Robotics Insights
Original Title: Unitree G1+ VS Digit 5, Walking on Two Different Paths
On September 14, Unitree released the G1+, with the standard version priced at CNY 95,000 including tax. The next day, Agility Robotics released Digit 5 without announcing a price.
Released just a day apart, they are easily placed in the same comparison chart. However, looking at the two machines side by side reveals they are hardly the same type of product: one is 1.34 meters tall and weighs 35 kg, while the other is 1.81 meters tall and weighs 129 kg; one targets universities and developers, while the other targets factories of GXO, Amazon, Schaeffler, and Toyota.
The difference does not lie in which is more advanced. The problems they were designed to solve are simply not the same.
01. A 94 kg Weight Difference First Determines Where They Can Go
The standing dimensions of the G1+ are approximately 1340×450×200 mm, and when folded, it shrinks to 690×450×300 mm, small enough to fit into a car trunk. The whole machine has 25 degrees of freedom (DoF) in its joints: 2 in the head, 1 in the waist, 6 in each leg, and 5 in each arm; the EDU version can be expanded to 25+45, adding a 3-DoF waist and a 7-DoF dexterous hand.
Digit 5 is on another level. It stands 1.81 meters tall, weighs 129 kg, and has a maximum reach height of 2.2 meters—the previous generation, Digit 4, was only about 1.68 meters tall. These two numbers are not for showing off: 2.2 meters is enough to reach the top layer of standard shelves, and a 1.81-meter frame can pass through aisles, door frames, and workstations designed for humans.
The size of the G1+ serves the purpose of "humans can carry it away," while the size of Digit 5 serves the purpose of "it can carry things for humans."
02. They Are Not in the Same Evaluation System
The keywords for the G1+ are motion, perception, and interaction.
The neck adds 2 DoF, with pitch from approximately -25° to 36° and yaw of ±110°; the peak torque of the shoulder and waist motors increases by 110%, while heat generation at the same torque drops by 72%; the peak torque of the arm motors increases by 43%, and heat generation at the same torque for the thigh motors drops by 28%. Vision consists of binocular plus wide-angle monocular, paired with a 3D LiDAR and an abdominal wide-angle camera; the head integrates 5 touch points, a six-microphone array with four in the front and two in the back handles far-field audio capture, and a pair of 10-watt speakers is installed on the waist. The back also retains a DC 54.6V/5.7A external power port for convenient long-term display or running experiments. The maximum load for a single arm is about 3 kg.
The keywords for Digit 5 are payload, endurance, and safety.
The maximum payload is 22.7 kg, a 40% increase over the previous generation; battery life is 90 minutes, with a 9-minute full charge, and the ratio of operation to charging improves from 2:1 in Digit 4 to 10:1, meaning it can work for over 20 hours in a 24-hour day; the end-effector is switched to an ISO standard flange, and grippers are replaced according to the process.
There is almost no overlap between these two sets of parameters. The single-arm payload of the G1+ is 3 kg, while Digit 5's is more than seven times that, but Digit 5's release materials do not list the degrees of freedom, nor do they discuss the percentage increase in torque—for a machine that needs to repeatedly move bins on an assembly line, customers care about how many bins it can move per hour, how long it stops midway, and whether it will collide with people.
One detail illustrates this well. Unitree lists the G1+ as having "about 2 hours of battery life," immediately followed by an external power port; Agility lists Digit 5 as having "90 minutes of battery life," immediately followed by a 9-minute fast charge. The former assumes the machine will be plugged in for long periods, while the latter requires the machine to return to its workstation on its own.
03. Laboratories and Assembly Lines Are Two Markets
Typical scenarios for the G1+ include university laboratories, secondary research and development, exhibitions, and demonstrations. Its EDU version offers a choice of multi-brand high-computing-power modules, and the warranty is extended from 8 months for the standard version to 18 months. This configuration is clearly prepared for developers who need to repeatedly debug and tinker for long periods.
The scenarios for Digit 5 are written in its customer list. Digit 4 has already accumulated over 65,000 hours of operation, with customers including GXO, Schaeffler, Amazon, and Toyota's Canadian factories. At GXO's Flowery Branch warehouse in Georgia, Digit 4 does only one thing—completing a cumulative 100,000 bin transports, with an accuracy rate of about 98% in task status. What Digit 5 wants to do is extend from this single step of "moving bins" to both ends: inbound unloading, machine tending, sorting and sequencing, quality inspection, and outbound palletizing, connecting the entire in-plant logistics flow.
Agility disclosed that as of May 2026, multi-year customer orders for Digit 5 have exceeded USD 300 million, with customers shifting from pilots to scaled deployment. These orders come with milestone and specification conditions and are not yet recognized revenue—Agility's net sales in 2025 were approximately USD 1.78 million, with a net loss of USD 138.1 million. The gap between order scale and revenue scale illustrates the most realistic state of the industry right now: demand exists, but the hurdle of mass production has not yet been cleared.
04. One Sells a Platform, the Other Sells Working Hours
The design purposes of the two machines are already very clear.
The G1+ sells a platform. For CNY 95,000, you buy a hardware body, and the rest is left to the buyer. Unitree makes the joints, motors, encoders, and perception modules sufficient and cheap, then opens the interfaces, allowing universities, developers, and integrators to grow applications. How much this machine is worth is not decided by Unitree, but by the ecosystem. The core metrics for this type of business are shipment volume and cost.
Digit 5 sells working hours. It follows multi-year Robot-as-a-Service (RaaS) contracts. Customers do not need to know how many degrees of freedom it has; they only need to calculate: one machine can cover 20 hours a day, equivalent to how many shifts, and how long it takes to pay off. The core metrics for this type of business are availability and mean time between accidents—Agility's Agility Arc platform monitors exactly these two items: uptime and throughput.
The expression of reliability is also separated. The G1+ expresses it through warranty periods: 8 months for the standard version and 18 months for the EDU version. Digit 5 expresses it through operating hours: a record of 65,000 hours of on-site operation, and a record of being "the first to pass an independent on-site safety assessment on a customer's production line."
05. What the Two Mean for the Industry
First, evaluation criteria are shifting. Over the past two years, humanoid robot launch events have competed in backflips, running, and dancing. There is not a single showy move in Digit 5's release materials; it is all about "9-minute charging," "10:1 operation ratio," and "20 hours on duty in 24 hours." This is a reminder for domestic manufacturers: the G1+'s parameter sheet measures the upper limit, while Digit 5's parameter sheet measures the lower limit—how long it can still work under the worst conditions. What truly determines whether it can be commercialized is often the latter.
Second, safety is shifting from an engineering issue to an architectural issue, and the battle for standards has begun. The most worth watching in Digit 5 is not the payload, but that collaborative safety architecture: using multiple sensors plus proprietary algorithms to continuously detect personnel, and upon detection, autonomously avoiding, stopping, or transitioning into a low-center-of-gravity sitting posture; using visual and auditory signals to express motion intentions to people around; plus an independent safety controller dedicated to managing responses when someone enters a dangerous distance. The supporting moves are even more critical—Agility is the first launch partner for NVIDIA's Halos for Robotics platform, with computing power running on IGX Thor; at the same time, it is one of the project leaders for ANSI/A3 TR R15.108 (Technical Report for Dynamically Stable Industrial Mobile Robots in the US and Canada), and is also participating in ISO 25785-1, the first international safety standard for the humanoid robot category. The weight of standards lies in this: whoever writes it into the text first makes their architecture the default option.
Third, the stratification of the two paths in China and the US is solidifying. The US side is spending money on brains and compliance: models, safety architectures, standard seats, and multi-year orders. The Chinese side is pushing costs and supply chains to the extreme: CNY 95,000 for a whole machine, 35 kg, foldable, and available in stock. The two paths do not conflict, but the payback periods are completely different. Digit 5 will not open to early customers until the first half of 2027, with a full market launch scheduled for the end of 2027; the G1+ can be shipped now upon order. In the short term, Chinese machines are deployed faster, and more deployment means more data and faster iteration. In the long term, if the power to define safety standards and workflows falls into the hands of others, no matter how large the shipment volume, it may only play the role of a hardware supplier.
Putting the launches of the two robots together, what we see is not who is ahead and who is behind, but that this industry is growing in two directions simultaneously: on one side, making machines cheaper and easier to obtain, and on the other side, making machines more and more like a piece of production equipment that can be written into a shift schedule.
For humanoid robots to truly enter the workshop, these two paths must eventually connect.
This article is compiled based on public network information, for reference only, and does not constitute investment advice.