RankedBoston Dynamics Spot vs Unitree B2
Key facts
Boston Dynamics Spot (Boston Dynamics; Shipping) and Unitree B2 (Unitree Robotics; Shipping) are both quadruped robot (robot dog)s. Published figures: weight 33.8 kg (75 lb) vs 60 kg (132 lb); speed 1.6 m/s (5.8 km/h · 3.6 mph) vs 6 m/s (21.6 km/h · 13.4 mph); payload 14 kg (31 lb) vs 40 kg (88 lb); runtime 90 min vs 4 h–6 h; degrees of freedom 12 vs 12 (reported). Only Unitree B2 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 B2 #1 of 13 (score 65.3, grade B). Disclosure: Boston Dynamics Spot has 20 sourced values (74% of tracked fields), Unitree B2 has 22 (85%).
Cite: RankedRobot, https://rankedrobot.com/compare/boston-dynamics-spot-vs-unitree-b2/ (checked 2026-09-29) · Every figure below links to its source · Boston Dynamics Spot spec sheet · Unitree B2 spec sheet
| Spec | Boston Dynamics Spot | Unitree B2 |
|---|---|---|
| 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 | #1 of 13 · 65.3 · 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 | 6 m/s (21.6 km/h · 13.4 mph)ManufacturerSource: unitree.com (2026-09-25)Conditions: sustained speed as stated |
| Stairs | Stairs of 20-25cm; obstacle crossing up to 40cm; climb angle >45 degManufacturerSource: unitree.com (2026-09-25) | |
| 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 | Intel Core i5/i7 or NVIDIA Jetson Orin NX (configurable)ManufacturerSource: unitree.com (2026-09-25) | |
| AI performance | ||
| Teleoperation | ||
| Sensors | ||
| Cameras | 360-degree terrain-sensing cameras, 4m sensing rangeManufacturerSource: bostondynamics.com (2026-09-25) | |
| LiDAR | ||
| Power | ||
| Battery | ||
| Runtime | 90 minManufacturerSource: bostondynamics.com (2026-09-25)Conditions: average runtime as stated; standby time 180 min | |
| 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 B2?
Published figures: weight 33.8 kg (75 lb) vs 60 kg (132 lb); speed 1.6 m/s (5.8 km/h · 3.6 mph) vs 6 m/s (21.6 km/h · 13.4 mph); payload 14 kg (31 lb) vs 40 kg (88 lb); runtime 90 min vs 4 h–6 h; degrees of freedom 12 vs 12 (reported). Only Unitree B2 has a public price: US$100,000, Official store (global) (official price).
Which is cheaper, the Boston Dynamics Spot or the Unitree B2?
Only Unitree B2 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 B2?
RankedRobot rank among quadruped robots (robot dogs): Boston Dynamics Spot #6 of 13 (score 53.6, grade A), Unitree B2 #1 of 13 (score 65.3, grade B). Method: https://rankedrobot.com/robot500/#method
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