Quadruped · 2023
Unitree Go2
The consumer quadruped that made legged robots normal. Its real achievement is the price: twelve QDD joint motors, a LiDAR, and a full locomotion controller for less than a used car.
$1.6k
Unitree
12 (3 per leg) DOF
Closed source
Why it matters
The cheapest way to actually own a legged platform and stop guessing what walking feels like. Good enough SDK to do real work on.
Where it falls short
Closed locomotion controller — you ride the gait, you do not write it. The Edu model is required for Jetson access.
Read this if you plan to copy itThe parts below are the same classes of component at this platform scale — they are not the exact vendor parts. Use them to understand the architecture and to price a home-built equivalent.
What it is made of
| Subsystem | Comparable part | Price | Primary spec |
|---|---|---|---|
| Actuators | Robstride 01 | $130 | 14 N·m |
| Sensors | BNO085 9-DOF IMU | $25 | 3-axis accel + gyro + magnetometer |
| Sensors | Livox Mid-360 | $700 | 40 m @ 10% reflectivity |
| Power | Molicel P42A (21700) | $8 | 4200 mAh |
Software you would touch
Unitree SDK2 · ROS 2 · DDS