HumanoidRoster
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UBTECH
Walker S2
Limited release56Reality
Kepler Robotics
Kepler Forerunner K2
Demo46Reality
Quick read

Walker S2 leads on more comparable public fields than Kepler Forerunner K2. This is not a blanket verdict: missing values are treated as not sourceable, and Reality Score/lifecycle should be read alongside the spec rows.

Walker S2 leads on
  • Lifecycle
  • Reality Score
  • Weight
Kepler Forerunner K2

No automatic spec wins from sourceable comparable values.

Specs
Spec
Walker S2
Kepler Forerunner K2
Lifecycle
Limited release
Demo
Reality Score
56 / 100
46 / 100
Height
176 cm
175 cm
Weight
70 kg
75 kg
Payload
No sourceable public value for one side.
15 kg
No sourceable public value
Runtime
No sourceable public value for one side.
No sourceable public value
8h
Top speed
No sourceable public value for one side.
2 m/s
No sourceable public value
DoF (total)
52
52
DoF (per hand)
11
11
Actuator
Electric
Electric
Teleop
No sourceable public value for one side.
No sourceable public value
Hybrid
Evidence
Evidence
Walker S2
Kepler Forerunner K2
Public specs
Yes
Yes
Named customer
No
No
Independent verification
No
No
Teleop disclosure
No
Yes
Last reviewed
2026-07-20
2026-05-19
Source confidence
Source list published
Source list published