UR5e vs RealMan ECO65-B: 5 kg Cobot Comparison of Price, Reach and Weight
Updated: 8 hours ago
IN A NUTSHELL
🔎 THE KEY DIFFERENCE Both are compared at 5 kg. Universal Robots UR5e has the longer stated reach, which may help reach separated fixtures; it does not guarantee access at every tool angle. |
→ CONSIDER Universal Robots UR5e Consider it when extra reach is useful while the compared load capacity is the same. This article compares 5 kg with a published reach of 850 mm; include the gripper and part in the load. |
→ CONSIDER RealMan ECO65-B Consider it when its stated load and reach already cover your task and its controls fit your equipment. This article compares 5 kg with a published reach of 610 mm; include the gripper and part in the load. |
💡 THE TAKEAWAY Check the real tool, movement path and safety assessment before choosing. A collaborative label does not make every task safe without guarding; compare complete installation quotes. |
The Universal Robots UR5e and the RealMan ECO65-B both carry 5 kg. The UR5e reaches 240 mm further, repeats more tightly and has a full industrial feature set. The ECO65-B weighs 7.8 kg with its controller in the base and costs about 68% less.
Quick verdict. The UR5e is the better choice for production cells, with 850 mm reach, ±0.03 mm repeatability, a force/torque sensor and documented safety functions. The RealMan ECO65-B is the better choice for mobile, battery-powered and low-cost platforms, with a 7.8 kg arm, a 24 V DC supply and a listed price about 68% lower.
UR5e and RealMan ECO65-B at a glance
The UR5e carries 5 kg over 850 mm, repeats to ±0.03 mm and weighs 20.6 kg.
The RealMan ECO65-B carries 5 kg over 610 mm, repeats to ±0.05 mm and weighs 7.8 kg with the controller inside its base.
Main specification comparison
Specification | Universal Robots UR5e | RealMan ECO65-B |
Brand | Universal Robots | RealMan |
Listed price | $35,000 | $11,110 |
Payload | 5 kg | 5 kg |
Reach | 850 mm | 610 mm |
Repeatability | ±0.03 mm | ±0.05 mm |
Axes | 6 | 6 |
Speed | 180°/s maximum joint speed on all six joints | TCP up to 1.8 m/s; joints 1-2: 180°/s; joints 3-6: 225°/s |
Arm weight | 20.6 kg | 7.8 kg |
IP rating | IP54 | Not specified |
Controller | UR control box CB 5.2 / CB 5.5 | Integrated in the robot base |
Price comparison

UR5e: listed from $35,000
RealMan ECO65-B: listed from $11,110
Difference: $23,890
The ECO65-B costs roughly 68% less
Reach and precision
Both arms carry 5 kg. The UR5e reaches 850 mm, 240 mm more, and publishes ±0.03 mm repeatability against ±0.05 mm. Machine tending and packaging over a full workstation favor the UR5e.
Weight, power and integration

The ECO65-B weighs 7.8 kg, about 12.8 kg less, runs from a 24 V DC supply with a typical draw of 150 W and houses its controller in a 107 mm base. All six joints have mechanical brakes. That makes it practical for mobile robots and battery-powered platforms.
Industrial features
The UR5e has a built-in 50 N / 10 Nm force/torque sensor, 17 configurable safety functions, IP54 and PROFINET with PROFIsafe, EtherNet/IP, Modbus TCP and ROS/ROS2 support, with UR+ accessories. RealMan publishes a 1.8 m/s TCP speed for the ECO65-B.
Best applications for the UR5e

Machine tending up to 5 kg
Force-controlled screwdriving
Packaging and kitting
Best applications for the ECO65-B
Mobile and battery-powered robots
Research and embodied-AI platforms
Low-cost light handling
UR5e advantages

850 mm reach
±0.03 mm repeatability
Full industrial feature set
UR5e limitations
About $23,890 higher listed price
20.6 kg arm
ECO65-B advantages
About 68% lower listed price
7.8 kg arm with integrated controller
24 V DC supply
ECO65-B limitations
610 mm reach
±0.05 mm repeatability
Final verdict
Choose the UR5e for production cells. Choose the RealMan ECO65-B for mobile and low-cost platforms at about a third of the price.
Sources and further reading
Frequently asked questions
Which is cheaper, the UR5e or the RealMan ECO65-B?
The ECO65-B is listed from $11,110 and the UR5e from $35,000, a difference of $23,890.
Do both robots carry 5 kg?
Yes. Both are rated for 5 kg.
Which robot has the longer reach?
The UR5e reaches 850 mm and the ECO65-B 610 mm.
Which robot is lighter?
The ECO65-B weighs 7.8 kg and the UR5e 20.6 kg.
Which robot is more precise?
The UR5e publishes ±0.03 mm repeatability and the ECO65-B ±0.05 mm.
Which robot should I buy?
Choose the UR5e for production. Choose the ECO65-B for mobile and low-cost platforms.



