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Description
Description
The Mares Smart Apnea Dive Computer is the next generation of the Nemo Apneist, a trusted choice for spearfishermen and demanding freedivers. This compact, user-friendly scuba gear computer blends apnea-focused functionality with reliable dive data, a backlight for easy reading, and a logbook that captures sessions for review. It stores profiles up to 30 hours and offers data transfer to PC or Mac via a USB clip and Dive Organizer software.
Designed for practical diving performance, the Smart Apnea supports freediving in apnea mode, with dive mode for depth control and a convenient watch mode for settings and timing. Built for challenging conditions, it features a stainless steel case, mineral glass, and a backlit 31 mm diagonal display, delivering durable, dependable operation for scuba and diving enthusiasts alike.
Features
Features
- Apnea mode optimized for freediving, with dive mode for depth and parameter tracking, in a compact, easy-to-use interface.
- Max displayed depth 150 m and reliable depth data for accurate monitoring during dives.
- Memory and sampling 20–30 hours of log memory with 1-second profile sampling for detailed session review.
- Display and readability 31 mm diagonal display, segment display, mineral glass, backlight, and fluorescent numbers for low-light visibility.
- Durability and materials stainless steel construction with water resistance up to 20 ATM/293 PSI.
- Power and battery replaceable CR2430 battery with an estimated 200 hours of diving over a 2-year period.
- Operating environment suitable for a wide temperature range: -10°C to +50°C (operating) and -20°C to 70°C (storage).
- Data transfer and software USB clip data transfer to PC or Mac with Dive Organizer software for post-dive review and analysis.
- Care and maintenance rinse with fresh water after each dive, avoid chemicals, and replace the battery when necessary; refer to the instruction manual for details.
Specifications
Specifications
| Feature | Details |
|---|---|
| Material | CR2430 |
| Battery Duration | Approx. 200 hours of diving over a 2 year time span |
| Max Displayed Depth | 150m |
| Ascent Rate Indicator (m/min - ft/min) | false |
| Memory Capacity | 20-30 hours |
| Profile Sampling Rates | 1 second |
| Display | Segment Display |
| Gas Switching | false |
| Stopwatch | true |
| Watch | true |
| Dual Time | false |
| Daily Alarm | false |
| Plan Mode | false |
| Choice of Metric/Imperial | false |
| Fresh and Seawater Settings | false |
| Residual Nitrogen Reset | false |
| Option To Exclude Audible Alarms | false |
| Exclusion of "Uncontrolled Ascent" | false |
| Altitude Adjustment | Not specified |
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Frequently Asked Questions
Why do I need my own dive computer?
A dive computer tracks the actual depth and time profile you have dived and the tissue loading that follows from it, which is personal to you. A rented computer has no record of your recent diving, and swapping models each trip means relearning the display and menus when you should be focused on the dive. Owning one you know well is a genuine safety and comfort improvement.
Can two divers share one dive computer?
No. A computer only tracks the profile of the diver actually wearing it, and even buddies who stay together do not follow identical depth and time profiles. Every diver needs their own computer, and passing one between divers or between dives is unsafe.
What does conservatism mean on a dive computer?
Conservatism settings make the computer's calculations more cautious, shortening allowed bottom times and adding margin beyond the base algorithm. Divers commonly add conservatism for factors such as cold, hard work, fatigue, or repetitive multi-day diving. How and when to adjust it is covered by your training and your computer's manual, so set it before you get in the water and follow what your computer tells you during the dive.
What kind of battery does a dive computer use?
Broadly there are two types: user-replaceable batteries, often a coin cell that you or a shop swap along with resealing an o-ring, and sealed rechargeable batteries that charge from a cable or dock. Neither is universally better, as replaceable cells are convenient on remote trips while rechargeables avoid ever opening the case. Follow the manual exactly for any battery change, because an improperly seated o-ring or case is the usual cause of a flooded computer.
Do I need to do anything special for altitude diving or flying after diving?
Yes, both change the picture, and both are governed by your training agency's guidance and your computer's instructions rather than any casual rule of thumb. Many computers have an altitude setting that must be configured before diving at elevation, and most display a no-fly or surface-interval countdown after a dive. Follow your computer and your training, and ask a dive professional or a dive-medicine specialist if you are unsure.
How do I care for a dive computer?
Rinse it in fresh water after every dive day, paying attention to the buttons and around any sensor openings where salt crystals form, and let it dry fully before storing. Keep it out of prolonged direct sun and extreme heat, and avoid pressing buttons while sand is on the case. Inspect the strap or bungee often, because a failed strap loses far more computers than a failed computer does.
What is the difference between wrist, console, and air-integrated dive computers?
A wrist computer is worn like a watch and read by raising your arm, while a console computer sits at the end of a hose with your other gauges. Air integration means the computer also displays cylinder pressure, either through a hose or from a wireless transmitter on the first stage, and often estimates remaining gas time. All of them run a decompression algorithm, so the real difference is where you read the information and how much of it you get.



