The Best Dive Computers 2025 – Suunto D5, Garmin MK3i, and Shearwater TERIC Compared

Owning your own dive computer is one of the most important investments for divers. In this blog post, we compare three top models: Suunto D5, Garmin Descent MK3i, and Shearwater TERIC. Learn about their features, battery life, decompression models, and why owning a dive computer is worth it.


Why Own a Dive Computer?

A personal dive computer provides safety and convenience. You know the device, can customize it, and your dives are automatically logged. Rental computers are often outdated, poorly maintained, and don’t store your data long-term.


Top Dive Computers Compared

Feature Suunto D5 Garmin MK3i Shearwater TERIC
Display Color TFT, easy to read AMOLED, crystal-clear AMOLED, customizable
Battery Life 7 days watch mode, 6-12h diving 18 days watch mode, 12 days with 2-3 dives daily 7 days watch mode, 30h diving
Decompression Model Suunto Fused™ RGBM 2 Bühlmann ZHL-16 with Gradient Factors Bühlmann ZHL-16C
Connectivity Bluetooth, Suunto App Bluetooth, Wi-Fi, Garmin Connect Bluetooth, Shearwater Cloud
Special Features Upgradeable, Nitrox Smartwatch functions, multi-gas Versatile dive modes, compass

Features in Detail

Garmin Descent MK3i

The Garmin MK3i offers an impressive battery life of about 18 days in watch mode and about 12 days with 2-3 dives daily. With GPS, heart rate monitoring, dive planner, and smartwatch features, it’s a versatile tool for both athletes and divers.

Suunto D5

A user-friendly dive computer with an intuitive menu, bright color display, and good connectivity to the Suunto App. Battery life is solid, and the Suunto Fused™ RGBM 2 model ensures safe decompression.

Shearwater TERIC

The TERIC is popular with technical divers. It offers various dive modes (OC/CC), supports multi-gas, and is highly customizable. Battery life impresses with 30 hours in dive mode.


Pros and Cons of Owning a Dive Computer


Conclusion – Which Dive Computer Suits You?

The Suunto D5 is perfect for recreational divers seeking a simple, reliable device. The Garmin MK3i offers extensive features and impressive battery life. The Shearwater TERIC is the top choice for technical divers. Invest in your own dive computer and enjoy the benefits on every dive!


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