NEO humanoid robot's new hands bring human-like dexterity closer to reality with force sensing

1X Unveils Advanced Robotic Hand Design for NEO Humanoid Robot

Norwegian robotics company 1X has introduced a breakthrough robotic hand design for its NEO humanoid robot, featuring 25-degree-of-freedom hands that promise to transform how humanoid robots interact with everyday objects 1

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. The tendon-driven hands represent what CEO and Founder Bernt Børnich calls "a critical threshold" in robotics, claiming that "the robot can now do the things humans do with their hands, every day" 1

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. The company has already begun production on a dedicated manufacturing line capable of producing up to 10,000 hands this year, signaling confidence in the technology's readiness for real-world deployment.

Force Transparency Enables Human-Like Dexterity Through Low Gear Ratios

Unlike conventional robotic hands that rely on high-ratio gearing between 100:1 or 200:1, the 1X Neo robot's hands use proprietary low gear ratios of approximately 5:1 to 15:1 [1](https://interestingengineering.com/ai-robotics/1x-unveils-robot-hands-neo-humano id)2

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. This fundamental design choice enables what 1X calls force transparency, allowing contact forces to pass back through the transmission so the robot can detect how hard objects push against its fingers 1

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. The hands are fully force-controlled and backdrivable across all 25 degrees of freedom—22 actuated joints across the fingers and palm, plus three at the wrist 1

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. This approach transforms each joint into both a motor and a sensor, a stark departure from traditional robotic hands where friction consumes contact force before reaching the motors, forcing them to operate blindly from the fingertips 2

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Precision and Strength Combined With Advanced Tactile Sensing

The NEO humanoid robot achieves impressive specifications that balance delicate manipulation with practical strength. The thumb generates peak torque of 3.5 Nm, while finger joints reach up to 2.6 Nm and fingertip flexion forces up to 45 newtons 1

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. The wrist produces 17.75 Nm of torque, supporting tool use, lifting, pushing carts and opening doors 1

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. Positioning accuracy reaches ±0.2 mm, enabling manipulation of small objects common in household and industrial environments 1

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. Each joint provides continuous proprioception, allowing the robot to determine finger and wrist positions without depending on cameras 1

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. High-resolution tactile sensors embedded throughout the fingertips and hand surfaces measure pressure, contact location and shear forces, helping detect slipping objects and adjust grip in real time 1

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Demonstrations Show Advancements in Humanoid Robotics Beyond Warehouse Tasks

The capabilities demonstrated by NEO extend far beyond typical warehouse-grade pick-and-place operations that have defined industrial robotics for decades. Demonstrations show NEO assembling LEGO models, picking up screws and coins, installing light bulbs, using screwdrivers, rotating objects within its hand, zipping jackets, sorting grapes, pouring tea, catching soft balls, plugging in USB-C connectors, holding wine glasses, wiping surfaces and performing sign language 1

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. These tasks represent activities robots have struggled with for years, requiring the kind of fine motor control and force feedback that separates household assistance from industrial automation 2

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IP68 Rating and Food-Safe Materials Enable Practical Household Use

Designed for real-world operation, the hands are IP68 waterproof, constructed from food-safe materials, and capable of washing themselves under running water 1

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. This feature addresses a practical barrier that has limited robots in domestic environments—the ability to handle messy tasks like cooking without creating additional cleanup work 2

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. The low-inertia tendon-driven design improves safety by allowing fingers to yield under unexpected impacts 1

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. Components and finger assemblies have been tested through millions of operating cycles, with wrist joints validated beyond two million cycles under heavy loads 1

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Hardware Exceeds AI Capabilities as Data Collection Becomes Priority

By manufacturing motors, tendons, electronics, tactile sensors and soft polymer skins entirely in-house, 1X aims to accelerate development through large-scale deployment and continuous data collection for embodied AI systems 1

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. The company acknowledges that hardware has already exceeded what current AI can handle, shifting the bottleneck from physical capability to artificial intelligence and training data 1

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. This recognition suggests that the uncanny valley debate may shift from robotic faces to fingertips, as hands become the true battleground of humanoid robotics 2

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. The narrative that hands, rather than legs or body, determine a humanoid robot's usefulness for tasks like folding clothes, sweeping and cooking gains credibility with these advancements in humanoid robotics 2

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. 1X recently began mass-producing NEO at a new California factory, advancing commercialization of home robots designed to assist with daily household tasks safely 1

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