Shearwater Research Perdix 2 Scuba Diving Computer Review: Stores 1,000 Hours of Dive Logs

Where the Perdix 2 Fits

Shearwater Research Perdix 2 monitors dives to a depth of 850′ (260m) for technical divers requiring high-pressure endurance.

Operating with 100 hours of battery life on Saft LS14500 batteries means a diver can complete multiple long-duration excursions without worrying about power failure. This endurance allows for extended surface intervals and repeated dives on a single charge.

The Shearwater Research Perdix 2 achieves this runtime, paired with an aluminosilicate glass lens for durability. The 2.2″ LCD screen provides a high-density 320×240 display to track these long-duration dives.

We evaluated 15 scuba diving computers and selected this model for a full review because it is one of the most-rated products that pass screening, with 35 buyer ratings. This review is for divers who prioritize long-term reliability and battery endurance. Our comparison is based on a data-driven analysis of specifications and manufacturer-provided values.

The Short Answer on the Perdix 2

Best for: you need a dive computer capable of reaching 260m for deep technical diving or high-depth freediving.

The Shearwater Perdix 2 is a reliable choice for these requirements at the $1110 mark.

• Pro: The 260m depth rating allows for deep technical dives and freediving sessions.
• Pro: It supports up to 100 hours of battery life when using Saft LS14500 batteries.
• Pro: The device stores approximately 1,000 hours of dive logs for long-term tracking.
• Con: The 320×240 resolution is lower than many modern high-definition displays.
• Con: Battery life drops to 40 hours when using standard AA Alkaline batteries, which limits long-duration expeditions.

Don’t buy this if: you require a battery life exceeding 100 hours or a higher display resolution than 320×240.

Price assessment: The $1110 price is a premium investment for the specialized depth capabilities and gas support provided.

Divers who prefer freediving may prefer to see our spec breakdown of the SEAC Driver.

You can also compare navigation features by viewing our comparison of the best scuba diving computer with gps.

The Specifications That Matter

The 260m Maximum Operating Depth measures the deepest point the Perdix 2 can safely function.

Performance: What the Specs Deliver

Extended Battery Life Options

The Perdix 2 supports up to 100 hours of continuous power supply when used with Saft LS14500 batteries. This duration allows you to go on a long multi-day trip without needing to swap power sources between dives, as it covers the 20-hour requirement for a multi-sport triathlon or a full day of snorkeling with significant remaining capacity.

You can choose different power configurations depending on your specific needs, as the device also supports Lithium 1.5V batteries for up to 60 hours or standard AA Alkaline batteries for up to 40 hours. While the 100-hour capacity provides the most endurance, the 40-hour limit with standard AA batteries is still sufficient to complete a full day of snorkeling or a 20-hour triathlon event.

High Capacity Log Storage

The Perdix 2 stores approximately 1,000 hours of dive logs, which provides a substantial history of your underwater activity. This capacity allows you to keep a long-term record of your progress over many months or years of diving without needing to clear old data to make room for new entries.

Having a high log capacity means you can track your progress over hundreds of individual dives. Because the storage is based on a 1,000-hour limit, you can focus on your diving goals rather than managing the device’s internal memory.

Maximum operating depth of 260m for this underwater computer

The Perdix 2 has a depth rating of 850 feet (260m), which is the maximum depth the device can safely function. This rating is sufficient for you to perform a deep technical dive or a deep freediving session, as both of those activities require a minimum of 260m or less.

Because the device is rated for 260m, it also covers requirements for monitoring a nitrox dive at 40m or a recreational trip at 30m. This depth capability ensures the hardware remains functional at the specific pressures encountered in those environments.

Which Jobs the Perdix 2 Handles, Worked Out From Its Specs

The Perdix 2 against the jobs buyers ask about, worked out from its listed maximum operating depth and battery life and a typical need for each job.

If you are looking for a more budget-friendly option, see our full review of the Cressi Goa.

How the Perdix 2 Compares to Other Dive Computers

If you need a scuba diving computer that can handle a deep technical dive, the Perdix 2 provides a maximum operating depth of 260m. This depth rating allows you to perform deep freediving sessions or monitor nitrox dives that require more than 40m of depth. Because it supports 5 Open Circuit and 5 Closed Circuit gases, you can use it for complex gas mixes.

The Perdix 2 features a 2.2″ LCD screen with a 320×240 resolution and an aluminosilicate glass lens. It weighs 190 grams and measures 1.5 x 3.19 x 2.8 inches. The device stores approximately 1,000 hours of dive logs for your review.

Battery life on the Perdix 2 depends on your power source. You can get up to 100 hours of runtime with Saft LS14500 batteries, which is enough to stay on the surface for a full day of snorkeling or complete a 20-hour multi-sport triathlon. Using Lithium 1.5V batteries provides up to 60 hours, while standard AA Alkaline batteries offer a 40-hour limit.

Comparison to Similar Scuba Diving Computers

The Perdix 2 offers the largest battery life of the compared models when using the highest-capacity power source.

• The Perdix 2 is $410.01 more expensive than the Garmin Descent Mk2i Titanium with Black Band.
• The Garmin Descent Mk2S 010-02403-00 is $460.01 cheaper than the Perdix 2.
• The Shearwater Research Teric Color Wrist Dive Computer is $530 cheaper than the Perdix 2.
• The Perdix 2 holds a 5.0 average from 35 buyer ratings, which is the highest rating in our comparison.
• The Garmin Descent Mk2S 010-02403-00 provides a 30-hour dive mode battery life, which is smaller than the 100 hours provided by the Perdix 2.

If you prefer a more affordable option with a color display, you should consider the Shearwater Research Teric Color Wrist Dive Computer instead.

Where This Price Sits

The Perdix 2 sits $174 above the $936 average for the similar scuba diving computer products we compared. At the $1110 price point, you receive a device with a 260m depth rating and an aluminosilicate glass lens. You trade off the lower price points of entry-level units for a more robust construction and the ability to perform a deep technical dive at 260m. The Perdix 2 also supports 5 Open Circuit gases and 5 Closed Circuit gases, providing broader compatibility for different gas mixes than basic models.

How long will the battery actually last on standard batteries? The Perdix 2 provides up to 40 hours of runtime when using standard AA Alkaline batteries. This is the shortest power duration available for this model, compared to 60 hours with Lithium 1.5V or 100 hours with Saft LS14500. You should choose the Perdix 2 if you require a 260m depth rating and the specific gas support features while your budget allows for a price above the $936 average.

From Delivery to First Use with This Dive Computer

Getting Started with the Perdix 2

You must have the Saft LS14500 batteries or a Lithium 1.5V pack before the Perdix 2 can perform any functions.

1. Unpack the unit and verify the 190 Gram weight to ensure the package is complete.
2. Insert the chosen batteries into the housing to provide between 40 and 100 hours of power depending on the cell type.
3. Check the 320×240 resolution display for a clear backlight to confirm the unit is powered.
4. Verify the aluminosilicate glass lens is clear before beginning your first dive.

Warranty and Support: What to Check

Warranty coverage and support terms vary by seller and country.

• Confirm the 850′ (260m) depth rating is intact, as this is the maximum depth the device can safely function.
• Check the 320×240 resolution screen for any cracks, as the glass lens is a primary interface for your data.
• Verify the battery compartment seals to ensure they remain watertight for the 5 Open Circuit or 5 Closed Circuit gases you may monitor.

Test the device in a shallow pool to confirm the 2.2″ LCD screen responds to depth changes before you take it on a deep technical dive.

The Perdix 2: Remaining Questions

Can the Shearwater Research Shearwater Perdix 2 handle my specific gas mixes for technical diving?

Yes, the Shearwater Research Shearwater Perdix 2 supports 5 Open Circuit gases and 5 Closed Circuit gases for technical diving configurations. These gas types allow the Perdix 2 to track various mixtures used by technical divers to manage their gas supplies and decompression limits.

How much dive history can I keep on the Shearwater Research Shearwater Perdix 2 before it clears?

The Shearwater Research Shearwater Perdix 2 stores approximately 1,000 hours of dive logs. This capacity allows for extensive record-keeping over many dives before the internal memory requires clearing.

How deep can I go with the Perdix 2?

The Perdix 2 has a depth rating of 850′ (260m), which is sufficient for deep technical dives and freediving. Because this rating covers the maximum depth the device can safely function, you can plan dives well beyond the 30m recreational limit.

How long will the battery last on a long dive?

The Perdix 2 offers multiple power options, including up to 100 hours of runtime when using Saft LS14500 batteries. This duration ensures the device can power through a full day of surface snorkeling or extended multi-day expeditions without a power swap.

Is the Perdix 2 Right for You?

Who the Perdix 2 suits and the jobs it is the wrong choice for, listed below with the reason for each.

Where to Buy This Scuba Diving Computer

The Perdix 2 sat at $1110 in the listing data from November 2026; the price you see at checkout can differ.

Scuba diving computers are sold by the retailers below – we do not track which of them has the Perdix 2 in stock, so check availability and the current price with the retailer before making a trip.

• DiveInn (online only) — large online catalog for international and domestic brands
• Dick’s Sporting Goods (online and physical stores) — wide availability of mainstream brands and physical locations
• REI (online and physical stores) — reliable inventory of major brands and in-store expert advice
• Amazon (online only) — massive selection and easy comparison of consumer models
• ScubaGear (online only) — specialist retailer with deep technical inventory
• Triton Sports (online and physical stores) — specialist retailer with expert staff and technical gear

Final Verdict on the Perdix 2

If you need a dive computer capable of handling a deep technical dive or a long-distance multi-sport triathlon, the Shearwater Perdix 2 is a viable option. You can find it for around $1110.

The Perdix 2 features a depth rating of 850′ (260m), which provides the necessary range for deep freediving sessions and nitrox dives. It also supports 5 Open Circuit and 5 Closed Circuit gases, allowing for versatile gas management in different diving environments.

Battery life varies depending on the power source. The device provides up to 100 hours of runtime with Saft LS14500 batteries, which is sufficient to stay on the surface for a full day of snorkeling or power through a 20-hour triathlon. Using Lithium 1.5V batteries provides 60 hours, while standard AA Alkaline batteries offer 40 hours of power.

The 2.2″ LCD screen has a 320×240 resolution, providing a clear display for monitoring dive data. It also stores approximately 1,000 hours of dive logs for tracking your underwater history.

The Perdix 2 holds a 5.0 average across 35 ratings, supporting its position as a high-performing unit in the scuba diving computer category. Its 260m maximum operating depth allows you to reach depths that many recreational computers cannot access.

You should choose the Shearwater Perdix 2 if you require a high-depth rating and the ability to switch between multiple gas mixes for technical diving. The unit is available for around $1110.

The 850′ (260m) depth rating serves as the strongest data point for this model, providing a significant range for deep-water exploration.

Skip it if: You only need a basic recreational computer for shallow dives, as the 260m depth rating and multi-gas support represent a higher level of capability than a beginner requires.