PARO vs Stretch 4
AIST (National Institute of Advanced Industrial Science and Technology) vs Hello Robot — specs, price, and data-backed comparison.
PARO
AIST (National Institute of Advanced Industrial Science and Technology)
Not announced
Stretch 4
Hello Robot
Not announced
SPECIFICATIONS COMPARED
| PARO | Stretch 4 | |
|---|---|---|
| Company | AIST (National Institute of Advanced Industrial Science and Technology) | Hello Robot |
| Category | Ground | Ground |
| Price: | Not announced | Not announced |
| Released: | — | 2026 |
| Weight | Approx 2,5 kg | 46 kg |
| Degrees of Freedom | — | 9 |
| Connectivity | Standalone; optional connectivity for data logging | — |
| Software / AI | Behavioral interaction AI | — |
Buying guides and prices
FREQUENTLY ASKED QUESTIONS
What is the difference between the PARO and the Stretch 4?
PARO is made by AIST (National Institute of Advanced Industrial Science and Technology), while Stretch 4 is made by Hello Robot. Both are grounds, so the differences come down to price and specifications.