Based on where you are and what you're doing, you'll see Assist suggestions in the status bar.

Drag the bar down and touch the notification to set your preferences for when you're sleeping or attending a meeting.

Control your phone with gestures. Twist your wrist twice quickly to open the camera from any screen.

See what's going on while your screen sleeps. Notification icons quietly appear and disappear on the screen, giving you a peek at notifications while using very little power.