Descent Mk3i Dive Computer Discover a Deeper Connection with the Descent Mk3i Dive Computer Experience the advanced features of the Descent Mk3i watch-style dive computer, designed for divers seeking a deeper connection with the underwater world. Key Features: Multiple dive modes SubWave sonar technology for diver-to-diver communication via preset messages (requires software v.15.70 or later) Supports monitoring of tank pressures and depth for up to eight networked divers when paired with the Descent T2 transceiver (sold separately) Built-in LED flashlight for low-light conditions above or below water Bright 1.4 AMOLED display with scratch-resistant sapphire lens 200-meter dive-rated case and metal leakproof inductive buttons DiveView maps with bathymetric depth contours and over 4,000 dive sites Dive readiness tool by Garmin, analyzing lifestyle factors like sleep, exercise, stress, and jet lag to inform dive plan decisions This dive computer is purpose-built to maximize preparation for the physical and mental challenges of diving. Even when ashore, built-in sports apps help you stay on top of your fitness. Garmin Pay allows for contactless payments, while music storage and smart notifications keep you connected (compatible smartphone required).