10 Best Scuba Diving Computers 2025 in the United States

The Shearwater Perdix 2 Ti Dive Computer is a robust choice for scuba divers seeking reliability and advanced features. Its 2.2-inch backlit color LCD screen ensures excellent visibility underwater, which is crucial for reading important dive information. The customizable vibration alert system is a thoughtful addition, helping divers stay aware of critical notifications even in challenging conditions.

Another standout feature is its air integration capability, supporting up to four Shearwater transmitters. This allows divers to monitor their tank pressure easily and enhances safety during dives. The device is powered by a single AA battery that users can change themselves, a practical feature for those who dive frequently and want to avoid the hassle of sending their computer back to the manufacturer for battery replacements.

It's also relatively lightweight at 190 grams, making it easy to wear throughout extended dives. It might be on the pricier side and may not be suitable for beginner divers who don't need all the advanced features. If you're an experienced diver looking for a durable and feature-rich dive computer, the Shearwater Perdix 2 Ti is a solid investment.

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 Research Teric Wrist Computer with Transmitter is a high-end dive computer that offers a blend of advanced features and a user-friendly interface. One of its standout strengths is the inclusion of the Bühlmann ZHL-16c algorithm, which is well-regarded in the diving community for its reliability and safety, and the configurable Gradient Factors allow for customization based on personal preferences or dive conditions. The device supports multiple modes including Open-Circuit, Fixed PO2, Gauge, and Freediving, making it versatile for various diving activities.

The integrated wireless tank pressure transmitter is a significant advantage, allowing divers to monitor their air supply without needing separate gauges, enhancing safety and convenience underwater. The switchable audible and vibration alerts provide clear notifications, which is particularly useful in noisy underwater environments or when wearing thick gloves. With a screen size of 3.88 inches and a weight of 0.8 pounds, the Teric is relatively compact and comfortable to wear as a wristwatch both in and out of the water. Its construction from stainless steel and glass ensures durability and resistance to harsh marine environments.

However, the device might be considered bulky for everyday wear compared to typical wristwatches, and its high-end feature set comes at a premium price, which might not be justifiable for casual divers or beginners. The Shearwater Research Teric Wrist Computer is highly suitable for serious or professional divers who require a reliable, versatile, and robust dive computer with advanced features.