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Mares Genius Dive Computer Review

Genius + AI

A big, bright dive computer with solid air integration, but held back by outdated software and poor user experience.

Overall Score: 6.9 / 10 (Acceptable)

Learn more about our scoring system

Last updated: July 2025

I used the Mares Genius for about a year across both warm and cold water wetsuit dives. At the time, I wanted a full-featured computer with air integration and a large screen. On paper, the Genius checked a lot of boxes. In practice, though, it was limited by poor software design, lack of customization, and an ecosystem that felt abandoned by Mares. Despite some nice hardware features, it is not a computer I recommend today.

Support exists in name only. Firmware updates have stalled, and the desktop software feels completely abandoned. No new features or fixes have been released in a long time.

No. The Genius does not allow layout customization. You are locked into their default configuration, which wastes screen real estate and limits your ability to prioritize what matters most to you.

Yes. I used the Genius with a transmitter for 40 dives without any connectivity drops or issues. It performed flawlessly in that respect.

Yes. It is a proprietary cable that feels fragile and unreliable. I was constantly nervous about losing or damaging it on trips. Replacement costs are high, and availability can be limited.

Not really. It is too bulky for a backup, and the UI limitations make it annoying to use even in a secondary role. There are far better backup options available today.

Pros & Cons

ProsCons
Bright, easy-to-read screenTerrible desktop software, not maintained
Air integration worked reliablyNon-customizable menus and layout
Rechargeable batteryProprietary charging cable is fragile
Solid underwater reliabilityUI feels outdated and clunky
Readable in all conditions

Why I Chose Mares Genius

I was looking for a full-size dive computer with a large screen, strong air integration, and a rechargeable battery. The Genius seemed like a great fit for those requirements, and I got a good deal on it through a local shop. It looked like a serious piece of gear and promised a lot of features. Unfortunately, the day-to-day experience fell short of expectations once I started diving with it regularly.


Verdict

The Mares Genius looked promising, but ultimately it did not hold up in real-world use. The screen is excellent and air integration worked flawlessly, but the rest of the experience felt unfinished. The software was clunky, the promised updates never came, and the fragile charging cable was a travel liability. It is not a computer I trust for serious progression.

Would I buy it again? No. Not with better options available.


Who Mares Genius Is Best For

This item is best suited for:

It may not be ideal for:


Deep Dive into the Score

Scoring System: Each category is scored out of 10 and weighted by importance. This model is used consistently across all gear reviews for transparency.

Category Score (0–10) Weight Weighted Score
Function & Performance7.530%2.25
Ease of Use6.020%1.20
Versatility7.015%1.05
Durability & Build Quality7.515%1.125
Value6.010%0.60
Brand Trust & Transparency6.010%0.60
Total6.825

Rounded Display Score: 6.9 / 10

Deep Dive Score Explanations


Performance in the Water