FIFISH X1 Mission ROV

The QYSEA FIFISH X1 is a Mission ROV engineered for offshore energy, subsea infrastructure, and large-vessel inspection. Featuring 4.5-knot propulsion, 4.0-knot current holding, and a 15 kg modular NDT payload platform, it delivers AI-driven non-destructive testing (UTG, CP, measurement) at depths to 350 m. A direct power cable supply enables 24/7 continuous operation without battery limitations—ideal for Oil & Gas, Wind Energy, and maritime inspection missions.

FIFISH X1 Mission ROV

The QYSEA FIFISH X1 is a next-generation Mission ROV precision-engineered for offshore energy, subsea infrastructure, and large-vessel inspection. It pairs 4.5-knot propulsion with 4.0-knot current holding, a 15 kg modular payload platform, and full AI-driven non-destructive testing (NDT) capabilities—delivering a new paradigm of continuous 24/7 underwater inspection via direct power supply.

🔗 Official QYSEA FIFISH X1 Product Page

Key Features

Enhanced 4.5-Knot Propulsion

Powered by the Q-Motor Pro and a six-motor vector layout, FIFISH X1 enables rapid and precise inspections. Its modular design allows quick thruster swaps, while built-in alert systems provide adaptive protection against overcurrent, overvoltage, and overload.

FIFISH X1 Q-Motor Pro six-motor vector propulsion layout

Stable Hovering at 4.0 Knots — Precise Inspections

FIFISH X1 features forward and downward Q-DVL modules with advanced AI algorithms for precise navigation and stable hovering even in 4.0-knot currents—enabling controlled, accurate inspection runs in the most challenging open-water environments.

FIFISH X1 Q-DVL stable hovering in current

15 kg Payload — Four Q-Interface Power Ports

X1 supports the most demanding inspection tasks with a maximum payload capacity of 15 kg and four Q-interface power ports, enabling simultaneous deployment of multiple inspection and NDT tool systems.

FIFISH X1 15kg payload Q-interface ports

1+N NDT & Modular Tool Skids

A modular payload design enables rapid tool changes and integration—within 5 minutes—for maritime and offshore environments. Compatible with a wide range of NDT tools, manipulators, and imaging sonars.

Ultrasonic Thickness Gauge

Ultrasonic Thickness Gauge (UTG)

Cathodic Protection Tool

Cathodic Protection (CP) Tool

Multi-parameter Sensor

Multi-parameter Sensor

Water Jet Cleaner

Water Jet Cleaner

FIFISH X1 NDT modular tool skids

AI Inertial Navigation — U-INS Plus

The U-INS Plus fused navigation system combines advanced hardware and software. Forward- and downward-facing Q-DVL modules deliver stable current resistance, real-time depth control, 3D route planning, and point marking—making underwater inspections smarter and more intuitive.

FIFISH X1 U-INS Plus AI inertial navigation

AI Non-Destructive Measurement (QY-MT)

The AI-driven QY-MT system uses proprietary vision algorithms to deliver millimeter-accurate measurement of offshore structures, subsea pipeline cracks, bridge scour, and hull coating damage. Offline data capture enables one-click non-destructive measurements—setting a global benchmark for underwater inspections.

FIFISH X1 AI QY-MT non-destructive measurement

AI Collision Avoidance

A tri-directional collision avoidance sonar system scans the surrounding environment in real time to prevent collisions. Customizable avoidance distance settings ensure enhanced operational safety when navigating complex subsea platforms and structures.

FIFISH X1 AI tri-directional collision avoidance

Direct Power Supply — Uninterrupted 24/7 Operation

FIFISH X1 uses a direct power cable supply, removing battery limitations and enabling continuous 24/7 operation. Ideal for long-duration, high-intensity tasks and continuous monitoring while reducing costs related to operational interruptions and battery replacements.

FIFISH X1 direct power supply system

All-in-One Display — Q-iRC Controller

Optimized for ROV control, HD media, and AI—enabling smarter, faster operations. Features a 7″ Full HD display with up to 1,500 nits brightness, delivering crystal-clear visuals even in direct sunlight. Mission Log Recording, Accessory Window Switching, Real-Time Data Sync, and an all-in-one Accessory Portal are all integrated into a single interface.

FIFISH X1 Q-iRC all-in-one display controller

Technical Specifications

Parameter Specification
Max Speed 4.5 Knots
Max Current Holding 4.0 Knots
Operating Depth 350 m
Max Payload 15 kg
Payload Switch Time < 5 minutes
Unit Weight ≤ 30 kg
Compact Size 0.17 m³
Operating Time Continuous (Direct Power, 24 h × 7)
Power Interface 4× Q-interface power ports
Propulsion Six-Motor Vector Layout, Q-Motor Pro
Attitude Precision ±0.1°
Omnidirectional Control 360°
Camera System Dual 4K UHD, 1/1.8″ CMOS sensors
Lighting 12,000 Lumens, 120° wide, dual LED
Navigation System U-INS Plus (Forward + Downward Q-DVL)
Collision Avoidance Tri-directional sonar, customizable distance
NDT Tools (built-in support) UTG, CP Tool, Multi-parameter Sensor, Water Jet Cleaner
AI Measurement QY-MT (millimeter-accurate, offline capture)
Controller Display Q-iRC, 7″ Full HD, up to 1,500 nits
Swappable Battery Optional

Marine Applications

Offshore Oil and Gas inspection with FIFISH X1

Offshore Oil & Gas

Offshore Wind Energy turbine inspection FIFISH X1

Offshore Wind Energy

Large shipping vessel hull inspection FIFISH X1

Large Shipping Vessels

Underwater foundations and pipelines inspection

Underwater Foundations & Pipelines

Frequently Asked Questions

What power supply does the FIFISH X1 use?
The FIFISH X1 uses a direct power cable, enabling continuous 24/7 operation without battery limitations. An optional swappable battery capsule is also available for deployments where a tethered power cable is not practical.
What NDT tools are compatible with the FIFISH X1?
The X1 supports an expanding suite of NDT tools via its modular skid system: Ultrasonic Thickness Gauge (UTG), Cathodic Protection (CP) Tool, Multi-parameter Sensor, and Water Jet Cleaner. It is also compatible with manipulators and imaging sonars. Tool changes take under 5 minutes.
What industries is the FIFISH X1 designed for?
Offshore Oil & Gas, Offshore Wind Energy, Large Shipping Vessels, and Underwater Foundations & Pipelines. The X1 is purpose-built for harsh offshore environments requiring reliable, high-precision inspection and NDT capabilities.
How accurate is the AI Non-Destructive Measurement system?
The QY-MT system delivers millimeter-accurate measurements of offshore structures, pipeline cracks, bridge scour, and hull coating damage using proprietary vision algorithms. Offline data capture enables one-click post-mission analysis without a live connection.
How many people are needed to deploy the FIFISH X1?
The X1 weighs ≤30 kg and is designed for 1–2 person deployment. Its compact 0.17 m³ footprint and streamlined design minimize mobilization time and operational costs.
What is the maximum operating depth?
The FIFISH X1 is rated to 350 m, covering the majority of offshore inspection scenarios including jacket structures, FPSO hulls, subsea pipelines, and wind turbine monopile foundations.
Weight 30 kg
Max Speed

4.5 Knots

Max Current Holding

4.0 Knots

Operating Depth

350 m

Max Payload

15 kg

Payload Switch Time

< 5 minutes

Unit Weight

≤ 30 kg

Compact Size

0.17 m³

Operating Time

Continuous (Direct Power, 24h×7)

Camera System

Dual 4K UHD, 1/1.8" CMOS

Lighting

12, 000 Lumens, 120° wide, dual LED

Navigation

U-INS Plus (Forward + Downward Q-DVL)

Controller

Q-iRC, 7" Full HD, 1500 nits

Brand

QYSEA

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