The Peregrine uses the well-proven Buhlmann ZHL-16C algorithm. Unlike most ZHL-16C instruments, it doesn’t have a deep-stops option, although it does usefully let you choose the depth of your shallowest deco level from either 3 or 6m. The Peregrine is aces in this regard, and for these tangible improvement, I am willing to forego the convenience of a watch-sized form factor (same as the Perdix).

In use, you can expect the Peregrine’s battery life to last ~30 hrs of dive time. That’ll get you through almost any dive liveaboard. It’s easy-to-charge, too, with an included wireless charging mat – but it also works with many regular 3rd-party Qi wireless chargers. Top 10 Dive Computers 2022 Shearwater Perdix – Best For Advanced The Perdix 2 is fully integrated with up to four transmitters. As with all dive computers, your Peregrine should be rinsed with freshwater after diving to prevent corrosion. Avoid using any chemicals or solvents as they could cause damage to some of the components. Even in murky, green, dark water with sediment floating around, the display was easy to read and the colors looked amazing!

Our Shearwater Peregrine review

Shearwater is excited to announce the launch of the Adventures Edition of the popular Peregrine Dive Computer, featuring two stunning colourways. Two contrasting Light and Dark Edition options draw inspiration from the vivid and diverse underwater worlds, embodying the spirit of adventure.

The Shearwater Peregrine uses the Bühlmann ZHL-16C decompression model that you can find in all Shearwater Research dive computers. It is a modified version using a modern gradient factors approach. I initially expected this to be fairly clunky, given my experience with other 2-button dive computers, but the interface is surprisingly intuitive. Do note that this feature is for experienced divers with an in-depth knowledge of decompression theory as well as their own personal risk tolerances and so I will advise not messing with it unless you are very sure you know what it does (hint: if you have to ask someone what settings to use here, you are not ready to use it).

Where to Buy

Divers can incorporate decompression stops and durations which differ from the original model to accommodate their dive plan better. The apps available for Apple and Android devices are all produced by third parties. Sometimes they approach us wanting to connect to our devices, and sometimes we approach them. When a third party wants to include us in their app, we give them the information they need to connect to our dive computers, but beyond that the look and feel of the application as well as its scope is up to the developers. For example, I felt it alert me that I was within 2min of entering deco (you can select the alert time) through both the wrist of my 7mm wetsuit and a 4mm compressed neoprene drysuit sleeve. The Bühlmann algorithm has been in use for more than three decades and is a proven and trusted model. Adding the adjustable gradient factors basically means the diver can set it to be as liberal or conservative as they wish. Shearwater provides a custom conservative option that allows the user to manually set the gradient factors, but it’s not recommended unless you really know what you’re doing. This was the easiest computer to set up I’ve ever tested. It comes factory-loaded with defaults you need to be aware of and might want to change, such as being programmed to the mid-level caution zone.

Even at its lowest setting, the Peregrine is not excessively liberal and so this actually is a setting that may work for a lot of divers, depending on their preferences. There are no parts inside the computer that are user-serviceable. Not even the battery should be changed by anyone other than an authorized dealer. However, Shearwater estimates the lifespan of its battery to be five years, depending on usage, so the temptation to change it yourself should be a rarity. Don’t try to open up your Peregrine to fix any problems yourself as your warranty will become invalid. Support for any third party app is up to the developers of that app. That being said, we are always happy to answer questions. Additionally, the software utility that communicated with the dive computer on Mac and PC are now more robust and reliable.The main downside is that you are limited to the mask it can connect to. The good news; is that Scubapro makes some excellent masks alongside their friendly dive computers, but that is something you need to bear in mind. However, what sets the Peregrine apart is the ability to customize the GFLow / GFHigh percentages, if you so desire and this is a fantastic feature and is absolutely amazing to find it in this price range. They essentially allow the user to alter the algorithm and change the acceptable levels of tissue load, and select different levels of algorithm conservatism. Customizable algorithm, full features (trimix, Open Circuit, Closed Circuit), built-in compass, air integration, ability to handle more gas mixes than you are ever likely to use (5 in total), user changeable battery, upgradable firmware and a fantastic, legible display, all in a sturdy housing that is designed for extreme use (this is certainly no dainty wrist jewellery). Perdix AI In short, the Shearwater Peregrine dive computer makes your dive time an absolute dream. Whether you do more recreational diving or tech diving, this computer will be your very best friend!