Shearwater Perdix 2 Review

Shearwater Perdix 2 Review: 2024

Brian Young  ●   Min read
The Shearwater Perdix 2 is a versatile dive computer that can accompany you on your scuba diving adventure, whether you’re a casual recreational diver or looking for a dive computer for more technical diving.

In this review, we will look at some of the features that make it the best dive computer in 2023. As well as give it our rating and what we liked and didn’t like about it.

Let's dive in!
Shearwater Perdix 2 TI

Shearwater Perdix 2

Shearwater Perdix 2 Dive Computer TI and TI Black

Our Overall Score:


Manufacturer: Shearwater Research

Disclaimer: This review is based on personal experiences and opinions of the author and may differ from others.


The Perdix  2 features a rock-solid durable design, nothing feels cheap. A slim profile makes it very streamlined and hardly noticeable on your wrist while diving.  


It is a versatile dive computer that can handle any dive situation from recreational diving to more technical Diving. It also has a very responsive digital compass. 

ease of use

A simple two-button interface with clear menu prompts makes customizing and using the computer very easy. A bright color display makes reading dive information easy.


It is not cheap, but is priced well with other dive computers in its category. However, for the price, we were expecting a rechargeable battery. 

The Shearwater Perdix 2 is a compelling dive computer that gives you full customization over everything, from the vivid color screen to your gradient factor. While being very powerful, it is surprisingly very simple to use.  This makes it a favorite for both serious recreational and technical divers who would like to get the most from their diving.

Where to buy:

Shearwater Perdix 2 Review

Shearwater Perdix 2

Find the best deal for the Shearwater Perdix 2  at these recommend retailers:

Everything You Need To Know about the Shearwater Perdix 2 Dive Computer

The Perdix 2 is the upgraded version of the popular Perdix AI dive computer. It has been redesigned to be more robust with a tougher case, Titanium Bezel, and Titanium Piezo touch buttons.  New aluminosilicate glass screen also increased clarity, and improved damage and scratch resistance.

It has also been updated with new features including strong vibration customizable alerts, and the ability to now pair with 4 Shearwater Transmitters. Apart from this, nothing much has changed with the computer. It is still easy to use whether you are a beginner or a technical diver, and still has a large, clear, customizable screen and simple user interface divers have come to love.  The Perdix 2 is also available in two versions, the TI and TI Black version.

Now, let’s look at some of the features that make this computer stand out from others on the market.

Below are some of the feature we think makes this dive computer stand out:

Shearwater Perdix AI Dive Modes

Image from

4 Dive Modes

The Shearwater Predix 2 features four different dive modes, allowing the dive computer to be used in almost any dive scenario you can imagine.

  • In Recreational Mode, it can be used for diving with standard Air or Enriched Nitrox with up to 3 gas mixes for serious recreational divers.
  • It also has an Open Circuit Technical Mode that will make full decompression calculations for trimix diving.
  • And, a Closed Circuit Mode with a constant po2 for diving with rebreathers.
  • It also has a Gauge Mode that will take time and depth, act as a resettable stopwatch, and allow you to see tank pressure information, but it will not make any decompression calculations.
Shearwater Perdix 2 TI

Vibrant Color Display

The Shearwater Perdix 2 features a 2.2-inch full-color LCD that is bright, crisp, and easy to read in any position.  The brightness of the screen can also be set to automatically adjust to variable light conditions.  It also features large easy-to-read digits and color-coded alarms on the display allowing you to monitor safety information quickly. 

Sherwater Perdix AI Dive Computer

User Customizable Display

Another excellent feature of the Perdix 2 is that it only shows the essential diving information relevant to the dive mode you’re in. This ensures no redundant information is displayed, keeping the display neat.  You also have the option to adjust certain rows of information to further customize it to your liking.


Shearwater Teric Transmitter

Optional Wireless Air Integration 

The optional wireless air integration allows you to monitor your current tank pressure as well as your gas time remaining. It is also now able to connect to 4 Shearwater Wireless Transmitters, which is great for advanced recreational diving or technical diving. 


Shearwater Perdix AI Slim

Slim, Low-Profile Design

One of the main feedback from customers about the Petrel is its size, and Shearwater Research listened. They designed the Perdix to be 30% smaller in volume than the Petrel. This makes the computer more streamlined and lighter on your wrist.


Shearwater Perdix AI Compass

Digital Compass

Another feature that makes the Perdix stand out from others on the market, is its highly responsive digital compass that’s simple to read, use, and very accurate. It’s also 3 axes tilt-compensated, meaning you don’t need to have to the compass level to get an accurate reading. It can easily be accessed in all dive modes by pressing the right button once.


Perdix 2 Vibration Alert Warning settings

Vibration Alert Warning

One of the new features of the Perdix 2 compared to the previous version is that it now features a strong vibration alert warning. This allows the dive computer to get your attention without alerting the entire dive site with annoying beeps. 


Perdix AI Dive Computer Battery

User-Replaceable Battery

The Perdix AI is also equipped with a user-replaceable battery. It is very simple to change and uses a standard AA battery that can be found worldwide. The battery plug can be unscrewed using a coin and has 2 o-ring for double security against flooding the battery compartment. You can expect to get about 40 hours of battery life with air integration enabled.  The transmitter also uses a not-so-common 3V Cr2 Lithium battery, so you might want to pack a few extras when on a dive holiday. 


Perdix AI Cloud

Bluetooth Smart Technology 

You can easily upload your dive log to your PC, Mac, Phone, or smart device using Bluetooth Smart Technology via the Shearwater Cloud app. The App is fully customizable, easy to use, and full of useful information. It also provides a great way to download firmware updates for Shearwater. This ensures your dive computer keeps advancing as updates become available. 


Shearwater Perdix 2: Manufacturers Specification

Dive Computer Style

Wrist Mounted

Dive Modes

Recreation | Trimix | Rebreather | Gauge 


Buhlmann GF algorithm

Max Diving Depth

152m / 500ft

Display Type

Full color LED LCD

Display Size

5.59 cm / 2.2"

Air Integration

Yes, 2 Transmitters


3 axis, tilt compensated, digital compass

Dive Log Capacity

1000hrs (Sample rate of 10 seconds)

User Changeable Battery

Yes, AA Alkaline 

Battery Life

40 Hours 




0 to 99 percent

Trimix Mode

0 to 99 percent

Rebreather  Mode

CCR, Fixed Point

Number of Gases

5OC / 5CC

Shearwater Perdix 2 Review: 2024 1
Perdix AI Transmitter
Shearwater Perdix 2 Review: 2024 2

 Shearwater Perdix 2 Review: Our Rating

Overall Score


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 The Perdix  2 features a rock-solid durable design, nothing feels cheap. A slim profile makes it very streamlined and hardly noticeable on your wrist while diving.  


It is a versatile dive computer that can handle any dive situation from recreational diving to more technical Diving. It also has a very responsive digital compass.  

Ease of use

A simple two-button interface with clear menu prompts makes customizing and using the computer very easy. A bright color display makes reading dive information easy.


It is not cheap, but is priced well with other dive computers in its category. However, for the price, we were expecting a rechargeable battery. 

What We Like

The Shearwater Perdix 2 is a very compelling dive computer and there are many things that we liked. However, these are the features that stand out the most to us. 

Easy-to-Read Display  -The screen is easy to read and understand, even when packed full of dive information. The digits are large and can easily be read at a glance. 

Intuitive User Interface – Although it’s a powerful dive computer with more advanced features like trimix and closed circuit.  It is much easier to navigate, set up, and understand than many dive computers with more basic functions. This is because of a simple dynamic two-button user interface with hints displayed on the screen that will show what each button does.  On each menu screen, it will tell you what will happen if you push the right button and what will happen when push the left button. If you take your time and follow the on-screen instructions, you should get the hang of the computer very quickly.

Digital Compass – We also liked the very responsive digital compass, it simply works. We like that there are not a lot of complicated features. 

What We Don’t Like

We think the Shearwater Perdix AI is as solid as it gets. However, there are a few things we think need improvement. 

No Rechargeable Battery – There is no rechargeable battery. For the price, we were expecting this feature, like on the Suunto Eon Steel ,  Scubapro G2, or Shearwater Peregrine.  However, we cannot hold much grievance since it uses an AA battery that can easily be found worldwide and easy to change. 

No go-back button – There is no dedicated go-back button. One button is used to move to the next option and the other button is used to select. 

Price – It’s not cheap. If you’re you’re going to be doing only basic recreational diving, then you are going to pay for features you don’t need and will never use.  If you’d like a trim-down version of this computer for recreational diving we would recommend the Shearwater Peregrine. 

Who Should Buy the Perdix 2 Dive Computer?

The Shearwater Perdix is designed for the more serious recreational or technical divers. A wide range of dive modes and capabilities makes it a great choice if you are a diver who is looking for a dive computer to accompany you through your diving career.

However, this might be too much dive computer if you’re looking to do more simple recreational diving. If you are looking for a dive computer with the same intuitive layout as that of the Perdix but with more simplified recreational dive modes, you should check out the new Shearwater Peregrine. 

Related Dive Computer Reviews

Check out these other similar Dive Computer we reviewed.


Frequently Asked Questions

Which Decompression Model does Shearwater Perdix 2 use?

Shearwater Research Perdix AI uses the Bühlmann ZHL-16C decompression mode with Gradient Factors (GF).

You can also activate the VPM-B decompression mode by purchasing an unlock code. These decompression models are generally used by technical divers. 

What’s the difference between the Perdix 2 and the Shearwater Teric?

The Shearwater Teric is a watch-sized dive computer, whereas the Perdix 2 is a full-size wrist-mounted computer. The Teric is more expensive than the Perdix AI and includes a few additional features. 

These are some of the features not found on the Perdix 2:

  • Timepiece Mode
  • Free Diving mode
  • Rechargeable battery
  • Options for Haptic (Vibration) and Audible Alarms
  • 4 Button Menu System

What is the warranty policy for the Perdix 2?

The Perdix 2 has a 2-year warranty. Shearwater tracks the warranty by serial number and not by the original purchaser. So, if you buy a second-hand the warranty will still be effective once the period has not passed. 

The Bottom Line

The bottom line is the Shearwater Perdix 2 is an excellent dive computer with all the attractive features and high-tech capabilities you would expect from a top-of-the-line computer. 

While versatile and robust, its ability to work with any type of diving, effortless to read, and ease of use, make it a no-brainer to recommend this dive computer.

Still Looking For The Right Dive Computer?

Find the right dive computer for your diving needs by checking out our top 10 list of the best dive computers on the market today.

About the author

Brian has been a divemaster for the past 5 years. He is enthusiastic about sharing his love for scuba diving with others and does this by writing destination and product reviews, as well as tips and tricks he has learned throughout the year.

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