The Garmin Descent G1 Slate Grey is an advanced dive watch designed for serious divers and outdoor enthusiasts who demand precision, durability, and versatility. With its rugged construction and cutting-edge technology, this watch is engineered to deliver comprehensive dive and fitness tracking. Ideal for both recreational and professional use, the Descent G1 combines robust functionality with an intuitive interface to enhance every dive experience.

This model features a fiber-reinforced polymer bezel and case, ensuring durability and resistance to harsh underwater conditions. The monochrome, sunlight-visible MIP display is both practical and easy to read, even in bright sunlight. Its sapphire crystal lens provides superior scratch resistance, enhancing the watch's longevity. Equipped with a variety of advanced features, it supports multiple dive modes, including air, nitrox, trimix, and closed circuit rebreather. Customizable dive data screens and a comprehensive decompression model ensure detailed and accurate diving information.

Key Features:

• Battery Life: Dive Mode: Up to 25 hours // Smartwatch Mode: Up to 21 days // Battery Saver Watch Mode: Up to 48 days // GPS Mode: Up to 26 hours // Max Battery GPS Mode: Up to 56 hours // Expedition GPS Activity Mode: Up to 27 days.
• Bezel and Case Material: Fiber-reinforced polymer for durability.
• Display: 0.9" x 0.9" custom, two-window design with a resolution of 176 x 176 pixels, featuring a monochrome, sunlight-visible, transflective memory-in-pixel (MIP) display.
• Lens Material: Sapphire crystal.
• Memory/History: 32 MB.
• Physical Dimensions: 45.5 x 45.5 x 15.2 mm. Silicone Band: 128-224 mm. Extra Long Silicone Band: 128-373 mm.
• Water Rating: Dive (100 meters).
• Weight: 61 g.
• Diving Features: Includes a 3-axis dive compass, audible and vibration alarms, APNEA hunt mode, auto start/end dive, customizable conservatism, multi-gas support, and a range of dive planning and safety features.
• Clock Features: Alarm clock, automatic daylight saving time, GPS time sync, and various timing functions.
• Health Monitoring: Includes heart rate alerts, stress tracking, hydration monitoring, sleep tracking, and Pulse Ox blood oxygen saturation.
• Sensors: Features include accelerometer, barometric altimeter, compass, depth sensor, GPS, GLONASS, and more.
• Boating Features: Built-in barometer and tide tables.
• Daily Smart Features: Connectivity with Garmin Connect™, smart notifications, music storage, and various compatibility features.
• Safety and Tracking: Includes assistance, incident detection, and LiveTrack.
• Activity Tracking: Body Battery™ energy monitor, calorie tracking, distance traveled, and more.
• Fitness Equipment/Gym: Automatic rep counting, cardio and strength workouts, and other gym features.
• Heart Rate Features: Includes HR alerts, HR broadcast, and training effect labels.
• Training, Planning, and Analysis: Advanced workouts, audio prompts, configurable alerts, and more.
• Running Features: Supports multiple run profiles, cadence tracking, and performance metrics.
• Golfing Features: Includes auto course view updates, digital scorecard, and hazards/course targets.
• Outdoor Recreation Features: Provides area calculation, back-to-start, barometric trend indicator, and various navigation tools.
• Cycling Features: Alerts, bike lap power, compatibility with power meters, and various cycling profiles.
• Swimming Features: Includes auto rest timer, stroke type detection, and open-water swim metrics.
• Kid Activity Tracking: Toe-to-Toe™ Challenges via optional app.
• Connectivity: Smart trainer control and extensive compatibility features.

Full Specifications:

GENERAL

• Battery Life:
  • Dive Mode: Up to 25 hours
  • Smartwatch Mode: Up to 21 days
  • Battery Saver Watch Mode: Up to 48 days
  • GPS Mode: Up to 26 hours
  • Max Battery GPS Mode: Up to 56 hours
  • Expedition GPS Activity Mode: Up to 27 days
• Bezel Material: Fiber-reinforced polymer
• Case Material: Fiber-reinforced polymer
• Display Resolution: 176 x 176 pixels
• Display Size: Custom, two-window design: 0.9" x 0.9" (23 x 23 mm)
• Display Type: Monochrome, sunlight-visible, transflective memory-in-pixel (MIP)
• Lens Material: Sapphire crystal
• Memory/History: 32 MB
• Physical Size: 45.5 x 45.5 x 15.2 mm
  • Silicone Band: 128-224 mm
  • Extra Long Silicone Band: 128-373 mm
• QuickFit™ Watch Band Compatible: Yes (22 mm)
• Strap Material: Silicone
• Water Rating: Dive (100 meters)
• Weight: 61 g

DIVING FEATURES

• 3-Axis Dive Compass: Yes (with adjustable heading, quick change to 90R, 90L, and reciprocal; indicates degrees and direction back to set heading)
• Alerts & Alarms: Audible and vibration alarms for ascent rate, PO2, CNS/OTU, NDL, deco, gas switching; customizable (up to 40) audible and/or vibration per dive mode, based on depth or time
• APNEA Hunt Mode: Yes
• APNEA Mode: Yes
• Auto Start/End Dive: Yes
• Automatic Altitude Adjustment: Yes
• Automatically Saves Dive Entry and Exit Locations: Yes
• Backlight: Yes (configurable time and intensity; auto-on at depth)
• Closed Circuit Rebreather (CCR): Yes
• Custom Dive Data Screens: Yes
• Custom End-Dive Timeout: Yes (20 s to 10 m)
• Customizable Conservatism: Yes (low/medium/high or custom using gradient factors)
• Decompression Model: Bühlmann ZHL-16c with gradient factors
• Deep Stops: Yes (using custom gradient factors)
• Dive Ascent/Descent Rate Indicator: Yes
• Dive Planner: Yes (basic NDL + multi-gas deco planner)
• Gas Mixes: Air, Nitrox, and Trimix up to 100% O2; 1 bottom gas and up to 11 deco and/or backup gases
• Missed Deco Lockout: Yes (can be disabled prior to dive with user acknowledgment)
• Multi-Gas Mode: Yes
• Nitrox Support: Yes
• No Fly Time: Yes
• PO2: Up to 2.0 with customizable deco PO2 setting
• Residual Tissue Loading Reset: Yes (on the surface with user acknowledgment)
• Safety Stop: Yes (customizable off/3min/5min)
• Single-Gas Mode: Yes
• Surface Diver Status Widget: Yes (surface interval, N2/HE loading, CNS, OTU, and tissue compartment status)
• Sync Dive Log to Garmin Dive™ Mobile App: Yes
• Tides: Yes
• Trimix Support: Yes

CLOCK FEATURES

• Alarm Clock: Yes
• Automatic Daylight Saving Time: Yes
• GPS Time Sync: Yes
• Stopwatch: Yes
• Sunrise/Sunset Times: Yes
• Time/Date: Yes
• Timer: Yes

HEALTH MONITORING

• Abnormal Heart Rate Alerts: Yes (high and low)
• All-Day Stress Tracking: Yes
• Daily Resting Heart Rate: Yes
• Fitness Age: Yes
• Health Snapshot: Yes
• Hydration: Yes (in Garmin Connect™)
• Pulse Ox Blood Oxygen Saturation: Yes (spot-check, during sleep, all day)
• Relaxation Breathing Timer: Yes
• Respiration Rate (24x7): Yes
• Sleep: Yes
• Sleep Score and Insights: Yes
• Women's Health: Yes (in Garmin Connect™)
• Wrist-Based Heart Rate (Constant, every second): Yes

SENSORS

• Accelerometer: Yes
• Barometric Altimeter: Yes
• Compass: Yes
• Depth Sensor: Yes
• Galileo: Yes
• Garmin Elevate™ Wrist Heart Rate Monitor: Yes
• GLONASS: Yes
• GPS: Yes
• Gyroscope: Yes
• Pulse Ox Blood Oxygen Saturation Monitor: Yes
• Thermometer: Yes

BOATING FEATURES

• Autopilot Control: No
• Available Boating Profiles: Boating
• Boat Data Streaming: No
• Built-in Barometer and Tide Tables: Yes

DAILY SMART FEATURES

• Battery Saver - Customizable Low Power Watch: Yes
• Calendar: Yes
• Compatible with Garmin Connect™ Mobile: Yes
• Connect IQ™: Yes (Downloadable Watch Faces, Data Fields, Widgets, and Apps)
• Connectivity: Bluetooth®, ANT+®
• Controls Smartphone Music: Yes
• Find My Phone Feature: Yes
• Find My Watch Feature: Yes
• Garmin Pay™: Yes
• Music Storage: Yes
• Pairs with Garmin Golf App: Yes
• Smart Notifications: Yes
• Smartphone Compatibility: iPhone®, Android™
• Text Response/Reject Phone Call with Text (Android™ Only): Yes
• VIRB® Camera Remote: Yes
• Weather: Yes

SAFETY AND TRACKING FEATURES

• Assistance: Yes
• Incident Detection During Select Activities: Yes
• LiveTrack: Yes

TACTICAL FEATURES

• Dual Grid Coordinates: Yes

ACTIVITY TRACKING FEATURES

• Body Battery™ Energy Monitor: Yes
• Calories Burned: Yes
• Distance Traveled: Yes
• Floors Climbed: Yes
• Garmin Connect Challenges App: Yes (optional Connect IQ app)
• Intensity Minutes: Yes
• Move IQ™: Yes
• TrueUp™: Yes
• Step Counter: Yes
• Auto Goal: Yes (learns your activity level and assigns a daily step goal)
• Move Bar: Yes (displays on device after a period of inactivity; walk for a couple of minutes to reset it)

FITNESS EQUIPMENT/GYM

• Automatic Rep Counting: Yes
• Available Gym Activity Profiles: Strength, Cardio and Elliptical Training, HIIT, Stair Stepping, Floor Climbing, Indoor Rowing, and Yoga
• Cardio Workouts: Yes
• HIIT Workouts: Yes
• Strength Workouts: Yes

HEART RATE FEATURES

• % HR Max: Yes
• % HRR: Yes
• Auto Max HR: Yes
• HR Alerts: Yes
• HR Broadcast (Broadcasts HR Data Over ANT+™ to Paired Devices): Yes (using ANT+)
• HR Calories: Yes
• HR Zones: Yes
• Recovery Time: Yes

TRAINING, PLANNING AND ANALYSIS FEATURES

• Activity History on Watch: Yes
• Advanced Workouts: Yes
• Audio Prompts: Yes
• Auto Lap®: Yes
• Auto Multisport Activities: Yes
• Auto Pause®: Yes
• Auto Scroll: Yes
• Configurable Lap Alerts: Yes
• Course Guidance: Yes
• Customizable Activity Profiles: Yes
• Customizable Alerts: Yes
• Customizable Screen(s): Yes
• Daily Suggested Workouts: Yes
• Downloadable Training Plans: Yes
• Finish Time: Yes
• GPS Speed and Distance: Yes
• Improved Recovery Time: Yes
• Interval Training: Yes
• Manual Lap: Yes
• Multi-Sport: Yes
• Physio TrueUp: Yes
• Power Modes - Customizable In-Activity Battery Settings: Yes
• Primary Benefit (Training Effect Labels): Yes
• Race an Activity: Yes
• Respiration Rate (During Exercise): Yes
• Touch and/or Button Lock: Yes
• Training Effect (Aerobic): Yes
• Training Effect (Anaerobic): Yes
• Training Load: Yes (your total training load for the last 7 days calculated from estimated EPOC)
• Training Status: Yes (lets you see if you’re training effectively by tracking your training history and fitness level trend)
• Virtual Partner: Yes
• VO2 Max (Run): Yes
• VO2 Max (Trail Run): Yes

RUNNING FEATURES

• Available Run Profiles: Running, treadmill running, indoor track running, trail running
• Cadence (Provides Real-Time Number of Steps per Minute): Yes
• Foot Pod Capable: Yes
• GPS-Based Distance, Time and Pace: Yes

The Garmin Descent G1 Slate Grey offers a comprehensive suite of features tailored for divers and athletes. With its robust design and extensive functionality, it stands out as a reliable companion for those seeking precision and performance in their underwater and fitness adventures.