Review of the Aqualung i200C: The affordable connected dive watch.

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In the world of scuba diving, choosing your dive computer is a decision that involves much more than just a budget. It's a matter of trust, safety, and suitability for your diving style. Every diver, whether beginner or experienced, seeks the instrument that will accurately guide them underwater without ever letting them down. With this in mind, we are now taking a closer look at the Aqualung i200C, a watch-style computer that promises interesting versatility for a wide range of divers.

The appeal of dive computers in a watch format is undeniable. They offer discretion and practicality for everyday use that are attractive. However, it's essential not to be blinded by aesthetics. A dive computer should first and foremost be a reliable tool, whose ergonomics and readability should never be compromised, even under the most demanding conditions. The i200C presents itself as a solution that attempts to reconcile these two worlds: the elegance of a watch and the functional robustness of a decompression instrument. We will explore in detail whether this promise is fulfilled, by analyzing each aspect of its design and performance.

Overall score: 3.4/5

Algorithm & Milestones

The heart of any dive computer lies in its decompression algorithm. The i200C incorporates the Pelagic Z+ algorithm (a direct derivative of the Bühlmann ZHL-16C dissolved gas model), known for its reliability and ability to ensure the safety of recreational dive profiles. Its score of 4.0/5 reflects this algorithmic robustness. It offers the possibility to adjust conservatism, a crucial feature for divers who want to adapt their decompression profile to specific diving conditions or their physical state. The alarms, whether audible or visual via an LED indicator, are designed to be clear and immediately noticeable, even in noisy or low-visibility environments. While it does not offer free Gradient Factors, which could limit its appeal for advanced technical diving, it perfectly meets the requirements of recreational diving, where simplicity and safety are paramount. It is a wise choice for those seeking a reliable calculation base without unnecessary complexity.

Air & Multi-Gas

Gas management is a crucial factor for divers who want to explore beyond air. The i200C allows you to manage up to 2 different Nitrox gases, with compatibility extending up to 100% oxygen. This capability is particularly valuable for advanced Nitrox training, offering the flexibility needed to optimize decompression stops. Its score of 2.2/5 reflects this versatility for recreational and light technical diving. However, the lack of wireless air integration is a point to consider. For divers accustomed to having their tank pressure displayed directly on their computer, this represents a change in habit. This model does not support Trimix or rebreathers, positioning it clearly as a tool for recreational diving and initial forays into light technical diving, without claiming to be suitable for heavy technical diving applications.

Screen & Ergonomics

The ergonomics and readability of the screen are crucial underwater, where every piece of information must be accessible quickly and without ambiguity. The i200C is equipped with a monochrome segmented LCD, a choice that, while functional, offers less visual comfort compared to modern color displays. Its score of 2.7/5 highlights this limitation. Nevertheless, the presence of four physical buttons is a major advantage. This configuration greatly simplifies navigation through menus and adjustment of settings, especially Nitrox, even with thick gloves. This is a significant improvement over models with one or two buttons, which can be frustrating to use. The screen size, inherent to the watch format, requires some adaptation, but the clarity of the segments and the adjustable backlight partially compensate for this constraint, ensuring adequate readability in most conditions.

Battery Life & Power Source

The battery life of a dive computer is a major concern, especially during extended stays or cruises. The i200C runs on a CR2430 battery (replaceable), which is a standard replaceable battery. This feature, rated 3.8/5, is a significant advantage. The ability to change the battery yourself, without having to go to a specialized service center, provides invaluable peace of mind. Furthermore, the computer retains desaturation calculations in memory during battery replacement, thus avoiding any loss of crucial data. This design is intended for the practicality and safety of divers on trips, minimizing interruptions and logistical constraints.

Connectivity & App

In the digital age, connectivity has become an essential criterion for dive computer management. The i200C stands out with its native Bluetooth Smart chip, enabling seamless and reliable synchronization with the DiverLog+ app on iOS and Android smartphones. With a score of 4.1/5, it excels in this area. This integration facilitates the management of dive profiles, remote device settings, and the downloading of dive logs. The ability for users to update the embedded software is also a plus, ensuring that the computer always benefits from the latest improvements and corrections. This modern approach simplifies post-dive activities and device maintenance, making the user experience more enjoyable and efficient.

Compass & Instruments

Some divers appreciate having a compass integrated into their dive computer, while others prefer a separate instrument. The i200C, with a score of 3.1/5, chooses not to integrate a digital compass. This decision contributes to better battery life and a simpler design. It does offer a temperature sensor and four complete operating modes: Air, Nitrox, Depth Gauge, and Freediving. This versatility makes it suitable for various diving activities, even without an integrated compass. For divers who already use a separate compass or don't constantly need one, this absence will not be a major drawback. The focus is on the essential functions of decompression and dive profile management.

Robustness & Depth

Durability is an essential quality for diving equipment, which is subjected to demanding environments. The i200C is certified for an operational depth of 100 meters, with a score of 3.0/5. Its construction in plastic and polycarbonate is designed to withstand impacts and abrasion from the marine environment, while remaining lightweight on the wrist. This sporty and compact design makes it comfortable to wear every day, without sacrificing its ability to endure the stresses of diving. It is a computer designed to accompany divers on their adventures, whether occasional or regular, offering structural reliability that inspires confidence.

Prices & Customer Support

The price-to-quality ratio and the quality of after-sales service are key factors in choosing a dive computer. The i200C is priced at approximately €350, earning it a score of 4.0/5. This price is very reasonable for a watch-style computer with Bluetooth connectivity. Regarding after-sales service, Aqualung offers excellent support. Recent computers, often factory-sealed, facilitate standard exchanges in case of problems under warranty. The quality of the service will depend, as usual, on the efficiency of the local retailer, but the Aqualung network is generally well-established and responsive. This is an investment that offers good value, supported by reliable customer service.

The i200C is primarily designed for regular divers, whether they are Level 1 or Level 3 certified, who desire a versatile instrument in a watch format. It is particularly suitable for those planning to obtain their Nitrox certifications with oxygen decompression stops, thanks to its ability to manage two gas mixtures. Its native Bluetooth connectivity is a major advantage for divers who want to keep their dive logs up-to-date without the hassle of cables, making it easier to share and analyze their dives. It's a reliable companion for everyday underwater explorations, offering a balance between discretion and essential features.

However, this computer will not be suitable for divers looking for a large, backlit color screen for maximum readability, especially for those with presbyopia. Similarly, those who require wireless air pressure management will need to consider other models, as the i200C does not offer this feature. It is important to carefully assess your specific needs before making a choice, as each instrument has its strengths and limitations, and compatibility with your diving style is key to a smooth underwater experience.

After-sales service is a criterion that is often underestimated, but it becomes very important in case of need. For the Aqualung brand, the support is generally very good. Recent computers, such as the i200C, are frequently factory-sealed, which greatly simplifies standard exchange procedures in case of problems under warranty. This approach ensures a quick and effective resolution of any technical issues. However, it is essential to emphasize that the quality of the after-sales experience can depend on the efficiency and responsiveness of your local dealer. A good dealer will be your best ally for any questions or interventions needed regarding your equipment. Do not hesitate to contact your point of sale to obtain precise information about warranty and repair procedures.

The i200C is powered by a CR2430 battery (replaceable). This choice of a standard, user-replaceable battery is a significant advantage, especially for traveling divers or those going on cruises. The ability to change the battery yourself, without special tools and without losing desaturation data, offers valuable autonomy. You are no longer dependent on a service center for a simple maintenance task, which minimizes interruptions to your diving activities. This is a practical solution that guarantees peace of mind, knowing that you can always bring your computer back to life, even in the middle of nowhere.

To find out which battery to buy for this computer, check out our complete guide on batteries for dive computers. To learn how to replace the battery yourself step by step without risking damage, read our complete tutorial on how to change your own battery.

If the i200C has caught your attention, it is worth exploring other offerings from the Aqualung brand. Each model is designed to meet specific needs, and a thorough exploration may reveal the instrument perfectly suited to your diving activities. Feel free to consult our detailed reviews of other Aqualung computers to refine your choice:

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To compare this computer with other models, see our diving computer comparison tool.

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