K3 Bumblebee vs T800
Humanoid robot spec comparison — Kepler Robotics vs EngineAI Robotics.
Kepler Robotics
K3 Bumblebee
79 / 100 Robo2u Score
Successor to the Forerunner K2 with an added waist joint, 30 kg dual-arm lifting and eight-hour shifts
EngineAI Robotics
T800
67 / 100 Robo2u Score
Full-size combat-capable humanoid with 450 N·m joints and a modular solid-state battery, launched at CES 2026
| Spec | K3 Bumblebee | T800 |
|---|---|---|
| Released | 2026-07 | 2026-01 |
| Status | Pilot | Production |
| Height | — | 173 cm |
| Payload | 30 kg | 5 kg |
| Degrees of freedom | — | 29 |
| Runtime | 480 min | 180 min |
| Top speed | — | 2 m/s |
| Price | — | $25k |
| Robo2u Score | 79 | 67 |
Highlighted = better on that spec (lower is better for price and weight; newer for release). The Robo2u Score is a transparent composite — see the Humanoid Showdown for the full field.
