Hello Robot Stretch 4vsSony aibo ERS-1000
For tech-enthusiast households seeking a no-maintenance alternative to pet ownership (no walks, no shedding, no vet bills)., aibo ERS-1000 is easier to deploy today — Stretch 4 is the longer bet on capability.
Stretch 4
2 wins
aibo ERS-1000
1 wins
Category breakdown
Deploy & operate
Readiness, uptime, navigation & connectivity
- 72Deployment readiness82
- 60Maintenance confidence60
- Vision-led navigation (estimated)NavigationVision-led navigation (estimated)
- Wi-Fi / cloud fleet management (estimated)ConnectivityWi-Fi / cloud fleet management (estimated)
Cost & ROI
Price accessibility and ROI clarity
- 72Price accessibility95
- 58ROI clarity35
Capability
Payload, speed, runtime & labor replacement
- 45Labor replacement0
- 2.5 kg (arm extended); 4 kg (arm retracted)PayloadNone (companion robot)
- 60 cm/s (top speed)Speed
- Up to eight hours of runtimeBatteryApproximately 120 minutes in standard mode operation
Fit & future
Environment fit, footprint & long-term upside
- 85Environment fit78
- 78Future potential72
- 45 cm diameter base; 160 cm heightFootprint180 × 293 × 305 mm (W × D × H)
Stretch 4 · Best for
Assistive feeding, hygiene support, and fetching items for individuals with quadriplegia or severe mobility impairments
aibo ERS-1000 · Best for
Tech-enthusiast households seeking a no-maintenance alternative to pet ownership (no walks, no shedding, no vet bills).
Final judgment
If immediate deployment is the priority, choose aibo ERS-1000. If the goal is to be ready when Stretch 4's capabilities mature, track it.