Here is an affordable 3D printed bionic arm that can make life easier for amputees. It weighs only 1.5 pounds and is made to match your skin tone. It uses vibration cues to give you a sense of touch. This prosthetic arm has 36 sensors in its socket to give you 360-degree residual limb coverage.
TrueLimb is made with PA12 Nylon. It lasts all day on battery and can be recharged using USB-C.