The Wii Remote Plus is an updated Wii Remote with built-in Wii MotionPlus hardware.
The Wii Remote Plus has the same physical dimensions of the standard Wii Remote and all compatible peripherals can be plugged into the base of the Wii Remote Plus as before, such as the Nunchuk or Classic Controller.
Functioning the same way as the Wii Remote with Wii Motion Plus connected together, the Wii Remote Plus enables players to see every twist of the wrist or arm brought to life on the TV screen, with the use of one compact controller.
Functioning in exactly the same way as the Wii Remote with Wii MotionPlus connected together the Wii Remote Plus enables players to see every twist of the wrist or arm brought to life and faithfully replicated on the TV screen with the use of one compact controller. Essential for certain Wii games like The Legend of Zelda: Skyward Sword or Wii Sports Resort as well as multiplayer Wii U games like Nintendo Land.
The Wii Remote Plus controller combines the intuitive motion controls of the original Wii Remote with the precision technology of the Wii MotionPlus accessory, all built-in to a single unit. The Wii Remote Plus also packs a speaker, rumble feature, and external connector for other input devices, like the Nunchuk controller and the Classic Controller.
If a is to be believed, the NX will indeed feature detachable controllers as Eurogamer previously mentioned along with basic motion control similar to that of the Wii Remote Plus and a form of “advanced vibration force feedback”.