Comprehensive Review: Shearwater Research Dive Computer


Shearwater Research Inc. was founded in 2004 by Bruce Partridge, its CEO, who had a unique overlap in his background with computer science and advanced technical diving that gave him a new perspective for diving equipment.

This led him to design an intuitive menu that would be easy to use while underwater, which became one of the company’s first major focuses. Partridge was experienced with open-circuit technical diving and rebreathing which informed his understanding of a diver’s needs during a dive and the design of the company’s products.

Shearwater Research is known for its easy-to-use and minimal interfaces that make its equipment user friendly and quickly navigable during a dive. It should be noted that the company is also involved with the scientific diving community, and its representatives attend global conferences in order to support research organizations with a focus on decompression theory.

If you’re on the lookout for a new dive computer, set a maximum amount for yourself that you would be comfortable paying for the device.

The prices for dive computers run the gamut, so be sure to know the range of computer prices that you will be able to comfortably afford.

Product FAQs

What Is This Type of Product?

What Does This Type of Product Do?

How Does It Work?

Where Can You Buy This Type of Product?

How We Reviewed

We understand that the purchase of a new dive computer will not likely be an impulse purchase, and because of this we want to offer honest and accurate information when it comes to these products. It is also important to us that you understand our review process.

First, we research these products down to their most minute details, and then we compare them to other products offered by Shearwater Research. Finally, we review feedback from customers who have already purchased the products in order to gain a clear understanding of the general consensus about it.

Overall Price Range of This Product

Depending on the manufacturer, a dive computer can cost anywhere between $500 and $2,000.

How It Compares

Teric Wrist Dive Computer with Transmitter

Shearwater Teric Wrist Computer with Transmitter - Black
  • Nitrox Trimix decompression dive computer in wrist-watch form factor
  • Bühlmann ZHL-16c algorithm with configurable Gradient Factors
  • Supports optional wireless tank pressure transmitters

Key Features

Shearwater Research’s Teric is both a timepiece as well as a dive computer with a high-resolution, full-color, AMOLED display.

The controls are intuitive and compact on the dive computer, and it offers many different customization options. While also working as an everyday watch with multiple faces, it also has air integration that can connect to two transmitters. 

The Teric also features a new freediving mode with both haptic and audible alarms that can be configured for time and depth or can be disabled. It also has configurable sample rates as well as indicators for ascent and descent rate that have been improved over past models.



  • Not a cost-effective dive computer


The Teric can be purchased for $1,500.00.


All of Shearwater’s devices come with a two-year warranty.

Perdix AI

Key Features

Perdix AI is an air integrated dive computer which gives you all of the features of Shearwater’s Perdix. The large screen can be easily read and displays the pressure in the tank along with the remainder of your gas time.

It has the ability to connect with two transmitters, and the device is powered with AA batteries that let it function for up to 40 hours on a single battery cycle. The Perdix AI also has a variety of different diving modes and is even 30 percent smaller than the Petrel (reviewed below).

Like the Teric, the Perdix AI also has a simple and intuitive interface for quick access to information.

Shearwater Research Perdix-AI Dive Computer
  • Wireless Tank Pressure Integration - Transmitter not included
  • 5 open-circuit gas switch presets
  • B�Ã�ƒ�Â�¼hlmann ZHL-16C with Gradient Factors


  • Bluetooth compatible
  • Language preference customizability
  • 2.2-inch display


  • High asking price


The Perdix AI can be purchased for $995.00.


All Shearwater Research products include a two-year warranty.

Petrel 2

Shearwater Research Petrel 2 SA Dive Computer (V37)
  • User Replaceable AA Battery
  • Air, Nitrox, Trimix capable
  • 3 axis, tilt compensated, digital compass

Key Features

The Petrel 2 SA features rugged construction and has had its reliability affirmed by divers around the world. The Petrel 2 SA has multiple diving modes such as OC Recreational, OC Technical, CC/BO and Gauge, and as with Shearwater’s other products the display is large and legible with an intuitive and simple control scheme.

The entire dive computer runs on a single AA battery, and the device includes a digital compass with a three-axis digital compass. You can also take control of all of the data that you record with the Petrel 2 SA on your personal computer. Analyze your decompression profile, temperature and other data sets. ​

ith Bluetooth all of your data is transferred quickly, and you can select only the information that you would like displayed.


  • 10 different languages
  • Sturdy
  • Single battery powers the entire device


  • High asking price


The Shearwater Research Petrel 2 SA can be purchased for $849.00.


All Shearwater Research products include a two-year warranty.


Key Features

The NERD 2 is a remote display for scuba divers and includes a Micro LCD display. It also includes a new universal mount that is capable of operating with most regulators and many rebreather loops. Like with the other Shearwater Research products, the two-button interface makes an appearance so you know that navigation will be simple.

Additionally, the NERD 2 has a dive log that holds 1,000 hours’ worth of data and it is powered by a rechargeable battery. It should be noted that a mount is required in order to keep the NERD 2 in its proper position, and it is packaged with options for either an open-circuit or a closed-circuit rebreather.

As with the other Shearwater devices, there are multiple dive modes like external monitoring, digital compass, and OC recreational.

Shearwater Nerd 2 Dive Computer
  • The NERD 2 connects to a charging clip which snaps on the back of the computer. The charge clip is splash proof.
  • Rechargable Battery
  • Refined Compact Design


  • Two-button interface
  • Rechargeable battery
  • Displays your tank’s pressure


  • High asking price


The NERD 2 can be purchased for Price not available.


All of Shearwater Research’s products include a two-year warranty.

What To Look For

For those who are experienced divers and have a need for an advanced and technical dive computer, there may not be a better choice than Shearwater Research. The company has the scientific background to back its products, but if you are interested in continuing your search for a dive computer, following these tips will help to keep your investment a painless purchase.

  • Set a maximum amount for yourself that you would be comfortable paying for a dive computer. The prices for dive computers run the gamut, so be sure to know what range of computers that you will be able to comfortably afford. This can also help to begin narrowing your choices until you find the best dive computer for you.
  • Find a dive computer with features that you need in your dives, and continue to search for other computers that have those same features. By this same token, be on the lookout for models that have features that you are not interested in or do not believe you will ever use or need. This will help you to continue narrowing down the different dive computers as well as keep your cost low.
  • Search for reviews from customers who have already purchased the dive computer. Looking at feedback from other divers can be a great way to assess the quality of a dive computer. Be sure to read both positive and negative reviews in order to gain a well-balanced view of the product. Additionally, it is worth noting that low-rated products are typically red flags for poor-quality products.

The Verdict

After a thorough review, we found there are many good things to say about any Shearwater Research dive computer. The construction is solid and built from high-quality materials that will last you for dive after dive, and the features that these computers are packed with would be a highlight for any technical diver. Additionally, the Teric is a robust dive computer that is disguised as your average timepiece with customizable faces.

Any diver would also be pleased to know the company’s background and involvement with decompression studies as well, which makes the brand have a bit more of a reputable edge. The ability to transfer all of your watch’s data to a personal computer is useful for many divers as well, whether it is for recreational or technical purposes.

The only real disadvantage to any Shearwater Research dive computer is the price as it may fall out of the price range for some divers, but the price is not unreasonable as all of the company’s products are premium computers for divers.

Shearwater has perfected a two-button interface for its dive computers that is as simple as it is innovative; whether you’ve used it one or 100 times, a Shearwater device is easily navigable to find all of the information that you need from your dive. 

While those who aren’t in need of an advanced dive computer may be better off looking elsewhere, the power and quality of build for Shearwater’s dive computers make them well worth the price tag.

Last update on 2021-10-17 at 18:53 / Affiliate links / Images from Amazon Product Advertising API


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