly is synced.