Meet the Youbionic Hand: a bionic hand that was 3D printed as a single piece. It is driven using muscle sensors, Arduino, and servos. It is designed to replace or assist a limb. This €1,200 robotic hand is easy to use. You will just have to wear it, attach the electrodes, and flex your muscles.
As you can see in this video, the Youbionic hand can be used to pick up keys, grab bottles, and do everything in between.