Spot Classic is a four-legged robot designed for indoor and outdoor operation. It is electrically powered and hydraulically actuated. Spot Classic has a sensor head that helps it navigate and negotiate rough terrain. Spot Classic weighs about 160 lbs.
![Introducing Spot by Boston Dynamics - YouTube](https://cdn-ak-scissors.b.st-hatena.com/image/square/b3cc02319d8338db6cae08ffcf7677af4c2213db/height=288;version=1;width=512/https%3A%2F%2Fi.ytimg.com%2Fvi%2FM8YjvHYbZ9w%2Fhqdefault.jpg)