K3 Bumblebee vs Voxel Series-1
Humanoid robot spec comparison — Kepler Robotics vs Tuesday Labs.
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
Tuesday Labs
Voxel Series-1
51 / 100 Robo2u Score
Home humanoid with two 7-DOF arms and Z-shaped legs, built to find lost items and tidy rooms
| Spec | K3 Bumblebee | Voxel Series-1 |
|---|---|---|
| Released | 2026-07 | 2026-10 |
| Status | Pilot | Pre-order |
| Height | — | — |
| Payload | 30 kg | — |
| Degrees of freedom | — | — |
| Runtime | 480 min | — |
| Top speed | — | — |
| Price | — | — |
| Robo2u Score | 79 | 51 |
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.
