Echo Full Body vs K3 Bumblebee
Humanoid robot spec comparison — Realbotix vs Kepler Robotics.
Realbotix
Echo Full Body
68 / 100 Robo2u Score
Full-size lifelike companion humanoid with silicone skin and upper-body motion, in 72 in female and 77 in male versions
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
| Spec | Echo Full Body | K3 Bumblebee |
|---|---|---|
| Released | 2026-10 | 2026-07 |
| Status | Pre-order | Pilot |
| Height | 183 cm | — |
| Payload | — | 30 kg |
| Degrees of freedom | 39 | — |
| Runtime | — | 480 min |
| Top speed | — | — |
| Price | $60.0k | — |
| Robo2u Score | 68 | 79 |
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.
