The XGO is a lap-size robot dog, marketed as "a metal pet on your desk," but it's primarily sold as a learning tool for programmers with an interest in machine vision and robotic automation. Robot pet fans should know, however, that this metallic mutt has more in common with Boston Dynamics' ominously-styled Spot than with Sony's consciously cute Aibo, with a remarkably well-made and solidly engineered metal body. Luwu Dynamics is clear that the XGO-Mini2 is more of a tool than a companion. Also, at $849, it is much more affordable and considerably more open to tinkering than Sony's $2,900 robot pet and more than $73,000 cheaper than Boston Dynamics' robotic quadruped. The XGO range, as it's sold, is fundamentally a robot body peripheral for a Raspberry Pi compute module.