Garmin Descent Mk3 Dive Smartwatch
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✓ Authorized Garmin Dealer
✓ Lowest Price Guaranteed
✓
FREE & FAST Shipping: In Stock and Ready to Ship
✓ Questions? Call an RFA Team Member:
1-855-864-6442
The Garmin Descent Mk3 is an advanced dive computer and multisport GPS smartwatch built for explorers above and below the surface. With a bright 1.2" AMOLED display, 200-meter dive rating, sapphire lens, and leakproof inductive buttons, it’s engineered for serious underwater performance. Dive confidently with multiple gas dive modes, DiveView™ color maps featuring 4,000+ global dive sites, and a built-in dive compass, all while tracking your entry and exit points with surface GPS. The all-new Dive Readiness tool helps you plan smarter by factoring in sleep, training, and recovery—giving you a clearer picture of when your body is best prepared for depth.
Beyond the water, the Descent Mk3 transforms into a full-featured multisport and wellness companion. Train with animated workouts, VO2 max, and Garmin Coach, or navigate new terrain with TopoActive and SkiView™ maps, SatIQ™ GPS, and turn-by-turn directions. With up to 30 hours of battery life in dive mode and smart features like Garmin Pay™, smart notifications, music storage, and safety tracking, this dive watch goes far beyond the reef—ready to support your active lifestyle, every day of the week.
| Sleep score and insights | ✓ |
|---|---|
| Battery life (smartwatch mode) | Up to 10 days (4 days always-on) |
| Built-in mapping | ✓ |
| Pulse Ox blood oxygen | ✓ |
| Garmin Pay™ | ✓ |
| Multi-band GPS | ✓ |
| Music storage | ✓ |
| Training readiness | ✓ |
| Training status | yes (improved) |
| Display type | AMOLED |
| Touchscreen | ✓ |
| Water rating | Dive (200 meters) |
| Strap material | Silicone |
| Lens material | Sapphire Crystal |
| Bezel material | Fiber-reinforced polymer / Stainless steel |
| Case material | Fiber-reinforced polymer |
| QuickFit® watch band compatible | ✓ (22 mm) |
| Physical size | 46.6 x 46.6 x 15.1 mm Fits wrists with a circumference of 141-213 mm |
| Weight | 67 g |
| Display size | 1.2" (30 mm) diameter with a center hole |
| Display resolution | 390 x 390 pixels |
| Color display | ✓ |
| Large font option | ✓ |
| Battery type | Lithium ion |
| Battery life |
Smartwatch: Up to 14 days (5 days always-on) Battery Saver Watch Mode: Up to 18 days GPS Only: Up to 29 hours (24 hours always-on) All Satellite Systems: Up to 18 hours (16 hours always-on) All Satellite Systems + Multi-Band: Up to 15 hours (13 hours always-on) Max Battery GPS: Up to 53 hours Expedition GPS: Up to 12 days *Assuming typical use with SatIQ technology |
| Charging method | Garmin proprietary plug charger |
| Memory / History | 4 GB |
| Time/date | ✓ |
| GPS Time Sync | ✓ |
| Automatic daylight saving time | ✓ |
| Alarm clock | ✓ |
| Timer | ✓ |
| Stopwatch | ✓ |
| Analog hands | ✓ |
| Sunrise/sunset times | ✓ |
| Wrist-based heart rate (constant, every second) | ✓ |
| Resting heart rate | ✓ |
| Abnormal heart rate alerts | yes (high and low) |
| Respiration rate | ✓ |
| Fitness age | ✓ |
| Body Battery™ energy monitor | ✓ |
| All-day stress | ✓ |
| Relaxation reminders | ✓ |
| Relaxation breathing timer | ✓ |
| Breathwork | ✓ |
| Sleep | yes (advanced) |
| Sleep coach | ✓ |
| Breathing variations | ✓ |
| Nap detection | ✓ |
| Hydration | yes (in Garmin Connect™ and optional Connect IQ™ widget) |
| Women's health | yes (in Garmin Connect™ and optional Connect IQ™ widget) |
| Health snapshot | ✓ |
| GPS | ✓ |
| GLONASS | ✓ |
| Galileo | ✓ |
| SatIQ™ Technology | ✓ |
| Garmin Elevate™ wrist heart rate monitor | ✓ |
| Pulse Ox Blood Oxygen Saturation Monitor | ✓ |
| Barometric altimeter | ✓ |
| Compass | ✓ |
| Gyroscope | ✓ |
| Accelerometer | ✓ |
| Thermometer | ✓ |
| Ambient light sensor | ✓ |