10 Best Waterproof Metal Detectors 2025 in the United States

The MINELAB MANTICORE Metal Detector Professional Bundle is designed to appeal to serious treasure hunters looking for a reliable and powerful waterproof option. One of its standout features is its advanced technology, which offers 50% more power than many competing models. This could significantly enhance your ability to detect targets quickly and efficiently, even in challenging environments. The simultaneous multi-frequency capability is particularly beneficial for diverse soil conditions and types of metal detection.

The PRO-FIND 40 pinpointer included in the bundle is also a strong asset. Its waterproof design and Detector Interference Free technology help in accurately locating treasures without the frustration of signal interference, which can be common in metal detecting.

When it comes to comfort and usability, the MANTICORE boasts an ergonomic design that makes it manageable to use over extended periods, although its weight could be a concern for some users who may prefer a lighter device. The 11” double D coil is well-suited for both depth and sensitivity, making it effective in various detection scenarios. Battery life is adequate but could be a limitation for those planning extended outings, requiring the user to carry extra batteries. Additionally, while the included carry bag is practical and protective, it might not be large enough for additional accessories that serious hobbyists often wish to bring along.

The MINELAB Equinox 800 is a versatile waterproof metal detector designed for both beginners and experienced treasure hunters. One of its standout features is the simultaneous multi-frequency technology, which allows it to detect various types of metals effectively, making it suitable for different environments, whether on land or underwater. With a depth rating of up to 10 feet, this detector is perfect for beachcombing or exploring rivers and lakes.

The device offers four detect modes tailored for specific needs—Park, Field, Beach, and Gold modes. This provides users with flexibility depending on where they are searching. The accurate target ID system helps distinguish between valuable items and trash, enhancing the user's efficiency during searches. Plus, the inclusion of wireless headphones adds to the convenience, allowing for high-speed audio feedback.

In terms of ergonomics, the Equinox 800 is lightweight, making it easy to use for extended periods without discomfort. Its adjustable length can accommodate users of different heights, which is a thoughtful design element. The battery life, estimated at around 12 hours, is decent, though some users may prefer longer sessions without the need for frequent recharging.

On the downside, the price point may be higher than entry-level models, which might deter newcomers. Additionally, while the device is user-friendly, those new to metal detecting may need to spend some time familiarizing themselves with its features and settings to maximize its potential. The product’s weight, though manageable, is slightly on the heavier side compared to comparable models, which could be a consideration for those who prefer a lighter option.

The MINELAB Equinox 800 stands out for its advanced features and waterproof capabilities, making it a strong choice for enthusiasts who want reliability and performance in various detecting scenarios.

The Garrett ACE 300 Metal Detector features a waterproof search coil that allows you to use it in shallow waters, making it versatile for beach and river hunts. The detector includes useful accessories like volume control headphones, an environmental cover, and a search coil cover, which enhance its usability and protection during use.

Its adjustable length and relatively light weight (5.13 pounds) add to its ergonomic design, making it comfortable for prolonged use. The 7" x 10" search coil size allows for a good balance between depth and coverage area, suited for various terrains. The device is powered by 4 AAA batteries, providing a decent battery life of approximately 25 hours, which is convenient for extended outings.

The ACE 300 also features an IP54 rating, offering limited protection against dust and splashes, though it is not fully waterproof beyond the search coil. One drawback is that it does not include ground balance settings, which might affect performance in highly mineralized soils. Sensitivity and discrimination settings are available, helping to filter out unwanted metals and improve detection efficiency. The LCD display is user-friendly, and with 8 detection programs, it caters to both beginners and more experienced users. However, the lack of a fully waterproof design limits its use in deeper waters. The Garrett ACE 300 is a solid choice for hobbyists who need reliable performance on land and in shallow water.