Meet the MechArm 270 Pi from Elephant Robotics: a 6-axis robot arm for makers, programmers, and everyone in between. It has a compact, lightweight design, so you can easily fit it in your back. It has a working radius of 270mm and max payload of 250g. This robot is ready for Python, C#, and C++. It can also be programmed via drag & drop. It has a Raspberry Pi 4 brain.
This robot has open source interfaces and is ready for object/facial/image recognition. It supports ROS development. You can find out more about it here.