Android 5.0 vs Android 4.4 Walkthrough: What’s New in Lollipop

Android 5.0 vs Android 4.4 - Dialer & Contacts

With Android 5.0 the dialer and contacts apps still look about the same, but have some subtle tweaks and larger font. There's more color in the dialer, and a floating dialer button to go from contacts right to the dialer with ease. You can long-press any contact picture to rearrange as you see fit.