Oceanic Dive Computer Review

oceanic dive computer review
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With this Oceanic Dive Computer review, you'll have access to a couple of dive computers designed to make adventures easy.

From recreational to professional divers, there are several innovative features their devices offer for underwater exploration.

Both the Geo 2.0 and Pro Plus 3.0 boast many intuitive components to suit any skill level needs.

About Oceanic

Oceanic's central premise is to create dive computers that are easy to use yet still functional for all types of divers.

By focusing on the things that matter the most, you can spend more time enjoying the sights than understanding your gear.

Bob Hollis founded Oceanic in 1972 with the commitment of making reliable, innovative, and accessible dive computers.

Today, the company's equipment is available worldwide for all skill levels and all activities.

Their products are designed with the everyday diver in mind and are tried and tested in real-world scenarios.

With the responsibility of keeping divers safe and entertained, all of their computers boast high-end features.

Not only is there an extensive list of innovative components to note, but their pricing is also designed to be value-driven.

Each piece of equipment that you invest in is designed to last through many rec divers worldwide.

Along with dive computers, they also carry computers, regulators, BCDs, masks, and more.

Comparison Chart

Oceanic GEO 2.0 Computer

Oceanic Datamax Pro Plus 3.0

Oceanic Dive Computer Reviews

Oceanic Geo 2.0 Computer Watch

The Oceanic Geo 2.0 is the first dive computer we'll explore in this guide.

It has a neat interface that offers a ton of features for beginner and intermediate recreational divers.

You'll also love the built-in dual-algorithm that is quintessential to all Oceanic devices.

Overview of Features

Some of the most outstanding features of the Geo 2.0 include:

  • Dual Algorithm

One of the main things Oceanic is known for is their dual algorithms in their dive computers.

Divers can choose between the Pelagic DSAT or Pelagic Z+, depending on how conservative they need to be.

The Pelagic DSAT features the Spencer/Powell data basis, while the Pelagic Z+ has the Buhlmann ZHL-16C data set.

  • Four Changeable Modes

Customizing your dive computer to your preferred settings has never been simpler than with four interchangeable modes.

Divers can choose from WATCH, NORM, GAUGE, and FREE modes.

WATCH features a countdown timer, daily alarm, alternate time, and Chrono.

With the NORM setting, you can opt for air and nitrox, while GAUGE features an additional run timer.

FREE is a popular option, which helps track important calculations and allows divers to switch to NORM seamlessly.

  • User-Friendly

As mentioned, one of the central objectives of these dive computers is to ensure they are user-friendly.

Beginners and advanced divers will love the interface design, which allows you to navigate through menus quickly.

Unlike other dive computers, you can cycle forward or backward through all of the settings.

  • Two Nitrox Settings

In addition to the user-friendly menu cycling, divers can also choose between two Nitrox mixes.

You can customize the values up to 100% O2 with zero restrictions.

  • Minute and Second Displays

There's nothing more important than having the most accurate data at your fingertips.

The display on this dive computer offers both minutes and seconds and a countdown timer for deep stops.

You'll be able to turn the stops on or off while setting two-minute countdowns when you reach half of your maximum depth.

  • Easy-To-Read Display

Have you ever used a dive computer that required you to go through different menus before seeing essential data?

Fortunately, the easy-to-read display in this unit shows all relevant information without scrolling.

Divers will have immediate access to depth, temperature, and time with a single glance.

With that said, since this is a beginner-friendly model, the Geo 2.0 doesn't have higher-end metrics.

For example, you won't have access to air integration or a compass.

There is a low-battery indicator that lets you know when to replace your battery before diving as an added benefit.

  • User-Changeable Battery

It's often that divers prefer batteries that they can change themselves with their equipment.

If you use a faulty battery in your device, it's easy to remove and replace with a newer version.

Rechargeable built-in batteries, on the other hand, require service centers for any repairs.

With the Geo 2.0, you have full control over replacing your battery whenever you desire to ensure it's always packed.

  • Audible and Visual Alarms

You can guarantee you will always be apprised of any changes in your dive data while underwater.

With the combination of audible and visual alarms, divers will be alerted quickly to hazards and changing conditions.

Many find the combination of these two alerts to be preferable to one or the other.

There are several types of alarms that you can customize and set before diving, including:

    • PO2 limit violations
    • Ascents that are too fast
    • Exceeded dive times
    • Decompression violations
    • Deep stop violations
    • Gas switches resulting in PO2 > 1.6
  • Basic Dive Log

Compared to some of the more expensive models, the dive log in the Geo 2.0 is somewhat lacking.

You can save up to 24 dives worth of data with samples at two to 60-second intervals.

Once finished, you can then transfer the dive data to a computer using a connector that you purchase separately.

  • Dual Gas Mixes

With this unit, you can use two gas mixes that fall between 21% and 100% oxygen levels.

You can also set specific PO2 limits, ranging between 1.2 and 1.6 bar.

  • Auto-Updating Firmware

Making sure you always have the latest technology in your dive computer is essential to meet modern demands.

With the Geo 2.0, you'll have automatic firmware updates when connecting the device to a PC.

This feature helps ensure you're always equipped with full functionality while adventuring underwater.

  • Build Quality

This dive computer doesn't have a ton of unique materials used in its design, which speaks to its beginner-friendly nature.

The majority of the case is constructed from rubber, which is comfortable to wear and resistant to salt and freshwater.

There is also a stainless steel accent ring that leads to the stainless steel buttons for menu navigation.

Compared to other dive computers, this model is somewhat sleek and stylish.

It indeed has one of the more low-profile designs that you'll find in wrist dive computers.

It also weighs in at approximately 0.55 pounds, which will add very little weight to the rest of your diving gear.


  • Easy to learn and navigate
  • Has four simple buttons
  • Additional conservatism options
  • Dual algorithm diving
  • Four available diving modes
  • Automatic altitude adjustment
  • Ideal for beginner and mid-level divers
  • Allows for mid-dive gas switches
  • Enabled for dual gas mixes


  • Limited screen size
  • Inadequate memory capacity for regular divers
  • Does not allow air integration
  • Doesn’t feature a compass
  • Will require separate cable purchase

Oceanic Pro Plus 3.0 Dive Computer

The Oceanic Pro Plus 3.0 Dive Computer is a significant upgrade from the basic Geo 2.0.

This model isn't a wrist computer but is a console computer for a more traditional appeal.

There are many modernized features built into the unit that helps bring a more seamless experience.

Overview of Features

This Oceanic computer watch has a lot to offer, including:

  • Quick Disconnect

Connecting and disconnecting your dive computer is substantially more comfortable with this model than others.

It features an optional quick disconnect that allows you to twist the locking ring to remove and lock the computer.

When the ring is twisted, you'll have extra security to ensure the dive computer doesn't inadvertently disconnect.

  • Large Display

One of the more notable visual features of this dive computer is that it boasts an extra-large display.

The wide viewing screen is essential for seeing all of your relevant data straight away without any confusion.

The screen has an extensive font that is easy for anyone to read while underwater.

Compared to other dive computers, the numbers are up to 22% larger, making it very clear.

  • Dual Algorithm

As earlier mentioned, Oceanic diving gear is known for its dual algorithm.

With this device, you can choose between the Pelagic Z+ and Pelagic DSAT algorithms.

Pelagic Z+ is known to be a conservative option for recreational diving while also offering maximized bottom time.

This algorithm also offers more extended depths with fewer penalties.

Pelagic DSAT is the second choice, which maximizes your safety while diving, especially for multi-level excursions.

  • Algorithm Syncing

Another unique component of the algorithm is the syncing feature.

Once you have chosen the appropriate settings, you can then match your diving buddy's algorithm.

With this, you won't have to worry about reducing your dive time, even if you're both using different computers.

  • Backlight Options

Backlighting is essential for any diver, especially in low light and for night dives.

The Pro Plus 3.0 has two different backlight options: the manual and the automatic.

With the OceanGlo Backlight, your dive computer's light can be engaged with a push-button for a boost of visibility.

The automatic light is called SmartGlo, which ensures the dive computer is ready to read in most conditions.

It's a convenient option since the sensor automatically adjusts the screen's brightness based on available light.

  • Patented Air Remaining

One of the more unique features of this device is its patented air remaining technology.

With this algorithm, you will have the most accurate information about your air consumption.

You can maximize your dive time with the help of this revolutionary feature.

  • Customizable Activation

If you're the type of diver that prefers a more hands-off approach, you'll appreciate the activation options.

Divers can opt to manually activate their dive computer if they prefer to have maximum control with their gear.

Alternatively, you can use the water activation, which starts up the computer once you're submerged.

  • Customizable Alarms

Another custom feature of this device is the ability to set alarms based on preference.

The highly audible alarms include:

    • High O2
    • High PO2
    • Elapsed dive time
    • Max depth
    • Maximum nitrogen tissue loading
    • Dive time remaining
  • Memory and Storage

Similar to the Geo 2.0, the Pro Plus 3.0 has limited storage space when tracking your dive history.

Users will store up to 24 dives on the device before needing to clear the memory.

Fortunately, you can choose to upload your data to a computer to review at a later date.

When you use the OceanLog software, you can store up to 150 dives at a time and share the data with friends.

It's a fantastic feature for those who want to review and improve their diving abilities.

You can also relive some of your excursions with all of the fluid data in the easy-to-read charts.

Multiple Graphing Solutions

The most important data you need can be viewed in graph format, and there are several types to consider.

You'll find the following on your device:

  • Air time remaining
  • Nitrogen tissue loading
  • Oxygen loading
  • Variable ascent rate

Personalized Clocks

Regardless if you prefer to dive in imperial or metric, you can easily switch between the two with this device.

By choosing between a 12- and 24-hour clock, you can also view the time in a format most comfortable for you.

Divers can also set the specific time of day as well as the date for up-to-date information.

  • Pre-Set Calculations

If you're new to diving and unaware of the best settings, there are pre-set calculations that you can choose.

You can choose between fresh and saltwater calculations to acclimate the computer to differing conditions in this dive computer.


  • Displays surrounding temperature
  • Large and easy to read display
  • Flawless decompression timers
  • Easy to read in cave dives and at night
  • Intuitive menus
  • Simple two-button operation
  • The casing is highly durable


  • The diving log program is a separate purchase
  • Will require a screen protector
  • May flash warnings in safe situations
  • Requires separate USB connector
  • Quick Connect is optional

Final Verdict

Both the Geo 2.0 and Pro Plus 3.0 are well-suited for most recreational divers, as seen in this Oceanic Dive Computer review.

The Geo 2.0 is convenient with its sleek appeal and basic, user-friendly features.

You’ll also notice it has multiple convenient dive settings to consider.

The Pro Plus 3.0 is recommended for more intuitive benefits and can be easily used in low light.

Although it's larger, it can be well worth it for people who prefer console dive computers.

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