Researchers at the Massachusetts Institute of Technology (MIT) say the fingers respond intelligently to human movement, allowing users to perform two-handed tasks with just one hand.
The glove's creator Harry Asada said: "You do not need to command the robot, but simply move your fingers naturally.
"Then the robotic fingers react and assist your fingers."
He worked with graduate student Faye Wu to analyse the gripping motion of a hand using a motion-sensor glove.
They then developed an algorithm so the robotic fingers responded to complement the movement of the human hand.
They say it could help elderly or disabled people live more independent lives.
In a video they demonstrate the robot fingers holding a box while the human fingers opened the lid.
But there are some drawbacks. For one, the robot fingers do not flex, limiting their abilities.
They also do not take into account the force of the grip, something the researchers are working on.
Ms Wu said: "With an object that looks small but is heavy, or is slippery, the posture would be the same, but the force would be different, so how would it adapt to that?
"That's the next thing we'll look at."