The humanoid robot has become the new face of factory automation. It can walk between workstations, pick up components, and potentially operate equipment originally designed for people.

Yet, away from the carefully edited demonstrations, conventional industrial robots continue to perform most automated factory work. 

This raises a less glamorous but more important question: Will factories be transformed by human-shaped machines, or by increasingly capable versions of the robots they already use?

The answer depends on what manufacturers need. Humanoids promise flexibility, but industrial robots offer something factories value even more: proven productivity.

Industrial robots already have a formidable lead

Industrial robots do not need to wait for their breakthrough moment. It happened decades ago.

Factories installed 542,000 industrial robots in 2024, while the number operating worldwide reached approximately 4.66 million, according to the International Federation of Robotics. Annual installations have exceeded 500,000 for four consecutive years.

That installed base has created an ecosystem of manufacturers, software developers, component suppliers, safety specialists and maintenance technicians. Companies know how to calculate the return on a robotic arm used for welding, painting, palletizing or assembly.

Purpose-built robots also have a mechanical advantage. A fixed arm does not need to walk, balance, or understand an entire factory. It only has to perform a defined movement quickly and accurately, sometimes thousands of times a day.

When a production task rarely changes, specialization beats versatility. A machine optimized for one operation will usually be faster, more reliable, and easier to maintain than a general-purpose humanoid.

Collaborative robots are also weakening one of the main arguments for humanoids. These machines can work closer to people and be reprogrammed for different tasks. Cobots represented 10.5% of industrial robot installations in 2023, the IFR reported.

Humanoids, therefore, are not competing against yesterday’s factory robots. They are competing against an established technology that is becoming safer and more adaptable.

Humanoids could automate the gaps

Industrial robots are effective when factories can organize work around them. The calculation changes when manufacturers cannot justify rebuilding a production line for one difficult or irregular task.

Factories are filled with stairs, carts, shelves, tools and workstations designed for the human body. A humanoid could enter these environments without requiring new conveyors, protective cages or major structural changes.

The same robot might also perform several jobs. It could deliver components, tend a machine and inspect parts at different points during a shift. 

If manufacturers can add abilities through software, one hardware platform could eventually replace several narrowly designed systems. Early deployments show where this opportunity may emerge.

Mercedes-Benz is testing Apptronik’s Apollo humanoid for moving components and carrying out initial quality checks. The company is initially concentrating on repetitive intralogistics work rather than core vehicle assembly. 

In logistics, GXO signed a multiyear agreement with Agility Robotics to deploy Digit. At a Spanx facility, the humanoid moves totes from mobile robots and places them onto conveyors.

These are real jobs, but they also reveal the current limits of the technology. Humanoids are beginning with controlled, repetitive material-handling tasks—not roaming factories and independently switching between dozens of operations.

The winner will be decided by economics

A humanoid’s humanlike design is useful only when the task requires it. Two legs consume energy and introduce the risk of falling. Dexterous hands add mechanical complexity, while autonomous software must remain dependable throughout production.

Battery life presents another hurdle. Agility Robotics said in 2025 that upgrades had extended Digit’s operating time to up to four hours. Continuous factory work may still require charging, battery swaps or multiple robots.

Factories ultimately measure machines through output, uptime, safety and cost – not how closely they resemble workers.

For that reason, industrial robots will transform factories first. They already operate at scale and remain the better choice for stable, high-volume processes.

Humanoids will not sweep them aside. Their opportunity is to automate the spaces between conventional robotic cells: jobs that require mobility, adaptability, and interaction with human-designed surroundings.

The future factory will likely use both. 

Fixed robots will dominate repetitive production, mobile robots will transport goods, cobots will share workstations with people, and humanoids may tackle the stubborn tasks that earlier forms of automation could not reach.