Garmin Descent Mk2i GPS Dive Computer
General Lens Material sapphire crystal Bezel Material Diamond-like Carbon (DLC) coated titanium Case material fiber-reinforced polymer with metal rear cover QuickFit™ watch band compatible yes (26 mm) Strap material silicone or titanium Physical size 52 x 52 x 17.8 mm Fits wrists with the following circumference: Silicone band: 135-230 mm Extra long silicone band: 135-355 mm Titanium bracelet: 135-220 mm Color display Display Size 1.4” (35.56 mm) diameter Display resolution 280 x 280 pixels Display Type sunlight-visible, transflective memory-in-pixel (MIP) Weight silicone band: 99.6 g titanium band: 160.3 g Water rating Dive (100 meters) Battery life Smartwatch: Up to 16 days Battery Saver Watch Mode: Up to 50 days GPS: Up to 48 hours GPS + Music: Up to 15 hours Max Battery GPS Mode: Up to 96 hours Dive mode: Up to 80 hours Dive mode with Descent T1: Up to 32 hours Expedition GPS Activity: up to 35 days Memory/History 32 GB Clock Features Time/date GPS Time Sync Automatic daylight saving time Alarm clock Timer Stopwatch Sunrise/sunset times Health Monitoring Wrist-based heart rate (constant, every second) Daily resting heart rate Abnormal heart rate alerts yes (high and low) Respiration rate (24x7) Pulse Ox blood oxygen saturation yes (spot-check, and optional all-day acclimation and in sleep) Fitness age yes (in app) Body Battery™ energy monitor All-day stress Relaxation breathing timer Sleep Sleep score and insights Hydration yes (in Garmin Connect™) Women's health yes (in Garmin Connect™) Sensors GPS GLONASS Galileo Garmin Elevate™ wrist heart rate monitor Barometric altimeter Compass Gyroscope Accelerometer Thermometer Depth sensor Pulse Ox Blood Oxygen Saturation Monitor Daily Smart Features Connectivity Bluetooth® Smart, ANT+®, Wi-Fi®, Subwave™ Connect IQ™ (downloadable watch faces, data fields, widgets and apps) Smart Notifications Text response/reject phone call with text (Android™ only) Calendar Weather Battery saver (customizable low power watch) Controls smartphone music Plays and controls watch music Music storage up to 2,000 songs Find My Phone Find My Watch VIRB® Remote Smartphone compatibility iPhone®, Android™ Pairs with Garmin Connect™ Mobile Garmin Pay™ Safety and Tracking Features LiveTrack Group LiveTrack Live Event Sharing Incident Detection during select activities Assistance Tactical Features Stealth Mode Dual grid coordinates Kill switch Diving Features Dive activity maximum operating depth 100 meters Single-gas mode Multi-gas mode Gauge mode APNEA mode APNEA hunt mode Decompression model Bühlmann ZHL-16c with gradient factors Nitrox support Trimix support Closed Circuit Rebreather (CCR) Gas mixes Air, Nitrox and Trimix, up to 100% O2; 1 bottom gas and up to 11 deco and/or backup gasses. PO2 Up to 2.0 with customizable deco PO2 setting Subwave™ Support Air integration yes (via Subwave™) Number of transmitters supported 5 Gas time remaining Gas consumption rate Auto start/end dive Custom end-dive timeout yes (20s to 10 m) Safety Stop yes (customizable off/3min/5min) Deep Stops yes (using custom gradient factors) Customizable conservatism yes (low/medium/high or custom using gradient factors) Dive ascent/descent rate indicator Automatic altitude adjustment No fly time Dive planner yes (basic NDL + multi-gas deco planner) Tides Backlight yes (configurable time and intensity; auto-on at depth) Automatically saves dive entry and exit locations Custom dive data screens Sync dive log to Garmin Dive™ Mobile app Alerts & alarms Audible and vibration alarms for ascent rate, PO2, CNS/OTU, NDL, deco, gas switching, tank pressure, gas consumption rate. Customizable (up to 40) audible and/or vibration per dive mode, based on depth or time 3-axis dive compass yes (with adjustable heading, quick change to 90R, 90L and reciprocal). Indicates degrees and direction back to set heading Missed Deco Lockout yes (can be disabled prior to dive with user acknowledgement) Residual Tissue Loading Reset yes (on the surface with user acknowledgement) Surface diver status widget yes (surface interval, N2/HE loading, CNS, OTU and tissue compartment status) Boating Features Available Boating Profiles Boating Built-in barometer and tide tables