Phoenix vs Forerunner K2: Specs, Price & ROS Support Compared (2025)
Sanctuary AI vs Kepler Robotics — independent, side-by-side analysis.
Quick Verdict
Phoenix leads in higher payload, while Forerunner K2 leads in more DOF. The two robots are evenly matched, each excelling in different areas.
Phoenix
Sanctuary AI
Forerunner K2
Kepler Robotics
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Phoenix Forerunner K2
Specifications
Contact (enterprise)Price$34,800
170 cmHeight178 cm
70 kgWeight85 kg
41DOF52
25 kgPayload15 kg
—Runtime8h
0.83 m/sSpeed—
YesStairsYes
NoLiDARNo
Carbon AI system (Microsoft Azure)Compute100 TOPS
Ecosystem Openness
8
Phoenix
/100
—
Forerunner K2
Carbon AI fully proprietary. Microsoft Azure backend.
Pros and cons at a glance
Phoenix
Pros
- High rated payload (25 kg) for industrial pick-and-place
- 41 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
Forerunner K2
Pros
- Shipping to customers (verified commercial availability)
- Long runtime (8h per charge) for full-shift operation
- 52 degrees of freedom — full-body articulation
Cons
- Closed software stack — no public SDK or ROS support
Frequently asked questions
How do Phoenix and Forerunner K2 compare on price?
Phoenix: Contact (enterprise). Forerunner K2: $34,800. Only one of the two has a public unit price; the other publishes a range or enterprise-only terms.
Which has higher payload: Phoenix or Forerunner K2?
Phoenix rates a higher payload at 25 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 Phoenix or Forerunner K2 actually available to buy?
Phoenix is in active development without commercial availability. Forerunner K2 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: 2025