What This Product Is Used For
The ThorRobotics King Crab 100X is a heavy duty underwater ROV designed for exploration, inspection, fishing support, and object retrieval. Compared with simple underwater cameras or recreational drones, it combines long range control, stable movement, and a functional manipulator arm for real interaction. It is used for underwater filming, fishing observation, bait placement, debris recovery, inspection tasks, and exploration from boats or shore where live control and physical interaction are required.
Who This Product Is Best Suited To
This product is best suited to advanced hobbyists, anglers, researchers, and operators who need more than visual observation alone. It fits users who want long control range, reliable live viewing, and the ability to grab or retrieve objects underwater. It is ideal for those working from boats, docks, or shore who require dependable performance and practical tooling.
Pros and Cons
Pros
Manipulator arm allows real underwater interaction and object retrieval.
Long control range supports wide area exploration from a single deployment point.
Live 4K recording with real time viewing improves confidence and decision making.
Cons
Larger and more complex than basic recreational underwater drones.
Advanced capability may be unnecessary for casual shallow water use.
Real World Performance and Day to Day Use
In real world use, the King Crab 100X feels robust and purposeful underwater. The four vector thrusters provide stable movement and controlled positioning, while the LED spotlights illuminate targets clearly in darker environments. Live video can be viewed in real time at 1080p while recording in 4K, allowing smooth operation without lag. The manipulator arm is effective for picking up debris, bottles, or other objects without disturbing the surrounding area too much, making it useful for both exploration and light recovery tasks.
Why We Like This Product
From the YPC Team perspective, the standout feature is its combination of range and interaction. A common buyer mistake is choosing an underwater drone with good visuals but no way to interact with the environment. This model avoids that by pairing a long control range with a capable manipulator arm, making it genuinely useful rather than just observational.
Comparisons With Similar Systems
Compared with viewing only underwater drones, this model makes more sense when retrieval or bait placement is required.
Against compact recreational drones, it offers greater range and capability, while smaller drones prioritise portability.
Compared with industrial inspection ROVs, it is more accessible while still offering practical tooling.
Alternatives Worth Considering
If you only need underwater footage without interaction, a camera focused underwater drone may be sufficient. If you require deeper than 100 metres or continuous industrial inspection, a larger professional ROV platform would be more appropriate.
Tips for Getting the Best Performance
Allow the ROV to stabilise before using the manipulator arm.
Use slow controlled movements when approaching objects to maintain visibility.
Manage tether and control range carefully to maintain smooth operation.
Full Technical Specification
Underwater remotely operated vehicle
Maximum operating depth up to approximately 100 metres
Maximum control range up to approximately 300 metres
Integrated 4K UHD underwater camera
4K UHD video recording
1080p real time live viewing and streaming
Manipulator arm for object retrieval and interaction
Fish finder and bait drop line support
Four vector thruster propulsion system
Two high lumen LED spotlights
Designed for operation from boats or shore
Supports underwater filming exploration fishing and inspection tasks
Buyer’s Guide
Buy this if you want a long range underwater drone with live 4K recording and a manipulator arm for exploration fishing and retrieval.
Do not buy this if you only need simple shallow water viewing without interaction features.
Frequently Asked Questions
How deep can the King Crab 100X operate?
It is designed to operate at depths of up to approximately 100 metres.
Does it record and stream video at the same time?
Yes, it records in 4K while providing 1080p real time viewing.
Can it pick up objects underwater?
Yes, the built in manipulator arm can retrieve items such as bottles or debris.
What is the maximum control range?
The control range can reach up to approximately 300 metres.
Is it suitable for fishing use?
Yes, it supports fish finding and bait drop line applications.
Does it include lighting for dark water?
Yes, it is equipped with two high lumen LED spotlights.
Can it be used from a boat?
Yes, it is designed for operation from boats or shore.
Is this a recreational toy?
No, it is designed for serious exploration and practical underwater tasks.
Is it difficult to control?
It is designed for controlled operation, though some familiarisation is recommended.
Can it be used for debris recovery?
Yes, the manipulator arm makes it suitable for light recovery and clean up tasks.
Looking for more options?
Browse our full range of Underwater Drones for other great choices to suit your space, goals, and budget.













