10 Best Dive Computers 2025 in the United States

The Shearwater Research Peregrine Dive Computer is a modern, user-friendly device designed for adult divers. Its 2.2-inch rectangular display is clear and easy to read, with a state-aware menu structure that simplifies navigation using two stainless steel buttons.

This dive computer does not support air integration, which might be a drawback for more advanced divers looking for integrated gas management features. However, it offers reliable diving algorithms and includes intuitive DECOn and NDL planners, which are helpful for dive planning and safety.

The lithium-ion battery provides up to 30 hours of use per charge on medium brightness, and the included USB wireless charging station adds convenience. Weighing only 122 grams and with compact dimensions, it is lightweight and portable. Connectivity is robust with Bluetooth and USB options, allowing easy data transfer and updates. Although it lacks GPS functionality, the Peregrine's focus on fundamental dive computer features makes it a strong contender in the digital diving gauge category.

The Garmin Descent Mk3i is a high-end, versatile dive computer that doubles as a multisport GPS smartwatch. Its standout feature is a vibrant 1.4-inch AMOLED display, ensuring readability even in challenging underwater conditions. The device also boasts a robust build with a scratch-resistant sapphire lens and a titanium bezel, which adds to its durability and aesthetic appeal. With its comprehensive dive modes and 200-meter water resistance, it is suitable for both recreational and technical divers, including freedivers.

The air integration capability, when paired with the Descent T2 transceiver (sold separately), allows for monitoring tank pressures and exchanging messages between divers, enhancing safety and communication underwater. The built-in LED flashlight with variable intensities is particularly useful in low-light environments, providing both red and white light options. Additionally, the dive readiness tool is a thoughtful feature, offering insights into how lifestyle factors may impact diving performance. The inclusion of DiveView maps and multi-band GPS technology further enriches the diving experience by offering detailed dive site maps and precise navigation.

For fitness enthusiasts, the device supports various sports apps and provides extensive health monitoring, including heart rate and sleep tracking. On the downside, the device is relatively heavy at 105.6 grams, which might be noticeable on the wrist during extended use. Furthermore, certain advanced features require additional purchases, such as the Descent T2 transceiver for full air integration functionality. Connectivity options include Bluetooth and USB, ensuring compatibility with both Android and iOS devices. The battery life is powered by a lithium polymer battery, though the 150mAh capacity may require frequent charging, especially with intensive use. Despite these minor drawbacks, the Garmin Descent Mk3i offers a comprehensive package for divers seeking a reliable and feature-rich dive computer that also supports an active lifestyle.

The Shearwater Peregrine TX is a well-designed air-integrated dive computer that features a bright, full-color 2.2-inch LCD screen, making it easy to read underwater. It supports wireless air integration with the Shearwater Swift Transmitter, providing real-time gas pressure and accurate remaining dive time — a useful feature for safety-conscious divers. The inclusion of a tilt-compensated digital compass helps with underwater navigation without confusion.

Weighing just 125 grams, it is lightweight and compact, ensuring it won't feel bulky on your wrist. The battery life is solid, offering up to 30 hours of diving on a single wireless recharge, which is convenient and reduces downtime. Bluetooth connectivity to Shearwater Cloud allows divers to track and review their dives easily.

While the dive computer uses plastic for its casing, which might feel less durable compared to metal-bodied models, it offers strong core features. Some advanced technical divers might find it lacks the depth of customization or multi-gas support available in higher-end models. This dive computer is an excellent choice for recreational divers who want reliable air integration, a clear display, and easy access to dive data without complexity.