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 Rental computers are often outdated, poorly maintained, and don’t store your data long-term.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
- Pros: Custom settings, reliable logging, better features, modern technology
- Cons: Higher upfront cost
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!
Find the perfect dive computer or contact us for advice!