The L7 by Robot Era is a full-size humanoid robot from a Beijing-based spinoff of Tsinghua University, positioned for industrial automation, research, and agile tasks. It stands out with a maximum running speed of 14.4 km/h, 55 degrees of freedom including 12-DOF hands, and capabilities like jumping, dancing, and precise assembly such as screw-driving. Priced at USD 120,000 for base configurations, it targets enterprise partners with its ERA-42 AI computer and multi-sensor fusion for 360° perception.
Next-Gen IRON by XPENG is a humanoid robot estimated at $150,000-$250,000, aimed at customer service, industrial inspection, healthcare, and research applications. It differentiates through embedded touch sensors in its skin, a broad sensor suite including force and temperature sensors, and support for collaborative modes. With dimensions of 178 x 50 x 40 cm and a focus on learned behaviors via ROS2-based software, it emphasizes safe interaction in human environments.
Detailed Analysis

Design & Build Quality
L7 measures 171 x 50 x 40 cm, weighs 65 kg, and uses aerospace-grade aluminum alloy with carbon fiber composites for a lightweight yet durable frame supporting 55 DoF and 400 Nm torque joints. Next-Gen IRON is taller at 178 x 50 x 40 cm and heavier at 70 kg, featuring skin-embedded touch sensors for enhanced interaction feedback. L7's quasi-direct drive system reduces power loss and improves force accuracy, while Next-Gen IRON prioritizes collaborative design.

Mobility & Navigation
L7 achieves a maximum running speed of 14.4 km/h (4 m/s) with dynamic capabilities like 360° spins and balance recovery, using multi-sensor fusion, 3D LiDAR, stereo vision, and SLAM. Next-Gen IRON reaches 6 km/h (1.67 m/s) walking speed, relying on visual SLAM, LiDAR mapping, and indoor SLAM for navigation. L7 excels in high-speed agile movement, while Next-Gen IRON focuses on stable indoor traversal.

Sensors & Perception
L7 includes panoramic binocular RGB-D cameras with 360° FOV, 3D LiDAR, 6-axis IMU, microphone array, and speakers for voice interaction. Next-Gen IRON has RGB cameras, stereo cameras, LiDAR, ultrasonic, IMU, gyroscope, force, temperature, and skin touch sensors. Both employ multi-sensor approaches, but L7 emphasizes panoramic vision and Next-Gen IRON adds tactile and environmental sensing.

AI Capabilities
L7 runs custom AI software on the ERA-42 onboard embodied AI computer, supporting full-body control, autonomous operation, teleoperation, and APIs likely with ROS integration. Next-Gen IRON uses a proprietary OS based on ROS2 with Python and C++ APIs for autonomous control, teleoperation, and learned behaviors. L7 integrates vision-language-action models, while Next-Gen IRON leverages ROS2 for programming flexibility.

Battery & Power Efficiency
L7 offers a typical lithium-ion battery lifespan of 3-5 years, with runtime per charge not specified but supporting high-speed operations. Next-Gen IRON provides a 4-year battery lifespan. Both indicate long-term power solutions suitable for sustained use, with overlapping durability.

Use-Case Suitability
L7 targets industrial assembly like screw-driving and sorting, logistics goods-to-person, pharmaceutical handling, and embodied AI research. Next-Gen IRON suits customer guidance, sales assistance, industrial inspection, research, and healthcare support. L7 leans toward high-dexterity factory tasks, while Next-Gen IRON extends to service and collaborative environments.

Software Ecosystem
L7 employs custom AI software with ERA-42, likely Linux-based OS and ROS integration, plus APIs for programming, app control, and teleoperation. Next-Gen IRON runs proprietary ROS2-based OS supporting Python and C++ APIs for autonomous and learned behaviors. Both enable developer access, with ROS2 providing standardized tools for Next-Gen IRON.

Pricing & Value
L7 is priced at USD 120,000 for base research and enterprise configurations. Next-Gen IRON ranges from $150,000 to $250,000 estimated. L7 offers a lower entry point for industrial-focused deployments.

Safety Features
L7 includes emergency stop, obstacle avoidance via real-time sensing, and torque-limited joints. Next-Gen IRON features force limiting, collision detection, emergency stop, and collaborative mode. Both prioritize human-safe operation through sensing and control limits.
Analysis Score Summary
Total Score
12
L7
VS
Based on Detailed Analysis
Total Score
6
Next‑Gen IRON
📊 Win: 2 points | Trade-off: 1 point each
Scores are summed across every insight: a clear winner earns 2 points, while balanced trade-offs give each robot 1 point. The total reflects how often each robot outperforms the other (or shares the spotlight) throughout the detailed analysis sections.
Specifications Comparison
| Specification | L7 | Next‑Gen IRON |
|---|---|---|
| Carrying Capacity | 10 kg per arm | 5 kg per arm (Estimated) |
| Deadlift Capacity | 20 kg | 15 kg maximum (Estimated) |
| Degrees of Freedom | 55 DoF | - |
| Autonomy Level | Semi-autonomous (Full autonomy for learned logistics/industrial tasks) | Full autonomous |
| Price | USD 120,000 USD (Base configuration for research and enterprise partners) | $150,000 - $250,000 USD (Estimated) |
| Weight | 65 kg | 70 kg |
| Max Speed | 14.4 km/h (4 m/s) Maximum running Speed | 6 km/h (1.67 m/s) max walking speed |
| Runtime | 6 hours | 6 hours on full charge (Estimated) |
| Battery Pack | 60 V 15 Ah (approx. 900 Wh) | 2.5 kWh solid-state battery |
| Dimensions | 171 x 50 x 40 (cm) | 178 x 50 x 40 cm |
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Disclaimer
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