KHR-3HV vs KXR-L2
Kondo Kagaku KHR-3HV, Kondo Kagaku KXR-L2 compared on the things that decide a purchase: price, capability, what actually ships, and estimated costs to your destination.
Delivered price, head to head
No delivered price to United States for these machines yet.
Kondo Kagaku
KHR-3HV
No delivered price
Delivery to United States is unconfirmed. Check with the seller before budgeting.
Kondo Kagaku
KXR-L2
No delivered price
Delivery to United States is unconfirmed. Check with the seller before budgeting.
Nothing here can be priced delivered to United States today. Each robot's datasheet says why, and the concierge can check whether a sourcing route exists.
Compare the details
20 rows, 9 with differences
Scroll within the table to see all details. Model names and row labels stay visible. Unknown specifications remain marked as not published.
| Specification |  Kondo Kagaku KHR-3HV |  Kondo Kagaku KXR-L2 |
|---|---|---|
| Priced configuration | See seller configuration | See seller configuration |
| Listed price | $786 | $443 |
| Class | Hobby | Hobby |
| Who can buy | Consumer | Consumer |
| Status | Shipping now | Shipping now |
| Capability rating | 2/5 | 2/5 |
| Maturity rating | 5/5 | 5/5 |
| Origin | Japan | Japan |
| Size class | Desktop | Desktop |
| Height | 40.1 cm / 1 ft 4 in | 29.5 cm / 1 ft 0 in |
| Footprint (W x D) | 19.4 x 12.9 cm | 19.7 x 10.7 cm |
| Weight | 1.5 kg | 1.1 kg |
| Degrees of freedom | 17 | 16 |
| Battery (listed) | Not published | Not published |
| Payload (listed) | Not published | Not published |
| Hands | No hands, none offered | Hands sold separately |
| Out of the box | After the buyer assembles it with a screwdriver, it walks and plays the supplied motions once motions are loaded from the HeartToHeart4 software over USB. Without the optional radio controller it is driven from a PC. | After assembly it can stand up, walk and play the sample motions (greetings, kicks, punches, getting up from front or back) loaded from HeartToHeart4 on a PC over USB. |
| Development access | Motion programming through Kondo's HeartToHeart4 on Windows. Kondo's support menu lists ICS/KRS servo and RCB board development documents; I could not open the documents themselves, so ROS or open-source support is not established. | Motion programming through Kondo's HeartToHeart4 on Windows. Kondo's support menu lists servo and RCB board development documents and the KXR support blog; I did not open them, so no SDK or ROS support is established for this kit (Kondo sells a separate KXR-A3S arm with a ROS2-ready board). |
| Best for | A hobbyist or competition builder in Japan who wants a metal-geared, expandable biped kit and reads Japanese. | A beginner or student builder in Japan who wants a lighter, cheaper resin-part biped than the KHR series and may later rebuild it into another shape. |
| Listing checked | 2026-11: sources for Kondo Kagaku KHR-3HV | 2026-11: sources for Kondo Kagaku KXR-L2 |
Listed prices may cover different configurations and tax terms. Use the delivered estimates above for your destination. Battery and payload figures are manufacturer specifications, not results from a shared test.
KHR-3HV
In the box
- Light aluminium alloy frame (anodised) and reinforced resin servo arms
- RCB-4HV control board
- 17 KRS-2552R3HV ICS servos
- ROBO Power Cell F3-850 Li-Fe battery
- G3 Charger
- Dual USB adapter HS
- Black servo leads and other parts
- Assembly manual and HeartToHeart4 software by download
Not included
- Radio controller (KRC-5FH sold separately, 15,950 yen incl. tax at Robospot)
- Gyro or accelerometer sensors (RAS-3 set 4,180 yen at Robospot)
- The five extra servos for 22 axes (36,080 yen)
- Hands or grippers
- Assembly is done by the buyer, taking 1 day for an experienced builder and 2 to 3 days normally, per Kondo
- Software and support in English: the shop and support are Japanese-language, software needs Windows 10 or 11
KXR-L2
In the box
- Reinforced resin parts
- RCB-4mini control board
- 16 KRS-3302 ICS servos
- ROBO Power Cell E type 6N-800mAh Ni-MH battery
- BX-32MH charger
- Dual USB adapter HS and other parts
- Assembly manual; HeartToHeart4 motion software and sample motions by download
Not included
- Radio receiver and controller (wired USB to a PC only out of the box)
- Hands or grippers (optional gripper hand sold separately, Switch Science lists it as discontinued)
- Sensors
- Assembly: the buyer builds it
- English-language support: shop and software are Japanese
- Wall adapter for the USB charger on the Switch Science listing
What the evidence tells you
- Highest capability rating
- KHR-3HV and KXR-L2 share 2/5 (tied).
- Highest maturity rating
- KHR-3HV and KXR-L2 share 5/5 (tied).
- Lowest listed weight
- KXR-L2: 1.1 kg.
Capability and maturity are editorial ratings based on specifications and sales availability. They do not measure reliability, autonomy, or performance on your task. Each datasheet shows the scoring factors.