Boston Dynamics StretchvsRefraction AI Refraction AI REV-1
Side-by-side comparison of Boston Dynamics Stretch and Refraction AI Refraction AI REV-1: specs, price, use cases and SDKs.

Boston Dynamics
Stretch
Box-moving robot for trailer unload and palletizing
From
$0

Refraction AI
Refraction AI REV-1
Autonomous three-wheeled robot for last-mile food and grocery delivery.
From
$5,000
Specifications
| Spec | Stretch | Refraction AI REV-1 |
|---|---|---|
| Price (USD) | $0 | $5,000 |
| Category | industrial | industrial |
| Payload | 23 kg | 22.7 kg |
| Runtime | 16 h | 7 h |
| Speed | 1.5 m/s | 6.7 m/s |
| Weight | 1200 kg | 45 kg |
| Reach | — | 3.5 miles (5.6 km) radius |
| Degrees of Freedom | 7 | null |
| Battery | Auto-charge during pickup pauses | air-cooled lithium-ion battery |
Shared use cases
No shared use cases
Only on Stretch
- Trailer / container unloading
- Mixed-SKU palletizing
- Bulk depalletizing
Only on Refraction AI REV-1
- Food delivery
- Grocery delivery
- Last-mile logistics
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