The Garmin Descent G2 Black with Black Band is a premium multisport smartwatch designed for adventurers who demand precision, durability, and versatility. With advanced dive modes, health tracking, GPS navigation, and tactical features, it’s built to perform above and below the surface. Designed for underwater endurance with up to 27 hours of battery in dive mode and up to 10 days smartwatch life. Sleek, rugged, and packed with smart functionality, a companion for land, sea, and beyond.
Descent G2 Black with Black Band- Description
The Descent G2 Black with Black Band combines with advance cutting age dive technology with full multisport smartwatch capabilities. Whether you're exploring deep waters, training on land, or navigating the outdoors, this device delivers unmatched performance. With customizable dive modes, real-time health metrics, GPS mapping, and tactical readiness, it's engineered for elite divers, athletes, and explorers. It features a 1.2" AMOLED display, stainless bezel, interactive sapphire lens, and a rugged fiber-reinforced polymer case made from 100% recycled ocean plastics. Water-rated to 10 ATM, it supports over six dive modes including CCR and multi-gas, along with Bühlmann ZHL-16C decompression modeling. Its sleek black design complements its rugged build, making it as stylish as it is functional.
- Advanced Dive Modes for single and multi-gas, gauge, apnea, and CCR diving
- Subwave™ Sonar Technology for diver-to-diver messaging and tank pressure monitoring
- Customizable Dive Profiles with detailed data tracking and alerts
- Surface GPS Navigation for precise entry and exit point logging
- Multi-GNSS Support including GPS, GLONASS, and Galileo
- Built-in Dive Log to store and review up to 200 dives
- Heart Rate Monitoring even underwater with optical sensors
- Pulse Ox Sensor for blood oxygen saturation tracking
- Sleep and Stress Tracking with advanced analytics
- Smart Notifications for calls, texts, and app alerts
- Tactical Features including stealth mode and dual-position format
- Boating Integration with autopilot control and marine data sync
- Outdoor Recreation Tools like altimeter, barometer, and compass
- Training Plans & Metrics for running, cycling, swimming, and more
- Golf Course Mapping with over 42,000 preloaded courses
- Wireless Connectivity via Bluetooth®, ANT+®, and Wi-Fi®
- Up to 48 Hours of Dive Battery Life
Descent G2 Black with Black Band - Key Features
Dive-Ready Performance:
Whether you're diving with air, Nitrox, Trimix, or using closed-circuit rebreathers (CCR), the Descent G2 adapts to your dive. It supports multiple modes like Dive logs, real-time alerts, single-gas and multi-gas, apnea, gauge, and apnea hunt., and fully customizable dive screens enhance safety and give you complete underwater control.
Adventure-Ready Navigation:
Preloaded topo and marine maps, built-in altimeter, barometer, and compass (ABC sensors) for above-ground navigation.
Multisport Training:
Track workouts across running, cycling, swimming, and more with advanced metrics, recovery insights, and adaptive training plans.
Tactical & Navigation Tools:
Includes stealth mode, waypoint projection, dual-format GPS coordinates, and night vision compatibility for mission-ready performance.
Premium Display & Durable Build:
Ultra-clear AMOLED touchscreen with domed sapphire lens and rugged polymer frame ensures readability and resilience in extreme environments.
Health & Wellness Monitoring:
Monitor heart rate, stress, sleep, hydration, respiration, and Pulse Ox to stay in peak condition.
Smartwatch Versatility:
Get notifications, make payments, control music, and access apps — all from your wrist.
Smartwatch Functionality:
Receive smart notifications, control music, and sync with Garmin Connect™ for full lifestyle integration.
Descent G2 Black with Black Band - What Is In The Box
- Descent G2 dive computer and smartwatch
- Extra-long adjustment strap
- Charging/data cable
- Documentation
Descent G2 Black with Black Band - Specifications
General
| Strap material |
Silicone |
| Lens material |
Sapphire crystal |
| Bezel material |
Fibre-reinforced ocean-bound plastic |
| Case material |
Fibre-reinforced ocean-bound plastic |
| QuickFit™ watch band compatible |
Yes (22 m) |
| Physical size |
45.5 x 45.5 x 15.2 mm
Silicone band: 135-230 mm
Extra Long Silicone Band: 128-373 mm |
| Weight |
61 g |
| Leakproof inductive buttons |
Yes |
| Display Size |
30.4 mm (1.2″) diameter |
| Display Resolution |
390 x 390 pixels |
| Colour display |
Yes |
| Large font option |
Yes |
| Battery life |
Dive Mode: Up to 27 hours
Smartwatch: Up to 10 days
Battery Saver Watch Mode: Up to 12 days
GPS: Up to 20 hours
Max Battery GPS Mode: Up to 44 hours
Expedition GPS Activity: Up to 10 days |
| Charging method |
Garmin proprietary clip charger |
| Memory/history |
4 GB |
Clock Features
| Time/date |
Yes |
| GPS time sync |
Yes |
| Automatic daylight saving time |
Yes |
| Alarm clock |
Yes |
| Timer |
Yes |
| Stopwatch |
Yes |
| Sunrise/sunset times |
Yes |
Health Monitoring
| Wrist-based heart rate (constant, every second) |
Yes |
| Resting heart rate |
Yes |
| Abnormal Heart Rate Alerts |
Yes (high and low) |
| Respiration Rate |
Yes |
| Fitness Age |
Yes |
| Body Battery™ Energy Monitor |
Yes |
| All-day Stress |
Yes |
| Relaxation reminders |
Yes |
| Relaxation Breathing Timer |
Yes |
| Breathwork |
Yes |
| Sleep |
Yes |
| Sleep coach |
Yes |
| Nap detection |
Yes |
| Hydration |
Yes (in Garmin Connect™) |
| Women's Health |
Yes (in Garmin Connect™) |
| Health Snapshot |
Yes |
Sensors
| GPS |
Yes |
| GLONASS |
Yes |
| Galileo |
Yes |
| Garmin Elevate™ wrist heart rate monitor |
Yes |
| Pulse Ox Blood Oxygen Saturation Monitor |
Yes |
| Barometric altimeter |
Yes |
| Compass |
Yes |
| Gyroscope |
Yes |
| Accelerometer |
Yes |
| Thermometer |
Yes |
| Depth sensor |
Yes |
Daily Smart Features
| Connectivity |
BLUETOOTH® Smart, ANT+® |
| Connect IQ™ (downloadable watch faces, data fields and apps) |
Yes |
| On-device Connect IQ™ Store |
Yes |
| Smart Notifications |
Yes |
| Text response/reject phone call with text (Android™ only) |
Yes |
| View images from notifications on watch (Android™ only) |
Yes |
| Morning report |
Yes |
| Calendar |
Yes |
| Weather forecasts |
Yes |
| Realtime settings sync with Garmin Connect™ mobile |
Yes |
| Battery Saver - customisable low power watch |
Yes |
| Controls smartphone music |
Yes |
| Find my phone |
Yes |
| Find my watch |
Yes |
| Find My Phone during GPS activity |
Yes |
| Compatible with Garmin Messenger app |
Yes |
| VIRB® camera remote |
Yes |
| Smart trainer control |
Yes |
| Compatible with Garmin Connect™ Mobile |
Yes |
| Smartphone compatibility |
iPhone®, Android™ |
| Red shift mode |
Yes |
| Garmin Share |
Yes |
Workout and Training Plans
| Daily Suggested Workout - Running |
Yes |
| Daily Suggested Workout - Cycling |
Yes |
| Daily Suggested Workout - Walking |
Yes |
| Garmin Running Coach |
Yes |
| Garmin Running Coach Experts |
Yes |
| Garmin Cycling Coach |
Yes |
| Garmin Coach - Prebuilt Cycling Plans |
Yes |
| Cardio workouts |
Yes |
| Strength workouts |
Yes |
| HIIT workouts |
Yes |
| Yoga workouts |
Yes |
| Pilates workouts |
Yes |
| On-screen workout animations |
Yes |
| On-Screen Workout Muscle Map |
Yes |
Activity Profiles
| Gym |
Strength, HIIT, Cardio, Elliptical Training, Stair Stepping, Floor Climbing, Indoor rowing |
| Multisport |
Swimming/Running, Triathlon |
| WELLNESS |
Walking, Pilates, Yoga , Indoor Walking |
| INDOOR RUNNING |
Treadmill Running, Indoor Track Running, Virtual running |
| Outdoor running |
Running, Outdoor Track Running, Trail Running, Ultra Running, Obstacle Racing |
| Outdoor recreation |
Hiking, Indoor Climbing, Bouldering, Climbing, Hunting, Horseback Riding, Golfing, Disc Golf, Archery |
| Cycling |
Biking, Road biking, Mountain Biking, Gravel biking, Bike commuting, Bike touring, eBiking, eMountain Biking, Indoor Biking, Cyclocross, BMX |
| Swim |
Pool Swimming, Open Water Swimming |
| On the water |
Stand Up Paddleboarding, Rowing, Kayaking, Surfing, Kiteboarding, Windsurfing, Fishing, Boating, Water Skiing, Wakeboarding, Wakesurfing, Tubing, Snorkeling, Whitewater |
| Motor sports |
Motorcycling, Overlanding, Motocrossing, ATVing, Snowmobiling |
| Racket sports |
Tennis, Pickleball, Badminton, Squash, Table Tennis, Padel, Platform Tennis, Racquetball |
| Snow & Winter |
Skiing, Snowboarding, Backcountry Snowboarding, XC Classic Skiing, Backcountry Skiing, Ice Skating, Snowshoeing |
| Sport profiles |
Basketball, Volleyball, Field Hockey, Ice Hockey, Football, American Football, Lacrosse, Rugby, Ultimate Disc, Cricket, Softball, Baseball |
| In the ring |
Boxing, Mixed martial arts |
| Dive |
Diving |
| Other activity profiles |
Tactical |
Safety and Tracking Features
| Incident Detection during select activities |
Yes |
| Incident detection alert on phone for wearables |
Yes |
| Assistance |
Yes |
| Live Event Sharing |
Yes |
Tactical Features
| Dual grid coordinates |
Yes |
| XERO™ Locations |
Yes |
Gaming Features
| Gaming activity |
Yes |
| GameOn™ app compatible |
Yes |
Diving Features
| Dive activity maximum operating depth |
100 metres |
| Single-gas mode |
Yes |
| Multi-gas mode |
Yes |
| Gauge mode |
Yes |
| APNOEA mode |
Yes |
| APNOEA hunt mode |
Yes |
| Pool Apnea |
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 gasses. |
| PO2 |
Up to 2.0 with customisable deco PO2 setting |
| Auto start/end dive |
Yes |
| Custom end-dive timeout |
Yes (20s 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 |
|
| Backlight |
Yes (configurable time and intensity; auto-on at depth) |
| Automatically saves dive entry and exit locations |
Yes |
| Sync dive log to Garmin Dive™ Mobile app |
Yes |
| Custom dive data screens |
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 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) |
| Dive Readiness |
Yes |
Boating Features
| Autopilot control |
Yes |
| Boat data streaming |
CIQ |
Activity Tracking Features
| Step counter |
Yes |
| Move alerts (displays on device after a period of inactivity; walk for a couple of minutes to reset it) |
Yes |
| Auto goal (learns your activity level and assigns a daily step goal) |
Yes |
| Calories Burned |
Yes |
| Floors climbed |
Yes |
| Distance travelled |
Yes |
| Intensity minutes |
Yes |
| TrueUp™ |
Yes |
| Move IQ™ |
Yes |
| Garmin Connect™ Challenges app |
Yes (optional Connect IQ app) |
| Automatic rep counting |
Yes |
Training, Planning and Analysis Features
| Customisable screen(s) |
Yes |
| Downloadable training plans |
Yes |
| Course guidance |
Yes |
| HR Zones |
Yes |
| HR Alerts |
Yes |
| HR Calories |
Yes |
| % HR Max |
Yes |
| % HRR |
Yes |
| Recovery Time |
Yes |
| Auto Max HR |
Yes |
| Race glance/widget |
Yes |
| HRV Status |
Yes |
| HR Broadcast (broadcasts HR data over ANT+® to paired devices) |
Yes |
| Respiration Rate (During Exercise) |
Yes (with compatible accessory) |
| GPS speed and distance |
Yes |
| Customisable activity profiles |
Yes |
| Auto Pause® automatic timer halt |
Yes |
| Interval training |
Yes |
| Improved interval (includes open repeats, intervals data page, rest screen and auto detection) |
Yes |
| Advanced workouts |
Yes |
| Power Modes - customisable in-activity battery settings |
Yes |
| HRM running pace and distance |
Yes |
| Auto Lap® |
Yes |
| Manual lap |
Yes |
| Configurable lap alerts |
Yes |
| Heat and Altitude Acclimation |
Yes |
| VO2 Max (Run) |
Yes |
| VO2 Max (Trail Run) |
Yes |
| Training Load |
Yes |
| Training Effect |
Yes |
| Training Effect (Anaerobic) |
Yes |
| Primary benefit (Training Effect labels) |
Yes |
| Customisable alerts |
Yes |
| Voice alerts |
Yes |
| Finish time |
Yes |
| Virtual partner |
Yes |
| Race an activity |
Yes |
| Multi-sport |
Yes |
| Touch and/or button lock |
Yes |
| Shortcuts |
Yes |
| Auto scroll |
Yes |
| Activity history on watch |
Yes |
| Physio TrueUp |
Yes |
| Unified Training Status |
Yes |
Running Features
| GPS-based distance, time and pace |
Yes |
| Running dynamics |
Yes |
| Vertical oscillation and ratio |
Yes |
| Ground contact time and balance |
Yes |
| Stride length (real time) |
Yes |
| Cadence (provides real-time number of steps per minute) |
Yes |
| Running power |
Yes |
| Grade-adjusted pace |
Yes |
| Performance condition |
Yes |
| Lactate threshold |
Yes (with compatible accessory) |
| PacePro™ Pacing Strategies |
Yes |
| Run workouts |
Yes |
| Trail run auto climb |
Yes |
| Race predictor |
Yes |
| Foot pod capable |
Yes |
| Run/Walk/Stand detection |
Yes |
Golfing Features
| Yardage to F/M/B (distance to front, middle and back of green) |
Yes |
| Yardage to layups/doglegs |
Yes |
| Measures shot distance (calculates exact yardage for shots from anywhere on course) |
Manual |
| Digital scorecard |
Yes |
| Stat tracking (strokes, putts per round, greens and fairways hit) |
Yes |
| Garmin AutoShot™ |
Yes |
| Auto CourseView updates |
Yes |
| Green View with manual pin position |
Yes |
| Hazards and course targets |
Yes |
| Round timer/odometer |
Yes |
| Automatic club tracking compatible (requires accessory) |
Yes |
| Pairs with Garmin Golf app |
Yes |
| Tournament legal |
Yes |
Outdoor Recreation
| Point-to-point navigation |
Yes |
| Breadcrumb trail in real time |
Yes |
| Back to start |
Yes |
| TracBack® |
Yes |
| UltraTrac mode |
Yes |
| REFERENCE POINT |
Yes |
| Elevation profile |
Yes |
| Distance to destination |
Yes |
| Barometric trend indicator with storm alert |
Yes |
| Vertical speed |
Yes |
| Total ascent/descent |
Yes |
| Rest Timer (Ultra Run only) |
Yes |
| Future elevation plot |
Yes |
| GPS coordinates |
Yes |
| Sight 'N Go |
Yes |
| Area calculation |
Yes (via Connect IQ™) |
| Fish forecast |
Yes |
| Projected waypoint |
Yes |
| Sun and moon information |
Yes |
| Expedition GPS Activity |
Yes |
| Tides |
Yes |
| Tides Glance |
Yes |
Cycling Features
| Courses |
Yes |
| Bike lap and lap maximum power (with power sensor) |
Yes |
| Race an activity |
Yes |
| Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories) |
Yes |
| FTP (Functional Threshold Power) |
Yes (with compatible accessory) |
| MTB Grit & Flow |
Yes |
| Advanced cycling dynamics |
Yes |
| Compatible with Vector™ and Rally™ (power meters) |
Yes |
| Compatible with Varia Vision™ (head-mounted display) |
Yes |
| Compatible with Varia™ radar (rear-facing radar) |
Yes |
| Compatible with Varia™ lights |
Yes |
| Speed and cadence sensor support (w/sensor) |
Yes |
| Power meter compatible |
Yes |
Swimming Features
| Open-water swim metrics (distance, pace, stroke count/rate, stroke distance, swim efficiency (SWOLF), calories) |
Yes |
| Pool swim metrics (lengths, distance, pace, stroke count, swim efficiency (SWOLF), calories) |
Yes |
| Stroke type detection (freestyle, backstroke, breaststroke, butterfly) (pool swim only) |
Yes |
| Drill logging (pool swim only) |
Yes |
| Basic rest timer (up from 0) (pool swim only) |
Yes |
| "Repeat on" rest timer (pool swim only) |
Yes |
| Auto rest (pool swim only) |
Yes |
| Time and distance alerts |
Yes |
| Countdown start |
Yes |
| Pool swim workouts |
Yes |
| Underwater wrist-based heart rate |
Yes |
| Heart rate from external HRM (real-time during rests, interval and session stats during rests, and automatic heart rate download post-swim) |
Yes (with HRM-Tri, HRM-Swim, HRM-Pro or HRM-Pro Plus) |
Kid Activity Tracking Features
| Toe-to-Toe™ Challenges app |
Yes (optional Connect IQ Toe-to-Toe™ Challenges app) |
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