Dive Computers With Surface Interval Timers

Garmin Descent Mk3i 51mm Dive Computer Smartwatch

57 reviews

SKU: GRMDMK51TB

^$1799.99

+ wishlist

In Stock

DESCRIPTION

A dive-first smartwatch with enhanced sonar technology, GPS, and dive readiness tool, synced with Garmin Dive app.

Shearwater Perdix 2 Ti Dive Computer with Transmitter

3 reviews

SKU: SWTTP2C

~~$1595~~ Save: $350 (22%)

^$1245

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In Stock

DESCRIPTION

A watch-style scuba dive computer with air integration, Bluetooth, and a user-replaceable battery.

Shearwater Perdix 2 Ti Dive Computer

2 reviews

SKU: SWTTP2BK

~~$1195~~ Save: $300 (25%)

^$895

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In Stock

DESCRIPTION

A durable titanium dive computer with replaceable battery, advanced features, and strong vibration alerts.

Aqualung i200C Wrist Computer

1 reviews

SKU: UDRI200CNAP

~~$470~~ Save: $245 (52%)

^$225

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In Stock

DESCRIPTION

A versatile scuba wrist computer with Bluetooth, multiple modes, and customizable nitrox mixes.

Garmin Descent Mk3i 51mm Dive Computer with T2 Transmitter, Carbon Gray DLC Titanium/Titanium Band

SKU: GRMDMK51TP

^$2299.98

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In Stock

DESCRIPTION

A durable, feature-rich dive computer with GPS, ABC sensors, and DiveView maps, paired with a reliable transmitter.

Garmin Descent Mk3 43mm Dive Computer Smartwatch

SKU: GRMDMK3FG

^$1199.99

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In Stock

DESCRIPTION

A dive-ready smartwatch with GPS, dive maps, and dive logs sync, designed for smaller wrists.

Garmin Descent Mk3i 43mm Dive Computer Smartwatch

SKU: GRMDMK43FG

^$1399.99

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In Stock

DESCRIPTION

A dive-first smartwatch with enhanced sonar technology, dive readiness tool, and GPS accuracy.

Garmin Descent Mk3i 43mm Dive Computer with T2 Transmitter, Carbon Gray DLC Titanium/Black Silicone Band

SKU: GRMDMK43B

^$1899.98

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In Stock

DESCRIPTION

A durable and feature-rich dive computer with a long-lasting battery life and superior positional accuracy.

Garmin Descent X30 Dive Computer

SKU: GRMDX30

~~$749.99~~ Save: $200 (27%)

^$549.99

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In Stock

DESCRIPTION

A rugged dive computer with a vibrant color display, recycled plastic housing, and advanced multi-gas support.

Mares QUAD 2 Dive Computer, Orange ~Open Box

SKU: MRSQCOROB

~~$519.95~~ Save: $220.00 (42%)

^$299.95

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In Stock

DESCRIPTION

An advanced orange digital dive computer with Bluetooth, rubber band, audible alarms, and multi-gas compatibility.

Garmin Descent Mk3i 51mm Dive Computer with T2 Transmitter, Silver PVD Titanium/Black Silicone Band

SKU: GRMDMK51SP

^$2099.98

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In Stock

DESCRIPTION

A rugged silver and black titanium dive computer with AMOLED display, air integration, and diver-to-diver messaging.

Shearwater Teric Dive Computer with GPS Transmitter, Black

SKU: SWTTDCBGC

^$1594

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In Stock

DESCRIPTION

A high-resolution black dive computer with GPS transmitter, featuring AMOLED display, sapphire glass, and wireless connectivity.

Shearwater Teric Dive Computer with GPS Transmitter, Silver

SKU: SWTTDCSGC

^$1594

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In Stock

DESCRIPTION

A high-resolution silver dive computer with GPS transmitter, AMOLED display, sapphire glass, and wireless connectivity.

Mares QUAD 2 Dive Computer

SKU: MRSDCQOR

~~$519.95~~ Save: $100.95 (19%)

^$419

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In Stock

DESCRIPTION

A digital dive computer with a crystal-clear display, Bluetooth, and multi-gas compatibility for precision diving.

Shearwater Peregrine TX Wrist Dive Computer with GPS Transmitter

SKU: SWTPDCTXGC

~~$1205~~ Save: $50 (4%)

^$1155

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In Stock

DESCRIPTION

A rugged, full-color wrist dive computer with GPS transmitter, air integration, wireless charging, and advanced navigation.

Garmin Descent X50i Dive Computer with inReach Mini 3 Plus SOS Satellite Communicator and Dive Case

SKU: GRMDX50IK

^$2099.97

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In Stock

DESCRIPTION

A rugged dive computer and satellite communicator set with vibrant color displays, air integration, and water-resistant dive case.

Garmin Descent Mk3i 51mm Dive Computer with inReach Mini 3 Plus SOS Satellite Communicator and Dive Case

SKU: GRMDMK51K

^$2199.97

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In Stock

DESCRIPTION

An advanced dive computer and SOS communicator set with AMOLED display, sapphire lens, and rugged underwater case.

Seac Apnea Freediving Computer

SKU: SECACHBR

~~$289~~ Save: $57.80 (20%)

^$231.20

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In Stock

DESCRIPTION

A customizable freediving computer with real-time data tracking, safety features, and memory for up to 500 dives.

Cressi Leonardo 2.0 Wrist Computer

89 reviews

SKU: CSBLWBL

~~$249.95~~ Save: $25 (10%)

^$224.95

+ wishlist

In Stock

DESCRIPTION

A compact and travel-friendly wrist computer with a simple design, large numerical displays, and distinct audible alarms.

Pros

Useful safety features
Affordable and good value for money
Easy to use and program
Reliable and accurate
Clear and easy-to-read display

Suunto Zoop Novo Wrist Computer

72 reviews

SKU: SQTZPNLY

~~$299~~ Save: $20 (7%)

^$279

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In Stock

DESCRIPTION

A wrist-mounted dive computer with a backlit display, five modes, and user-replaceable battery.

Pros

Feature-packed and versatile
Affordable and good value for money
Easy to use and operate
Clear and easy-to-read display
Reliable and durable

Suunto EON Core Wrist Computer

27 reviews

SKU: SQTECBK

~~$699~~ Save: $104 (15%)

^$595

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In Stock

DESCRIPTION

A lightweight, compact wrist computer with a large color display and versatile diving modes.

Cressi Giotto Wrist Computer

24 reviews

SKU: CSBGICBKWH

~~$349.95~~ Save: $50 (14%)

^$299.95

+ wishlist

In Stock

DESCRIPTION

A compact, travel-friendly dive computer with a high-definition screen, audible alarms, and RGBM algorithm.

Garmin Descent G1

15 reviews

SKU: GRMDG1SG

~~$549.99~~ Save: $100 (18%)

^$449.99

+ wishlist

In Stock

DESCRIPTION

A watch-style dive computer with health monitoring, Garmin Pay, and reviewable dives.

Aqualung i300C Wrist Computer

11 reviews

SKU: UDRI3CWGR

^$399

+ wishlist

In Stock

DESCRIPTION

A rugged wrist computer with user-changeable battery, backlit display, and updatable software for versatile diving.

Suunto D5 Wrist Computer with USB Cable

11 reviews

SKU: SQTD5WB

~~$499~~ Save: $150.01 (30%)

^$348.99

+ wishlist

In Stock

DESCRIPTION

A versatile dive computer with a stainless-steel bezel, full-color display, and multiple dive modes.

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Dive Computers With Surface Interval Timers

As the weather warms and dive season stretches from early summer into the crisp promise of fall, divers of every experience level find themselves drawn to the water’s edge, eager to explore reefs, shipwrecks, and the mysteries that lie below the surface. For those planning multiple dives in a single day or over a weekend getaway, selecting a dive computer with a reliable surface interval timer becomes more than a convenience—it’s an essential safety feature. Surface interval timers track the exact time spent out of the water between dives, allowing your dive computer to accurately calculate your residual nitrogen load. This is critical for planning repetitive dives, as it helps prevent decompression sickness by ensuring you stay within safe limits. Whether you’re a seasoned technical diver preparing for complex, multi-level profiles or a recreational diver enjoying a series of shallow reef dives, a surface interval timer is one of those features you quickly come to rely on. Many instructors and divemasters will emphasize its importance during training, as accurate interval tracking is fundamental for safe dive planning and post-dive logging.

It’s important that i do not turn off a dive computer between dives because the divemaster may object, because i can’t recall the dive information for logging. It would lose memory of the previous dive and not calculate repetitive dives correctly. It won’t come back on, or it may take a long time to power up. Doing so is hard on the batteries and may cause the computer to fail. This is especially true with modern computers that track “no-fly” time—an indicator that tells you when it’s safe to board a plane after diving, based on your recent dive history and surface intervals. Forgetting to keep your computer powered on could mean losing critical data, which is why most divers leave their computers running between dives, letting the surface interval timer do its work. For those who enjoy logging their dives in detail or sharing their underwater adventures with friends, this uninterrupted tracking is invaluable. The surface interval timer works quietly in the background, updating your tissue saturation graphs and recalculating your limits, so you can focus on the experience rather than the math.

Dive computers with surface interval timers make an excellent gift for anyone passionate about scuba, from newly certified divers eager to build their skills to advanced explorers who need precise data for technical profiles. Watch-style computers are especially popular for their everyday wearability and versatility, while larger console models offer extra visibility and tactile controls, ideal for cold-water diving or use with gloves. Features like customizable conservatism settings, digital compasses, and air integration—where your tank pressure is displayed right on the computer—add even more value for divers who want a complete picture of their underwater environment. Some computers, such as the Shearwater Teric, are praised for their intuitive displays and robust construction, making them favorites among both recreational and technical divers. If you’re interested in options that blend stopwatch functionality with advanced interval tracking, you might also explore our curated list of Stopwatch Dive Computers for even more choices tailored to your diving style. As you plan your next adventure—whether it’s a tropical getaway, a local lake, or a liveaboard expedition—having a dive computer with a dependable surface interval timer ensures you can dive with confidence, safety, and the freedom to make the most of every moment below and above the waves.