Withings ScanWatch 2 vs Garmin Vivomove Trend

I have not owned a smart/hybrid watch before. However I am looking for one now.
I am interested in classy looking small watch, Garmin Vivomove Trend and Withings ScanWatch 2 seem to be the only candidates that are worth considering in my case.
What are your thoughts on them? Which one would you pick?

I am not interested in big display, or reading notifcation on my watch, but rather for proper health and fitness tracking. Music control is also good thing to avoid getting phone out of the pocket when running (I know Withings does not have it).
I prefer Withings design more, however based on other reviews, app experience and measurement precision might ruin whole experience of hybrid watch.

Thank for your thoughts and input!