Some of the features of the Joy Con controllers were explained today.
Each Joy Con has a set of buttons, a control stick, and an analogue trigger. There is also an NFC Reader/Writer for use with Amiibos, a capture button to share screenshots and gameplay video. Motion controls are making a return as each one has a gyroscope and an accelerometer. When held sideways, there are two trigger buttons to use.
Along with Black Joy Cons, there will also be Blue and Red, along with grips and wrist straps. Finally, there are IR sensor cameras which can sense how far away an object is, as well as haptic feedback, which recreates the sense of touch!