RankedBoston Dynamics Atlas vs UBTECH Walker S2
Key facts
Boston Dynamics Atlas (Boston Dynamics; Pilot) and UBTECH Walker S2 (UBTECH Robotics; Shipping) are both humanoid robots. Published figures: payload 30 kg (66 lb) vs 15 kg (33 lb). Published for only one of them: height (Boston Dynamics Atlas: 1.9 m (6 ft 3 in)); weight (Boston Dynamics Atlas: 90 kg (198 lb)); degrees of freedom (Boston Dynamics Atlas: 56); runtime (Boston Dynamics Atlas: 4 h). Neither maker has published a price. Robot 500: Boston Dynamics Atlas #47 (score 61.6), UBTECH Walker S2 not ranked (fewer than 2 sourced capability figures). Disclosure: Boston Dynamics Atlas has 16 sourced values (57% of tracked fields), UBTECH Walker S2 has 9 (33%).
Cite: RankedRobot, https://rankedrobot.com/compare/boston-dynamics-atlas-vs-ubtech-walker-s2/ (checked 2026-09-26) · Every figure below links to its source · Boston Dynamics Atlas spec sheet · UBTECH Walker S2 spec sheet
| Spec | Boston Dynamics Atlas | UBTECH Walker S2 |
|---|---|---|
| Status | Pilot | Shipping |
| Price | Not published | Not published |
| Robot 500 | #47 · 61.6 | Not ranked |
| Launch | ||
| Announced | ||
| Status | ||
| Units deployed | ||
| Body | ||
| Height | ||
| Weight | ||
| Form factor | ||
| IP rating | ||
| Mobility | ||
| Max walking speed | ||
| Dexterity | ||
| Total degrees of freedom | ||
| DOF per hand | ||
| Payload | ||
| Carry payload | 30 kg (66 lb)ManufacturerSource: bostondynamics.com (2026-09-23)Conditions: sustained (not instant/peak); per definitions.md, maker's "instant" figure recorded separately as peak_lift | 15 kg (33 lb)ManufacturerSource: ubtrobot.com (2026-09-23)Conditions: within a 0-1.8 m vertical workspace, per official product page |
| Per-arm payload | ||
| Peak lift | 50 kg (110 lb)ManufacturerSource: bostondynamics.com (2026-09-23)Conditions: short-duration/instant lift, per manufacturer's product page | Not tracked |
| Compute & AI | ||
| Processor | ||
| AI performance | ||
| Teleoperation | Teleoperation for training data (company statement)ManufacturerSource: bostondynamics.com (2026-09-26) | |
| Sensors | ||
| Cameras | Tactile sensing and 360° camera view (exact camera count not stated)ManufacturerSource: bostondynamics.com (2026-09-23) | Self-developed passive binocular (dual-camera) stereo RGB vision system with deep-learning stereo depth estimationManufacturerSource: ubtrobot.com (2026-09-23) |
| Power | ||
| Battery | ||
| Runtime | ||
| Charge time | ||
| Hot-swappable battery | ||
| Software | ||
| SDK | ||
| Safety | ||
| Certifications | ||
| 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 Atlas and the UBTECH Walker S2?
Published figures: payload 30 kg (66 lb) vs 15 kg (33 lb). Published for only one of them: height (Boston Dynamics Atlas: 1.9 m (6 ft 3 in)); weight (Boston Dynamics Atlas: 90 kg (198 lb)); degrees of freedom (Boston Dynamics Atlas: 56); runtime (Boston Dynamics Atlas: 4 h).
Which is cheaper, the Boston Dynamics Atlas or the UBTECH Walker S2?
Neither maker has published a price. Prices are shown exactly as published, never converted or estimated.
Which ranks higher in the Robot 500, the Boston Dynamics Atlas or the UBTECH Walker S2?
Robot 500: Boston Dynamics Atlas #47 (score 61.6), UBTECH Walker S2 not ranked (fewer than 2 sourced capability figures). Method: https://rankedrobot.com/robot500/#method
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