A premium 51mm watch-style dive computer and multisport GPS smartwatch with a 1.4-inch AMOLED display, sapphire lens, carbon gray DLC titanium bezel, matching DLC titanium bracelet, 200-meter dive rating, and SubWave air-integration support. Designed for divers who want advanced dive tools alongside everyday smartwatch and outdoor training features.
We may earn from qualifying purchases at no extra cost to you.
View on Amazon ↗Product details & specifications
- Size / capacity
- 51 mm
- Dimensions
- 51 × 51 × 16.4 mm (approximately 2.01 × 2.01 × 0.63 inches)
- Material
- Carbon Gray DLC-coated titanium bezel, fiber-reinforced polymer case with titanium rear cover, sapphire crystal lens, DLC titanium bracelet
- Color
- Carbon Gray DLC Titanium with DLC Titanium Band
- Weight
- Approximately 165.9 g with titanium bracelet
- Brand / model
- Garmin Descent Mk3i, 51 mm
- What's included
- Verify exact Amazon package contents. Standard watch package/accessories vary by offer; Descent T2 transceiver is not assumed included.
- Warranty
- Limited manufacturer warranty; confirm coverage and seller eligibility with Garmin and Amazon.
- Memory / RAM
- 32 GB
- Storage / device compatibility
- Compatible with Garmin Connect and Garmin Dive apps and supported iOS/Android smartphones; confirm current phone compatibility.
Features & benefits
- Dive-first construction: 200-meter dive-rated case, sapphire lens, AMOLED touchscreen, and metal leakproof inductive buttons. - Air integration: Pair with compatible Descent T2 transceivers for tank pressure monitoring and air integration. T2 transceivers are sold separately unless included in a clearly identified bundle. - SubWave sonar: Compatible Mk3i/T2 setups support preset diver-to-diver messages up to 30 meters and monitoring of up to eight divers within the specified network range. - Dive modes: Supports single- and multiple-gas diving, including nitrox and trimix, gauge, apnea, apnea hunt, and closed-circuit rebreather. - DiveView maps: Color maps provide bathymetric depth contours and more than 4,000 preloaded dive sites. - Built-in flashlight: Integrated LED flashlight with variable intensity and strobe modes on the 51mm model. - Multisport smartwatch: GPS activities, training metrics, health tracking, music, notifications, Garmin Pay, and outdoor navigation. - Battery: Garmin advertises up to 66 hours in dive mode and up to 25 days in smartwatch mode; results depend on settings and use.
What We Love
The Mk3i combines a purpose-built 200-meter dive computer with a premium multisport smartwatch. The 51mm titanium-trimmed design, sapphire lens, bright AMOLED display, built-in flashlight, dive mapping, and optional SubWave air integration make it especially capable for serious divers.
Best for
Scuba divers, technical divers, freedivers, and outdoor athletes who want advanced dive modes, surface navigation, tank monitoring compatibility, and multisport smartwatch features in one device.
Not ideal for
Casual smartwatch users, people with smaller wrists, buyers who do not dive, or anyone who wants air integration without budgeting for compatible Descent T2 transceivers.
Our take
A highly specialized premium dive computer that also works as a full-featured multisport GPS smartwatch. The 51mm case and titanium bracelet make it substantial on the wrist. Its key air-integration and SubWave capabilities require compatible Descent T2 transceivers, which are sold separately unless explicitly included in a bundle. Confirm the exact 010-02752-13 titanium-band configuration, seller, warranty, and package contents before ordering.
Things to consider
- Premium price, especially for the titanium bracelet configuration.
- Descent T2 transceivers for air integration and SubWave networking are sold separately unless the selected offer is a bundle.
- The 51mm case and titanium bracelet are relatively large and heavy.
- Advanced dive and training features have a learning curve.
- Battery life varies with display settings, GPS, sensors, and connected accessories.