Watch top, app on the street

Possessor of an older generation of Polar, I wanted to spend on a more advanced and equipped with a GPS watch.
This watch had to meet my expectations in a range of prices rather convenient features to looks.
Side shows, I'm pretty happy: quick GPS fix, clear and customizable views of data, good ergonomics and easy operation. almost without fault.
Side app, disaster. Unable to sync data bluetooth, poor synchronization between the website and app. The total foirage of the application makes hyper frustrating user experience. I do not know how to talk SAV Polar that has only one answer to wait for the next update, the problem is well known at home.
If you do not expect much from the app, go it's a great show. Otherwise go your way ... or wait for the next update!