10 Best Underwater Metal Detector 2026 in the United States

The MINELAB Equinox 800 is a versatile underwater metal detector that stands out with its simultaneous multi-frequency capability, allowing you to effectively search for different types of metals across varied terrains. This feature is particularly beneficial for divers and beachcombers who are looking for a reliable detector that can handle both saltwater and freshwater environments thanks to its waterproof design, submersible up to 10 feet. The 11-inch Double-D Smart Coil is a solid choice for covering a good amount of ground while still being sensitive enough for smaller finds. Its four detect modes (Park, Field, Beach, and Gold) provide tailored options for different environments and types of treasure hunting, enhancing the detector’s discrimination and sensitivity attributes. Moreover, the detector’s accurate target ID feature aids in distinguishing trash from treasure, which is crucial in mixed-terrain hunts.

On the downside, although it is lightweight at 2.96 pounds, which supports long search sessions, some users might find the need for frequent battery changes slightly inconvenient, even though it offers a decent 12-hour battery life. Additionally, the device might be complex for beginners due to its advanced features and multiple modes. Its price point might also be a consideration, as it could be seen as more suitable for serious hobbyists rather than casual users. The inclusion of wireless headphones is a nice touch, ensuring that users can comfortably focus on audio signals. If you're an enthusiast looking for a high-performing underwater metal detector, the Equinox 800 could be a compelling option given its robust feature set and durability.

The MINELAB MANTICORE Metal Detector Professional Bundle is designed for serious treasure hunters and includes everything you need for a successful hunt. The MANTICORE detector is highly powerful, boasting 50% more power than most models in its class, which allows it to find targets quickly and accurately even in tough conditions. It uses simultaneous multi-frequency technology, making it one of the most advanced detectors available. The 11-inch double D coil is a good size for covering a lot of ground while still being precise.

The waterproof feature is essential for underwater detection, and the IP rating suggests reliable protection against dust and water. The weight of 2.9 pounds and adjustable length make it user-friendly and ergonomic, allowing for extended use without discomfort. The included PRO-FIND 40 pinpointer is a standout addition, offering precise target location with minimal interference, which is especially useful underwater. The universal carry bag is practical for storage and transportation, ensuring that your gear stays in good condition.

A lithium-ion battery is included, offering a decent runtime, though you might need to monitor battery life closely during long sessions. One potential downside is the professional-grade features and price might be more than what a casual user needs. Additionally, its weight, while relatively light, could still become tiring for some users over prolonged uses. This bundle is ideal for dedicated hobbyists or professionals who need a reliable, high-performing metal detector capable of handling various environments, including underwater.

The MINELAB X-Terra PRO is a solid choice for anyone interested in underwater treasure hunting, thanks to its impressive features tailored for various detecting environments. One of its standout strengths is its full waterproof capability, allowing it to be submerged up to 16 feet, which makes it ideal for beach and underwater searches. The Pro-Switch technology enhances its depth detection abilities by allowing users to switch frequencies, making it versatile across different conditions. With three distinct detection modes—Park, Field, and Beach—it caters to specific needs, whether you’re in a trash-heavy area or searching for fine coins. The built-in flashlight and backlit keypad are great for evening hunts, adding to its usability. Lightweight at just 2.9 lbs, this detector is easy to handle for extended periods, and its compact design makes it travel-friendly.

However, there are a few considerations to keep in mind. While the sensitivity and discrimination features are generally effective, some users may find that it takes a little time to fully understand and optimize these settings for best results. The LCD display is functional, though some might prefer a more advanced display for deeper insights. Battery life is decent, but heavy users may want to carry spares due to the nature of intensive detecting sessions. Also, while it is designed for adults, beginners might find the learning curve a bit steep at first without prior experience.

The MINELAB X-Terra PRO is excellent for hobbyists and serious treasure hunters looking for a reliable underwater metal detector. Its combination of water resistance, detection modes, and user-friendly design makes it a worthy investment, despite a few learning challenges for beginners.