K3 Bumblebee vs Phantom
Kepler Robotics vs Foundation Robotics — specs, price, and data-backed comparison.
QUICK TAKE
- Phantom offers the higher payload (40 kg vs 30 kg).
- Phantom offers the faster top speed (6.12 km/h vs 3.49 km/h).
- K3 Bumblebee offers the more degrees of freedom (53 vs 29).
- Phantom offers the lighter build (80 kg vs 83 kg).
SPECIFICATIONS COMPARED
| K3 Bumblebee | Phantom | |
|---|---|---|
| Company | Kepler Robotics | Foundation Robotics |
| Category | Humanoid | Humanoid |
| Price: | Not announced | Not announced |
| Weight | 83 kg | 80 kg |
| Payload | 30 kg | 40 kg |
| Degrees of Freedom | 53 | 29 |
| Speed | 3.49 km/h | 6.12 km/h |
| Battery Life | 480 min | — |
| Software / AI | Nebula Embodied Intelligence Open Operating System; Kepler-OmniVTLA dataset ecosystem | — |
FREQUENTLY ASKED QUESTIONS
What is the difference between the K3 Bumblebee and the Phantom?
K3 Bumblebee is made by Kepler Robotics, while Phantom is made by Foundation Robotics. Both are humanoids, so the differences come down to price and specifications.
Which has the higher payload, the K3 Bumblebee or the Phantom?
The Phantom has the higher payload at 40 kg, compared to 30 kg for the K3 Bumblebee.
Which is faster, the K3 Bumblebee or the Phantom?
The Phantom has the higher top speed at 6.12 km/h, compared to 3.49 km/h for the K3 Bumblebee.


