Cressi Giotto Dive Computer Review

There is an abundance of dive computers on the market that cater to every type of diver. Whether you're a recreational or technical diver, you can and will find a match. The Cressi Giotto is targeting the recreational diver.

The device has a large display and functionality that allows it to grow with the experience of the diver. The display shows all necessary information on a high-resolution screen. A quick look is usually enough to get the information you need.

Review Summary

Experience Level

Designed for beginner to medium experienced recreational divers.


A large wrist or console scuba computer. Not usable as a wristwatch.

Ease of Use

Simple navigation with three separate buttons.

Price Level

Good value for the price. Priced above the basic entry-level diver computer.

We Like

  • Display is large and sharp
  • Easy navigation with three buttons
  • Features for entry level and experienced divers.
  • Log book that is large enough to store data for 60 dives
  • Complete reset mode for rental shops

We Don't Like

  • Too large to wear as a watch
  • No air integration


The Cressi Giotto is a great diving computer. Cressi added a few features to the functionality that make it a device that you can use for many years. It will grow with you and the only missing thing might be the air integration. Other than that it's a scuba computer that works for beginners as well as experienced divers. And all that comes at a great price point.

Dive Computer in Black and Red by Cressi - Giotto

You will notice that the display is quite clean as it is not stuffed or bombarded with strange abbreviations that beginners might have a hard time understanding. There are lots of personal diving computers with advanced information displays that are better suited for professionals.

The Giotto is available in a large variety of colors:

  • Black/Red
  • Black/Blue
  • Black/Green
  • Black/Grey
  • Black/Black
  • Black/Yellow
  • Black/Pink
  • Black/White
  • White/Lilac

​While the shape is that of a traditional wrist watch, the size is not. It's size reminds more of a hockey puck. For a diver computer though, a small size is not the most important thing yet being able to quickly read the information on the screen is. And the Giotto does a fine job with that.


The Cressi Giotto has the basic shape of a wrist watch but due to its size it is too large to be used as one. The large size has advantages though as the screen allows to read all data at a glance.

It offers three different dive modes:

  • Air
  • Nitrox
  • Gauge
Cressi Giotto Black and Green Scuba Watch Computer

It is a wrist mounted scuba diving computer. It's also available in two console versions. One with a mini pressure gauge and the other with a compass. In all three variations the Giotto shines as a reliable and functionality-rich dive computer.

The large display size allows to see all important data in one view. The data is clearly separated and easy to read. It makes it easy for a diver of any experience level to get the vital information that is needed for a safe dive.

Navigation is managed through three easy to access buttons. They are accessible and usable even when wearing gloves. With thick gloves it can start to get a problem to hit the right button but that should not be a problem for most divers. The battery level is clearly visible on the display. The battery itself can be changed by yourself without a problem. No need to having to bring the computer to a dive shop or service center!

Navigation overall is very simple with the three buttons. Compared to a single button design you also don't have to switch through all menu choices in order to get back to where you want to be. The forward and backward buttons allow for quick switching to get to the menu you need.​

The Giotto has numerous audible and visual warnings for a wide range of conditions:

  • Dive Time
  • Max. Depth
  • CNS Toxicity Alarm
  • Ascent rate violation
  • High PO2
  • Decompression depth warning alarm
  • Decompression air and nitrox warnings
  • Deep stop warning

Technical Capabilities

This personal scuba diving computer can handle oxygen levels between 21% and 99% in Nitrox mode. It is capable of handling two different gas mixes which can be switched during a dive. The pO2 limits for this device can be adjusted between 1.2 and 1.6 bars.

The maximum operational dive depth is 120 m (394 ft). For dives at higher altitudes it can be set to altitude levels of up to 3,700 meters (12,139 ft) in four different altitude settings.

The underlying algorithm is Cressi's RGBM. ​It is based on the Haldane model. The Haldane/Wienke model was modified by Cressi to adapt it to their needs.

The algorithm by itself is rather liberal. The Giotto allows to adjust the conservatism of the algorithm in case you prefer to use a model with higher safety margins. The computer supports three safety settings/factors. By default the computer will take the Cressi model without any safety factor added on top.

The Giotto has a specific display to show the oxygen toxicity level for the Central Nervous System (CNS). This CNS Toxicity display relates to the partial oxygen pressure taking into consideration the diver's exposure time. The resulting toxicity level of oxygen is continuously monitored and displayed in a graph on the screen.

Dive Log and Connectivity

​The log in the device can hold data for up to 70 hours of dive data. Assuming typical dive lengths this is enough for around 60 dives. The data is sampled every 20 seconds. The sampling rate cannot be changed. The data for past dives can be accessed on the device itself. Detailed analysis of past dives can be performed on a PC when the dive log has been transferred to it.

The connector to the PC or Mac is sold separately. You can then analyze the detailed dive information with the provided software. You can also adjust the data to run simulations of future dives.

Missing Functionality

It is considered to still be an entry-level dive computer. Being that, there is functionality missing that you will get from a more sophisticated and expensive device.

The two most obvious missing functions are the lack of a built-in compass (which you can get when you buy a console) and the missing air integration (also available through console). Both are not common in any scuba computer in this price range so you will have to pay a lot more to get them in a higher end scuba diver computer.​

Be aware though that these missing functions are not necessarily a problem for a recreational diver. Typically, the set of functions provided is sufficient for recreational diving and you won't need more.

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  • Easy to use 3 button navigation
  • Alarms both audible and visual
  • Large high resolution display with clear sections to display data
  • Three dive mode settings for Air, Nitrox and Gauge
  • Two Nitrox settings between 21% and 99%
  • Limits for PO2 between 1.2 and 1.6 bars
  • Cressi RGBM algorithm
  • Maximum operating depth 120 meters/393 feet
  • Four altitude settings up to 3,700 m (12,139 ft)
  • Display either imperial or metric data
  • Dive log up to 70 hours equaling 60 dives
  • User replaceable Lithium battery
  • Available in a large variety of different color combinations
  • 2 year limited warranty

Pros and Cons

The Cressi Giotto is a great personal diving computer for medium experienced recreational divers. It's built and designed by one of the leading brands in the scuba realm and it provides all features that you could ask for. 

The display is sharp and provides an easy view onto the essential data. The pricing is right for the capabilities you get. It's a great wrist computer that has the ability to grow with your increased needs over the years.


  • Easy navigation with three buttons
  • Cressi RGBM algorithm
  • Three different dive modes (Air, Nitrox and Gauge)
  • Two Nitrox mixes
  • Gas switching during a dive
  • All capabilities included for a medium experienced recreational diver


  • No compass
  • No air integration
  • Not a wrist watch

The functionality provided by the Giotto makes it a solid choice for a diver that has some experience. It's easy enough to use so that a beginner diver can use it and grow with it. Being able to program two different Nitrox mixes and switch gases during a dive is a great feature that a diver could need after gaining some experience. It does not offer high end features like air integration or a compass but that is reflected in the price. Unfortunately, it cannot be extended with air integration at a later time. Most recreational divers will not miss this functionality though.

Where to Buy?

The best prices and the most color combinations for the Cressi Giotto can be found on Amazon. All optional equipment like the PC connector are also available. Amazon will also make sure that you will get the genuine product and not some knock-off that looks like it!

Customer Feedback

Having a look at the customer reviews on Amazon shows that divers who bought the Cressi Giotto are overwhelmingly happy. You'll be hard-pressed to find any negative reviews on this item except for some connectivity issues to specific MacOS versions as well as a device that was dead on arrival. In that case Amazon will exchange the product without any problems so even in that case you're covered.

Cressi Giotto Wrist Computer in Black-Blue


The comparison chart below shows the differences between the Cressi Giotto, the Suunto D4i and the Mares Smart.

Suunto D4i Novo

Cressi Giotto

Mares Smart

Suunto D4i Novo
Giotto Diving Computer by Cressi in black and yellow
Mares Smart Dive Computer - Black/Red

Max. Depth

100 m / 328 ft

120 m / 394 ft

150 m / 492 ft

Nitrox Capable

Free Dive Mode

Gas Mixes

1 gas

(Oxygen 21 - 50%)

  2 gases

(Oxygen 21 - 50%)

  2 gases

(Oxygen 21 - 50%)







Stainless steel







Log Size

~ 140 hrs

~ 70 hrs

~ 36 hrs

Visual Alarms

Audible Alarms

Battery Life (Avg)

1.5 years avg

1.5 years avg

1.5 years avg


The Giotto is offering all the features you can ask for in a diving computer for the recreational diver. It's a step up from the Cressi Leonardo which is one of the best entry-level wrist computers available.

The screen is easy to read and provides all necessary information clearly separated in a single view. With up to two Nitrox mixes you'll be able to use this diving computer for many years to come as it is able to grow with your needs.

There should really not be any functionalities needed for a recreational diver besides what it offers. For technical divers a compass and/or air integration might be required which is not supported by this device.

Who is it not for?

​This is a really good question. We think that it fits the bill for pretty much any level of recreational diver. A technical or professional diver might ask for a few more functions but otherwise you'll be happy with this device.

The Cressi Giotto does offer all the features you can ask for as a recreational diver. Some might prefer to have a watch sized device with similar capabilities. In that case you might want to consider the Mares Smart.

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