Product No: 414129


The Smart is a high-quality scuba diving computer, featuring a well-organized display with crisp, visible characters and an ergonomic profile with two buttons that make it easy to navigate. Regarded as one of the most intelligent dive computers on the market.

Product Information


The Smart Scuba Dive Computer has a clear, easy to read display and an exceptional design that is both comprehensive and ergonomic, making it ideal for multimix and freediving. Above the water's surface, you can adjust nitrox settings and quickly view the logbook. Underwater, the Smart enables you to toggle between depth information on the top line and complementary information on the bottom line. The middle row displays details on the decompression state.

The side buttons enhance the Smart's compact, ergonomic profile, allowing for seamless performance. The upper right button enables you to manage data on maximum depth, average depth, and maximum depth reached by the gas. The lower right button adjusts the field next to the dive time, displaying temperature, oxygen percentage, CNS, time of day, and stopwatch. To ensure safety, the time of day has a 4-second timeout, after which the dive time reappears.

The main features of the Smart dive computer are:

• Full featured Nitrox dive computer with two gas capability
• Bottom timer mode with resettable average depth and stopwatch
• Upgradable firmware
• Decompression dive planner with additional surface interval function
• Complete watch functions: Date, stopwatch, wake-up alarm, second time zone
• Ergonomic and easy to use
• Freediving mode with dedicated alarms
• Battery: CR2430

The Smart's battery has a guaranteed lifespan of 2-3 years, depending on the number of dives, and is replaceable by the user (for battery replacement, please contact your local Mares dealer. Refer to the Mares Locator).

The Smart is capable of downloading logbook data, and receiving firmware updates. Through the use of the Mares Dive Organizer Program (PC) and in conjunction with the Dive Link 2 USB interface clip and cable, data can be transferred between the Smart and the Dive Organizer Program.

Alternatively, the Mares Bluelink Pro uses low energy Bluetooth technology to communicate directly with the Mares App, or the MySSI App to download logbook data and firmware updates on your smart devices (Bluelink Pro cannot be used with PC/MAC to transfer data).

*Dive Link 2 and Bluelink Pro accessories sold separately.


Battery duration:
200-300 dives over a three year time span
Nitrox use:
EAN from 21% to 99%
Max Displayed Depth:
Ascent Rate Indicator (m/min - ft/min):
Memory capacity:
40 hr
Profile Sampling Rates:
5 s
Segment Display
Gas switching:
Dual Time:
Daily Alarm:
Plan Mode:
Fresh and Seawater Settings:
Option To Exclude Audible Alarms:
Exclusion of "Uncontrolled Ascent":
Altitude Adjustment:
Measurement range: -10°C to +50°C / 14°F to 122°F
Logbook Memory:
35 hours of dive profile at 5-second sampling rate
Display material:
Mineral glass
Quartz clock, time, date, dive time display up to 999 minutes
Upgradeable software:
Air Integrated:
Graphic and Numeric
Tank Pressure:
USB Charger:


  1. Mineral Glass Display
    Mineral Glass Display

    Mineral Glass DisplayMineral Glass Display.
    Tempered glass with superior scratch resistance and improved readability in all diving conditions and viewing angles.

  2. Gas Switching
    Gas Switching

    Gas SwitchingSetting the computer to include one or more oxygen enriched - gases (up to 99%) in addition to your main gas; allow you to benefit from shorter decompression times by switching gases during the dive.

  3. Software Upgradeability
    Software Upgradeability

    Software UpgradeabilitySoftware Upgradeability.
    Keep your dive computer up-to-date with the latest Mares developments.

  4. Segment Display
    Segment Display

    Segment DisplayNeedle-sharp information combined with intelligent placement of information for easiest readability.



  • Dive Organizer (PC) Web Installer Release 2.29 (Preferred Method of Install)
    This is an updated version of Dive Organizer.

    • Supports the SCR Horizon computer with V0.3 firmware
    • More control regarding database update procedure
    • Increased firmware stability
    • Resolved dive time errors which were experienced with some computer models
    • Resolved asynchronous operations issues
    • Minor improvements

    The Web Installer is the suggested method for installing Dive Organizer. If the target computer is not connected to the internet, please consider downloading the Full Setup program, found here.
    Languages: EN


  • FW. Smart V0.05 (for serial number < 50000)
    Available for Smart 414129 for serial number < 50000

    Firmware V.0.05 includes the following features:

    • 2 gases
    • Pressure sensor MS5541
    • Old display
    • 2 water density (salt, fresh)
    • Deepstop always on

    Dive Organizer 2.21 is needed to perform the upgrade and download the logbook.
    Languages: EN
  • FW. Smart V2.01 (for serial number > 50000)
    Available for Smart 414129 for serial number > 50000

    Firmware V.2.01 includes the following features:

    • 2 gases
    • Pressure sensor MS5803
    • New display
    • 3 water density (salt, fresh, EN13319)
    • Deepstop on/off
    • Fixing minor bugs

    Dive Organizer 2.21 is needed to perform the upgrade and download the logbook.
    Languages: EN


Please follow the instructions contained in the manual. You must read and understand all warnings and instructions in their entirety before using our products. Scuba diving is a hazardous activity, which involves a risk of injury to any and all parts of the body. As with all scuba diving equipment, our products are designed to be used by trained, certified divers only.

Special Disclaimer
A dive computer is an electronic instrument and as such it is not immune to failure. To protect yourself against the unlikely event of a failure, in addition to the dive computer, also use a depth gauge, a submersible pressure gauge, a timer or watch, and dive tables.

Delivery & Returns


Fedex calculated rates for any order under $100 or for any expedited order.
Free shipping on any order over $100.



Any order placed by 12:00 PM EST Monday - Friday (excluding public holidays) will ship within 3 - 5 days. If you’ve placed an order after 12:00 PM EST or on a weekend, your order will process on the next business day. 

Orders placed with expedited shipping will ship out the same day if the orders are placed by 12:00 PM EST Monday – Friday (excluding public holidays)



All products may be returned for a full refund to the original payment method, provided

the items are returned to us within 30 days of you receiving the products and are in new 1st quality conditions. 

To initiate a return please reach out to us Monday - Friday 9:00 am - 5:00 pm EST at 1-800-874-3236, or email us at .



Please ensure that any product you wish to return is unused, in its original packaging and has all tags still attached. You agree that it is at the sole and absolute discretion of Mares to determine if the product has been used. Shipping charges on all returns are your responsibility and are not subject to a refund.


  • Returned products must show no signs of use or wear and must be returned in its original packaging (e.g., plastic, clam shell,

mesh bag). All tags are still attached, no scrapes on the products, etc.



Unfortunately, we are not able to exchange products. We are able to refund your initial order, but you will have to place a new order online.