This week Boston Dynamics retired its well-known Atlas robot that was powered by hydraulics. Then today it unveiled its new Atlas robot, which is powered by electricity.

The change might not seem like much, but TechCrunch’s Brian Heater told the TechCrunch Minute that the now-deprecated hydraulics system was out of date. It’s not hard to spot why Boston Dynamics, owned by Hyundai, wanted to go electric. Its new Atlas robot is leaner, and appears to have improved range-of-motion. Size and ability to contort and maneuver are not cosmetic elements to a humanoid robot — they can unlock new use cases and possible work environments.