10 Best Underwater Metal Detector 2025 in the United States

The DR.ÖTEK Metal Detector for Adults is geared towards both professional and hobbyist metal detecting enthusiasts. One of its strengths is its versatility with five upgraded modes, including a unique Memory Mode that helps you focus on detecting a specific metal type. This can save considerable time during searches. The large LCD display with backlight is easy to read and customizable, adding to its user-friendliness in various lighting conditions.

The 9.8-inch waterproof coil is a standout feature, allowing searches up to 10 inches deep and performing well in shallow water, making it suitable for beach outings or riverside adventures. The adjustable stem and 5-level sensitivity settings enhance comfort and effectiveness for users of different heights and experience levels. The device is lightweight at 2.2 pounds, promoting ease of use over extended periods without causing fatigue.

Accessories like a premium headset, digger shovel, and carrying bag add value and convenience, making this a thoughtful gift option. It's worth noting the operating frequency of 7 KHz, which is suitable for general metal detection but may not be as effective for detecting fine gold in mineral-rich soils. Additionally, the reliance on a 9V battery may require frequent replacements, depending on usage levels. Despite these minor drawbacks, the DR.ÖTEK Metal Detector offers a robust combination of features, especially for those looking to balance performance with ease of use.

The GreenRex Metal Detector is designed for adult users who are serious about metal detecting, featuring five professional detection modes that help in precisely identifying various types of metals including coins, relics, jewelry, and gold. The device boasts an upgraded DSP chip and auto-balance technology, allowing it to detect metals up to a depth of 7 inches.

The large, backlit LCD screen is 50% bigger than standard ones, making it easy to read even in low-light conditions, and the ergonomic handle provides comfort for extended use. Additionally, its telescoping rod and quick assembly make it a convenient choice for both travel and storage. The IP68 waterproof coil is ideal for shallow water detection, though users should note that the control box is not waterproof.

It includes useful accessories like premium headphones, a foldable shovel, and a carrying bag, enhancing its value for those who frequently travel or camp. However, at 6.1 pounds, the device might feel a bit heavy for prolonged use. While the GreenRex Metal Detector is packed with features and adjustable for different users and conditions, its weight and non-waterproof control box are points to consider. This metal detector is an excellent choice for those looking for a reliable and versatile tool for underwater and beach metal detecting.

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.