Next-Gen IRON (XPENG) vs Bolt (MirrorMe)

Compare Next-Gen IRON vs Bolt for humanoid mobility, dexterity, autonomy, and payload capacity in industrial and dynamic use cases.

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Next-Gen IRON vs Bolt at a glance

Bolt is quicker, with a top speed of 10 m/s versus 1.9 m/s for Next-Gen IRON. Next-Gen IRON has more degrees of freedom (82 against 40 for Bolt), which allows finer movement.

Key specifications, Next-Gen IRON compared with Bolt
Key specsNext-Gen IRONBolt
Price—$50,000–$150,000
Height178 cm175 cm
Weight70 kg75 kg
Top speed1.9 m/s10 m/s (stronger)
Runtime4 hours—
Degrees of freedom82 (stronger)40
Payload—20 kg

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Which one fits your use?

Based on the uses each robot is built and marketed for. Open a use to see the specs that matter for it.

Comparing for…Next-Gen IRONBolt
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SuitedNot marketed
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  • Only Next-Gen IRON is marketed for hospitality, retail and public-facing roles.
  • Only Bolt is marketed for hazardous or high-risk work.
  • Both suit research labs and education and training, so compare the specs for that use.

Next-Gen IRON by XPENG positions as a versatile humanoid robot for industrial and service applications, leveraging automotive-derived AI for human-like interaction. Its 178 cm height, 70 kg weight, and advanced specs like 82 degrees of freedom with 22 DoF hands enable precise manipulation and stable bipedal locomotion. Key differentiators include a 4-year battery life from solid-state technology, comprehensive sensor suite with 720-degree vision, and full autonomy powered by 3,000 TOPS Turing AI chips. Compared to Bolt, Next-Gen IRON prioritizes dexterity and environmental adaptability over raw speed.

Bolt by MirrorMe Technology targets dynamic, high-speed humanoid applications in sports, logistics, and unstructured environments. At 175 cm tall and 75 kg, it features over 40 DoF, exceptional 36 km/h speed, and superior payload capacities of 20 kg dynamic and 40 kg static carrying, plus 80 kg deadlift. Differentiators include fully autonomous operation with teleoperation overrides and ROS2-based software supporting Python/C++. In contrast to Next-Gen IRON, Bolt excels in power and speed for physically demanding tasks.

Detailed Analysis

Next-Gen IRON

Next-Gen IRON

Bipedal Mobility & Balance

Next-Gen IRON achieves stable bipedal locomotion at 7 km/h with 82 degrees of freedom, including advanced gait control for human-like balance and dynamic stability in human environments. Bolt reaches 36 km/h (10 m/s), enabling high-speed navigation suited for logistics, though its balance under such velocity in unstructured settings remains unbenchmarked against IRON's catwalk-like grace. Both employ IMU, gyroscope, and force sensors for stability. IRON's solid-state battery supports prolonged mobility, while Bolt's design favors rapid traversal. Overall, Bolt leads in speed, IRON in fluid, safe human-coexistence walking.

Bolt

Bolt

Dexterity & Manipulation (Focus on hands/arms)

Next-Gen IRON's hands offer 22 degrees of freedom each with tactile sensors, enabling fine motor control for tasks like tool handling and object manipulation. Bolt specifies over 40 total DoF but lacks detailed hand metrics, implying standard arm dexterity for 20 kg dynamic carrying. IRON's bionic muscles and 15-22 DoF per hand provide superior precision for delicate operations. Both integrate force and touch sensors. IRON's design outperforms in complex grasping scenarios.

Next-Gen IRON

Next-Gen IRON

AI, Autonomy & Learning Capabilities

Next-Gen IRON delivers full autonomy via three Turing AI chips at 3,000 TOPS, running VLA/VLT models for real-time perception, decision-making, and adaptation without teleoperation. Bolt offers fully autonomous operation with teleoperation overrides, using ROS2 but no specified compute power. IRON's 30 billion parameter models enable continuous learning from vision-language-action integration. Both claim high autonomy levels. IRON's on-board AI gives it an edge in independent task execution.

Bolt

Bolt

Payload & Lifting Capacity

XPENG has not published Next-Gen IRON's payload or lifting capacity. Bolt handles 20 kg dynamic and 40 kg static carrying with 80 kg deadlift, far exceeding IRON for heavy logistics. Capacities reflect design priorities: IRON for precision, Bolt for strength. Both use force-limiting safety. Bolt dominates heavy payload applications.

Next-Gen IRON

Next-Gen IRON

Battery Runtime & Power Efficiency

Next-Gen IRON uses an all-solid-state battery. IRON's technology prioritizes lightweight, safe power for long-duration tasks. Both emphasize endurance. IRON edges in consistent runtime.

Bolt

Bolt

Real-World Use Cases (Industrial vs General Purpose)

Next-Gen IRON suits customer guidance, sales, inspection, research, and healthcare with human-like interaction and precision. Bolt targets sports training, dynamic research, high-speed logistics, and collaboration in unstructured environments. IRON aligns with service-industrial hybrids, Bolt with high-mobility physical tasks. Overlaps exist in research. Use case fit depends on speed vs. dexterity needs.

Next-Gen IRON

Next-Gen IRON

Sensor Suite & Vision Systems

Next-Gen IRON integrates RGB/stereo cameras, LiDAR, ultrasonic, IMU, gyroscope, force/temperature/touch sensors, plus 720-degree vision. Bolt includes similar RGB/stereo cameras, LiDAR, IMU, gyroscope, force, ultrasonic, temperature sensors. IRON adds embedded skin touch sensors and millimeter-wave radar. Both enable robust perception. IRON's suite supports finer environmental awareness.

Bolt

Bolt

Which humanoid robot is better for industrial manufacturing?

Next-Gen IRON excels in precision manipulation with 22 DoF hands and stable 7 km/h mobility for assembly lines, while Bolt's 80 kg deadlift and 36 km/h speed suit heavy, fast-paced logistics over fine tasks. IRON's AI handles adaptive inspection better. Bolt fits dynamic material handling. For most manufacturing, Next-Gen IRON by XPENG is the better choice due to dexterity and safety.

Next-Gen IRON

Next-Gen IRON

Which robot offers better payload for logistics tasks?

Bolt by MirrorMe Technology outperforms with 20 kg dynamic/40 kg static carrying and 80 kg deadlift versus Next-Gen IRON's 10 kg per arm and 20 kg deadlift. Bolt's high speed complements heavy loads in logistics. IRON prioritizes light, precise handling. For payload-intensive logistics, Bolt is recommended.

Capabilities & Operational Tasks

Head-to-head comparison of what Next-Gen IRON and Bolt can do, their applications, and capabilities.

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What Can Next-Gen IRON & Bolt Do?

10

6 tasks listed for both, 2 only for Next-Gen IRON, 2 only for Bolt.

Next-Gen IRON8 supported
Bolt8 supported

Technical Specifications

Next-Gen IRON and Bolt differ on 29 of the 33 specifications listed for both.

Next-Gen IRON
Bolt

Manipulation & Load Capacity

3 Comparative Metrics

Carrying Capacity
Not disclosed
20 kg (Dynamic); 40 kg (Static)
Deadlift Capacity
Not disclosed
80 Kg
Payload Type
Tools, packages, precision instruments, human interaction
Tools, packages, precision instruments, people interaction

Kinematic Architecture & Dexterity

3 Comparative Metrics

Degrees of Freedom
82 DoF (22 per hand)
Over 40 Degrees of Freedom (DOF)
Material
Aluminum alloy, engineering plastics, elastomeric synthetic skin, and composite structures
Aluminum frame, composite, soft skin materials
Mobility Type
Legged (bipedal walking)
Legged (bipedal walking)

Energy & Power Management

7 Comparative Metrics

Runtime
4 hours on full charge
3–5 hours (Varies based on locomotion intensity)
Battery Pack
2.5 kWh solid-state battery
High-density Lithium-polymer (approx. 4 kWh system)
Charging Time
2 hours
2-4 hours
Swappable Battery
No
Yes, hot-swap capable
Energy Consumption
Average 150 W, peak 300 W
800W (Idle) – 2500W (Peak Sprinting)
Power Source
Rechargeable all-solid-state lithium battery (Inferred · High confidence · Based on XPENG’s public reporting)
Rechargeable lithium-ion battery
Battery Type
Solid-state lithium-ion polymer
lithium-ion polymer

Comparison Depth: 13 / 34 Metrics

Frequently Asked Questions

What is the deadlift capacity of Next-Gen IRON by XPENG versus Bolt by MirrorMe Technology?

XPENG has not published Next-Gen IRON's deadlift; Bolt achieves 80 kg. Bolt handles heavier lifts for industrial tasks.

Does Bolt by MirrorMe Technology support teleoperation alongside full autonomy?

Yes, Bolt offers fully autonomous operation with teleoperation overrides. Next-Gen IRON provides full autonomy without mentioned overrides.

How does walking speed compare between Next-Gen IRON and Bolt humanoid robots?

Next-Gen IRON reaches 7 km/h for stable bipedal motion; Bolt achieves 36 km/h, prioritizing high-speed locomotion over deliberate stability.

What are the hand dexterity capabilities of Next-Gen IRON versus Bolt?

Next-Gen IRON features 22 degrees of freedom per hand with tactile sensors; Bolt specifies over 40 total DoF without detailed hand metrics.

Which robot is suitable for healthcare support and customer guidance applications?

Next-Gen IRON by XPENG targets healthcare support and customer guidance with human-like interaction and precise manipulation.

Is Bolt by MirrorMe Technology ready for high-speed logistics deployments?

Yes, Bolt supports high-speed logistics at 36 km/h with 20 kg dynamic carrying in unstructured environments.

Which uses is each robot marketed for, Next-Gen IRON or Bolt?

Only Next-Gen IRON is marketed for hospitality, retail and public-facing roles. Only Bolt is marketed for hazardous or high-risk work. Both suit research labs and education and training, so compare the specs for that use.

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Verdicts reflect our research and opinion. Confirm specifications with the manufacturer before buying.