For those working on embodied AI, hasn't a “high-DoF dexterous hand” long been a bottleneck?
To move from “kinematic validation” to “multimodal sensorimotor manipulation,” R&D teams often have to compromise between fragile hardware, tedious maintenance, and prohibitive costs. The dexterous hand always seems to be the expensive, progress‑slowing consumable.
Today, Stella‑Robot officially presents a game‑changing answer: the Gaia Hand 20 Series – a general‑purpose dexterous hand development platform for embodied AI – is now on sale!
Based on fully in‑house developed micro‑actuator modules, we have completely re‑architected the hardware of the dexterous hand. With standardized structure, open interfaces, and exceptional maintainability, the Gaia Hand 20 is designed to help developers overcome hardware barriers and focus their invaluable energy on algorithms and applications.

Six core advantages – the solid backbone of a general manipulation platform
As the super execution end for embodied AI, the Gaia Hand 20 delivers top‑tier capabilities across the board:
1. Extreme modular hot‑swap – replace a joint in < 5 minutes!
Traditional dexterous hands are often black boxes where “a single move affects the whole system” – damage one part and the whole unit must be shipped back. The Gaia Hand 20 features an industry‑leading joint‑level modular architecture. When a joint wears out, developers can easily replace it on‑site in the lab or workshop – in less than 5 minutes! This dramatically reduces system downtime and keeps your model training running 24/7.
2. 20 DoFs ultra‑high freedom – human‑like dexterity maxed out
Dexterity defines the upper bound of manipulation. The Gaia Hand 20 comes standard with 16 active + 4 passive degrees of freedom, combined with a biomimetic thumb structure and an underactuated design for the distal interphalangeal joint. Whether grasping, pinching, or handling complex tools, it moves as nimbly as a human hand, faithfully reproducing high‑precision manipulation intent.
3. Tiered tactile matrix – build capabilities on demand, no forced over‑spec
Not every R&D stage requires expensive multimodal tactile sensing. We break from the industry convention of stacking specs. Instead, we pioneer a “tiered tactile” philosophy: from zero‑tactile (pure kinematics) to fingertip contact sensing, then to full‑palm force sensing (0.1N resolution) and texture perception – you choose what you need. This on‑demand approach saves developers unnecessary hardware costs from the start.
4. Extreme payload‑to‑weight ratio – unleash the end‑effector potential
Shattering the stereotype of “looks good but useless”! The ultra‑lightweight structure weighs only ~790g yet achieves a maximum payload of 15kg. It preserves fingertip agility while maximizing the effective payload capacity of your robot arm.
5. Extreme reliability – tough, durable, worry‑free
The entire series has passed >200,000 full‑stroke fatigue tests. It supports accidental power‑off self‑locking, protecting expensive lab equipment and ensuring operator safety. Say goodbye to “fragile product” anxiety.
6. Sim2Real open ecosystem – bridging virtual and reality
Deeply compatible with mainstream physics simulation environments such as Isaac Sim and MuJoCo. We provide unified high‑fidelity models, drivers, and interfaces, making policy transfer from simulation to reality exceptionally smooth.
