Are you planning to buy backup dive computers, and are you confused about the options ? You have landed on the right page.

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Our Top Picks:

Best Overall: Buy: Cressi User Changeable Battery READ REVIEW

Best For First Computer: Buy: Mares Dive Computer READ REVIEW

Best For Well Organized Logs: Buy: Shearwater Dive Computer READ REVIEW

Best For Free Dive: Buy: Mares Backup Dive Computer READ REVIEW

Works With Linux: Buy: Cressi Backup Dive Computer READ REVIEW

Best With Transmitter: Buy: Shearwater Backup Dive Computer READ REVIEW

Best For Social Media: Buy: Aqualung Backup Dive Computer READ REVIEW

Best For Freediving: Buy: Aqua Lung Backup Dive Computer READ REVIEW

Best For Great Price: Buy: Suunto Backup Dive Computer READ REVIEW

Best Overall: Cressi User Changeable Battery

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Compared with other computers in this category, the Cressi User Changeable Battery has a design with broader appeal. In addition, the cressi user changeable battery is a completely modular, rugged computer with a wide UFDS display, which provides the proverbial ease of navigation and cressi computer menus. Battery saver mode when the computer is not used with automatic power-on. The Leonardo dive computer is made in Italy by Cressi, a brand pioneer in scuba diving, snorkeling, and freediving equipment since 1946. Lastly, the cressi user changeable battery looks amazing in black/grey color and is available in 10 other colors: black/red, black/orange, black/orange etc.,.

Most customers find that the computer is so bulky and the straps are way too big. Further, they say that the computer is the best dive watch out there for the price for sure. Moreover, a few strongly agree that this is a great entry - level dive computer and it functioned exactly as it should have. To sum up, buyers found this to be one of the best computers for daily purposes.

• This is compatible with all versions of Windows and with Macs.
• This is perfect for someone that needs reader glasses.
• The watch would go so the length of the band works well.
• This computer is pretty easy to use, with its single button interface.

Best For First Computer: Mares Dive Computer

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The Mares Dive Computer's high-end materials to make sure that it ages well with use. The mare dive computer has audible alarms and it is comfortable. Make sure this fits by entering your model number. Further, the computer is a perfect fit for a large display for superior readability and an intuitive user interface.

Finally, the mares Dive computer can be bought for good value, It is very simple and has an intuitive design.

Almost all customers opine that the computer has a "plan" mode that does exactly that, It shows your bottom time for various depths based on your current levels. Also, a few strongly agree that the computer is much more liberal than the standard dive tables. And, they strongly agree that the term puck refers to the size of the computer as in hockey puck. Overall, for almost all buyers, it was just what they wanted.

• This is a good choice for a first computer.
• Slim design for a perfect fit large display for superior readability, intuitive user interface.
• The computer has a log that you can see the information on the screen.
• This includes the "pdf" that's the type of file.

Best For Well Organized Logs: Shearwater Dive Computer

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Compared with other computers in this category, the Shearwater Dive Computer has a convenient design. In addition, the shearwater dive computer works perfectly and it is audible. Make sure this fits by entering your model number. In addition, it is legible and it is super intuitive. Finally, the shearwater dive computer is available in blue, black and silver colors.

Most buyers quickly discovered that the computer provides quick diagnostic information. Also, a few say that the computer is made by Pelagic, which is the same company that makes computers for Oceanic, Aqualung and Sherwood. In addition, they strongly agree that the computer comes with a wireless charging cradle which can give a full charge in 1.5 hours on a "quick charge" and 4 hours or so on a regular charge. To sum up, most customers call the computer suit best, and no one questions it.

• This is without the wireless pressure gauge recording tank pressure.
• This allows many more transmitters to work side-by-side without signal interference.
• This is easy to read display, and the teric is easier to read and better.
• This is compatible with hollis or oceanic.

Best For Free Dive: Mares Backup Dive Computer

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Compared with other computers in this category, the mare backup dive computer has a convenient design. In addition, the mare backup divecomputer is designed for a great price and it is super sharp. Mare smart scuba diving wrist top computer is what happens when you add the superior sharpness of segmented characters, clarity of a perfectly laid-out display, and top it off with the ergonomic advantages of two buttons. Also, it is worn easily. is designed with user-friendliness and it is very intuitive. Finally, the mare backup dive computer is available in a total of 6 different colors: black/white, black, black/grey etc.,.

Almost all customers quickly discovered that the computer is is an absolute for diving these days. And, they also found that the computer features or better experience additionally can be removed for use in a console. In addition, a few say that the computer is a great computer, but the manual needs to be enhanced.

• This comes with a PC interface and does include a usb cable.
• This computer is not air integrated and can not be used with a transmitter.
• This is designed for perfect ergonomics and it is stylish.
• This will be a perfect back up computer someday.

Works With Linux: Cressi Backup Dive Computer

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Cressi offers a variety of computers for personal choice and yet maintains quality in all the variants. The Cressi Backup Dive Computer is compatible with Windows XP, Vista, 7, 10 and Mac OS. Make sure this fits by entering your model number. Also, this makes for a great buy and it works perfectly.

The computer is the software for computer that allows the diver to download and manage the dive sessions recorded with the leonardo or giotto dive computer. Moreover, it is easy to connect both wrist and console mounted units, which simply sit on top of the USB. Most importantly, the cressi backup dive computer is manufactured in Italy by Cressi, a brand pioneer in scuba diving, snorkeling and freediving equipment since 1946.

Most customers find that the computer is an IR link, or that the IR window is on the device. Moreover, a few also found that the computer is easy to download your log. In short, many buyers have used the computer for more than a few months without any issues, and it shows no sign of giving up.

• It is perfect for download Cressi leonardo dive data.
• This is covered by a 2-year limited warranty.
• This can be bought for good value and it works with Linux.
• This saves dives and it is rechargeable.

Best With Transmitter: Shearwater Backup Dive Computer

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Not everyone likes to purchase a computer for their daily usage, but the Shearwater Backup Dive Computer would be an anomoly. The shearwater backup divecomputer is easy to read on a large full - color screen. Make sure this fits by entering your model number. Further, it is yellow and it is intuitive to use. Finally, the shearwater backupdive computer is very nice and it is very intuitive.

Most customers agree that the computer includes a screen protector already installed to help prevent scratches on the display face. In addition, a few say that the computer comes with 2 different wrist straps. Further, they also found that the computer comes with nitrtox and trimix unlocked, For cc+bailout you will need to present your certifications to Shearwater and they will send you the firmware to unlock it.

• Easy to read on a large full color screen.
• This comes with a protector on the screen that can be taken underwater also.
• Logbook of last 1000 hours of diving.
• Wireless tank pressure integration - transmitter not included.

Best For Social Media: Aqualung Backup Dive Computer

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The best part: Aqualung Backup Dive Computer costs comparatively little and it is available to ship in 24 hours. Make sure this fits by entering your model number. In addition, the computer is easy to learn and it is good for social media. To sum up, with a 4.8 rating and more than 104 buyers, the Aqualung backup dive computer stands as the best choice.

One customer says - "The desktop and mobile applications make downloading your dive data pretty simple. ". Most customers quickly discovered that the computer can be used on a few dives so far, gauge works flawlessly and the i300c is easy to use.

• 3 gas computer. Able to switch up to three gases underwater.
• Backlighting. For easy reading in low light.
• Good brand reputation.

Best For Freediving: Aqua Lung Backup Dive Computer

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For a low asking price, Aqua Lung Backup Dive Computer has managed to overwhelm their customers by packing as many features as they could. Make sure this fits by entering your model number. Further, the computer maintains settings and calculations between battery changes. Most importantly, the aqua lung backupdive computer is available in classy black color.

Most buyers quickly discovered that the computer is designed for freediving as it keeps data designed for scuba diving. Also, they strongly agree that the computer is perfect for casual diving or as a backup. Further, they say that the computer logs 12 hours of dive time, so the exact number of dives depends on the duration of each dive. Obviously, this computer passed the test and had very satisfied buyers eager to share their experience.

• Salt or fresh water dive selection.
• The computer does not have bluetooth, it uses a download cable.
• User changeable battery and data retention. Maintains settings and calculations between battery changes.
• 2 nitrox gases up to 100% changeable underwater.

Best For Great Price: Suunto Backup Dive Computer

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Not everyone likes to purchase a computer for their daily purpose, but the Suunto Backup Dive Computer would be an anomoly. The suunto backup dive computer has audible alarms and it is audible. Make sure this fits by entering your model number. In addition, the computer is best for maximum depth display and it is best for maximum depth. Finally, the suunto backup dive computer is easy to read in low light & night conditions | 0 to 5, 000 psi (360 bars) display.

Most buyers quickly discover that the computer can be tricky the first time, but it is doable at home. And, they also found that the computer is an earlier model of the cobra.

• Operating modes: air, nitrox and gauge, programmable for 21% to 50% oxygen mixtures.
• This comes with a hose connector.
• This is a little bigger for better visibility.
• These features are intuitive and quick/easy to use.