CyberKnife S7 vs Stretch 4
Accuray Incorporated vs Hello Robot — specs, price, and data-backed comparison.
SPECIFICATIONS COMPARED
| CyberKnife S7 | Stretch 4 | |
|---|---|---|
| Company | Accuray Incorporated | Hello Robot |
| Category | Ground | Ground |
| Price: | Not announced | Not announced |
| Released: | — | 2026 |
| Weight | — | 46 kg |
| Degrees of Freedom | — | 9 |
| Connectivity | Hospital imaging and IT systems | — |
| Software / AI | Accuray Precision® Treatment Planning, VOLO™ optimizer | — |
Buying guides and prices
FREQUENTLY ASKED QUESTIONS
What is the difference between the CyberKnife S7 and the Stretch 4?
CyberKnife S7 is made by Accuray Incorporated, while Stretch 4 is made by Hello Robot. Both are grounds, so the differences come down to price and specifications.