Those who have a subscription to the Amazon Music will have an additional features and improve UI added to their service.
The support for Android Wear allows users to browse the Amazon Music app, users can also control their music on their Android Wear watch. The upadte also allows users to download songs directly on the phones SD-card. There are some changes on the UI of the Amazon Music app, adding “New to Prime”. “Popular” and other additional menus to improve how users play and enjoy music.
Description: Prime members enjoy unlimited, ad-free access to over a million songs, expert-programmed Prime Playlists, and ad-free Prime Stations for FREE. Listen anytime, add to your collection or download to play offline.