10 Best Scuba Diving Computers 2025 in the United States

The Garmin Descent™ Mk3i is a high-end scuba diving computer with a host of advanced features. Its standout feature is the bright 1.4” AMOLED display, which is both visually impressive and functional. The device is durable with a 51 mm titanium bezel and a scratch-resistant sapphire lens, making it suitable for tough underwater environments. The dive-first design ensures it is waterproof up to 200 meters, and it includes metal leakproof inductive buttons for reliable underwater operation. The multiple dive modes cater to both recreational and technical diving, including freediving, enhancing its versatility.

Air integration is a key feature here, allowing monitoring of tank pressures and depth for up to eight divers when paired with the Descent T2 transceiver (sold separately), making it great for group dives. However, the additional cost for the transceiver might be a drawback for some users. The built-in LED flashlight with variable intensities is a handy feature for low-light conditions. The device also boasts dive readiness tools and DiveView maps, aiding in planning and navigation. Its multi-band GPS and ABC sensors provide accurate positioning and navigation, though GPS tracking is not functional underwater. The ability to store and review data from up to 200 dives directly on the wrist and through the Garmin Dive app is convenient for logging and analyzing dives.

Additionally, the watch includes various sports apps and health monitoring features, making it a versatile smartwatch for everyday use as well. It connects via Bluetooth and USB, compatible with both Android and iOS. The 105.6-gram weight and round shape are ergonomic, but users seeking lighter devices might find it a bit heavy. With a considerable memory storage of 32 GB, it's well-equipped for storing dive data and apps. The battery life and capacity (150 mAh) are adequate for extended use, but users should note that heavy GPS and sensor usage might drain the battery faster. The Garmin Descent™ Mk3i is an excellent choice for serious divers who need a reliable and feature-packed dive computer that doubles as a robust multisport smartwatch.

The Shearwater Peregrine TX is a highly regarded dive computer, featuring a full color 2.2-inch LCD screen that is easy to read underwater, improving visibility and user experience. Its key strength lies in its optional wireless air integration with the Shearwater Swift Transmitter, which provides real-time gas pressure data and accurate gas time remaining calculations, crucial for safe diving. Additionally, the tilt-compensated digital compass ensures you stay on course during your dives.

The rechargeable battery offers up to 30 hours of diving per charge, and the wireless charging capability adds convenience. Bluetooth connectivity allows for seamless data tracking with the Shearwater Cloud, making it easier to log and review dive data. Weighing only 1 pound and made from durable plastic, it is lightweight and easy to handle.

However, some divers might find the single size option limiting, and the relatively higher price point could be a consideration for budget-conscious buyers.

The Garmin Descent Mk2i/Descent T1 Bundle is a feature-rich, watch-style dive computer designed for scuba diving enthusiasts. Its 1.4-inch color sunlight-readable display is larger than previous models, enhancing visibility underwater. The device is elegantly designed yet rugged, suitable for various environments. Battery life is impressive, offering up to 32 hours in dive mode with the T1 transmitter enabled, and up to 16 days in smartwatch mode, which is convenient for extended use without frequent charging.

The air integration feature, which pairs with the Descent T1 transmitter, allows monitoring up to 5 tanks and provides critical data like remaining air time and air consumption rate, beneficial for both solo and group diving adventures within a range of 10 meters. The dive computer also includes an advanced wrist-based heart rate sensor and Pulse Ox for blood oxygen monitoring, useful for sleep monitoring and altitude acclimation, though not intended for medical diagnoses. Versatility is a strong point, as the device supports multiple sports apps, training features, contactless payments, music storage, and streaming service support, making it suitable for multisport training.

Connectivity options include Bluetooth Smart, ANT+, Wi-Fi, and SubWave, enhancing data sharing and device synchronization. The user interface is designed to be intuitive, allowing easy access to dive logs and modes, with a capacity to store and review data from up to 200 dives. The product is compact and lightweight, weighing 1.4 pounds and measuring 2.05 x 2.05 x 0.7 inches. However, GPS tracking does not work underwater, which might limit some navigational features during dives. This dive computer is best suited for avid divers seeking comprehensive data and multifunctionality in a stylish, durable package.