





$500pre-order, $25 reservation. SLS pre-assembled or DIY-print kit
Announced onlyRL walkingLegs-onlyIsaac LabPre-orderStartup
Not releasedShipping: Q4 2026 (pre-order). $25 reservation now. Mekion expects to ship in early Q4 2026 to the US and EU once FCC/CE certification clears. Mekion ↗
Overview
A minimal legs-plus-head biped and a clean RL testbed. The 20 Hz loop and 8 DOF make it less dynamic than the ducks, and training is Isaac Lab, so a MuJoCo port is a DIY job. It's an early pre-order from a small startup, so treat the dates as tentative.
Specifications
| Category | Bipeds · Open-source RL bipeds |
|---|---|
| Released | 2025 |
| Availability | Announced only |
| Programmability | Open source (hardware + software) |
| Best for | Ages 14+ (estimated) |
| Vision sensors | Camera |
| Actuators | Smart servos (Dynamixel, Feetech…) |
| Audio | No audio |
| Compute type | Arduino / ESP32 / microcontroller, Laptop / PC as the brain |
| Balance type | RL walking |
| Height | 45.6 cm |
| Weight | 1.6 kg (SLS version) |
| Compute | Custom RP2040 board, policy runs off-board (PC/SBC) or on the RP2040 |
| Speed | Not published (~0.2 m/s est.) |
| DOF | 8 Feetech STS3215 (4 per leg) |
| Sensors | BNO08x IMU, 2× 180° cameras, 4× ToF |
| Balance | RL walking policy trained in Isaac Lab (~5 min runs), 20 Hz control loop. Push recovery not stated. |
| SDK | Python API, ROS 2, Isaac Lab env, walk and sit/stand models included (Apache-2.0) |
Ratings & reviews
Ratings and reviews load on the live site.
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