Garmin - Descent Mk3i 51mm Watch Style-Dive Computer (Carbon Gray/Black) with Descent T2 Transceiver - Black - (2025)

Garmin Descent Mk3i Watch Style-Dive Computer (51mm, Carbon Gray with DLC Titanium Band) The Garmin Descent Mk3i Dive Computer combines advanced dive technology with multisport smartwatch features. With air integration via the SubWave sonar network (compatible with up to 8 Descent T2 transceivers, sold separately), it tracks tank pressure, depth, and diver data.

As the first smartwatch to feature a MicroLED display, the fēnix 8 Pro multisport GPS watch looks and performs like no other. Its innovative, high-resolution 1.4" MicroLED touchscreen offers remarkable brightness and detail — up to 4,500 nits with over 400,000 individual LEDs — producing rich colors, wide viewing angles and superior readability, even in direct sunlight. Built for active lifestyles and activities that make it impractical to carry a phone, fēnix 8 Pro includes built-in inReach technology for satellite and LTE connectivity (active subscription required; coverage limitations may apply; some jurisdictions regulate or prohibit the use of satellite communication devices). Leave your phone behind, and access voice calls and LiveTrack location sharing when you’re connected to an LTE network. Or utilize two-way messaging and interactive SOS messaging capability during an outdoor adventure from either an LTE or satellite link — with emergency SOS support from the 24/7-staffed Garmin Response coordination center. Premium touches include a titanium bezel, scratch-resistant sapphire lens and powerful built-in LED flashlight. It also has up to 10 days of battery life in smartwatch mode, a 40-meter dive rating, music storage and more.

Discover a deeper connection with the Descent Mk3i watch-style dive computer. It features multiple dive modes plus SubWave sonar technology for diver-to-diver communication via preset messages (available with software v.15.70 or later). The device also supports monitoring of tank pressures and depth for up to eight networked divers, when paired with the Descent T2 transceiver (sold separately). A built-in LED flashlight keeps you going in low-light conditions, above or below water. Purpose-built specifically for divers, the Descent Mk3i dive computer combines a bright 1.4” AMOLED display with scratch-resistant sapphire lens, 200-meter dive-rated case and metal leakproof inductive buttons. DiveView maps offer bathymetric depth contours and more than 4,000 dive sites to help you find where to dive and get oriented. Plus, a dive readiness tool, developed by Garmin, shows how lifestyle factors such as sleep, exercise, stress and jet lag can affect your body’s overall preparedness for diving — so, ultimately, you can make better-informed dive plan decisions (data presented is intended to be a close estimation of metrics tracked). This dive computer is designed to help maximize your preparation for the physical and mental challenges of diving. When you’re ashore, built-in sports apps help you stay on top of your fitness, while Garmin Pay contactless payments, music storage and smart notifications keep you connected (compatible smartphone required).