Quick Verdict
If you need to handle heavy parts in an automated cell, the FANUC M-16iB/20 is the industrial workhorse. If you need an approachable, self-contained humanoid for a classroom, lab, or public demo, the SoftBank NAO V6 is the more complete package. Your choice comes down to whether you're building a production line or a robotics learning environment.
Comparison at a Glance
| Robot | Price | Condition | What it is | Best for |
| FANUC M-16iB/20 | USD 1,800 | Used | Six-axis industrial arm with 20 kg payload | Moving heavy parts in industrial automation |
| SoftBank NAO V6 | USD 10,000 | New - Open box | Autonomous humanoid programmable robot | Education, research, public-facing interaction |
Where the FANUC M-16iB/20 Wins
The FANUC is a 6-axis industrial robot arm with a payload rating that makes it a serious tool for moving heavy parts. It was built in 2005 and is sold as used, arm only. For a shop or integrator who already has a FANUC controller or a compatible control system, this arm can be a low-cost way to add real capacity. The price also leaves room in the budget for the controller, teach pendant, cabling, and tooling you'll need to bring it to life. If you're looking for a project that gives you a real industrial robot without buying new equipment, the M-16iB/20 is the clear pick.
Where the SoftBank NAO V6 Wins
The NAO V6 is a completely different kind of robot: an autonomous humanoid that you can program. It comes in new open-box condition, meaning the unit hasn't been used by you but it may have been opened for inspection. For educators, researchers, and developers, the humanoid form makes it easier to demonstrate locomotion, speech, and interaction. Because it's a self-contained humanoid, it doesn't require an external controller or teach pendant. If your goal is to teach programming, study human-robot interaction, or run public demos, the NAO V6 is the more turnkey option.
Product Notes
#### FANUC M-16iB/20 INDUSTRIAL ROBOT ARM A05B-1216-B202 2005 ARM ONLY USED
This robot arm is a genuine FANUC M-16iB/20 with the A05B-1216-B202 designation. The spec sheet lists a 20 kg payload, 6 axes, and a weight of 486 LBS (about 220 kg without controller). The unit shows cosmetic wear, paint loss, and signs of prior industrial use, which is expected for a 2005-era used arm. The biggest thing to know: it is the arm only. No controller, teach pendant, or cables are included. If you don't already have a compatible control setup, you'll need to factor that into your project budget. That said, if you're comfortable sourcing those pieces, the $1,800 price for a 20 kg six-axis arm is a strong value.
#### SoftBank Robotics NAO V6 H25600 Autonomous Humanoid Programmable Robot NAO6
This is a NAO V6 humanoid robot from SoftBank Robotics, identified by model H25600. It's in new open-box condition, so you're getting an untouched, never-used unit that was simply opened before purchase. The NAO V6 is designed for autonomous behavior and programmable interaction, making it a fit for classrooms, research labs, and showrooms. At $10,000, it costs $8,200 more than the FANUC arm, but it delivers a completely different experience: no external controller needed, a humanoid form factor, and out-of-box programmability. If you need a humanoid for teaching or public engagement, the NAO V6 is the one to take home.
Final Choice by Use Case
If you're setting up an industrial cell and need real robot arms with payload capacity, the FANUC M-16iB/20 is the right starting point, provided you can handle the controller and cabling requirements. If you're building a robotics curriculum, a research prototype, or an interactive display, the SoftBank NAO V6 is the more complete, self-contained humanoid. For most industrial automation work, the FANUC arm makes sense. For education and interaction, the NAO V6 is the better match.
