Bluefin-21 vs VideoRay Defender
Head-to-head comparison of Oceaneering Bluefin-21 and VideoRay VideoRay Defender. Updated 2026.
Last updated: September 27, 2026
Overall Score
77.9/ 100
Bluefin-21
Oceaneering
77.9/ 100
VideoRay Defender
VideoRay
Score Breakdown
84
Performance76
82
Reliability80
62
Ease of Use82
80
Intelligence72
72
Value80
78
Ecosystem75
86
Safety85
72
Design75
Specs Comparison
| Spec | Bluefin-21 | VideoRay Defender |
|---|---|---|
| Price | $4,000,000 | $120,000 |
| Depth M | 4500 | 305 |
| Mass Kg | 750 | 8 |
| Heritage | MH370 search operations | — |
| Length M | 4.9 | — |
| Payload Bay | Modular | — |
| Applications | MCM, search, survey | — |
| Endurance Hrs | 25 | — |
| Sonar | — | Integrated navigation |
| Cameras | — | HD + low-light |
| Thrusters | — | 6 |
| Application | — | Port security, hull inspection, MCM |
| Current Tolerance Kts | — | 3 |
Buyer Intelligence
| Metric | Bluefin-21 | VideoRay Defender |
|---|---|---|
| Vendor Health Score | — | — |
| 5-Year TCO Estimate | $5,600,000 | $168,000 |
| Annual Maintenance | — | — |
| Support Model | — | — |
| Safety Certifications | — | — |