RankedBoston Dynamics Spot vs Unitree A2
Key facts
Boston Dynamics Spot (Boston Dynamics; Shipping) and Unitree A2 (Unitree Robotics; Shipping) are both quadruped robot (robot dog)s. Published figures: weight 33.8 kg (75 lb) vs 42 kg (93 lb); speed 1.6 m/s (5.8 km/h · 3.6 mph) vs 3.7 m/s (13.3 km/h · 8.3 mph); payload 14 kg (31 lb) vs 25 kg (55 lb); runtime 90 min vs 3 h–5 h; degrees of freedom 12 vs 12. Only Unitree A2 has a public price: US$100,000, Official store (global) (official price). RankedRobot rank among quadruped robots (robot dogs): Boston Dynamics Spot #6 of 13 (score 53.6, grade A), Unitree A2 #4 of 13 (score 59.4, grade B). Disclosure: Boston Dynamics Spot has 20 sourced values (74% of tracked fields), Unitree A2 has 22 (81%).
Cite: RankedRobot, https://rankedrobot.com/compare/boston-dynamics-spot-vs-unitree-a2/ (checked 2026-09-29) · Every figure below links to its source · Boston Dynamics Spot spec sheet · Unitree A2 spec sheet
| Spec | Boston Dynamics Spot | Unitree A2 |
|---|---|---|
| Status | Shipping | Shipping |
| Price | Not published | US$100,000, Official store (global) (official price) source |
| Rank in category | #6 of 13 · 53.6 · grade A | #4 of 13 · 59.4 · grade B |
| Launch | ||
| Announced | ||
| Status | ||
| Units deployed | 1,500ManufacturerSource: bostondynamics.com (2026-09-29)Conditions: robots in customer hands, as of 2026-09-29 page | Not tracked |
| Body | ||
| Dimensions | ||
| Weight | ||
| Form factor | ||
| IP rating | ||
| Mobility | ||
| Max speed | 1.6 m/s (5.8 km/h · 3.6 mph)ManufacturerSource: bostondynamics.com (2026-09-25)Conditions: sustained speed as stated | 3.7 m/s (13.3 km/h · 8.3 mph)ManufacturerSource: unitree.com (2026-09-25)Conditions: sustained speed as stated; page separately lists an up-to ~5 m/s figure |
| Stairs | ||
| Joints & payload | ||
| Degrees of freedom | ||
| Payload | 14 kg (31 lb)ManufacturerSource: bostondynamics.com (2026-09-25)Conditions: mounted payload while walking, as stated | |
| Peak load | Not tracked | |
| Compute & AI | ||
| Processor | ||
| AI performance | ||
| Teleoperation | ||
| Sensors | ||
| Cameras | 360-degree terrain-sensing cameras, 4m sensing rangeManufacturerSource: bostondynamics.com (2026-09-25) | |
| LiDAR | ||
| Microphones | Not tracked | |
| Power | ||
| Battery | ||
| Runtime | 90 minManufacturerSource: bostondynamics.com (2026-09-25)Conditions: average runtime as stated; standby time 180 min | 3 h–5 hManufacturerSource: unitree.com (2026-09-25)Conditions: unloaded continuous walking; loaded (25kg) figure is >3h/~12.5km |
| Charge time | Not tracked | |
| Hot-swappable battery | ||
| Software | ||
| SDK | Unitree SDK2 (unitree_sdk2, C++/Python) with ROS2 support (unitree_ros2)ManufacturerSource: support.unitree.com (2026-09-25) | |
| Safety | ||
| Certifications | 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 · Not disclosed = not published. We never estimate missing figures. Add more robots to this comparison.
Quick answers
What is the difference between the Boston Dynamics Spot and the Unitree A2?
Published figures: weight 33.8 kg (75 lb) vs 42 kg (93 lb); speed 1.6 m/s (5.8 km/h · 3.6 mph) vs 3.7 m/s (13.3 km/h · 8.3 mph); payload 14 kg (31 lb) vs 25 kg (55 lb); runtime 90 min vs 3 h–5 h; degrees of freedom 12 vs 12. Only Unitree A2 has a public price: US$100,000, Official store (global) (official price).
Which is cheaper, the Boston Dynamics Spot or the Unitree A2?
Only Unitree A2 has a public price: US$100,000, Official store (global) (official price). Prices are shown exactly as published, never converted or estimated.
Which ranks higher, the Boston Dynamics Spot or the Unitree A2?
RankedRobot rank among quadruped robots (robot dogs): Boston Dynamics Spot #6 of 13 (score 53.6, grade A), Unitree A2 #4 of 13 (score 59.4, grade B). Method: https://rankedrobot.com/robot500/#method
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