Zerith Z1
humanoid

Zerith Z1 — Specs, Price & Where to Buy (2026)

Zerith Z1 is a compact humanoid robot under development by Zerith Robotics, built on a 145 cm frame with 34 DOF and priced at $120,000. It delivers 2-hour runtime, 4 km/h walking speed, and 8 kg arm payload. Positioned as a research workhorse, the Z1 targets industrial automation, logistics, and service applications. Availability is not yet commercial; units remain in development as of 2026.

💰Price
$120,000
📅First Built
2025
🌍Origin
CN
📏Height
145 cm
⚖️Weight
33 kg
🦾Degrees of freedom
34
🏃Max speed
4 km/h
📦Payload
8 kg
🔋Battery
2 hours
🛒Availability
Not available

What is the Zerith Z1?

The Zerith Z1 is an entry-level humanoid robot designed for research and early industrial deployment. Manufactured by Zerith Robotics in China, the Z1 stands 145 cm tall and weighs 33 kg, featuring 34 degrees of freedom for whole-body motion. Equipped with an industrial-grade onboard compute and RGB-D perception suite including LiDAR, it runs for 2 hours on a charge and reaches walking speeds up to 4 km/h. The 8 kg payload capacity enables manipulation tasks in manufacturing inspection, light logistics, and service roles. Z1’s compact frame and ROS-compatible architecture make it an accessible testbed for humanoid robotics research.

Specifications

Here are the full technical specifications.

SpecValue
Height145 cm
Weight33 kg
Degrees of freedom34
Battery life2 hours
Max speed4 km/h
Payload8 kg
Price (new)$120,000
Price (used range)N/A (no used market yet)

Price & Value

New MSRP: $120,000

Used range: N/A (no used market yet)

At $120,000, the Z1 sits in the mid-range for humanoid research platforms—more accessible than full-scale industrial humanoids like UBTECH’s Walker S, but pricier than bare-bones bipedal kits. For labs needing a self-contained ROS-ready system with 34 DOF and integrated perception, the Z1 offers solid value. As a pre-commercial device, pricing is direct from Zerith; no depreciation data exists yet, but used units may not appear until 2027 or later, potentially trading at 30–40% below MSRP. Buyers should budget for potential software license fees and ongoing maintenance, as Zerith’s support infrastructure is still maturing.

Who Is It For?

Best for: - University robotics labs requiring a pre-built 34-DOF humanoid for locomotion and manipulation research - Industrial automation integrators exploring bipedal inspection tasks in structured environments

Not for: - Heavy payload tasks (limited to 8 kg arm payload) - Outdoor or harsh environments (IP20–IP54 rated, not rugged)

Alternatives & Comparison

While several humanoid robots target the $80k–$150k research bracket, the Zerith Z1 differentiates with its compact 145 cm frame and 34 DOF at a competitive price.

ModelPriceAvailableKey Difference
Unitree H1~$90,000 (est.)yesFaster bipedal locomotion (15 km/h) with lower dexterity (19 DOF)
Fourier GR-2~$85,000 (est.)preorderLarger platform with 50+ DOF and higher payload, but heavier and less compact
UBTECH Walker S~$150,000 (est.)yesProven service humanoid with full enterprise support, double the price

Verdict: For researchers prioritizing a compact, 34-DOF platform at $120k, the Z1 hits a sweet spot. The Unitree H1 is a better choice if speed matters more than manipulation dexterity, while the Fourier GR-2 offers a more advanced motion system for a similar price—but may be harder to acquire. The UBTECH Walker S is overkill unless you need a polished out-of-the-box service robot. We recommend the Z1 for labs starting out in whole-body control and light manipulation.

Use Cases & Capabilities

Manufacturing Inspection

Z1 walks along assembly lines, capturing RGB-D and LiDAR data for defect detection. Its 34 DOF allow it to duck under conveyors or peer into tight spaces. The 2-hour runtime supports regular rounds on a single shift, but hot-swappable batteries are not confirmed. The integrated compute runs vision inspection models locally, reducing latency to under 100 ms. With ROS compatibility, it integrates into existing factory MES systems. However, the IP20–IP54 rating limits use to clean, indoor settings.

Logistics and Material Handling

Equipped with five-fingered hands and 8 kg payload, Z1 can pick and place small parts in warehouses or fulfillment centers. It navigates at 4 km/h using onboard LiDAR and SLAM, avoiding obstacles autonomously. The compact 145 cm frame allows operation under low ceilings and in narrow aisles. Current battery endurance (2 hours) suits short bursts of order picking, but multiple charge cycles per shift would be needed for continuous operation.

Academic Research

Z1 provides a complete humanoid platform for locomotion, grasping, and HRI studies. Its 8 kg payload and dexterous five-fingered hands enable manipulation experiments. The Linux/ROS stack allows students to implement custom controllers, while onboard IMU and LiDAR feed SLAM and navigation projects. At 145 cm, it is smaller than many full-size humanoids, making it manageable for lab environments with limited space.

Service Robotics

Z1’s humanoid form and 34 DOF enable natural interactions in hospitality or concierge scenarios. It can carry trays up to 8 kg and navigate at 4 km/h through indoor spaces. Onboard microphones and speakers (not detailed) may support voice interaction. However, paint finish and anthropomorphic design are still basic; custom integration may be needed for customer-facing deployment.

History & Background

Zerith Robotics unveiled the Z1 in 2024 as its first commercial humanoid product, following internal development that began in 2023. The company, headquartered in China, focuses on general-purpose bipeds for industrial and service sectors. The Z1 was built on a compact 145 cm frame, emphasizing accessibility for research labs. In 2024, Zerith showcased the robot at trade fairs with a $120,000 price tag and 34 degrees of freedom. Early 2025 saw limited pilot deployments in manufacturing inspection and logistics, though full commercial rollout is still pending as of 2026. Current firmware updates have improved stamina and walking stability. No generational variants have been announced, and the platform remains the sole entry in Zerith’s portfolio.

Buying Used — What to Check

Verify battery health Battery capacity degrades over time; a 2-hour runtime may drop significantly on older cells.

Inspect joint actuators 34 high-precision gear reductions are wear items; check for backlash or calibration drift.

Confirm ROS compatibility version Software stack may be locked to a specific ROS distro; verify updates are available for your development environment.

Frequently Asked Questions

The Zerith Z1 is priced at $120,000 when purchased directly from Zerith Robotics. This price applies to pre-commercial units; shipping and any software license fees are typically additional.
The Z1 performs bipedal locomotion up to 4 km/h, manipulates objects up to 8 kg with its five-fingered hands, and runs inspection routines using onboard RGB-D cameras and LiDAR. It is designed as a research workhorse for whole-body control, SLAM, and manipulation experiments. Industrial tasks like assembly-line defect detection and light logistics are within its capability.
The Z1 is still in development as of 2026. Commercial shipments have not yet begun. Interested labs and enterprises can contact Zerith Robotics to discuss pre-orders or pilot program participation; lead times are estimated at 6–12 months but have not been publicly confirmed.
The Unitree H1 is larger (180 cm) and much faster (up to 15 km/h) but has only 19 degrees of freedom, making it better suited for locomotion research than dexterous manipulation. The Z1’s 34 DOF and compact 145 cm frame give it an advantage in fine manipulation and tight spaces. The H1 costs around $90,000, about $30,000 less than the Z1.
Key specifications: height 145 cm, weight 33 kg, 34 degrees of freedom, 2-hour battery life, maximum walking speed 4 km/h, payload capacity 8 kg (arm manipulation). It features RGB-D sensors, LiDAR, IMU, and an industrial-grade onboard compute running Linux/ROS.
Zerith Robotics, a Chinese startup founded in the early 2020s, manufactures the Z1. The company is headquartered in China and focuses on general-purpose humanoid robots for industrial and service applications. Their website is casbot.tech.
The Z1 provides 2 hours of continuous operation on a full charge. Charging time and whether batteries are hot-swappable have not been disclosed by the manufacturer.
Target industries include manufacturing inspection, logistics, academic research, and service sectors. As of 2026, limited pilot deployments have been reported in structured manufacturing and warehouse environments.
The robot is rated IP20–IP54, which assumes indoor industrial use. Outdoor deployment is not recommended due to moisture, dust, and uneven terrain. Stairs and very rough ground are not supported.
The Z1 likely runs a Linux-based operating system with ROS (Robot Operating System) compatibility, enabling integration with standard research tools. Zerith has not published detailed software documentation, but the onboard compute supports Ethernet, Wi-Fi, and ROS network interfaces.

Photos6

Zerith Z1 photo 1
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