¥136,400 (Japan)Kondo's open-price Ver.3.1 kit with Li-Fe battery sells for ¥136,400 including tax at Japanese retailers (about $900), plus shipping and proxy fees when imported; a 22-servo version and a Special Pack cost more

AvailableScriptedJapanese ROBO-ONE classicMade in JapanKit

Weeks+Shipping: Import (1–3 weeks). Sold in Japan; import via Japanese retailers or proxy services.

Kondo (JP) ↗

Overview

The long-running Japanese hobby humanoid kit and a staple of ROBO-ONE fighting and soccer contests, now in Ver.3.1 with updated KRS servos. It is solidly built and easily upgraded to 22 axes, but motion is scripted in a Windows editor. English documentation is thin.

Specifications

Category	Bipeds · Walks, but doesn't really balance
Released	2009
Availability	Available
Programmability	Limited SDK
Best for	Ages 16+ (estimated)
Vision sensors	No vision sensors
Actuators	Smart servos (Dynamixel, Feetech…)
Audio	No audio
Compute type	Arduino / ESP32 / microcontroller
Balance type	Scripted
Height	40 cm (401 mm assembled)
Weight	1.5 kg (Kondo spec, 17-servo kit)
Compute	RCB-4HV controller
Speed	Not published
DOF	17 (expandable to 22+)
Sensors	Optional 2× KRG-5 gyros and RAS-3 accelerometer
Balance	Keyframed motions with optional gyro correction of the gait; gets up after falls using the accelerometer.
SDK	Heart to Heart 4 motion editor (Windows); RCB-4 serial command protocol