Better WiFi and Bluetooth controls
In the first version of Lollipop, Wi-Fi and Bluetooth controls were quite tiring and you had to tap to navigate to the Settings panel to get anything done, even if you simply wanted to switch Wi-Fi networks.
But with the new feature in 5.1 you can choose a Wi-Fi network or Bluetooth profile directly from within the drop-down panel. You just have to tap an arrow to expand the listing.
