Comparison
AMR vs AGV: which fits your warehouse?
An AGV (automated guided vehicle) follows a fixed path: magnetic tape, wire, floor markers or reflectors. An AMR (autonomous mobile robot) builds a map of the building and plans its own route around people and obstacles.
Choose an AGV for high-volume, repeatable routes that rarely change. Choose an AMR when layouts shift, people share the aisles, or you want to start with a few units and grow.
Brighter Robots helps businesses find the right robot for their operation. Specialized AI agents research the options, check the vendors and run the numbers for manufacturing, warehouses and restaurants. You approve every step.
What is an AGV?
An automated guided vehicle moves material along a route it is told to follow. Guidance comes from infrastructure in the building: magnetic tape or wire in the floor, floor markers or a grid, or wall reflectors for laser guidance.
If something blocks the path, an AGV stops and waits. Changing the route means changing the infrastructure. Autonomous forklifts, tuggers and conveyor-top vehicles have all shipped as AGVs.
What is an AMR?
An autonomous mobile robot carries its own map and sensors. It localizes itself with lidar and cameras, plans a route to a destination and re-plans around a pallet, a person or a forklift in the way.
Fleet software assigns jobs and manages traffic. Catalog examples include Mobile Industrial Robots (MiR), Locus Robotics, OTTO Motors and Omron LD-series robots.
What are the key differences?
- Navigation: AGV follows fixed guidance; AMR navigates from a map and sensors.
- Infrastructure: AGV needs tape, wire, markers or reflectors installed; AMR needs a mapping run and usually wireless coverage.
- Route changes: AGV routes change when the floor changes; AMR routes change in software.
- Blocked path: AGV stops; AMR re-plans or waits, depending on settings.
- Mixed traffic: AMRs are built to share aisles with people; AGVs prefer dedicated lanes.
- Starting size: AMRs commonly start with a few units; AGV systems are usually designed as a whole.
- Throughput: fixed-path AGVs and grid systems can be very predictable at high volume; AMR throughput depends on traffic and layout.
Why does the choice matter?
The choice sets your install cost, your flexibility and your safety approach. Infrastructure for AGVs is a one-time cost tied to a layout. AMRs trade that for per-unit cost and software, and let you change the layout later.
Safety standards differ too. Driverless industrial trucks are covered by ISO 3691-4. Industrial mobile robots have ANSI/RIA R15.08. Ask any vendor which standard their robot is tested against and how speed, zones and stops are configured for shared aisles.
Neither type is "better". A site with one long, busy, unchanging route may be best served by an AGV or even a conveyor. A site with changing SKUs, seasonal layouts and people in the aisles usually fits AMRs.
How to decide
Map the flow
Draw the route material takes today, how often, and what gets in the way. One flow at a time. See how to choose a warehouse robot.
Ask how often it changes
If the route and the layout have not changed in years and will not, fixed guidance is fine. If you re-slot, add racks or run seasonal peaks, lean AMR.
Count the people in the path
Shared aisles with pickers and forklifts push you toward AMRs with safety-rated sensors. Dedicated lanes open the door to AGVs.
Decide how you want to start
A pilot of a few AMRs on one flow is a common first step. See the robot pilot checklist for what to measure.
Check the building
Floor condition, slopes, aisle width, door heights and wireless coverage all matter. A floor scan or plan helps vendors answer honestly.
Brighter Robots does this comparison for your building, not in general. Our agents shortlist the vehicles that fit your flows and check what the vendors can prove. Contact us to start.
Frequently asked questions
Is an AMR always better than an AGV?
No. AGVs and fixed grid systems can be more predictable at high volume on routes that never change. AMRs win when layouts change or people share the aisles.
Can AGVs and AMRs run in the same warehouse?
Yes. Many sites run fixed-path vehicles on a few busy lanes and AMRs for everything else. Traffic rules and fleet software need to be agreed up front.
Do AMRs need Wi-Fi?
Most fleets rely on wireless coverage to receive jobs and report position. Coverage gaps are a common pilot problem, so test it before the robots arrive.
Which safety standards apply?
ISO 3691-4 covers driverless industrial trucks. ANSI/RIA R15.08 covers industrial mobile robots in the United States. Ask the vendor which applies and how the robot is configured for your site.
Which is cheaper?
It depends on the site. AGVs carry infrastructure cost tied to a layout; AMRs carry per-unit and software cost. Brighter Robots does not publish prices. Ask for a cost view through Contact us.