Quadrupeds
Mini Pupper 2
intermediate · $604 to $800
Palm-sized 12-servo robot dog on a Raspberry Pi CM4 and ROS 2, for learning gaits, SLAM and vision.
Petoi Bittle X
beginner · $319 to $469
Small spring-legged robot dog on an ESP32 board with voice commands, coded in blocks, C++ or Python.
SpotMicro (SpotMicroAI)
intermediate · $300 to $500
Fully 3D printed hobby robot dog with twelve hobby servos, a Pi or Jetson brain, and a large community of remixes.
Stanford Pupper (v1, servo version)
intermediate · $750 to $1,150
Twelve-servo Raspberry Pi robot dog from Stanford's student club, built from carbon fiber plates and printed hips, driven by a PS4 controller.