Table of Contents
This article reviews the best smartwatch-compatible diving computers—Garmin Descent Mk3, Garmin Descent Mk2S, and Apple Watch Ultra Series 2—comparing their features, dive capabilities, and everyday functionality to help divers find the perfect versatile device.
| Category | Weight | Garmin Descent Mk3 | Garmin Descent Mk2S | Apple Watch Ultra Series 2 |
|---|---|---|---|---|
| Dive Features | 0.25 | 5.0/5 | 4.5/5 | 4.0/5 |
| Display and Readability | 0.20 | 5.0/5 | 4.5/5 | 5.0/5 |
| Smartwatch Functionality | 0.15 | 4.5/5 | 4.5/5 | 5.0/5 |
| Navigation Tools | 0.15 | 5.0/5 | 4.5/5 | 4.5/5 |
| Durability and Build | 0.15 | 5.0/5 | 4.5/5 | 4.5/5 |
| Battery Performance | 0.10 | 4.5/5 | 4.5/5 | 4.0/5 |
| Total | 1.00 | 4.90/5 | 4.55/5 | 4.50/5 |
Editor’s Choice
For smartwatch-compatible diving computers, the Garmin Descent Mk3 earns our Editor’s Choice for its unmatched combination of advanced dive functionality, AMOLED display, and multi-sport compatibility.
With its comprehensive dive modes, GPS navigation, and durable construction, the Descent Mk3 is the ultimate tool for divers who demand top-tier performance underwater. Its seamless integration with fitness tracking and everyday smartwatch features ensures exceptional versatility for active lifestyles.
Final Verdict: ★★★★★ (4.90/5)
| Image | Product | Rating | Price |
|---|---|---|---|
 | Garment Descent MK3 |
| Click for Best Price |
 | Garment Descent MK2S |
| Click for Best Price |
 | Apple Watch Ultra Series 2 |
| Click for Best Price |
Introduction
Smartwatch-compatible diving computers seamlessly blend the functionality of advanced dive tools with everyday smartwatch features, making them ideal for divers who value versatility both underwater and on land. These devices offer fitness tracking, app connectivity, and intuitive interfaces while maintaining robust dive capabilities for recreational and advanced divers alike.
In this review, we compare three exceptional smartwatch-compatible diving computers: the Garmin Descent Mk3, Garmin Descent Mk2S, and Apple Watch Ultra Series 2. Each model delivers unique strengths, from dive-specific features and navigation tools to sleek designs and fitness integration, catering to a wide range of needs and lifestyles.
Whether you’re a tech-savvy recreational diver, a fitness enthusiast, or someone who values cutting-edge wearable technology, this guide will help you find the ideal smartwatch-compatible diving computer.
What Divers Should Look for in Smartwatch-Compatible Diving Computers
Comprehensive Dive Features
- Multiple Dive Modes: Look for air, Nitrox, and free diving capabilities to support various diving styles.
- No-Decompression Limits: Ensure the computer tracks dive limits accurately and provides clear alerts.
- Dive Metrics and Logs: Accurate tracking of depth, dive time, temperature, and gas mix is crucial for dive planning and post-dive review.
Smartwatch Functionality
- Fitness Tracking: Features like heart rate monitoring, step counting, and calorie tracking are ideal for active users.
- Notifications: Ensure compatibility with your smartphone for call, text, and app alerts.
- Everyday Wearability: A sleek, lightweight design makes it comfortable for all-day use.
Display and Readability
- High-Resolution Screens: AMOLED or retina displays ensure excellent readability underwater and on land.
- Customizable Layouts: Allows divers to prioritize key metrics like depth, time, and air pressure for quick reference.
- Glove-Friendly Operation: Responsive touchscreens or tactile buttons are essential for underwater usability.
Navigation Tools
- GPS and Mapping: Built-in GPS helps mark dive sites and navigate back to specific locations.
- Digital Compass: Assists with precise underwater navigation.
- Surface Tracking: Surface maps and route planning are invaluable for safety and efficiency.
Durability and Build Quality
- Rugged Materials: Titanium, stainless steel, or sapphire crystal ensure resistance to impacts, scratches, and harsh environments.
- Water Resistance: Check for a depth rating suitable for your diving needs, typically 100 meters or more.
Connectivity and Integration
- App Compatibility: Seamless syncing with fitness, health, and dive apps enhances usability.
- Wireless Connectivity: Bluetooth or Wi-Fi integration allows for quick data transfers and updates.
- Multi-Device Syncing: Compatibility with smartphones, tablets, and other wearable tech is a plus.
Battery Life
- Dive and Daily Use Efficiency: Look for a device with sufficient battery life to handle both diving and smartwatch functions without frequent charging.
- Rechargeable Options: Ensure charging is quick and convenient.
Value for Money
- Feature Balance: Consider the balance between dive functionality, smartwatch features, and price.
- Long-Term Usability: Look for devices that serve as both a high-performance dive computer and a versatile smartwatch.
Why It Matters
A smartwatch-compatible diving computer should offer reliable dive metrics, seamless everyday functionality, and durability in harsh environments. Choosing the right device ensures safety underwater while adding value to your active lifestyle on land.
Why These Three Smartwatch-Compatible Diving Computers Are Ideal
Garmin Descent Mk3
Why It’s Great for Smartwatch-Compatible Diving:
- Advanced Dive Features: Supports multiple dive modes, including air, Nitrox, and Trimix, along with apnea and gauge modes.
- AMOLED Display: Stunning high-resolution screen ensures exceptional readability underwater and on land.
- Comprehensive Navigation: GPS, surface mapping, and dive site marking make it ideal for exploration and safety.
- Multi-Sport Compatibility: Tracks running, swimming, cycling, and more, seamlessly integrating fitness and dive capabilities.
- Durable Build: Titanium bezel and sapphire crystal provide rugged durability for underwater and outdoor use.
Best For: Divers seeking a premium device with cutting-edge navigation, dive modes, and multi-sport tracking.
Garmin Descent Mk2S
Why It’s Great for Smartwatch-Compatible Diving:
- Compact Design: A smaller, sleeker option perfect for divers with smaller wrists or those who prefer a lighter device.
- Versatile Dive Modes: Includes air, Nitrox, Trimix, and freediving modes, offering flexibility for various diving styles.
- Fitness and Health Tracking: Tracks metrics like heart rate, sleep, and body energy levels, making it ideal for health-conscious users.
- Everyday Usability: Stylish design and smartwatch functionality, including notifications and apps, make it perfect for daily wear.
- Robust Construction: Stainless steel or titanium options ensure durability without adding bulk.
Best For: Divers who want a stylish, lightweight, and versatile smartwatch with excellent dive capabilities.
Apple Watch Ultra Series 2
Why It’s Great for Smartwatch-Compatible Diving:
- Dive-Certified Features: Integrates with the Oceanic+ app to provide depth tracking, no-decompression limits, and safety alerts.
- Retina Display: Bright, always-on display ensures excellent readability underwater and in bright sunlight.
- Smartwatch Excellence: Includes robust features like fitness tracking, app notifications, and Siri integration for seamless everyday use.
- Lightweight Titanium Build: Combines durability with a sleek, comfortable design.
- Ultra-Wideband Chip: Advanced location tracking enhances safety during dives and other activities.
Best For: Tech-savvy divers who want a smartwatch-first device with reliable dive-specific capabilities.
Key Takeaways
- Garmin Descent Mk3: Best for divers seeking advanced dive features, premium navigation tools, and multi-sport functionality.
- Garmin Descent Mk2S: Perfect for those who prefer a compact, stylish device with excellent fitness tracking and dive capabilities.
- Apple Watch Ultra Series 2: Ideal for tech enthusiasts looking for a smartwatch-first option with reliable dive functions via app integration.
Comparison at a Glance
| Category | Weight | Garmin Descent Mk3 | Garmin Descent Mk2S | Apple Watch Ultra Series 2 |
|---|---|---|---|---|
| Dive Features | 0.25 | 5.0/5 | 4.5/5 | 4.0/5 |
| Display and Readability | 0.20 | 5.0/5 | 4.5/5 | 5.0/5 |
| Smartwatch Functionality | 0.15 | 4.5/5 | 4.5/5 | 5.0/5 |
| Navigation Tools | 0.15 | 5.0/5 | 4.5/5 | 4.5/5 |
| Durability and Build | 0.15 | 5.0/5 | 4.5/5 | 4.5/5 |
| Battery Performance | 0.10 | 4.5/5 | 4.5/5 | 4.0/5 |
| Total | 1.00 | 4.90/5 | 4.55/5 | 4.50/5 |
Summary of Ratings
- Garmin Descent Mk3: ★★★★★ (4.90/5)
Best For: Divers seeking advanced dive features, exceptional navigation tools, and seamless multi-sport functionality. - Garmin Descent Mk2S: ★★★★☆ (4.55/5)
Best For: Divers who prefer a lightweight, stylish smartwatch with versatile fitness tracking and reliable dive modes. - Apple Watch Ultra Series 2: ★★★★☆ (4.50/5)
Best For: Tech-savvy users looking for a smartwatch-first device with app-enabled dive capabilities and everyday usability.
This comparison highlights the unique strengths of each model, ensuring divers can choose the best smartwatch-compatible diving computer for their needs.
Detailed Dive Computer Highlights
Garmin Descent Mk3
Why It Stands Out:
- AMOLED Display: Stunning high-resolution visuals provide exceptional readability underwater and on land, even in low-light conditions.
- Advanced Dive Modes: Supports air, Nitrox, Trimix, apnea, and gauge modes, catering to recreational and technical divers alike.
- Navigation Tools: Built-in GPS with surface mapping and dive site marking ensures precise navigation during dives and surface excursions.
- Multi-Sport Compatibility: Tracks numerous activities, including running, cycling, swimming, and hiking, making it ideal for fitness enthusiasts.
- Durable Construction: Titanium bezel and sapphire crystal provide rugged durability, ensuring reliability in harsh environments.
- Battery Life: Offers robust performance, with up to 25 hours in dive mode or several days in smartwatch mode.
Best For: Divers seeking cutting-edge dive functionality, top-tier navigation, and multi-sport integration in a premium smartwatch.
Garmin Descent Mk2S
Why It Stands Out:
- Compact and Lightweight Design: Smaller, sleeker build perfect for divers with smaller wrists or those who prefer a lighter device.
- Comprehensive Dive Modes: Includes air, Nitrox, Trimix, and freediving capabilities, making it versatile for recreational and apnea divers.
- Fitness and Health Tracking: Tracks heart rate, sleep, body energy levels, and stress, ensuring holistic health monitoring.
- Stylish Appearance: Modern design makes it suitable for everyday wear while maintaining dive computer functionality.
- Durable Materials: Stainless steel or titanium options ensure resilience while keeping the device lightweight.
- Battery Life: Up to 30 hours in dive mode and several days in smartwatch mode, perfect for multi-day use.
Best For: Divers looking for a stylish, compact smartwatch that combines fitness tracking with reliable dive features.
Apple Watch Ultra Series 2
Why It Stands Out:
- Retina Display: Bright, always-on display ensures excellent readability both underwater and in bright sunlight.
- Dive Features with Oceanic+ App: Depth tracking, no-decompression limits, and safety alerts are enabled through app integration.
- Robust Smartwatch Features: Includes fitness tracking, app notifications, Siri integration, and seamless compatibility with iOS devices.
- Lightweight Titanium Build: Combines durability with a sleek and comfortable design for everyday wear.
- Advanced Navigation: Ultra-Wideband chip and precision GPS enhance surface navigation and location tracking.
- Battery Life: Offers up to 12 hours in dive mode or up to 36 hours in regular use, making it suitable for shorter dive sessions and daily wear.
Best For: Tech-savvy divers who prioritize smartwatch functionality with reliable dive features enabled by third-party apps.
Key Takeaways
- Garmin Descent Mk3: The ultimate dive computer for advanced divers seeking unmatched dive functionality, premium navigation tools, and multi-sport integration.
- Garmin Descent Mk2S: A lightweight, stylish option for divers who value fitness tracking and compact design alongside excellent dive capabilities.
- Apple Watch Ultra Series 2: A smartwatch-first device with reliable app-enabled dive features, ideal for divers who want cutting-edge wearable technology for everyday use.
Each of these models blends advanced dive functionality with everyday usability, ensuring divers can enjoy both safety underwater and convenience on land.
Pros and Cons
Garmin Descent Mk3
Pros
- AMOLED Display: Stunning high-resolution visuals for excellent readability in all conditions.
- Comprehensive Dive Modes: Supports air, Nitrox, Trimix, apnea, and gauge modes, catering to recreational and technical divers.
- Advanced Navigation: GPS and surface mapping with dive site marking enhance safety and exploration.
- Multi-Sport Functionality: Tracks a wide range of activities like running, cycling, and swimming, making it highly versatile.
- Durable Construction: Titanium bezel and sapphire crystal ensure durability in harsh environments.
- Long Battery Life: Up to 25 hours in dive mode, ideal for extended dive trips.
Cons
- Premium Price: One of the most expensive options on the market.
- Complex Features: May feel overwhelming for new divers unfamiliar with advanced dive tools.
- Heavier Build: Bulkier than other smartwatch-compatible options like the Garmin Descent Mk2S.
Garmin Descent Mk2S
Pros
- Compact Design: Lightweight and sleek, perfect for smaller wrists and everyday wear.
- Comprehensive Dive Modes: Includes air, Nitrox, Trimix, and freediving capabilities for versatile use.
- Fitness and Health Tracking: Tracks heart rate, sleep, stress, and body energy levels for holistic health monitoring.
- Stylish and Practical: A balance of aesthetics and functionality, ideal for divers who want a dual-purpose device.
- Durable Build: Stainless steel or titanium options ensure reliability without adding bulk.
- Extended Battery Life: Up to 30 hours in dive mode, great for multi-day use.
Cons
- Smaller Display: Less immersive than the AMOLED screen of the Garmin Descent Mk3.
- Limited Technical Features: Lacks some of the more advanced metrics and tools for technical divers.
- High Cost: Still a premium option, though slightly more affordable than the Mk3.
Apple Watch Ultra Series 2
Pros
- Retina Display: Bright, always-on screen for excellent visibility underwater and in sunlight.R
- obust Smartwatch Features: Includes fitness tracking, notifications, Siri integration, and seamless compatibility with iOS devices.
- App-Enabled Dive Functions: Oceanic+ app provides depth tracking, no-decompression limits, and safety alerts.
- Lightweight Titanium Build: Combines durability with a sleek, comfortable design.
- Advanced GPS Navigation: Ultra-Wideband chip enhances location tracking and surface navigation.
Cons
- Limited Dive Modes: Lacks built-in dive functionality, relying entirely on the Oceanic+ app.
- Shorter Battery Life: Up to 12 hours in dive mode, less suitable for extended dive trips.
- iOS-Dependent: Best suited for Apple users, limiting its appeal to non-iOS users.
- Less Rugged for Diving: While durable, it’s not as dive-centric as the Garmin Descent series.
Key Takeaways
- Garmin Descent Mk3: Best for advanced divers who need top-tier dive and navigation features with multi-sport functionality.
- Garmin Descent Mk2S: Ideal for divers seeking a compact, stylish device with excellent fitness tracking and versatile dive capabilities.
- Apple Watch Ultra Series 2: Perfect for tech-savvy divers prioritizing smartwatch features and app-enabled dive functions for recreational use.
How to Choose the Right Dive Computer for You
Assess Your Diving Needs
- Recreational Divers: Look for user-friendly devices with essential dive modes, such as the Apple Watch Ultra Series 2 with its app-enabled features.
- Advanced Divers: Prioritize comprehensive dive functionality like the air, Nitrox, and Trimix support on the Garmin Descent Mk3 or Mk2S.
- Freedivers: Ensure your dive computer includes apnea mode for breath-hold diving, available on both Garmin models.
Prioritize Display and Readability
- High-Resolution Screens: AMOLED (Garmin Descent Mk3) and retina displays (Apple Watch Ultra Series 2) ensure clear underwater visibility.
- Customizable Layouts: Devices like the Garmin Descent Mk3 allow you to prioritize key dive metrics such as depth and no-decompression limits.
- Glove-Friendly Operation: Ensure buttons or touchscreens are responsive and easy to use underwater.
Consider Smartwatch Features
- Fitness Tracking: If fitness metrics are important, both Garmin models and the Apple Watch offer heart rate monitoring, sleep tracking, and activity tracking.
- Notifications and Connectivity: For calls, texts, and app alerts, the Apple Watch Ultra Series 2 excels with seamless integration into the iOS ecosystem.
- Everyday Wearability: Sleek, lightweight models like the Garmin Descent Mk2S are comfortable for daily use.
Evaluate Navigation Tools
- GPS and Mapping: For divers exploring new sites, the Garmin Descent Mk3 offers advanced GPS and surface mapping.
- Digital Compass: Available on both Garmin models for underwater navigation, ensuring accuracy and convenience.
- Surface Navigation: Ultra-wideband tracking on the Apple Watch Ultra Series 2 enhances safety during surface activities.
Durability and Build
- Rugged Materials: Titanium and sapphire crystal on the Garmin Descent Mk3 and Apple Watch Ultra Series 2 ensure resistance to scratches and impacts.
- Water Resistance: Ensure the depth rating aligns with your diving goals (e.g., 100m+ for recreational diving).
Battery Life
- Extended Performance: For multi-dive days, the Garmin Descent Mk3 and Mk2S offer 25–30 hours of dive mode usage.
- Rechargeable Options: Quick and convenient charging is available on all three models, though the Apple Watch Ultra Series 2 has a shorter battery life (12 hours in dive mode).
App Integration
- Dive Log Management: Garmin models sync with Garmin Connect, while the Apple Watch integrates with the Oceanic+ app for dive data tracking.
- Health and Fitness Apps: Both brands provide robust app ecosystems for health and fitness tracking.
Budget and Value
- Feature-Packed Premium Devices: The Garmin Descent Mk3 justifies its high price with advanced navigation and dive tools.
- Affordable Everyday Use: The Apple Watch Ultra Series 2 is an excellent choice for those prioritizing smartwatch features over hardcore dive capabilities.
- Compact and Stylish Options: The Garmin Descent Mk2S offers high-end features at a slightly lower price with a smaller form factor.
Key Takeaways
- Garmin Descent Mk3: Best for divers who need advanced navigation, multi-dive modes, and multi-sport tracking in a premium smartwatch.
- Garmin Descent Mk2S: Ideal for those seeking a lightweight, stylish dive computer with excellent health tracking and dive capabilities.
- Apple Watch Ultra Series 2: Perfect for recreational divers prioritizing smartwatch functionality with reliable app-enabled dive features.
Conclusion and Recommendation
Smartwatch-compatible diving computers provide an unparalleled blend of advanced dive features and everyday usability, making them versatile tools for active lifestyles. The Garmin Descent Mk3, Garmin Descent Mk2S, and Apple Watch Ultra Series 2 each offer unique strengths, catering to different needs and preferences.
- Garmin Descent Mk3: The ultimate choice for advanced divers who need comprehensive dive modes, superior navigation tools, and multi-sport tracking in a premium smartwatch.
- Garmin Descent Mk2S: A lightweight, stylish option perfect for recreational divers who want robust fitness tracking and reliable dive functionality in a compact design.
- Apple Watch Ultra Series 2: Best for tech-savvy recreational divers seeking a smartwatch-first device with app-enabled dive features and seamless everyday usability.
