Kinova Gen3 (7DoF) vs Franka FR3: Two Seven-Axis Research Arms

Both arms have seven “Degrees of Freedom (DOF) in Humanoid Robots”, so the same mechanical flexibility in avoiding obstacles and reaching awkward spots. The Gen3 has a 4 kg payload and a 902 mm reach, the FR3 a 3 kg payload and an 855 mm reach. The Gen3 is thus a kilogram stronger and about 47 mm longer in reach. Kinova stresses closed-loop control at 1 kHz, joints with unlimited rotation and a station set-up in under 30 minutes. It also has integrated torque sensors and an optional 2D/3D vision module, which is not listed as standard for the FR3. The FR3 has a torque sensor in each of its seven joints, force regulation at 1 kHz, ±0.1 mm repeatability, a mass of 18 kg and a height of 110 cm; for the Gen3 we have no confirmed repeatability or mass.

The differences in philosophy matter more than the numbers. The FR3 is meant for researchers: a controller based on an Intel processor with Linux, the open libfranka library and ROS integration make it easy to write your own controllers, including learning-based approaches that “VLA Models: How AI Controls Humanoid Robots in 2026” discusses. The Gen3 is closer to assistive and medical uses, and Kinova also offers a lighter variant, the Kinova Gen3 Lite. The strain-wave gears used in such arms are made by firms like Harmonic Drive, and force sensors are also a market of their own, for example ATI Industrial Automation. How to pull only comparable items from datasheets is shown in “How to Read a Robot Datasheet”.

The prices of the two arms are similar, but neither comes from an official price list. For the Gen3, sources give a standard B2B range of 30,000–35,000 USD and special configurations up to 50,000 USD; for comparison we take the top of the standard range, 35,000 USD, which converts to roughly 130 thousand zloty. For the FR3 the spread is about 25,000–35,000 USD, and one European reseller gives 25,250 EUR with a delivery time of 17 days. These are estimates, not manufacturer offers, so treat the figure as a guide before you enquire.

Neither company has confirmed a Polish representative. Kinova sells most often through international distributors of research equipment, Franka through European resellers such as Vention. For a Polish university this usually means a scientific-equipment tender with enquiries to several suppliers, and time and formalities may weigh more than the price difference. It is worth writing the requirement for documentation, training and delivery time into the enquiry at once; general tips for purchases of this kind are collected in “How to Buy a Cobot Step by Step”.

The Gen3 is more often pointed to for medical and assistive robotics and for laboratory automation. A team that wants to build a station with built-in vision will save on integrating an extra camera, and the lightweight design suits projects where the arm rides on a cart or platform. For research on the edge of healthcare, for example assistive robots for people with limited mobility, it is also considered in the context of the hospital — check in the documentation whether a particular configuration has the necessary approvals and certificates.

The FR3 dominates where the study of manipulation and force interaction counts: teams at the university and in the laboratory readily reach for it to teach robots by demonstration and for experiments with impedance control. If you plan a mobile platform with two arms, see the Franka Mobile FR3 Duo; if you want an alternative with a stronger emphasis on force control, compare with the Flexiv Rizon 4.