Optimus Gen 2 vs Walker S: Specs, Price & ROS Support Compared (2023)
Tesla vs UBTECH Robotics — independent, side-by-side analysis.
Quick Verdict
Optimus Gen 2 leads in higher payload, faster speed, while Walker S leads in more DOF. Overall, Optimus Gen 2 has an edge in 2 out of 3 compared categories.
Optimus Gen 2
Tesla
Walker S
UBTECH Robotics
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Optimus Gen 2 Walker S
Specifications
$20,000–$30,000 target at scale; not for sale, no MSRP, no external SDK (Aug 2026)PriceContact
168 cmHeight170 cm
57 kgWeight48 kg
28DOF41
20 kgPayload15 kg
8hRuntime—
2.2 m/sSpeed1.5 m/s
YesStairsYes
NoLiDARNo
Tesla FSD custom SoCComputeN/A
Task Capabilities
✓Pick up a box from shelf?
◔Open a door handle?
◔Pour liquid into cup?
◔Use a power tool?
✕Type on keyboard?
✓Climb stairs with load?
◔Walk on uneven terrain?
✕Run (>3 m/s)?
◔Crouch under obstacle?
◔Navigate in crowd?
✓Recognize & locate objects?
◔Respond to voice commands?
✓Detect humans nearby?
✓Work 8-hour shift?
✕Hot-swap battery?
◔Operate 24/7 (with charging)?
✕Work in rain (IP65+)?
?Work below 0°C?
?Work in dusty environment?
◔Work safely alongside humans?
Ecosystem Openness
5
Optimus Gen 2
/100
—
Walker S
Fully proprietary. No public SDK/API. Closed ecosystem.
Pros and cons at a glance
Optimus Gen 2
Pros
- Long runtime (8h per charge) for full-shift operation
- 28 degrees of freedom — full-body articulation
Cons
- Still in development, no commercial availability
- Unit price not publicly disclosed (quote-on-request or enterprise-only)
- Closed software stack — no public SDK or ROS support
Walker S
Pros
- Shipping to customers (verified commercial availability)
- 41 degrees of freedom — full-body articulation
Cons
- Unit price not publicly disclosed (quote-on-request or enterprise-only)
- Closed software stack — no public SDK or ROS support
Frequently asked questions
How do Optimus Gen 2 and Walker S compare on price?
Optimus Gen 2: $20,000–$30,000 target at scale; not for sale, no MSRP, no external SDK (Aug 2026). Walker S: Contact.
Which has higher payload: Optimus Gen 2 or Walker S?
Optimus Gen 2 rates a higher payload at 20 kg vs 15 kg. Payload ratings are vendor claims and do not always include a duty cycle — peak vs sustained payload can differ significantly.
Is Optimus Gen 2 or Walker S actually available to buy?
Optimus Gen 2 is in active development without commercial availability. Walker S is shipping to customers. Status reflects the vendor's published commercial position as of the last review and can change between announcement and actual delivery.
Last updated: 2023
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