Sanctuary AI Phoenix vs UBTech Robotics Walker S2

Dataset date: 2026-09-20

175 cmhuman
payload 20.5 kg (claimed)
ClaimedC170 cm1Sanctuary AI Phoenix
payload 15 kg (claimed)
ClaimedC176 cm3UBTech Robotics Walker S2

Height to scale. Width is schematic, derived from weight; not a measured body width.

Sanctuary AI PhoenixSanctuary AI Phoenix: announced 2023-05-16, no dated delivery evidence
UBTech Robotics Walker S2UBTech Robotics Walker S2: announced 2025-07-23, no dated delivery evidence

open outline: claimed → demonstrated · hatched: demonstrated · filled dot: first delivery recorded

Evidence sheet

PropertySanctuary AI PhoenixUBTech Robotics Walker S2Difference
Height (cm)ClaimedC170 cm1ClaimedC176 cm3+6 cm
Weight (kg)ClaimedC57.9 kg1sources disagreeno sourced value
Degrees of freedomClaimedC201ClaimedC523+32 DoF
Walking speed (km/h)ClaimedC4.8 km/h1no sourced valueno sourced value
Payload (kg)ClaimedC20.5 kg1ClaimedC15 kg2-5.5 kg
Battery runtime (min)no sourced valuesources disagreeno sourced value
Handsno sourced valueno sourced value—
Latest priceno sourced valueno sourced value—
Announced2023-05-1612025-07-233+26 mo
First customer deliveryno sourced valueno sourced valueno sourced value
Delivery statusdemonstratedclaimed—

Notes

  1. 55 lbs (20.5 kg) (accessed 2026-09-20) — source
  2. pitch 125° angle and handle 15kg payload within 0-1.8 meters workspace (accessed 2026-09-20) — source
  3. stands at an impressive height of 1.76 meters (accessed 2026-09-20) — source

Cite this comparison: https://humanoidrecord.com/compare/sanctuary-ai-phoenix-vs-ubtech-walker-s2/ (accessed 2026-09-20)

Correct this comparison or email corrections@humanoidrecord.com.