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Oceaneering

Bluefin-21

[UND]· 2023
77.9

ROBOSCORE™ METHODOLOGY — 9 DIMENSIONS

Performance22%
Reliability20%
Ease of Use15%
Intelligence15%
Vendor Reliability10%
Value9%
Ecosystem7%
Safety5%
Design4%

Independently verified.
Not manufacturer-provided.

$4.0M

What problem does this solve?

Underwater & Marine applications.

Who is this for?

Enterprise operations teams with dedicated automation budgets and integration requirements.

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Updated Mar 2026·4/4 data completeness·Report an error
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OceaneeringBluefin-21

BEST FOR

Underwater & Marine applications

AVOID IF

Budget is primary constraint and manual alternatives exist

PAYBACK

TBD

COMPLEXITY

TBD

Military-grade large-displacement AUV for deep-ocean search and mine countermeasures. Used in MH370 search. Modular payload bay for side-scan sonar, cameras, and sensor packages.

The Bluefin-21 earns a RoboScore of 77.9/100, placing it in the solid tier for underwater applications robots. At $4.0M it sits in the premium enterprise segment, making it a reasonable choice for teams where overall capability and reliability is the priority. Oceaneering delivers a competent platform at this price point. Deployment requirements vary by facility — consult the manufacturer.

Organizations with strategic automation mandates, dedicated robotics teams, and capital budgets above $500K. If overall capability and reliability is your primary decision criterion, the Bluefin-21 deserves a place on your shortlist.

Any operation without a clear, validated ROI model showing payback within 24 months. If your requirements center on a different set of capabilities, compare alternatives in the underwater category before committing.

Performance
8425%
Reliability
8220%
Ease of Use
6215%
Intelligence
8015%
Value
7210%
Ecosystem
788%
Safety
865%
Design
722%

Other

Depth M4500
Mass Kg750
HeritageMH370 search operations
Length M4.9
Payload BayModular
ApplicationsMCM, search, survey
Endurance Hrs25

The Real Cost of Ownership

Purchase price is only 40-60% of the true cost. Here's the full picture.

Purchase Costs

MSRP

$4.0M

CURRENT

$4.0M

Operating Costs (Annual)

MAINTENANCE LOW

MAINTENANCE HIGH

5-Year Summary

$4.0M

Purchase price + estimated 5 years maintenance

2
$25/hr
1
$4,000,000

Monthly savings

$8,333

Payback period

N/A

3-year net ROI

-92%

5-year savings

-$3,500,000

IntervalTaskEst. Cost
DailyVisual inspection & debris removal
WeeklySensor calibration check & log review
MonthlyLubrication, belt/chain tension check$50–150
6-MonthFull mechanical inspection & software update$500–2,000
AnnualComprehensive overhaul & recalibration$2,000–10,000

Service Details

Warranty:Contact Vendor
Support:Contact Vendor
Response:Contact Vendor
Spare Parts:Contact Vendor

Operator Training

Contact Vendor

Typical Training Plan

SAFETY & BASICS

2–4 hours

OPERATIONS

4–16 hours

TROUBLESHOOTING

2–8 hours

MAINTENANCE

4–16 hours

Before purchasing the Bluefin-21, ask the vendor these critical questions:

  1. 01What is the total cost of ownership over 5 years?
  2. 02What does the warranty cover, and what's excluded?
  3. 03What is your average response time for critical issues?
  4. 04Can you provide references from similar deployments?
  5. 05Is a pilot program available before full commitment?

... and 15 more critical questions

77.9/ 100
Performance
8425%
Reliability
8220%
Ease of Use
6215%
Intelligence
8015%
Value
7210%
Ecosystem
788%
Safety
865%
Design
722%

Purchase Price

$4.0M

Est. Annual Maintenance

Est. $600,000–$800,000/year (15–20%)

5-Year Total

Requires pricing data

Cost per Shift

Cost per Hour

Based on industry averages. Actual costs vary.

Oceaneering

Founded

EST. 1964(62 years)

Funding

Undisclosed

Employees

Undisclosed

HQ

US

Vendor Health Score

Health score pending verification

Certifications data being verified. Contact manufacturer for compliance documentation.

Not sure if Bluefin-21 is right for you? Ask Robotimus.

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How much does the Bluefin-21 cost?
The Bluefin-21 is currently priced at $4.0M. Total cost of ownership including maintenance, integration, and training is typically 1.5-2.5x the purchase price over 5 years.
What certification do I need to operate the Bluefin-21?
Operators should hold at minimum an RCO Foundation (Level 1) certification. For programming and integration work, RCO Specialist (Level 2) is recommended.
How long does it take to deploy the Bluefin-21?
Deployment timelines for Underwater & Marine robots typically range from 2-12 weeks depending on facility complexity and integration requirements.
Should I buy, lease, or hire the Bluefin-21?
Buy if you plan to use it for 3+ years at high utilization. Lease (typically $111,111/month) if you want flexibility and upgrades. Hire through RoboWork if you need it for a project or pilot — no capital expenditure required.
How does the Bluefin-21 compare to alternatives?
With a RoboScore of 77.9/100, the Bluefin-21 scores competitively for Underwater & Marine. Use our comparison tool to evaluate it against up to 2 other robots across all 8 scoring dimensions.