10 Best Garmin Dive Watches 2026 in the United States

The Garmin fēnix 8 is a premium multisport GPS smartwatch that stands out with its bright 1.4-inch AMOLED display protected by a scratch-resistant sapphire lens, offering excellent readability even underwater or in low light. Its build quality is top-notch, featuring a durable titanium bezel and leakproof metal buttons, which contribute to its 40-meter dive rating — making it suitable for both scuba and apnea diving. Battery life is impressive, lasting up to 29 days in smartwatch mode and up to 84 hours with GPS active, which means you can rely on it for extended adventures without frequent charging. The watch includes multiple dive modes and sensors that improve navigation and tracking underwater. Comfort-wise, although it weighs a modest 102 grams and has a pebble gray band designed for wear during intense activities, some users might find the 51mm size a bit large for smaller wrists.

In terms of smart features, it offers Bluetooth, Wi-Fi, and USB connectivity, voice call capabilities, and off-grid voice commands that work without a phone connection. Health and wellness monitoring is thorough with heart rate, sleep, respiration, and even an ECG app, though this data should be seen as an estimate rather than a medical grade. It excels for multisport and outdoor use, including diving, though the relatively large size and premium price might be considerations for casual users or those seeking a more compact dive watch.

The Garmin Descent Mk3i is an advanced dive computer that doubles as a multisport GPS smartwatch. The watch boasts a 1.4-inch AMOLED display, which is clear and readable even in low-light conditions, and the sapphire lens adds durability by resisting scratches. Its titanium bezel and optional titanium bracelet enhance its build quality, making it suitable for tough underwater environments. Water resistance up to 200 meters ensures reliability during deep dives, and the multiple dive modes cater to both recreational and technical divers, including freediving. The SubWave sonar technology is a standout feature, allowing communication between divers and monitoring tank pressures, though the required Descent T2 transceiver is sold separately, which could be a drawback for some users.

The built-in LED flashlight with variable intensities offers enhanced visibility underwater, adding to safety and convenience. The dive readiness tool is useful for assessing your physical condition before diving, though it should be noted that the metrics are estimations. The DiveView maps and multi-band GPS provide excellent navigational aid, though GPS tracking does not work underwater. The dive log feature is handy for storing and reviewing dive data, with seamless integration into the Garmin Dive app. As a multisport watch, it includes fitness and training features, along with comprehensive health monitoring tools, though these are not medical-grade.

Despite the robust features, the watch weighs 165.9 grams, which might not be comfortable for all users during prolonged wear. Connectivity through Bluetooth and USB supports smart features, enhancing its functionality as an everyday smartwatch. The Garmin Descent Mk3i excels in providing advanced features for diving and multisport activities, but the weight and additional cost for full sonar functionality could be potential downsides.

The Garmin Descent Mk3i is an impressive dive watch specifically designed for both recreational and technical divers. It boasts exceptional water resistance, rated for depths of up to 200 meters, making it a solid choice for serious underwater adventures. With multiple dive modes, including options for freediving and scuba, this watch caters to a wide range of diving styles. The AMOLED display is not only vibrant but also equipped with a scratch-resistant sapphire lens, ensuring good readability both above and below water, even in low-light conditions thanks to the built-in LED flashlight.

One of its key strengths is the battery life, lasting up to 25 days in smartwatch mode, which is impressive for a device with so many features. It also offers connectivity with the Descent T2 transceiver, allowing for valuable tank pressure and depth monitoring for up to eight divers, which enhances group diving experiences.

However, there are some drawbacks to consider. The price point may be on the higher side, making it a significant investment for casual divers. While the GPS functionality is great for tracking positions on the water, it does not work underwater, limiting its navigational capabilities during dives. Additionally, though the watch is designed for smaller wrists, some users might still find it bulky or uncomfortable for all-day wear. The dive log feature allows for the storage of up to 200 dives and is easily accessible via the Garmin Dive app, which is a bonus for those who like to keep detailed records. The watch’s durability is commendable, but potential buyers should ensure that the features meet their specific diving needs. The Garmin Descent Mk3i is an excellent option for dedicated divers looking for advanced functionality and reliability in their dive watch.