Tactile Awakening, Dexterity Evolution: Vitian Launches GF515 Visual-Tactile Biomimetic Fingertip, Endowing Dexterous Hands with Human-like "Touch Feel"

“To enable robots to truly work like humans, relying solely on vision is not enough. They must have a ‘sense of touch’ like humans. This is the watershed that will determine the dexterity of the next generation of robots.” On March 14, at the product launch event themed “Tactile Awakening, Dexterity Evolution,” Dr. Li Rui, founder of Weitao Robotics, revealed a key industry insight.

Weitao Robotics Founder and CEO Li Rui

Human dexterity depends not only on vision but on the combined function of vision and touch. Vision is responsible for perceiving targets and environments, while touch perceives contact and controls details. Only through true hand-eye coordination can robots turn “seeing” into “doing.” Over the past decade, robots have gained “eyes and brains,” capable of seeing and calculating, but when they try to physically interact with the world, their biggest shortcoming is exposed—lack of “feel,” or human-like tactile perception.

Among various tactile technology approaches, vision-based tactile sensors (referred to as “visual-tactile”) are currently recognized by academia as the most advanced solution. Dr. Li Rui, the founder of Weitao, is a pioneer and leader in this field. During his PhD studies at MIT, he invented the world’s first visual-tactile sensor with resolution surpassing that of human fingers.

Against this backdrop, Weitao Robotics launched four new visual-tactile products covering sensing units, actuation units, and data collection systems—most notably, the biomimetic fingertip GF515, designed specifically for dexterous hands.

As the world’s first biomimetic fingertip integrating ultra-small size, ultra-high resolution, and ultra-high frequency, GF515 marks the first time that tactile sensing has moved from an “optional feature” to a core capability suitable for large-scale deployment in robots. It also brings dexterous hands closer to human-like “feel,” redefining industry standards for robotic tactile perception and setting a new starting line for the next generation of dexterous hands: freedom of movement is no longer the biggest barrier; human-like touch is. Whoever can develop “fingertip nerves” will have the opportunity to define the operating system of the next generation of robots.

This is not just a product launch but a leap in the logic of the robotics tactile industry. In the past, the industry emphasized freedom of movement, structural design, drive schemes, and motion control—who more closely resembles “human hands” seemed more advanced. But as applications deepen, it becomes clear: freedom of movement determines the upper limit of actions, while touch determines operational quality. Without tactile feedback, dexterous hands struggle to truly understand contact, control contact, and perform delicate tasks reliably in complex real-world scenarios.

Another major new product is the VT-UMI85, the world’s first industrialized platform that deeply integrates visual-tactile sensing with multimodal data. It systematically incorporates “contact” information into embodied intelligence training systems, marking a critical turning point in the evolution from “single vision” to “real contact.”

From fingertip nerves to data infrastructure, Weitao Robotics is accelerating to fill the most critical and missing piece in robot evolution.

Defining the Next-Generation Dexterous Hand, GF515 Installs “Nerve Endings” on the Fingertips

Traditional array tactile sensors include piezoresistive, capacitive, and Hall effect types. Due to issues like low resolution, inability to measure tangential forces/friction, and susceptibility to environmental interference, their performance lags far behind human hands.

In contrast, Weitao’s visual-tactile technology offers significant advantages: information point density increases by thousands to tens of thousands of times, multi-dimensional force data such as normal, tangential, and torque forces can be directly and precisely captured, and it can manipulate various flexible objects. It is also less affected by temperature, humidity, and electromagnetic interference, making it the most advanced tactile implementation path recognized today.

The GF515 biomimetic fingertip, released by Weitao, is specially designed for dexterous hands. It retains the advantages of visual-tactile sensing while achieving ultra-small size, ultra-high resolution, and ultra-high frequency, elevating overall performance to a new level and truly endowing robots with human-like “touch.”

At the launch event, a video vividly demonstrated GF515’s capabilities. A dexterous hand equipped with GF515 pinched a very fine needle and gently poked a full balloon—when the needle touched the surface, the balloon slightly dented but did not burst. The high-sensitivity multi-dimensional force sensing allowed the biomimetic finger to control the force precisely: too light, and contact was undetectable; too heavy, and the balloon would pop.

Next, the scene shifted. A mahjong tile was pressed against the finger, revealing the texture of each engraved line—surpassing human finger resolution. The dexterous hand then easily grasped a quail egg and potato chips, even soft leaves, without damage, demonstrating adaptive grasping of both hard and soft objects. It picked up a key and approached a lock, with multi-force sensing enabling real-time angle calibration during contact, guiding the key precisely into the lock. When a sharp needle rapidly stabbed the fingertip, a shocking moment occurred: the hand quickly retracted, seemingly “afraid of pain.” Thanks to ultra-high-frequency response, the sensor captured subtle force changes instantly, triggering real-time reflexes similar to human nerves.

From sharp to soft, rigid to fragile, this hand’s grasping ability is nearly indistinguishable from that of a human, capable of complex dexterous tasks such as lock opening, screw tightening, and tofu cutting. The key to achieving this is GF515 embedded in the fingertip—a sensor designed specifically for dexterous hands. When robots truly have “touch,” they evolve from mere repeaters to capable of adapting to the physical world.

Weitao GF515 product detail image

GF515 is the flagship product of Weitao’s latest release: the world’s first biomimetic fingertip combining ultra-small size, ultra-high resolution, and ultra-high frequency, extending high-density tactile sensing to every finger of a dexterous hand. Its standard size is only 15×27mm, comparable to a human fingertip, and can be made even smaller. Weighing less than 15 grams per unit, it integrates tens of thousands of tactile points per square centimeter—hundreds of times more than human hands—detects textures as fine as 10 micrometers, and can simultaneously sense normal force, tangential force, torque, and slip.

This indicates that the most scarce resource for dexterous hands is not computing power or algorithms but fingertip space. Those who can miniaturize high-performance visual-tactile sensors to such a degree will have a better chance of entering mainstream dexterous hand platforms and becoming the standard configuration for the next generation. Weitao’s approach is not merely miniaturization but embedding high-quality tactile sensing capabilities into the most critical part of the fingertip without sacrificing performance. This is the confidence behind GF515’s industry-standard redefinition.

Within such a tiny volume, GF515 integrates tens of thousands of tactile points per square centimeter. It can perceive not only contact but also how contact occurs: texture, distribution of normal and tangential forces, slip status, slip direction, and speed—captured in real-time with 10-micrometer resolution and millisecond latency. The challenge for dexterous hands is not applying greater force but understanding complex contact details precisely within limited space. GF515 enables the robot’s hand to truly “sense” contact, not just “touch.”

Its minimum detection threshold of 0.01N allows it to perceive contact changes lighter than a feather. With a high refresh rate of 120Hz, it can perform real-time closed-loop control during fast actions like grasping, pinching, flipping, turning, and inserting. This is not just about faster response but about giving robots a rhythm close to human nerve reflexes. With these groundbreaking metrics, GF515 is redefining industry standards for robotic tactile sensing.

Even more impressive, GF515 maintains top-tier performance while sensing multi-dimensional forces such as normal, tangential, torque, and slip, and has passed 5 million pressing cycles. It is not just a laboratory prototype but a robust industrial-grade product ready for integration into mainstream dexterous platforms and production lines.

“Freedom of movement determines the upper limit of actions, but touch determines the quality of operation,” Li Rui pointed out. “GF515’s significance is not just adding a sensor to dexterous hands but providing them with true ‘fingertip nerves.’ When robots have a sense of touch, dexterous operation truly begins.”

This statement holds because the significance of tactile perception for dexterous hands is akin to nerve endings for human hands: it decides whether you can perceive the external environment, understand contact details, perform real-time corrections, and ultimately execute complex fine operations. The future of defining dexterous hands will not depend solely on structural resemblance to human hands but on enabling robots to truly understand, master, and utilize touch. Whoever can develop “fingertip nerves” will have a greater chance to define the operating system of the next generation of robots.

This is the value of GF515 beyond a single product—it makes tactile sensing a “must-have” rather than an “option,” transforming from a “bonus” to a “threshold.” Weitao’s work is not just about launching a leading sensor but about establishing a new understanding that “touch is the primary productivity” in robotics. In this sense, GF515 marks the beginning of the transition from “appearance resemblance” to “spirit resemblance” in dexterous hands and is a foundational step toward robots truly integrating into the physical world, holding epoch-making significance for dexterous manipulation.

From concept to industrialization, scalability, and sustainable iteration, this is more than a product—it’s the start of a new track.

From “Seeing” to “Touching,” VT-UMI85 Integrates “Tactile” into Data Infrastructure

If GF515 is about adding “nerve endings” to dexterous hands, then the debut of the VT-UMI85 visual-tactile data collection system directly addresses another core puzzle of embodied intelligence: the long-standing lack of real contact data.

In the past, collecting real-world data was costly—bulky equipment, complex operation, reliance on custom environments—while traditional UMI data collection devices only captured visual data, leaving the “contact” dimension largely absent from AI training systems.

Weitao VT-UMI85 visual-tactile data collection system product detail image

VT-UMI85 breaks this deadlock. Weighing only 500 grams, it is lightweight and portable, capable of naturally collecting data in real scenes. It integrates multimodal information including visual-tactile, RGB-D, IMU, encoders, pose trajectories, and gripping states, with millisecond-level time synchronization to ensure 100% reproducibility of data.

“Future valuable robot data will not be just visual or motion trajectory data but multimodal data tightly coupled with real contact processes,” Li Rui emphasized.

More importantly, VT-UMI85 is not an isolated collection device but a complete data workflow entry point. From collection to playback, from training to evaluation, it connects the entire “capture—train—validate—deploy” closed loop, enabling universities, algorithm teams, and industry clients to bypass the need for building tools from scratch and directly access an effective embodied intelligence data cycle.

“The upper limit of future models depends on the upper limit of data, and the upper limit of data depends on whether you can incorporate real contact, real feedback, and high-quality, stable data into training systems,” Li Rui stressed. “VT-UMI85 elevates tactile capability into data capability, pushing Weitao from a core component supplier to a more foundational, long-term platform position.”

This data capability has already achieved milestone results. Recently, Weitao partnered with the National and Local Humaniform Robot Center to release the world’s largest cross-ontology multimodal visual-tactile dataset—“Baihu-VTouch.” It consolidates tactile, visual, and pose information into a unified training system, providing critical contact perception data support for embodied intelligence, and is dubbed the “ImageNet moment” for embodied intelligence.

In addition to these two flagship products, Weitao also launched two mature industrial products suitable for broad industrial scenarios: GF220 two-finger sensor, with a compact design weighing 45g and 47% smaller, achieving millinewton-level force sensing and 10-micrometer resolution, supporting high-speed multi-dimensional force feedback for precise assembly; and VT-GRIPPER90 tactile gripper, upgrading traditional grippers with sensing and actuation units, capable of real-time slip and contact detection for gentle grasping.

Leading Clients Validate, Accelerating Weitao’s Industry Footprint

From fingertip nerves to data infrastructure, and from tactile capabilities of dexterous hands to the data loop of embodied intelligence, these four new products are backed by fifteen years of deep expertise from Weitao’s founding team.

Founder Dr. Li Rui graduated from MIT’s Computer Science and Artificial Intelligence Laboratory, mentored by the American academic and AI pioneer Edward Adelson.

During his time at MIT, Li Rui co-developed the research path for robotic visual-tactile sensors, inventing the world’s first high-resolution visual-tactile sensor surpassing human fingers—the GelSight fingertip sensor. It outperforms traditional tactile solutions by over ten thousand times, published foundational and leading papers at CVPR, IROS, ICRA, and other top conferences, with multiple “Best Paper” awards. This pioneering work has been widely cited and adopted by top universities like MIT, Stanford, Berkeley, CMU, Tsinghua, Peking University, and industry giants such as Meta, Google, and Toyota Research Institute. It is recognized as the best tactile implementation path and has become the mainstream research direction in the field. Today, Weitao continues to advance this innovation from research to productization, industrialization, and large-scale deployment.

On the commercial side, Weitao has partnered with leading companies across 3C, automotive, home appliances, and new energy sectors. Li Rui revealed that Weitao has established deep collaborations with Fortune 500 companies like Xiaomi, major international automakers, top logistics firms, and leading embodied intelligence companies, applying their technology in unordered adaptive grasping, precise placement and assembly, and flexible object manipulation. Whether in precise automotive component assembly, fragile item handling in food and medical fields, or flexible cable and fabric processing, the common requirement is high-resolution tactile sensing and real-time closed-loop control.

From precision manufacturing to consumer applications, from industrial lines to cutting-edge research, Weitao’s visual-tactile product matrix is being deployed across multiple dimensions. As Li Rui summarized at the end of his speech: “Weitao aims to make visual-tactile sensing truly a platform-level capability for robots.”

From initial invention to industry deployment, Weitao is advancing along this path, pushing robots from merely “moving” to truly “doing.” As Li Rui stated in his MIT PhD thesis: Touching is Believing. When tactile sensing becomes a platform-level capability, what we see will no longer be just machines executing preset programs but intelligent beings capable of perceiving, understanding, and interacting genuinely with the physical world. The title of Weitao’s new product launch—“Tactile Awakening, Dexterity Evolution”—not only signifies opening a new chapter for robotic “feel” but also marks the beginning of robots truly achieving dexterity and ingenuity.