Questions about Android Wear

Hi

I'm very curious about one thing in Android Wear - how are notifications ranked?

1. Since Google Now notifications and app notifications are together on Android Wear, which ones are nearer the top? Are Google Now cards always at the bottom because they show low priority information? Or it depends on the relevance of that particular notification? Is the ranking mainly time-based or it uses some smarter algorithm such that, for example, a notification from Clash of Clans just came in but it'll be below a driving time to work/home card from Google Now?

2. Are the Google Now notifications on Android Wear somewhat equivalent to the Google Now notification in Android's notification center or the cards in the Google Now/Search app on Android?

Thanks.