RankedUBTECH Walker S2 vs Unitree G1
Key facts
UBTECH Walker S2 (UBTECH Robotics; Shipping) and Unitree G1 (Unitree Robotics; status not disclosed) are both humanoid robots. Published figures: height 1.76 m (5 ft 9 in) (reported) vs 1.32 m (4 ft 4 in); weight 70 kg (154 lb) (reported) vs 35 kg (77 lb); degrees of freedom 52 (reported) vs 23; hand DOF 11 (reported) vs 7; walking speed 2 m/s (7.2 km/h · 4.5 mph) (reported) vs 2 m/s (7.2 km/h · 4.5 mph). Published for only one of them: payload (UBTECH Walker S2: 15 kg (33 lb)); runtime (Unitree G1: 2 h). Price: UBTECH Walker S2 €242,000, EU (RobotShop, retailer) (reported price); Unitree G1 US$13,500 (G1), US/global store (official price). RankedRobot rank among humanoid robots: UBTECH Walker S2 =11 of 29 humanoid robots (tied) (score 49.4, grade C), Unitree G1 =3 of 29 humanoid robots (tied) (score 54.2, grade B). Disclosure: UBTECH Walker S2 has 17 sourced values (59% of tracked fields), Unitree G1 has 27 (63%).
Cite: RankedRobot, https://rankedrobot.com/compare/ubtech-walker-s2-vs-unitree-g1/ (checked 2026-10-20) · Every figure below links to its source · UBTECH Walker S2 spec sheet · Unitree G1 spec sheet
| Spec | UBTECH Walker S2 | Unitree G1 |
|---|---|---|
| Status | Shipping | Not disclosed |
| Price | €242,000, EU (RobotShop, retailer) (reported price) source | US$13,500 (G1), US/global store (official price) source |
| Rank in category | =11 of 29 humanoid robots (tied) · 49.4 · grade C | =3 of 29 humanoid robots (tied) · 54.2 · grade B |
| Launch | ||
| Announced | ||
| Status | ||
| Units deployed | 410ReportedSource: eeo.com.cn (2026-09-29)Conditions: G1 units sold in calendar 2024 (not cumulative) | |
| Body | ||
| Height | ||
| Dimensions | Not tracked | |
| Weight | ||
| Form factor | ||
| IP rating | ||
| Mobility | ||
| Max walking speed | 2 m/s (7.2 km/h · 4.5 mph)ReportedSource: 21jingji.com (2026-10-01)Conditions: walking; sustained vs peak not stated | 2 m/s (7.2 km/h · 4.5 mph)ManufacturerSource: cistemlabs.ai (2026-10-03)Conditions: flat terrain, stable controlMaker's figure is an "up to" value. |
| Dexterity | ||
| Total degrees of freedom | ||
| DOF per hand | ||
| Payload | ||
| Carry payload | 15 kg (33 lb)ManufacturerSource: ubtrobot.com (2026-10-12)Conditions: within a 0-1.8 m vertical workspace, per official product page | |
| Per-arm payload | 7.5 kg (17 lb)ReportedSource: funduinoshop.com (2026-10-09)Conditions: single-hand grasp; pose not stated | |
| Compute & AI | ||
| Processor | 8-core high-performance CPU; optional NVIDIA Jetson Orin moduleManufacturerSource: cistemlabs.ai (2026-10-03) | |
| AI performance | ||
| AI stack | Not tracked | |
| Teleoperation | ||
| Sensors | ||
| Cameras | Self-developed passive binocular (dual-camera) stereo RGB vision system with deep-learning stereo depth estimationManufacturerSource: ubtrobot.com (2026-09-23) | |
| Depth sensing | Not tracked | |
| LiDAR | Not tracked | |
| IMU | Not tracked | |
| Microphones | ||
| Force/torque | Not tracked | |
| Power | ||
| Battery | ||
| Runtime | ||
| Charge time | ||
| Hot-swappable battery | ||
| Software | ||
| SDK | Secondary development available on G1 EDU only (Unitree SDK2, C++, BSD-3-Clause)ManufacturerSource: unitree.com (2026-10-03) | |
| ROS support | Not tracked | ROS 2 (Foxy on Ubuntu 20.04; Humble on 22.04 recommended) via unitree_ros2; G1 appears in the repo examplesManufacturerSource: github.com (2026-10-03) |
| Open source | Not tracked | unitree_sdk2 and unitree_ros2 interface libraries are public under BSD-3-ClauseManufacturerSource: github.com (2026-10-03) |
| App ecosystem | Not tracked | |
| Safety | ||
| Certifications | ||
| Collaborative operation | Not tracked | |
| Commercial | ||
| Regions sold | ||
Confidence labels: Manufacturer = stated by the maker · Verified = independently confirmed · Reported = credible media or retailer, not confirmed by the maker · ⚠ Unconfirmed = leak or single source · Estimate = our calculation from official figures, method shown · Not disclosed = not published. We never guess missing figures. Add more robots to this comparison.
Quick answers
What is the difference between the UBTECH Walker S2 and the Unitree G1?
Published figures: height 1.76 m (5 ft 9 in) (reported) vs 1.32 m (4 ft 4 in); weight 70 kg (154 lb) (reported) vs 35 kg (77 lb); degrees of freedom 52 (reported) vs 23; hand DOF 11 (reported) vs 7; walking speed 2 m/s (7.2 km/h · 4.5 mph) (reported) vs 2 m/s (7.2 km/h · 4.5 mph). Published for only one of them: payload (UBTECH Walker S2: 15 kg (33 lb)); runtime (Unitree G1: 2 h).
Which is cheaper, the UBTECH Walker S2 or the Unitree G1?
Price: UBTECH Walker S2 €242,000, EU (RobotShop, retailer) (reported price); Unitree G1 US$13,500 (G1), US/global store (official price). Prices are shown exactly as published, never converted or estimated.
Which ranks higher, the UBTECH Walker S2 or the Unitree G1?
RankedRobot rank among humanoid robots: UBTECH Walker S2 =11 of 29 humanoid robots (tied) (score 49.4, grade C), Unitree G1 =3 of 29 humanoid robots (tied) (score 54.2, grade B). Method: https://robot500.com/methodology/
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