Hello Robot Stretch 4vsLabrador Systems Labrador Retriever

Hello Robot Stretch 4 leads on 4 of 7 dimensions — strongest on deployment readiness.

Stretch 4

2 wins

Labrador Retriever

1 wins

Category breakdown

Readiness, uptime, navigation & connectivity

Stretch 4

72
Deployment readiness
45
60
Maintenance confidence
60
Vision-led navigation (estimated)
Navigation
Vision-led navigation (estimated)
Wi-Fi / cloud fleet management (estimated)
Connectivity
Wi-Fi / cloud fleet management (estimated)

Price accessibility and ROI clarity

Labrador Retriever

Payload, speed, runtime & labor replacement

Even

45
Labor replacement
30
2.5 kg (arm extended); 4 kg (arm retracted)
Payload
Up to 25 pounds total; trays carry up to 10 pounds each
60 cm/s (top speed)
Speed
unknown
Up to eight hours of runtime
Battery
Day-long with 4-hour self-charging

Environment fit, footprint & long-term upside

Stretch 4

85
Environment fit
70
78
Future potential
60
43 cm diameter base; 160 cm height
Footprint
Caddie fixed height 30"; Retriever adjustable 25–38" upper deck, 11–24" lower deck

Stretch 4 · Best for

Assistive feeding, hygiene support, and fetching items for individuals with quadriplegia or severe mobility impairments

Labrador Retriever · Best for

Delivering pre-plated meals from a refrigerator-compatible tray system during the workday for seniors with limited mobility

Final judgment

If immediate deployment is the priority, choose Stretch 4. If the goal is to be ready when Labrador Retriever's capabilities mature, track it.