QYSEA FIFISH X1 is a mission-class ROV (Remotely Operated Vehicle) precision-engineered for underwater non-destructive inspection, offshore energy operations, and open-water environments. Weighing under 30 kg (770×560×400 mm) with 15 kg payload capacity, 350 m depth rating, 4.5-knot max speed, 4.0-knot current holding, dual 4K cameras, 12,000 lumens LED illumination, AI inertial navigation, and 24/7 continuous operation via direct power supply — the FIFISH X1 redefines inspection workflows across offshore energy, subsea infrastructure, and large vessel applications.
Enhanced Propulsion – 4.5-Knot Speed & 4.0-Knot Current Holding

- Q-Motor Pro Six-Motor Vector Layout – Rapid and precise six-degree-of-freedom movement
- Forward: 4.5 Knots / Reverse: 3.5 Knots – High-speed transit to inspection sites
- 4.0-Knot Current Holding – Stable hovering and precise inspections even in strong currents
- Forward Thrust: 30 kg / Reverse: 24 kg / Lateral: 15 kg / Vertical: 21 kg – Powerful force across all axes
- Modular Thruster Design – Quick swaps with built-in overcurrent, overvoltage, and overload protection
High Payload – Versatile NDT Tool Integration

- 15 kg Maximum Payload Capacity – Supports heavy NDT instruments and manipulators
- 4× Q-Interface Power Ports – 29V @ 5A, Ethernet, UART with adaptive voltage range
- 5-Minute Rapid Tool Change – Modular payload bay with stainless steel 316 port interfaces
- 1+N Modular Tool Skids – Compatible with UTG, cathodic protection probes, multi-parameter sensors, water jet cleaners, manipulators, and imaging sonars
Dual 4K Camera System
- Dual 1/1.8″ CMOS 12MP Sensors – 4K UHD video at 25/30 fps, 1080p at up to 90 fps
- Front Camera: f/2.5 aperture, 120° horizontal / 146° diagonal underwater FoV
- Lower Camera: f/1.8 aperture, 87° horizontal / 96° diagonal underwater FoV
- Simultaneous Multi-View Display – Real-time dual camera feed with instant switching
- JPEG + DNG Photo / H.264 MP4 Video – Professional formats for reporting and analysis
- Electronic Image Stabilization (EIS) – Stable footage in turbulent underwater conditions
- 128 GB × 2 Standard Storage – Expandable to 512 GB per slot
12,000 Lumens Dual LED Lighting
- 2× 6,000 Lumen LEDs – 5500K color temperature for accurate underwater color reproduction
- 120° Wide Beam Angle – Exceeding industry standards for broad illumination coverage
- 3 Brightness Levels – Adjustable intensity for varying depth and turbidity conditions
AI-Powered Intelligence
AI Inertial Navigation (U-INS Plus)

Fused navigation combining forward and downward Q-DVL modules with advanced algorithms for stable current resistance, real-time depth control, 3D route planning, point marking, and autonomous positioning — making underwater inspections smarter and more intuitive.
AI Non-Destructive Measurement (QY-MT)

Proprietary vision algorithms enable millimeter-accurate measurement of offshore structures, pipeline cracks, bridge scour, and hull coating damage. Offline data capture allows one-click measurements, setting a global benchmark for underwater NDT.
AI Collision Avoidance

Tri-directional collision avoidance sonar scans the environment in real time with customizable avoidance distance settings, ensuring safe navigation around complex subsea platforms and structures.
24/7 Direct Power Supply – Continuous Operation
- Direct Power Supply System – Continuous 24/7 operation via cable, eliminating battery limitations
- Surface Unit: 460×360×190 mm, 8.4 kg, AC 110V/220V input, 2.2 kW max output, IP55/IP66
- Underwater Unit: 130×130×260 mm, 3.8 kg, 700–800V DC input, 29.2V output, 1.8 kW max, 350m rated
Control Console & Tether
- Q-IRC Controller: 7″ screen @ 1,500 nits, IP54, 8h battery, Wi-Fi 2.4/5 GHz, 8 customizable buttons
- 350m Tether Cable: 9.5 mm diameter, 300 kgf tensile strength
- Spool: 600×430×540 mm, 53 kg, IP66
- Mission Log Voice Memo – Real-time voice annotation during dives
Compact & Deployable
- 0.17 m³ Compact Volume – Maneuvers through tight underwater spaces
- <30 kg Unit Weight – 1–2 person deployable, no crane required
- 360° Omnidirectional Control – 360° roll, pitch, and yaw with ±0.1° angle control
- Dedicated Flight Case with Wheels – For ROV, spool, and accessories
Application Scenarios
- Offshore Oil & Gas – Platform structure inspection, pipeline integrity assessment, cathodic protection measurement
- Offshore Wind Energy – Turbine foundation and subsea cable inspection with NDT tooling
- Large Shipping Vessels – Hull, propeller, and ballast tank inspection without dry-docking
- Underwater Foundations & Pipelines – Bridge scour assessment, dam inspection, and subsea infrastructure monitoring











