When it comes to diving, your dive computer is more than just a tool—it’s your underwater buddy, keeping you safe and making each dive even more enjoyable. But with so many options out there, picking the right one can feel like a deep dive into the unknown. The good news? Finding a dive computer that matches your style, experience, and goals doesn’t have to be complicated.
The best dive computers strike the perfect balance between functionality and personal preference, giving you all the dive stats you need without overcomplicating things. In this guide, Mike’s Dive Store’s experience staff give you their Top 10 Dive Computers of 2025 (in no particular order), each offering unique features to suit every type of diver. Dive in to discover the perfect companion for your underwater adventures.
1. Garmin Descent Mk3i Dive Computer 43mm
The Robust All-Rounder for the Active Lifestyle
The Garmin Mk3i series is a versatile powerhouse, perfect for both avid divers and active lifestyle enthusiasts. Known for its accuracy and reliability, it features advanced dive modes, GPS navigation, air integration, and a clear display suited for recreational and technical divers. The Mk3i 43mm version combines exceptional dive functionality with smartwatch features, including payment options, sports tracking, and navigation—all in a comfortable, compact design for daily wear. As one of the top dive computers available, it excels in both decompression algorithms and multisport functionality, making it the ultimate all-purpose watch. Also available in a 51cm model along with the Garmin Descent T2 Transceiver.
2. Suunto EON Core Dive Computer
Best for Teaching and Affordability
For dive instructors or those looking for a budget-friendly option with robust functionality, the Suunto Eon Core is an excellent choice. It supports up to 10 linked transmitters, making it ideal for teaching purposes or complex group dives. Its simple interface, affordable price point, and reliability make it a great pick for divers who prioritise ease of use without sacrificing quality.
3. Scubapro Luna 2.0 Dive Computer
User-friendly Design with High-performance
Designed for divers who value simplicity, functionality, and compactness. Its bright, easy-to-read display offers excellent visibility in various underwater conditions, ensuring quick and effortless data access when you need it most. Setting up and navigating the Luna is intuitive, making it ideal for both beginners and seasoned divers who prefer a straightforward interface. One standout feature of the Luna is its remarkably small and discreet transmitter. As one of the smallest on the market, it integrates seamlessly with your gear, allowing for a more streamlined, compact setup. This not only reduces bulk but also enhances maneuverability underwater, giving you a clean, uncluttered kit.
4. Shearwater Peregrine TX
Bright Display for Night Dives
The Shearwater Peregrine TX is an ideal choice for divers who prioritise a vibrant, customisable display for easy readability, especially in night or low-light conditions. Equipped with air integration and an on-board compass, it offers essential dive functions in a straightforward design, without the added features of a smartwatch. Its large, easy-to-read screen allows quick adjustments to digital sizes and colours, enhancing visibility. Perfect for those who prefer the functionality of a console dive computer over a smaller watch style, it’s an excellent option for recreational divers who don’t need the advanced technical features of the Shearwater Perdix 2 Titanium Dive Computer.
5. Suunto Ocean Dive Computer
Budget-Friendly Smartwatch Alternative
Launched in 2024, the new Suunto Ocean is a budget-friendly alternative to the Mk3i, offering similar features at nearly half the price. With a bright, colourful, and user-friendly display, it’s designed for easy navigation, making it an excellent choice for divers. This versatile dive computer includes customisable algorithms and 95 sports modes, allowing it to function as a daily smartwatch and a fitness companion. Ideal for divers and fitness enthusiasts alike, the Suunto Ocean combines smart functionalities and practicality without the premium price tag.
6. Suunto Zoop Novo Dive Computer
Classic User-Friendly Design
The Zoop Novo is a classic in the world of dive computers, known for its straightforward, intuitive design. Its big, bright display and large buttons make it one of the most user-friendly options on the market, especially for beginners. For divers looking for a simple, no-fuss computer, the Zoop Novo delivers with ease and reliability.
7. Shearwater Teric Dive Computer
Ultimate Versatility for Tec and Rec
The Shearwater Teric is a versatile, watch-sized dive computer designed for everything from recreational to advanced technical and CCR diving, making it one of the most adaptable options on the market. While its focus is on diving rather than everyday life, this specialisation allows it to excel at its purpose, delivering an unmatched underwater experience. With a sleek design, full-colour display, and extensive customisation options, the Teric is stylish enough for daily wear while fully equipped to meet the demands of serious divers.
8. Garmin Descent G2 Dive Computer
A Perfect All-Rounder Without Breaking the Bank
The Garmin Descent G2 delivers everything most divers need—without the premium price tag. While it skips air integration, it still packs serious punch with advanced dive modes (including nitrox and trimix), GPS tracking, and a stunning AMOLED display.
It’s built for both recreational and technical divers who want a reliable, stylish computer that can handle deep dives and surface life alike. With full smartwatch functionality—fitness tracking, heart rate, notifications, and even solar charging options—the G2 doubles as a daily sport watch, making it incredible value for money. If you're not fussed about AI, this is one of the best all-round dive computers you can buy in 2025.
9. Mares Puck 4 Dive Computer
Simple and Effective
The Mares Puck 4 delivers essential dive data—depth, time, and safety alerts—in a clear, sturdy, and compact design. Perfect for recreational divers, it’s a reliable, no-frills option that ensures safe and enjoyable underwater adventures. Built with a sturdy and compact design, the Puck 4 is ideal for divers who want a reliable, durable companion without unnecessary complexity. While it may not offer advanced features for technical diving, its robust construction and dependable performance make it an excellent choice for recreational divers.
10. Shearwater Perdix 2 Dive Computer
The Go-To for Serious and Technical Divers
The Shearwater Perdix 2 is widely regarded as one of the best dive computers on the market for advanced recreational and technical diving. It supports nitrox, trimix, and CCR diving, has a crisp, bright full-colour display, and offers a fully customisable interface.
With a rugged design, long-lasting user-replaceable AA batteries, and Bluetooth connectivity for easy dive log syncing, the Perdix 2 is built to handle tough conditions and complex dives alike. Its intuitive menu and clear layout make it a favourite for cave, technical, and sidemount divers looking for reliability and performance without compromise.
Each of these dive computers brings something unique to the table. Whether you’re prioritising affordability, versatility, tech features or style, this set of our Top 10 Dive Computers 2025 has you covered. We also give you some extra info on maintenance tips for dive computers to keep them running for longer. From experienced tech divers to novices, there’s a dive computer on this list that will meet your needs and enhance your underwater adventures.
If you're still unsure what's the best choice for your needs, feel free to give us a shout and we'll be more than happy to help! You can email us at support@mikesdivestore.com, schedule a video consultation, or drop by our Chiswick store for expert, face-to-face advice.
