Shearwater Dive Computer Review

shearwater dive computer review
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In this Shearwater Dive Computer review, we'll go over the outstanding features that set these devices apart.

As a relatively new company, these dive computers assist with providing demanding divers almost everything they desire.

There are plenty of fascinating elements in both the Teric and Perdix AI dive computers to consider.

About Shearwater Research

Shearwater Research was initially founded in 2004 by Bruce Patridge, who has an extensive background in computer systems.

By adding his programming and advanced technical diving experience to the mix, their dive computers are incredibly innovative.

What you're bound to notice while wearing one of their devices is that they have high-tech features embedded in a simple user interface.

Divers will find it substantially simpler to deal with structural menus, minimal button pushes, optimal underwater clarity, and more.

Instead of opting for a mid-tier dive computer that lacks essential features, both the Teric and Perdix AI have the essentials and more.

Whether you're a technical diver or a recreational diver, you can easily find a device that suits your needs.

Another brilliant feature of Shearwater is that they are always looking to develop the latest and greatest technology.

As the years go on, more of their unique devices boast modernized features that make diving safer, more fun, and accessible.

Comparison Chart

Shearwater Research Teric Wrist Dive Computer

Shearwater Research Perdix AI with Transmitter

Shearwater Dive Computer Reviews

Shearwater Research Teric Wrist Dive Computer

At first glance, you're bound to notice that the Shearwater Research Teric Wrist Dive Computer is in a league of its own.

Its fashionable design makes it ideal for wearing in relatively any situation, whether on land or water.

With a body that resembles an everyday timepiece but packed with innovative diving features, it's genuinely all-in-one.

Overview of Features

  • Low-Profile Design

The Teric will sit on your wrist like any other watch you might own, especially if you're a fan of smartwatches.

Its face is perfectly designed to display essential diving and everyday information, such as the date and time.

There are multiple watch faces that you can switch between, depending on the style you're trying to achieve.

  • Buhlmann GF Algorithm

Like other types of Shearwater tech, this dive computer boasts the Buhlmann GF algorithm for conservative divers.

With the help of Erik Baker, the company has allowed for high gradient factors to control the conservatism.

You can customize the efficiency of the device with ease, depending on your preferences.

  • AMOLED Screen

If you're looking for top-tier optics while underwater, we highly recommend considering the AMOLED screen built into this computer.

Not only does it offer full-color viewing, but the colors are substantially more vivid than with other dive computers.

Also, the AMOLED makes it one of the highest resolutions on the market so that you can see essential data in any condition.

  • Configurable Data Colors

One of the main reasons divers prefer color screens on their dive computers is the ease of use.

You'll allocate specific colors to certain metrics, such as yellow for air integration and red for decompression time.

Fortunately, this watch allows you to set custom colors for each set of data that you want to review while diving.

  • Multiple Diving Modes

Regardless of the type of diving you prefer, there are multiple modes to choose from that give you all the essential data you need.

    • Freediving: With the freediving mode, you'll have access to configurable sampling rates as well as improved descent and ascent rate indicators. You can also configure your haptic and audible alarms to disable them or adjust them for depth and time.
    • OC Recreational: With the OC recreational mode, you can set your Nitrox up to 99%.
    • OC Technical: This feature is essential for divers who prefer to use Trimix, as it's enabled.
    • CC/BO: With CC/BO, the dive computer will have a fixed PPO2 value.
    • Gauge: Often found in most dive computers, the gauge set is another diving mode to consider.
  • Optional Air Integration

Air integration is imperative for most divers, especially those learning the ropes.

With the optional integration with this dive computer, you can connect it to up to two transmitters at a time.

  • Durability

When you invest in a dive computer, you want to make sure it lasts a long time before showing signs of wear.

The Teric is one of the more durable options, primarily since it features a sapphire crystal window that withstands scratches and impact.

The bezel and the buttons on the outside of the device are made from 316 stainless steel.

  • Battery Life

You'll find a rechargeable lithium-ion battery that offers plenty of charge for frequent dives within the dive computer.

When in dive mode at 100% brightness, the device will last more than 30 consecutive hours.

For everyday wear on watch mode, you'll get up to 50 hours of use on a single charge.

For your convenience, there's a wireless charging station included with every order.

  • Customizable Alarms

There are many different ways you can customize your alarms with this device.

You can easily switch between vibration and audible alarms to ensure you're always aware of changing conditions.

There is also the opportunity to set specific alerts for specific hazards, depending on what you prefer to keep track of.

  • Interchangeable Straps

The personalization of your new dive computer doesn't stop at optional watch faces and customizable alarms.

The Teric also allows divers to change the color and type of strap they wear throughout the day and while diving.

There are a multitude of straps available separately from Shearwater if you want to show off your style.

  • Four-Button Design

It can be challenging to deal with multiple buttons on a single wrist dive computer, mostly when submerged.

This device features a simple four-button interface that allows you to adjust the light, access the menu, and display info.

The fourth one is a customizable function button, so each user can decide what they want it to do at their leisure.

  • Bluetooth-Enabled

You'll be glad to hear that the Teric is fully Bluetooth-enabled, allowing you to connect your watch to your phone or computer wirelessly.

With connectivity, you're able to upload your dive logs into the Shearwater program.

On a computer, you can display your dive logs using several eye-catching charts and graphs for review.

  • Protective Case

This feature is quite notable for travelers since you'll no longer worry about packing your gear.

With the included ballistic nylon polymer case, you can carefully pack your dive computer for overseas trips.


  • Fantastic “big” display
  • Easily customizable information
  • Three brightness adjustments
  • Easy-to-adjust menu settings
  • Watch straps feel strong
  • Comes with strap extender
  • Built with an installed scratch guard
  • Excellent battery life
  • Superior casing durability


  • Haptic feedback could improve
  • Hard to read in direct sunlight
  • Challenging to pair with tablets

Shearwater Research Perdix AI With Transmitter

The Shearwater Research Perdix AI With Transmitter is a significant upgrade from the existing Perdix.

It now features an extra-large easy-to-read display that offers plenty of pertinent information.

Although it's not for casual wear like the Shearwater Teric, the Perdix AI is perfectly equipped for underwater exploration.

Overview of Features

  • Multiple Diving Modes

Like the Teric, the Perdix AI features four different diving modes, including:

    • OC Recreational: With this diving mode, there are three gas Nitrox options for recreational divers. It also features optional air integration as well as configurable information on the bottom row.
    • OC Technical: By default, the OC technical diving mode is Trimix enabled. It also features optional air integration.
    • CC/BO: The Closed Circuit/Bailout mode is Trimix enabled while also offering constant PO2 for closed circuits. You'll have access to optional air integration for bailout, diluent, and oxygen gases.
    • Gauge: The final diving mode is a gauge, which offers time, depth, and changeable stopwatch functions. You'll have access to full dive logging as well as tank pressure information through the menus.
  • Optional Air Integration

As per the diving modes, you can tell that this device is equipped to show tank pressure in any situation.

This feature is outstanding because it allows you to keep track of your most crucial gear, regardless of how you prefer to dive.

  • Buhlmann GF Algorithm

The algorithm in your dive computer is one of the most important features to consider.

This device boasts the Buhlmann GF, modified to offer gradient factors developed by Erik Baker.

With multiple levels of conservatism, you have more control over your dives.

You'll also find that this algorithm is highly recommended for beginners and intermediate divers.

This feature is easily one of the most significant that makes it a universal device for all skill levels.

  • High-Resolution Display

You'll find that diving in low light will become even more straightforward with the high-resolution display in this device.

The screen is just over two inches large, and the color and numbers are incredibly vivid.

Compared to similar devices, the Perdix AI boasts enhanced saturation and color range for your convenience.

Like many other dive computers, it is a full-color LED display.

  • Low-Profile Design

It can be challenging to work with a dive computer that's heavy and bulky.

Fortunately, this device is thin and low-profile, making it 30% smaller in volume than other Shearwater dive computers.

You'll feel far more hydrodynamic and have a heightened ability while navigating underwater.

  • Two-Button Interface

Divers looking for the most straightforward user interface will love the two-button design that this model features.

It's incredibly easy to navigate through the menus, mainly because it features a state-aware concept.

The structural design of the programming within the device makes it intuitive, innovative, and very user-friendly.

  • Replaceable Batteries

If you're not a fan of rechargeable batteries built into your dive computer, this is a phenomenal alternative.

Both the Perdix AI base unit and transmitter have user-replaceable batteries that you can change at any time.

The dive computer requires a AA battery, while the transmitter requires CR2 lithium.

On average, divers can garner up to 40 hours of consecutive use with a single AA battery in the dive computer.

  • Wireless Connectivity

Everything that you need to keep your new dive computer updated is easy to update wirelessly.

This device can connect to your iPod, iPad, PC, and Mac with low power consumption at any time.

When connected, you can update the firmware, download your diving information, run diagnostics, and more.

The Shearwater dive log program is as intuitive as the device itself, allowing you to upload 100 hours' worth of dives.

You'll be able to review and analyze your dive logs, create a profile, review temperatures, and more.

The program also monitors your SAC and tank pressure throughout your dives.

By customizing the logging program, you can adjust what information you want to be displayed and hidden.

It also makes it simpler to share your dive logs with friends and diving partners.

  • Customizable Displays

Every diver has an idea of the information they want to have displayed on their wrist.

With the ability to customize your device's display, you can choose the most important information for you.

Depending on the dive mode you choose, nearly every segment on the home screen can be adjusted.

It's also important to note that the Perdix AI offers several different languages to choose from.

You'll switch from English to French, Simplified Chinese, Traditional Chinese, Japanese, Korean, German, Portuguese, Spanish, and Italian.

  • Heavy-Duty Case

Protecting your diving equipment when traveling is essential, mostly because you wouldn't wear this device unless underwater.

Fortunately, you will receive a ballistic nylon case, which is designed to take quite a beating when venturing to your favorite dive spot.


  • Carefully designed menus
  • Perfect for technical divers
  • Ideal for all skill levels
  • Crisp and clear display
  • Incredibly easy to adjust settings
  • Changing gases is simple
  • Impressive battery life
  • Adjustable backlight
  • Comfortable straps


  • Dive log software can glitch
  • Bulkier than other models

Final Verdict

Having either the Teric or Perdix AI can be substantially beneficial, as we learned in this Shearwater dive computer review.

You'll love the clarity and brilliance of the Perdix AI, whether underwater or on land.

The large display is also impressive for offering vital information at a glance.

The Teric is fashion-forward for multi-purpose use and all-day wear.

It allows for optimal customization, boasts wireless charging similar to Samsung smartphones, and more.

If you are on the hunt for a more modernized dive computer with many features, the Teric is ideal.

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