What is the Aigility Pivots?
The Digit v4 (Pivots) is a humanoid research robot from Agility Robotics, based in Tangent, Oregon. It is a specialized variant of the proven Digit bipedal platform, upgraded with a pivot-joint spine that grants superior lateral bending and twisting motion—crucial for sideways reach and full-body manipulation tasks. Designed for academic and industrial labs, it retains Digit’s legacy of robust dynamic walking, carrying capacity, and sensor suite, while the articulated torso unlocks new avenues in locomotion control, whole‑body planning, and human‑robot interaction.
Specifications
Here are the full technical specifications.
| Spec | Value |
|---|---|
| Height | 180 cm |
| Weight | 76 kg |
| Degrees of freedom | 28 |
| Battery life | 1 hour |
| Max speed | 5.4 km/h |
| Walking speed | 5.4 km/h |
| Payload | 15.8 kg |
| Spine mechanism | Pivot‑joint allowing lateral bending |
| Navigation rating | 3/5 |
| Manipulation rating | 3/5 |
| Price (new) | $45,000 |
| Price (used range) | N/A |
Price & Value
New MSRP: $45,000
Used range: N/A
At $45,000, Digit Pivots occupies a unique niche among humanoid research platforms—far less than the typical $100k+ of many full‑size bipeds, yet pricier than the promised sub-$20k Tesla Optimus. This price reflects a mature, field‑proven platform infused with a novel spine articulation, giving labs a tangible edge in whole‑body motion research without the custom development cost. Value is strongest for groups that can exploit the torso for manipulation or locomotion studies; those needing only standard walking may opt for the base Digit v4 at a lower cost. As a limited‑run research variant, depreciation is likely minimal, though maintenance costs and proprietary actuator servicing should be factored. Total cost of ownership may be higher than the list price suggests, given the inevitable need for software integration and technician hours.
Who Is It For?
Best for: - Bipedal locomotion labs studying spine‑assisted balance, dynamic turning, and lateral agility (the pivot spine enables yaw and roll motion unattainable in rigid‑torso humanoids). - Research groups focused on whole‑body manipulation where reaching to the side, crouching while twisting, or torque‑based object handling is central to their projects. - Universities with active robotics programs and the in‑house expertise to deploy advanced walking controllers—Digit Pivots comes with a mature software stack and simulation tools.
Not for: - Heavy industrial deployment—the 15.8 kg arm payload limits lifting force, and the 1‑hour battery is insufficient for continuous shift work. - Budget‑constrained education or STEM outreach—the $45,000 cost and complexity demand dedicated research funding and trained operators.
Alternatives & Comparison
Digit Pivots competes for the attention of research labs that will eventually select one flagship humanoid for experiments. Below it stands against other 2026‑era full‑scale humanoids that are either promised or already available in small numbers.
| Model | Price | Available | Key Difference |
|---|---|---|---|
| Tesla Optimus Gen 2 | ~$20,000 (est.) | no | High‑dexterity hands, Tesla AI stack, but no spine articulation and still pre‑commercial. |
| Figure 02 | Undisclosed | enterprise‑only | Advanced manipulation with human‑like hands and high payload, but torso is rigid. |
| 1X NEO | Undisclosed | preorder | Lightweight, wheel‑base and inherently safe near humans, but lacks bipedal locomotion and spine flexibility. |
Verdict: If your research question directly involves torso flexion or twisting—be it for bipedal agility, reaching into car trunks, or fluid human‑robot teamwork—Digit Pivots is the only choice. For pure manipulation dexterity, Figure 02’s hands are ahead; for vision‑based AI integration at low cost, Tesla Optimus may appeal once available. 1X NEO suits safety‑critical environments but cannot walk in human spaces like Digit. Unless spine function is irrelevant, the Pivots variant gives you a capability that no other humanoid in this group offers today.
Use Cases & Capabilities
Dynamic Locomotion Research with Spine Actuation
Researchers can program gait transitions that actively use the pivot spine to maintain balance on uneven terrain, execute tight turns without foot slippage, and improve energy efficiency by reducing upper body sway. The additional degree of freedom lets teams experiment with neural control policies that coordinate legs and torso in real time, something impossible on a rigid humanoid. Integrating IMU and torque feedback from the spine joint also enables more natural fall recovery strategies, making Digit Pivots a powerful tool for advancing bipedal robotics beyond sagittal‑plane walking.
Whole‑Body Manipulation in Confined Spaces
Warehouse shelving, assembly lines, and vehicle interiors often demand that a humanoid reach sideways or downward while maintaining upright posture. The pivot spine allows Digit Pivots to lean and twist without straining leg joints, effectively doubling the usable workspace of its arms. Researchers can benchmark tasks like retrieving items from low or side‑mounted shelves, tightening bolts at awkward angles, or holding a tool while crouching. Because the torso can act as a counterweight, the robot can handle heavier off‑center loads than a rigid‑back competitor, opening studies into safe human‑robot co‑manipulation.
Human‑Robot Interaction and Non‑Verbal Communication
A socially intelligent robot uses torso orientation and subtle leans to convey intent, attention, and empathy. Digit Pivots’ spine makes these signals physically possible; labs can investigate how people perceive a robot that can tilt its head and upper body toward a conversation partner, or that leans back to indicate surprise. Combined with the existing head and arm motions, the platform becomes a testbed for full‑body gesture generation algorithms. This application extends into assistive robotics, where a caregiver robot might bend laterally to assist a seated person without stepping closer.
Logistics Prototyping with Spine‑Enhanced Reach
Agility’s core market is logistics, and Digit Pivots lets industrial R&D teams explore how an articulated spine could improve package handling on real warehouse floors. The pivot joint enables a static stance while reaching across wide conveyor belts or into deep bins, potentially reducing cycle times compared to a robot that must walk or over‑rotate its waist. Facilities can test integration with WMS software and evaluate whether the extra reach translates to fewer steps per task—a key metric for return on investment when commercial spine variants eventually ship.
History & Background
Agility Robotics was founded in 2015 on the back of bipedal walking breakthroughs at Oregon State University’s Dynamic Robotics Laboratory. The original Cassie robot (2017) proved robust dynamic walking, and the first Digit (2019) added an upper body, arms, and sensors for practical logistics tasks. Digit v2 and v3 iterated on payload and endurance, and in 2023 Agility disclosed a research upgrade dubbed Digit v4 (Pivots), which replaced the rigid torso with a pivot‑joint spine enabling natural lateral bending. This variant was aimed squarely at academic and industrial labs seeking to explore whole‑body agility and manipulation. Agility continues to ship the commercial Digit v4 for logistics customers, while the Pivots model remains a low‑volume research offering available via direct inquiry.
Buying Used — What to Check
Verify spine joint health The pivot joint is the unique, wear‑prone component. Request service logs or articulation videos before purchase.
Confirm battery capacity After heavy use the 1‑hour runtime may degrade; a capacity test ensures the platform still meets your experimental needs.
Check software transferability Digit’s control stack may be tied to Agility’s maintenance plan. Ensure you can obtain updates and simulation models with the hardware.