How to Choose a Dive Computer:
Features, Functions & Key Considerations

LCD: Basic, budget-friendly displays.

OLED & AMOLED: High contrast, better for visibility in bright conditions. Often found in higher-end models.

MIP (Memory in Pixel): Used in some Garmin models, good visibility in direct sunlight but not as vibrant as AMOLED.

Button-based: More reliable for cold water diving, especially with gloves.

Touchscreen: Sleek, but can be less responsive in cold water or with gloves. Consider your local conditions.

Air & Nitrox: Standard on most dive computers. Suitable for recreational divers.

Trimix & CCR: Found in higher-end models, but generally unnecessary for recreational divers.

Air & Nitrox Modes: Essential for recreational divers.

Gauge Mode: Turns the computer into a bottom timer, great for tech divers or specialized dives.

Freedive Mode: Provides tracking for apnea divers, but may not be useful if you're only into scuba diving.

With AI: Provides real-time tank pressure readings and calculates remaining bottom time based on your gas supply. Very useful for divers with higher levels of experience or those diving in remote areas.

Without AI: Still works perfectly for basic recreational dives and can be paired with a separate pressure gauge.

Rechargeable: Great for frequent travelers and those who dive often. Most models last several days on a full charge.

User-replaceable batteries: Preferred for long-term durability, especially if you dive in remote locations.

Look for models that offer Bluetooth sync to your phone or a computer for easy dive log access and software updates.

Focus on ease of use, readability, and basic features like Nitrox support and battery life.

Must-have: Simple interface, clear display, affordable price.

Choose a lightweight, compact design with long battery life.

Must-have: Rechargeable battery, lightweight build, and ease of packing.

In cold water, choose a computer with a larger display, backlighting, and battery longevity that can handle extreme temperatures.

Must-have: Backlit, larger screen, temperature resistance, and longer battery life.

Opt for smaller, more discreet models that can be worn daily without being bulky.

Must-have: Slim profile, easy-to-read display, and durable materials.

If you're diving frequently, you’ll want a more robust and feature-rich model. For occasional divers, basic models are often sufficient.

Some computers are upgradable with firmware updates, while others may have limited long-term functionality.

Air integration is useful for some divers, but not essential for all. If you’re just starting out, a standard model without AI could work perfectly.

Look for a simple, user-friendly computer with basic features like Air and Nitrox support, a clear display, and a long battery life. Models like the Suunto Zoop Novo are great entry-level options.

If you’re diving more often and getting into deeper dives, consider models with advanced features like Air Integration, multiple gas mixes, and upgradeable firmware. The Shearwater Peregrine TX or Garmin Descent G1 are great picks.

For divers involved in technical diving (e.g., Trimix or CCR) or are tech curious, look for high-end computers like the Shearwater Perdix 2, which offer multigas support, advanced decompression algorithms, and technical dive modes.