Boston Dynamics StretchvsUniversal Robots UR20
Side-by-side comparison of Boston Dynamics Stretch and Universal Robots UR20: specs, price, use cases and SDKs.

Stretch
Box-moving robot for trailer unload and palletizing

UR20
Heavy-payload cobot (20kg, 1.75m reach) — UR's biggest arm
Specifications
| Spec | Stretch | UR20 |
|---|---|---|
| Price (USD) | $0 | $65,000 |
| Category | industrial | industrial |
| Payload | 23 kg | 20 kg |
| Runtime | 16 h | — |
| Speed | 1.5 m/s | — |
| Weight | 1200 kg | 64 kg |
| Reach | — | 1750mm |
| Degrees of Freedom | 7 | 6 |
| Battery | Auto-charge during pickup pauses | — |
- Trailer / container unloading
- Mixed-SKU palletizing
- Bulk depalletizing
- Palletizing
- End-of-line packaging
- Machine tending
- Heavy material handling
When to pick which
Choose Boston Dynamics Stretch for high-volume logistics centers and 3PL providers requiring autonomous trailer unloading and container stripping. Its 1200kg mobile base and 7 degrees of freedom allow it to navigate directly into trailers, a task impossible for fixed arms. With a 23kg payload and 16-hour runtime supported by auto-charging, Stretch is designed for continuous multi-shift operations in large-scale warehouses. It excels in dynamic environments where the robot must move between different loading docks to handle mixed-SKU palletizing or bulk depalletizing, leveraging the BD Orbit fleet management for large-scale deployment coordination.
Opt for the Universal Robots UR20 in manufacturing environments, such as food and beverage packaging or CNC machine shops, where space is limited and human-robot collaboration is required. At only 64kg, the UR20 is easily integrated into existing production lines for end-of-line palletizing or heavy material handling without the massive footprint of a 1200kg mobile unit. Its 1750mm reach and 20kg payload are optimized for standard pallet patterns. The UR20 is the superior choice for buyers needing a versatile, safety-rated cobot that supports rapid redeployment and deep software customization via Polyscope X or ROS2.
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