February 9, 2026

Whether you’re new to diving or have earned the title of dive master, finding a dive computer that’s jam-packed with data for your aquatic adventure is nonnegotiable.

Unlike physical dive tables and gauges, a Garmin dive computer helps divers create optimized dive plans that extend time underwater and provide increased awareness for deeper exploration by logging depth, dive time, decompression status and more.   

It’s hard to know where to start when there are multiple options to choose from. To make your decision a little easier, we’ve described our watch-style and large-format dive computers so you can find a device that best suits your needs. 

Why a Garmin dive computer?

Garmin dive computers share lots of similarities that make any computer you choose an excellent choice.

Every dive computer has a built-in 3-axis digital compass for better navigation. Plus, select Garmin dive computers come with built-in NDL Aware depth metrics such as real-time data on your no-decompression limit (NDL). Insight into your depth data helps you to understand how changes in depth affect your plan to get to the surface.

When on the surface, you can communicate with other topside members by pairing your watch with a Garmin inReach® device¹ protected by a dive case. If an incident has occurred, you’ll be able to trigger an SOS message to Garmin Response℠, our 24/7-staffed international coordination center.

See where you began and ended your dive when you mark surface entry and exit points. After your dive, store dive logs on your device and review them on the Garmin Dive™ app on your smartphone.

Here’s a breakdown of offerings from every Garmin dive computer.

Watch-style dive computers

Watch-style dive computers are built for more than just underwater activities. The Garmin lineup includes the Descent™ G2 designed for both recreational and experienced divers, and the Descent Mk3i offers premium features for advanced technical divers. Both options have built-in activity tracking and sports apps as well as health and wellness features, including daily movements and lifestyle logging in the Garmin Connect™ app. So how do they differ? Let’s dive in.

Descent™ Mk3: The compact Descent Mk3 is ideal for advanced divers who want ultimate dive features but still value surface features. Made with a premium sapphire lens and the choice of stainless steel or titainum bezels, the Descent Mk3 supports up to 30 hours of battery life in dive mode and has a 200-meter dive rating.

The dedicated dive features include preloaded single- and multi-gas dive modes (such as gauge, apnea, apnea hunt and closed-circuit rebreather), dive readiness data so you know when you’re most prepared to go underwater and DiveView™ mapping with up to 4,000 dive sites.

For increased connectivity down under, upgrade to an Mk3i air-integrated dive computer and pair it with our Descent T2 transceivers to monitor up to eight tank pressures with built-in SubWave™ sonar networking. Plus, monitor depth data and exchange diver-to-diver messaging up to 30 meters. When connected with the Garmin Descent S1 buoy, message divers and crew members topside when you’re within 100 meters. You can also send satellite messages through any paired inReach device, protected by a dive case, when on the surface. For support above and below the water, the 51mm Mk3i watch comes with a built-in flashlight.

Descent G2: With surface and dive features, the rugged Descent G2 is perfect for first-time or recreational divers. This dive computer has up to 10 days of battery life, with a bright, 1.2-inch AMOLED display that’s easy to read under water and can be used as a touchscreen when above the water. Eco-friendly, the G2’s bezel and case are made with recycled ocean-bound plastics. For utmost durability, the G2 also has a sapphire lens.

Withstanding up to 100 meters, Descent G2 tracks and supports various dive modes, including recreational, technical, freediving — including pool apnea.

Large-format dive computers

The Garmin lineup of touchscreen dive computers includes Descent X30 and Descent X50i. Both are perfect for dedicated divers who want access to multiple dive-specific metrics on a larger screen for better visibility. To understand how your dive journey affects your decompression plan, see depth history as you dive on either computer. Though both share commonalities, here are some key differences:

Descent X50i: For advanced rec or technical divers who favor a bigger, premium, data-packed touchscreen dive computer, take a look at the Descent X50i. Depth info, dive time, ascent/descent rates, and decompression status are just a few of the many data fields you’ll have access to.

With a vibrant 3-inch color display, you’ll be able to see comprehensive dive data with ease. Explore up to 200…