musk says the hand is 60% of the engineering difficulty of an entire humanoid. in china that part already ships by the thousand, and xynova is building the precise end of it

a leg has one job – push against the floor, and the floor is always the same. a hand has to work with every object there is, and that takes around 27 degrees of freedom, a human hand's worth, squeezed into the space of a palm. put that many motors in there and the hand gets too heavy to move, so tesla moved all 25 of them into the forearm and pulls the fingers with cables instead.

and the mechanics are only half of it: the hand has to sense force finely enough to tell a full glass from an empty one, and tighten its grip the moment something starts to slip, which no software can plan ahead because every object slides differently.

@Xynovaofficial_'s answer is the flex 2 – 400 grams, 23 degrees of freedom, 12 kg grasp load, force control down to 0.05 newtons, about the weight of a paperclip. a control layer they call an artificial cerebellum runs that correction in the hand itself.

china's field is already crowded: inspire shipped 10,000 hands in 2025, linkerbot moves over 1,000 a month, unitree builds its own, most of them competing on price at around $5k. xynova sells precision instead: 0.1mm repeatability, closer to a machine tool than a research hand.

catl capital led the angel round, xiaomi kept adding, meituan led the latest at 500m yuan – four rounds in under two years, around $210m, all for a hand. 635 orders so far, motors and reducers made in-house, 10,000 hands a year targeted by the end of 2026.

the hand used to be the exotic part of a humanoid, and china is turning it into something you order like any other component.