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Garmin Descent G1 Dive Computer

Garmin Descent G1 Dive Computer


Regular price £379.99
Regular price £479.99 Sale price £379.99
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  • The Garmin Descent G1 Dive Watch Computer is a fantastic smartwatch with multiple diving functions. Just like its sibling the Garmin Descent G1 SOLAR Dive Watch appeals to all active scuba divers and adventurers looking for exceptional value for money equipment with a multidisciplinary approach to fitness. From free diving to technical rebreather diving and from walking to professional fitness and health tracking - this is one amazingly versatile piece of equipment for underwater and surface sports.

    The Garmin Descent G1 Watch for Diving

    The Garmin Descent G1 dive computer is a powerful tool for any diver. It offers an abundance of surface and underwater modes every diver will find extremely useful. For underwater functions, the Garmin G1 Dive Smartwatch offers multiple and customisable dive modes such as single and multiple gas dives (air, nitrox and trimix), gauge, apnea, spearfishing and even closed-circuit rebreather and underwater 3-axis compass. On the surface, it empowers your scuba adventures by linking powerful satellite communication via an inReach2 Mini device or feeds data on ocean conditions via your smartphone. It is GPS enabled to help mark surface entry and exit points.

    The Garmin Descent G1 for Sport and Fitness

    The Garmin Descent G1 is also a powerful tool for any active sportsman and sportswomen. Super helpful sports functions include trail running, swimming, running, biking, hiking, rowing, skiing, golfing and more. It provides data on your fitness age recovery time, training status, respiration, sleeping patterns and many more. It offers an astonishing 30 built-in sports apps and advanced training features.  

    The Garmin Descent G1 Dive Watch's Design

    The Garmin G1 smartwatch dive computer is designed for intensive use in and out of the water. The casing of the Garmin G1 is made out of the impact-resistant, fibre-reinforced technical polymer, and it is dive rated to 100m and built to match military spec MIL-STD-810. The screen is made of impact and scratch-resistant sapphire lens sheltering high contrast easy-to-read monochrome display. You can enjoy extended battery times with up to 25 hours in dive mode, 21 days in smartwatch mode and 26 hours in GPS mode.

    What in the box:  Descent™ G1, Charging/data cable, Documentation.


    Lens material Sapphire crystal
    Bezel material Fibre-reinforced polymer
    Case material Fibre-reinforced polymer
    QuickFit watch band compatible Yes (22 m)
    Strap material Silicone
    Physical size 45.5 x 45.5 x 15.2 mm
    Silicone Band: 128-224 mm
    Extra Long Silicone Band: 128-373 mm
    Display Size Custom, two-window design: 0.9″ x 0.9″ (23 x 23 mm)
    Display Resolution 176 x 176 pixels
    Display Type Monochrome, sunlight-visible, transflective memory-in-pixel (MIP)
    Weight 61 g
    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
    Water rating Dive (100 meters)
    Memory/history 32 MB


    Dive activity maximum operating depth 100 meters
    Single-gas mode Yes
    Multi-gas mode Yes
    Gauge mode Yes
    APNOEA mode Yes
    APNOEA hunt mode Yes
    Decompression model Bühlmann ZHL-16c with gradient factors
    Nitrox support Yes
    Trimix support Yes
    Closed Circuit Rebreather (CCR) Yes
    Gas mixes Air, Nitrox and Trimix up to 100% O2; 1 bottom gas and up to 11 deco and/or backup gases
    PO2 Up to 2.0 with customisable deco PO2 setting
    Auto start/end dive Yes
    Custom end-dive timeout Yes (20 s to 10 m)
    Safety Stop Yes (customisable off/3min/5min)
    Deep Stops Yes (using custom gradient factors)
    Customisable conservatism Yes (low/medium/high or custom using gradient factors)
    Dive ascent/descent rate indicator Yes
    Automatic altitude adjustment Yes
    No-fly time Yes
    Dive planner Yes (basic NDL + multi-gas deco planner)
    Tides Yes
    Backlight Yes (configurable time and intensity; auto-on at depth)
    Automatically saves dive entry and exit locations Yes
    Custom dive data screens Yes
    Sync dive log to Garmin Dive™ Mobile app Yes
    Alerts & alarms Audible and vibration alarms for ascent rate, PO2, CNS/OTU, NDL, deco, gas switching. Customisable (up to 40) audible and/or vibration per dive mode, based on depth or time
    3-axis dive compass Yes (with an adjustable heading, a 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)


    • Clock features: Time and Date, GPS Time Sync, Automatic Daylight Saving Time, Alarm Clock, Timer, Stopwatch, Sunset and Sunrise Times
    • Health Monitoring: Wrist-based heart rate, Daily Resting Heart Rate, Abnormal Heart Rate Alerts; Respiration rate, Pulse Ox Blood Oxygen Saturation, Fitness age, Body Battery™ Energy Monitor, All-day stress tracking, relaxation breathing timer, Sleep, Sleep score and insights, Women's Health, Hydration Tracking
    • Sensors: GPS, GLONASS, GALILEO, Garmin Elevate, Barometric Altimeter, Compass, Gyroscope, Accelerometer, Thermometer, Depth sensor, Pulse Ox Blood Oxygen Saturation Monitor
    • Smart Features: Connect IQ, Smart Notifications, Calendar, Weather, Battery Saver, Smartphone Music Control, Music Storage, Find my Phone, Find my Watch, VIRB Camera Remote, Smartphone Compatibility,
    • Pairing Features: Garmin Golf, Garmin Connect Compatible, Garmin Pay Compatible
    • Safety Tracking Features: Live Track, Group Tracking, Dual Grid Coordinates for TACTICAL Usage
    • Activity Tracking Features: Step Counter, MOve Bar, Auto Goal, Calories Burned, Floors Climbed, Distance Travelled, Intensity Minutes, TrueUp, Move IQ, Garmin
    • Training and Planning Features: HR Zones, HR Alerts, HR Calories, HR Max, HRR, Recovery Time, Auto Max, NRV Stress Test, HR Broadcast, GPS Speed and Distance, Customisable Screen, Customisable Profiles, Auto Pause, Interval Training, Advanced Workout
    • Other Features includes: Fitness Gym, Training and Planning and Analysis, Running Features, Golfing Features, Outdoor Recreations, Cycling Features, Swimming Features,
    • Compatible with Applications: Garmin Connect Mobile, Garmin Golf, Garmin Explore, Garmin Connect, Heart Rate Monitors, Bicycle Accessories
    • Compatible Devices: Alpha 200i K, Atemos, GPSMAP 66i, InReach Mini, Montana 700, Montana 750i, Cycling Rally XC100, Cycling Rally XC200 pedals, VIRB 360 Camera, VIRN Ultra30.
    SKU: 010-02604-10
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  • Delivery Information

    We offer free tracked UK standard delivery on orders over £50. 

    Standard UK delivery and Next Business Day UK delivery rates are calculated at checkout and offers a number of courier options for maximum convenience to you.

    International shipping rates depend on items, shipment weight and destination. Shipping costs are calculated at checkout.

    Estimated delivery times are shown during checkout and reflect your chosen delivery method.

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    Returns Information

    If you change your mind, it doesn’t fit, or you become inflicted with buyer’s regret - that's OK!

    Mike's Dive Store offer an extended returns policy of 60 days - so you can be rest assured if the suit, piece of diving equipment or gift doesn't suit then just send it back, and we will either exchange it or offer a full refund less any postage costs. Too easy!

    Please note that there are some special order items on our website that will be subject to a 20% re-stocking fee, but we will let you know about these items before we 'special order' them so that you are aware of this. If this is the case we can always help with correct sizing so that we minimise the risk of return.

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