SpotMini is a four footed beast with an odd-look. In place of a neck and head it has a robotic arm. It is this gripper which manipulates objects, and fetches and carries them.
It would not be wrong to say that SpotMini is a human toddler crossed with an overgrown puppy, crossed with the robot maid/butler.
Boston Robotics said that SpotMini weighs 55 lbs, 65 lbs including g its arm. It is all-electric (no hydraulics) and runs for about 90 minutes on a charge.
The robot comes loaded with a variety of sensors, including depth cameras, a solid state gyro (IMU) and proprioception sensors in the limbs. These sensors help with navigation and mobile manipulation.