Suunto Eon Core Dive Computer

Dive computers are wearable gear used to display essential information vital to a diver’s safety. For example, water depth and the amount of time you’ve been submerged. An AI dive computer is also a must for safe diving practices. Suunto Eon Core is not behind it!

Suunto Eon Core Full Review
Suunto Eon Core Full Review

Here’s an example: if you’re diving in 20 feet (6 meters) of water and surface after one hour, your dive computer should automatically calculate that your remaining bottom time is approximately 10 minutes based on an average ascent rate. This can help avoid situations where divers run out of air during their dives by providing them with maximum dive times based on their pre-dive calculations or current environmental conditions such as weather or currents which may affect their ability to return safely from deeper depths than expected (especially when using air).

Features & Specs

  • High-contrast color screen with large numbers.
  • graphical and prominent view styles
  • User-updatable software
  • Wireless tank pressure readings
  • Supports Gauge, Air, Nitrox , Trimix and CCR (fixed point) modes
  • ‎154 Grams weight


  • Easy to use
  • Excellent build quality
  • 5 Modes
  • No-decompression dive planner
  • 3D digital compass
  • Comes with a transmitter & USB
  • 10-20h battery life
  • ‎Lightweight


  • Expensive
  • Limited to 80-meter depth

Suunto Eon Core Review

The Suunto Eon Core is a wrist-watch style that features four buttons, a large LCD display and an easy-to-read digital display. Its profile is slim, at .6 inches deep by 1.7 inches wide and 2.1 inches tall. The Eon Core also has two modes of operation: surface mode for general use and dive mode for diving with nitrox or trimix gases.

It can be used to track up to 20 dives at a time; this makes it well-suited for recreational divers who want to remember their favorite sites as well as technical divers who often conduct multiple dives in one day or trip.

User Friendly

The Suunto EON Core is user-friendly that allows you to easily set up and use the device. It has an intuitive interface, which makes it simple to learn and quick to set up. The large buttons are also easy to operate.

The display is clear and easy to read as well as being backlit for low light conditions in case you happen to be using this during night dives.

It’s easy to navigate through menus and settings on this computer for both new divers or those who have had experience with other computers before so if you just want something simple but efficient then this may be the one for you!

Build Quality

The build quality is excellent. It has a rugged, durable design that’s meant to withstand some abuse while diving. This Air Integrated dive computer is water resistant up to 300 feet (100 meters), giving you plenty of freedom when you go diving and don’t have to worry about damaging it if your wetsuit sleeve rubs against it or if you accidentally drop it in the water. In addition, it has an IP67 rating which means it’s completely waterproof and dustproof as well as being able to withstand temporary exposure to water in any conditions without any internal damage caused by moisture ingress.

It comes with a stainless steel bezel ring around the LCD display that gives this dive watch its premium look and feel — although this feature does make gripping it harder during underwater activities due to its slippery surface! The battery compartment cover at 3 O’Clock uses 4 strong magnets which keep this cover closed firmly even when under pressure from an over-tightened strap (I’ve had my share of torn straps).

Suunto Eon Core Modes

The Eon Core has five modes: Air, Nitrox, Gauge, Freedive and Free Diving. The air mode is for recreational diving in the air (21% oxygen). The nitrox mode is for recreational diving with nitrox mixes of 21% – 50%. If you’re not sure what kind of air or nitrox mix to use, it will guide you based on your profile information and preference settings. In gauge mode, the Eon Core displays depth as well as time remaining at that depth before an ascent should begin due to nitrogen toxicity risk. Freedive mode allows you to keep track of your free dives as well as calculate TTV (total time underwater). Finally, free diving lets you monitor apnea breath counts or total number of breaths taken during a dive session—which can be helpful if someone wants to know how many breaths they took while freediving

Setting Options

The Suunto eon core has a variety of setting options such as multiple languages (English, Spanish, French), and temperature units options F or C; you can choose whether you want to see barometric pressure in hPa or in Millibar with the option for both; there are also several other settings such as whether you would like to see your dive time remaining on the screen at all times or only after you press the button for it which will increase battery life considerably if turned off so make sure this works for your needs before purchasing one of these! This can be done easily once installed by pressing Control D followed by Control A

The housing

The housing of the unit is made from high impact plastic that has been treated with water repellent coating, while the strap is made from silicone rubber and comes equipped with a stainless steel buckle. It has a diameter of 2.1”/ 5.3 cm and is 1.2”/ 3.0 cm thick (the same as Suunto D4i Novo). This means that it will fit under most wetsuits without problem or bulkiness being an issue for divers who want to use their dive computer as much as possible before getting in the water or after exiting it, as well as when they’re on land during training sessions if necessary (for example because they forgot their backup batteries at home).

Information on display

This unit provides information on tank pressure, no stop time, ascent rate and decompression status as well as remaining bottom time, adjustable water temperature reading, adjustable dive log memory and customizable user settings through its 10 dive modes which include Air, Nitrox, Freedive and Gauge modes among others.

The Suunto EON Core has a bright color display with an easy to read 2-line display that shows all important data at a glance: depth (with altitude adjustment), current dive time (total/remaining), average depth during the dive and gas pressure. The screen is also equipped with backlight for easy viewing in low light conditions. On top of that it’s weather resistant so you can use it in any condition!

Suunto Eon Core Dive Computer’s Warranty

You can get your EON Core dive computer replaced for any reason, up to two years after purchase. Suunto covers the cost of shipping back to them and then sends a new unit once they receive your old one.

If you are unsatisfied with the EON Core, you can return it within 30 days from purchasing it for a full refund minus 15% restocking fee. The 15% restocking fee covers the cost of inspecting, testing and repackaging your EON Core before sending out a new one if necessary.


Overall, we think the Suunto eon core is an excellent choice for those looking for a dive computer that will keep them safe while exploring underwater. While it may not be as advanced as other models on the market today, it is affordable and easy to use.

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