AGV vs AMR — What's the Difference?
If you're exploring warehouse automation, you've likely encountered the terms AGV (Automated Guided Vehicle) and AMR (Autonomous Mobile Robot). While both automate material movement, they work in fundamentally different ways. Here's what you need to know.
AGV: Automated Guided Vehicles
AGVs follow fixed, predetermined paths. They navigate using infrastructure embedded in or on the warehouse floor — magnetic tape, guide wires, painted lines, or QR code markers. The vehicle follows these paths precisely and predictably.
- Fixed route navigation (tape, wire, or markers)
- Highly predictable and repeatable movements
- Lower computing requirements onboard
- Requires physical infrastructure installation
- Route changes require re-laying guide paths
AMR: Autonomous Mobile Robots
AMRs use onboard intelligence to navigate dynamically. Using LiDAR, cameras, and sensor fusion, they build a map of their environment and calculate optimal routes in real time. They can navigate around obstacles and adapt to changing layouts.
- Dynamic navigation using vision, LiDAR, and AI
- No fixed infrastructure required
- Can reroute around obstacles automatically
- Higher onboard computing and sensor cost
- Layout changes require only a software map update
Side-by-Side Comparison
| Feature | AGV | AMR |
|---|---|---|
| Navigation | Fixed paths (tape/wire/markers) | Dynamic (LiDAR/vision/AI) |
| Infrastructure | Requires floor-level guides | No fixed infrastructure |
| Flexibility | Low — route changes need physical work | High — software map updates only |
| Obstacle Handling | Stops and waits | Reroutes around obstacles |
| Setup Cost | Lower vehicle cost, higher infrastructure | Higher vehicle cost, lower infrastructure |
| Best For | Stable, high-volume fixed routes | Dynamic environments with changing layouts |
| Scalability | Adding routes requires physical work | Add routes via software configuration |
| Safety | LiDAR + bumpers + emergency stop | LiDAR + vision + predictive avoidance |
The Modern Reality: Hybrid Systems
The line between AGV and AMR is blurring. Modern autonomous forklifts — including the systems we deploy at Robots Now! — combine the best of both worlds. They use vision-based natural navigation (no floor infrastructure) with fleet management systems that coordinate precise, repeatable routes.
This means you get AMR-level flexibility with AGV-level reliability. Our robotic forklifts can navigate without tape or wires, yet execute tasks with millimetre-level precision for pallet stacking and racking operations.
Which Is Right for Your Warehouse?
The answer depends on your specific operation. Consider:
- How often does your layout change? Frequent changes favour AMR-style navigation.
- How predictable are your routes? Fixed point-to-point runs can use either approach.
- What's your budget model? AGVs may have lower per-unit cost but higher installation cost.
- Do you need outdoor operation? Vision-based systems handle mixed environments better.
We offer free assessments for warehouses with 5 or more forklifts to help you determine the optimal approach for your operation.