The Garmin Descent MK3i, Shearwater Peregrine TX, and SCUBAPRO G2 excel in different areas, with the MK3i offering unmatched versatility, the Peregrine TX providing exceptional value, and the G2 balancing functionality and battery life.

Editor’s Choice

For an all-in-one dive computer that combines advanced navigation tools, multi-sport functionality, and top-tier performance, the Garmin Descent MK3i is our Editor’s Choice. Its ultra-bright AMOLED display, built-in GPS, and air integration make it the ideal choice for divers who value versatility and cutting-edge features.

Final Verdict: ★★★★★ (4.79/5)

Image	Product	Ratings	Price
	Shearwater Peregrine TX	★★★★★ (4.71/5)	Click for Best Price
	Garmin Descent MK3	★★★★★ (4.79/5)	Click for Best Price
	SCUBAPRO G2	★★★★☆ (4.43/5)	Click for Best Price

Introduction

Choosing the right dive computer is essential for safety, functionality, and maximizing your underwater experience. The Shearwater Peregrine TX, SCUBAPRO G2, and Garmin Descent MK3i are three outstanding options that cater to a range of diving needs, from recreational dives to advanced technical explorations.

Each of these dive computers excels in unique ways, whether it’s the affordability and simplicity of the Peregrine TX, the vibrant display and user-friendly features of the G2, or the advanced navigation tools and multi-sport functionality of the MK3i. This guide will provide an in-depth comparison of their features, performance, and suitability to help you decide which model is the perfect fit for your diving style.

Best For: Divers seeking clarity, reliability, and the right balance of features for recreational and advanced dives.

Design and Build

The design and durability of a dive computer play a significant role in its usability and reliability. Here’s how these three models compare:

Shearwater Peregrine TX

• Build Quality: The Peregrine TX features a durable and lightweight design, with a scratch-resistant lens that ensures longevity.
• Ergonomic Design: Its compact profile and straightforward interface make it comfortable for most divers.
• Depth Rating: Rated to 120 meters (394 feet), it’s well-suited for recreational and technical dives.
  Score: 4.5/5

SCUBAPRO G2

• Build Quality: The G2 has a reinforced plastic casing and a scratch-resistant lens, providing good durability for regular dives.
• Compact and Comfortable: Its streamlined design and interchangeable straps allow for a personalized fit.
• Depth Rating: Rated to 120 meters (394 feet), making it reliable for recreational and moderately advanced dives.
  Score: 4.0/5

Garmin Descent MK3i

• Build Quality: Premium materials like titanium or stainless steel with a sapphire crystal screen provide unmatched durability and elegance.
• Sleek and Versatile: Combines ruggedness with a stylish design that transitions easily from underwater to everyday wear.
• Depth Rating: Rated to 100 meters (328 feet), suitable for recreational and most technical dives but slightly less than competitors.
  Score: 5.0/5

Summary

• Best for Rugged Durability: Garmin Descent MK3i, with premium materials and a sleek design.
• Best for Simplicity and Comfort: Shearwater Peregrine TX, offering lightweight durability for everyday diving.
• Best for Recreational Divers: SCUBAPRO G2, with a compact build and interchangeable straps for personalization.

Display and Readability

A clear, readable display is essential for monitoring dive metrics, especially in low-light or murky conditions. Here’s how these three models compare:

Shearwater Peregrine TX

• AMOLED Display: Offers a bright, sharp, and high-contrast screen, making it easy to read in all lighting conditions, including low-light environments.
• Customizable Layouts: Divers can adjust the screen to display critical data based on their preferences.
• Brightness Control: Adjustable backlighting helps balance visibility and battery conservation.
  Score: 5.0/5

SCUBAPRO G2

• TFT Color Display: Vibrant and colorful, ensuring good readability in most conditions, but slightly less sharp compared to AMOLED screens.
• Customizable Options: Multiple screen layouts allow divers to prioritize key metrics for their specific dive style.
• Adjustable Brightness: Ensures visibility underwater while extending battery life.
  Score: 4.5/5

Garmin Descent MK3i

• AMOLED Display: Ultra-bright and high-resolution screen with vivid colors and sharp contrast, excelling in low-light conditions.
• Always-On Mode: Keeps essential data visible at all times without requiring manual interaction.
• Customizable Layouts: Provides extensive options for tailoring the display to individual preferences.
  Score: 5.0/5

Summary

• Best for Low-Light and Readability: Garmin Descent MK3i, with its ultra-bright AMOLED display and always-on mode.
• Best for Customization on a Budget: Shearwater Peregrine TX, offering premium readability at an affordable price.
• Best for Vibrancy: SCUBAPRO G2, with a colorful display that remains clear in most conditions.

Features and Functionality

The range of features and functionality in a dive computer determines its adaptability for different diving styles. Here’s how these three models compare:

Shearwater Peregrine TX

• Dive Modes: Includes air, nitrox, freediving, and gauge modes, making it versatile for recreational and technical diving.
• Customizable Alarms: Provides clear visual and audible alerts for depth, ascent rates, and no-decompression limits.
• User-Friendly Interface: Simple navigation and intuitive menus make it accessible for divers of all experience levels.
• Limitations: Does not support air integration or advanced navigation tools like GPS or a compass.
  Score: 4.5/5

SCUBAPRO G2

• Dive Modes: Supports air, nitrox, trimix, freediving, and gauge modes, catering to recreational and advanced divers.
• Air Integration: Optional wireless transmitter tracks tank pressure for enhanced safety and convenience.
• Safety Features: Customizable alarms and optional heart rate monitoring offer personalized dive tracking.
• Customizable Layouts: Divers can prioritize data such as depth, tank pressure, and no-decompression limits.
• Limitations: No built-in GPS or compass, and some advanced features require additional accessories.
  Score: 4.5/5

Garmin Descent MK3i

• Dive Modes: Includes air, nitrox, trimix, CCR, freediving, and gauge modes, covering a wide range of diving needs.
• Air Integration: Garmin’s SubWave sonar technology allows wireless tank pressure monitoring for up to five tanks.
• Advanced Navigation: Built-in GPS and digital compass enable precise surface and underwater navigation.
• Multi-Sport Functionality: Features fitness tracking, smartwatch capabilities, and health monitoring for versatility beyond diving.
• Limitations: High price point and complexity may be overwhelming for casual or beginner divers.
  Score: 5.0/5

Summary

• Best for Advanced Navigation and Multi-Sport Use: Garmin Descent MK3i, with its comprehensive features and GPS capabilities.
• Best for Recreational and Advanced Diving: SCUBAPRO G2, offering robust functionality and air integration with optional accessories.
• Best for Simplicity and Affordability: Shearwater Peregrine TX, providing essential dive features at a budget-friendly price.

Ease of Use

The ease of use of a dive computer greatly influences how quickly divers can access critical information and configure settings during dives. Here’s how these three models compare:

Shearwater Peregrine TX

• User-Friendly Interface: Features an intuitive menu system with large, clear icons for easy navigation.
• Two-Button Operation: Simplifies navigation, making it ideal for divers of all experience levels, including beginners.
• Customizable Layouts: Allows divers to prioritize key data fields based on their preferences.
• Strengths: Straightforward design minimizes the learning curve.
  Score: 4.5/5

SCUBAPRO G2

• Three-Button Navigation: Large, tactile buttons provide reliable control even when wearing gloves.
• Straightforward Menus: Well-organized menus ensure quick access to dive modes, settings, and critical metrics.
• Customizable Displays: Divers can tailor the layout to show their preferred data, enhancing usability.
• Strengths: Suitable for both recreational and advanced divers due to its intuitive design.
  Score: 4.5/5

Garmin Descent MK3i

• Five-Button Interface: Ergonomically designed buttons provide precise navigation through its extensive features.
• Advanced Functionality: Despite its complexity, the interface is logically organized, allowing experienced users to master its features.
• Pre-Dive Checklists: Built-in tools ensure divers can easily verify settings before diving.
• Strengths: Offers extensive functionality, but the number of features may feel overwhelming for beginners.
  Score: 4.0/5

Summary

• Best for Simplicity: Shearwater Peregrine TX, with its intuitive two-button design and beginner-friendly interface.
• Best for Balanced Usability: SCUBAPRO G2, combining advanced features with a straightforward layout.
• Best for Experienced Users: Garmin Descent MK3i, offering advanced functionality with a slight learning curve.

Battery Performance

Battery performance is critical for dive computers, particularly for multi-day trips or extended dive sessions. Here’s how these three models compare:

Shearwater Peregrine TX

• Rechargeable Battery: Provides up to 30+ hours of dive time per charge, depending on brightness settings and usage.
• USB Charging: Convenient charging via USB makes it travel-friendly and easy to recharge between dives.
• Power Management: Adjustable brightness helps extend battery life during extended use.
  Score: 4.5/5

SCUBAPRO G2

• Rechargeable Lithium-Ion Battery: Offers an impressive 50 hours of dive time on a single charge, making it ideal for multi-dive trips.
• USB Charging: Simple and widely compatible charging options ensure convenience.
• Battery Status Indicators: Provides clear notifications for remaining power, minimizing the risk of mid-dive power loss.
  Score: 5.0/5

Garmin Descent MK3i

• Rechargeable Built-In Battery:
  • Dive Mode: Provides up to 30 hours.
  • Smartwatch Mode: Lasts up to 16 days, supporting versatility beyond diving.
• Proprietary Charging Cable: While efficient, it requires specific accessories, which may be inconvenient if misplaced.
• Power-Saving Features: Includes brightness adjustments and optimized power modes for extended battery life.
  Score: 5.0/5

Summary

• Best for Long Battery Life: SCUBAPRO G2, with its 50-hour dive time and dependable performance for multi-day trips.
• Best for Multi-Use Versatility: Garmin Descent MK3i, offering excellent battery performance for both diving and smartwatch use.
• Best for Simplicity and Portability: Shearwater Peregrine TX, with reliable battery life and easy USB charging.

Value for Money

The value of a dive computer depends on its features, performance, and price. Here’s how these three models compare:

Shearwater Peregrine TX

• Affordable Option: At approximately $600 USD, the Peregrine TX delivers exceptional value for recreational and technical divers on a budget.
• Features Included: Offers an AMOLED display, customizable layouts, and multiple dive modes, making it a strong contender in its price range.
• Limitations: Lacks air integration and advanced navigation features, which may deter some advanced divers.
  Score: 5.0/5

SCUBAPRO G2

• Mid-Range Pricing: Priced at around $1,200 USD, the G2 offers a vibrant display, customizable layouts, and air integration, but the cost may feel steep for recreational divers.
• Long Battery Life: Its 50-hour rechargeable battery enhances its long-term usability.
• Optional Accessories: Features like air integration and heart rate monitoring require additional purchases, increasing the total cost.
  Score: 4.0/5

Garmin Descent MK3i

• Premium Pricing: At approximately $1,400 USD, the MK3i is the most expensive of the three, but it justifies its price with advanced features like GPS, multi-sport functionality, and air integration.
• Versatility: Combines dive computer, GPS navigator, and smartwatch capabilities, offering great value for divers who want an all-in-one device.
• Limitations: The high price may not appeal to divers focused solely on diving features.
  Score: 4.5/5

Summary

• Best for Budget-Conscious Divers: Shearwater Peregrine TX, offering top-tier readability and functionality at an unbeatable price.
• Best for Battery and Display: SCUBAPRO G2, though its optional accessories increase overall costs.
• Best for Advanced Features: Garmin Descent MK3i, delivering premium functionality for divers seeking an all-in-one solution.

Pros and Cons

Shearwater Peregrine TX

SCUBAPRO G2

Garmin Descent MK3i

Summary

• Shearwater Peregrine TX: Best for budget-conscious divers seeking simplicity and readability but lacks air integration and navigation tools.
• SCUBAPRO G2: Great for recreational and advanced divers who value air integration and long battery life but comes with a higher cost and no GPS.
• Garmin Descent MK3i: Ideal for divers needing GPS, multi-sport functionality, and top-tier display quality, though at a premium price.

Overall Rating

Here’s the Overall Rating with a weighted rating table for the Shearwater Peregrine TX, SCUBAPRO G2, and Garmin Descent MK3i:

Final Verdict

• Shearwater Peregrine TX: ★★★★★ (4.71/5)
  Best for budget-conscious divers who value simplicity, readability, and affordability, though it lacks advanced navigation and air integration.
• SCUBAPRO G2: ★★★★☆ (4.43/5)
  Ideal for recreational and advanced divers who prioritize a vibrant display and long battery life but may find the higher cost and optional accessories less appealing.
• Garmin Descent MK3i: ★★★★★ (4.79/5)
  Perfect for divers seeking an all-in-one device with GPS, multi-sport functionality, and premium materials, though its high price may not suit all budgets.