Dive Computer Expert Reviews
Saving Your Precious Time And Finding The Best Dive Computer For You

Dive computer reviews are perfectly organized and consist of fully researched information and ratings of Aeris, Cressi, Mares, Oceanic, Sherwood, Suunto, Tusa, and UWATEC/ScubaPro brands.  In Catalogue Section you may compare any models side-by-side and select dive computer according to your needs! Join thousands of happy customers!


Cressi Leonardo: I Felt Safe While Diving

Cressi Leonardo: I Felt Safe While Diving

Cressi Leonardo - dive computer for recreational diving. It has 1 control button and user friendly interface. Leonardo is well equipped with all necessary functions to assist us in diving with Air, Nitrox, or in Gauge modes!

General Information
User Interface
Your Review



Cressi Leonardo is dive computer that you may buy at the very beginning of your dive career and it will still be of great use later when you progress as a diver. It is very easy to read, set and dive with. It supports diving with Air and Nitrox mix, has visual and audible alarms. This Cressi dive computer like nothing else compares both in features and value for money.

Cressi Leonardo can be recommended dive computer for beginners and recreational divers who has Nitrox certification. Dive computer has 3 dive modes, support 1 Nitrox mix, has user adjustable Safety Factor, Altitude levels, and possibility to enable or disable Deep Stop.


Video Introduction to Cressi Leonardo. Unable to watch this video? Watch it on Youtube


As a big plus in helping new divers to learn all operations of this dive computer, Cressi equipped it with the excellent user manual and intuitive user interface. Below is the Reference Card of the extensive set of key functions and alarms that made this instrument one of the best dive computers around with features-price-usability ratio.


Cressi Leonardo Features Card

Copy this Cressi Leonardo Features & Alarms Card for your Reference and Share with your friends and buddies!



Benefits of using Cressi Leonardo dive computer

  • you will have one of the most user-friendly dive computers on our market;
  • you will get dive computer with easiest to understand and follow user manual;
  • you will have dive computer with large display with perfectly seen dive data, strong backlight and loud alarms;
  • you will be able to set many functions, as Cressi Leonardo has high number of user adjustable options;
  • you will have dive computer that addresses all aspects of recreational diving;
  • you will be able to change battery yourself with ease;
  • you will definitely save money for something esle buying Cressi Leonardo dive computer








User Interface
1 button
Dive Modes
Air, Nitrox, Gauge
Integrated Digital Compass
Number of Gas Mixes
Air, 21% - 50%
1.2 - 1.6 ATA
Air Integration
Safety Stop (SS)
Deep Stop (DS)
Conservative Factor
Altitude adjustment
A0/A1/A2/A3 - 0 m - 3700 m
Gas Switching
Dive Planner
9 - 48 meters
Logbook Capacity
70 dive hours or latest 60 dives
Max Operational Depth
120 meters
Backlight duration
5 - 7 sec
Sampling Rate
20 sec
User Replaceable Battery
Data Retention
PC Interface
2 years










Cressi Leonardo has 1 control button for setting and retrieving data. Simple and intuitive interface makes this dive computer user friendly and acceptable for the very beginners. This Cressi dive computer has main and alternative displays for operations on surface and underwater.

To keep the diver well informed in oxygen toxicity level and Ascent speed, dive computer has bar graph to display CNS O2 toxicity level and set of arrows to show Ascent speed respectively.







This Cressi dive computer has main menu system that consists of 9 sections. Besides Pre Dive mode (which is main Leonardo's display) we have few more modes:

  1. Logbook - where I could observe my dive data;
  2. Dive Set - that's the place where I customized Cressi Leonardo;
  3. Time Set - date and time setting;
  4. Plan - dive planner;
  5. Gauge - enable computer working as a gauge;
  6. PClink - use this mode to interconnect with PC;
  7. History - this mode shows all available dive history;
  8. System - set the units and RESET the system


We may access each of them from Predive display by pressing button. To do adjustments of specific parameters and to get inside the menus, I had to press and hold the button.

It was very easy to customize Cressi Leonardo! I worked out how to do it barely reading the manual - interface was very intuitive!


Cressi Leonardo Fine-Tuning Card

Copy this Cressi Leonardo Fine-Tuning Card for your Reference and Share with your friends and buddies!







Diving with Cressi Leonardo was nice'n'easy! This streamlined dive computer has main and only one alternative display, but it is enough to be confident in any dive situation.


Cressi Leonardo: Diving With Air & Nitrox

I set my Leonardo for Nitrox with FO2 - 32% before diving.


Cressi Leonardo NO-DECO Card

Copy this Cressi Leonardo No-Deco Diving Displays Card for your Reference and Share with your friends and buddies!


If you set Air dive mode - display looks similar, except indicators Nitrox and CNS.

Upon reaching certain depth during the diving profile, computer may give Safety and Deep stops prompts. These stops are not mandatory, but it is a good diving practice to follow them.

Cressi Leonardo is factory set for Safety Stop reminder and diver can't disable it. Also it is factory programmed for Deep Stop reminder (this one we may disable). I followed Safety Stop prompt and did this procedure at 3 meters for 3 minutes, as it said in books. And the most important values at this moment - Safety Stop depth and Time.

Cressi dive computer monitors constantly ascent speed. When I was ascending faster than should - Leonardo started beeping and 2 or 3 UP Arrows with message SLOW would be displayed. Alarm is loud enough to hear even with hood.

During diving with Nitrox computer calculates related to diving with Nitrox crucial parameters. Those parameters are:

  • High PO2 alarm goes on if current value exceeds the maximum value that you programmed when we go deeper than certain MOD;
  • Oxygen toxicity (%CNS) – upon reaching the allowable level of oxygen exposure, dive computer will give this alarm by beeping and displaying full bar graph


If we exceed NO-Decompression Limits (NDLs) - dive computer will activate Decompression mode to help us perform decompression procedure and resurface safely. Cressi always recommends to stay out of Decompression diving.


Cressi Leonardo DECO Card

Copy this Cressi Leonardo Deco Diving Display Card for your Reference and Share with your friends and buddies!


Cressi Leonardo has "Omitted Decompression stage" alarm. If in some reason diver misses Deco Stop completely and ascends - computer turns ERROR MODE and loks itself for the next 48 hours.


Cressi Leonardo: Diving In GAUGE Mode

Third dive mode of this dive computer is Gauge mode. In this mode diver may use technical mixes or go freediving. Leonardo will function as a bottom timer. It monitors only current depth, time and temperature and it doesn't perform any decompression calculations. So it is completely diver's responsibility to figure out all bottom times and depths.

During Gauge mode, Cressi Leonardo displays following values:

  1. Elapsed Dive Time (EDT);
  2. current depth;
  3. maximum depth during dive;
  4. temperature;
  5. Ascent speed indicator(in case of ascending);
  6. battery indicator;
  7. all other applicable icons


Back to Top







On depth less than 1 meter Cressi Leonardo switched on Surface mode and displayed me following parameters:

  1. Surface time;
  2. Desaturation time;
  3. No-Fly icon;
  4. Max depth and duration of the last dive;
  5. all other applicable notations, like Nitrox, or Deco


If I submerged again in less than 2 minutes - dive computer would consider it the same dive, if I submerged after 2 minutes passed - this dive would be considered as a new repetitive dive with all corresponding calculations.

On surface I could access folowing functions:

  1. Dive Planner;
  2. Logbook that stores 60 latest dives or 70 dive hours;
  3. Dive History;
  4. Dive Profile (need to have special software installed on your PC and PC download kit);
  5. PC function - download to PC your dive profiles by using optional kit;
  6. System RESET - reset all calculations for repetitive diving and return all settings to factory default







Cressi Leonardo: What Divers Say


  • easy to understand user manual;
  • intuitive interface;
  • easy to read and understand dive data;
  • big display;
  • strong backlight;
  • loud alarms



  • no "Step Back" function in user's interface


Cressi Leonardo is absolutely perfect and can be recommended dive computer for beginners and recreational divers - user friendly and intuitive interface, big and easy to read display, sharp numbers and lots of detailed information, customizable features, perfect management of No-Deco and Decompression modes.

During diving I didn't notice any inconveniences with this instrument. Digits were seen clearly on different angles, strong backlight, easy to press button, and Cressi Leonardo displayed enough data to keep me well-informed.


Cressi Leonardo dive computerCressi Leonardo
Dive-Computer-Wizard Rating
golden star golden star golden star golden star
golden star


If you need dive computer that you can rely on deep down with all dive conditions covered, with perfect feature-price-usability ratio and with functions that other dive computers have for higher price - you should definitely buy Cressi Leonardo!



Add comment
Marko, 15 July 2014 12:20
Great Dive Computer But Challenged by a Sticky Compass

Overall I like the Leonardo offering. It is clear, right-sized and has a great feature set. I have not been able to rely on the compass in a console as it frequently sticks. This has the negative of misleading you into believing you are traveling in the right direction. I have not determined whether it is affected by the depth, however it is certainly affected greatly by position. If I can correct this problem I will be thrilled with the package.

Scott, 4 August 2013 11:36
Great Cressi Leonardo - Great Display & Easy To Use

I've been diving with Cressi Leonardo for more than 1 year already. I can't be more happy with its performance than I am!

I love its large display with easy to read digits and all vital dive data shown on one screen. Also high level of customization - it's another big PLUS for this dive computer.

I use Cressi Leonardo with compass and pressure gauge - this console will last with me forever!

Jose, 15 May 2013 07:57
Great Dive Computer For The Price

Cressi Leonardo - great computer for the functions-specs-price combo!

It is easy to learn and use, because of its one button easy access user interface.This dive computer does everything you need to enjoy recreational tropical diving, without having high-tech device!

I have bought one last year for myself and later got one for my wife and she learned it quickly, thanks to easy to follow documentation and intuitive user interface.

I definitely recommend Cressi Leonardo to any of the recreational diver, who want to have easy-going dive computer with very reasonable price!

Fred, 4 May 2012 17:00
Cressi Leonardo - Perfect Dive Computer For The Recreational Diver

As this dive comp is my first of this kind - I may say that I am very pleased with its performance. I had 28 dives with it and it did the job perfectly so far.

User documentation needs some work though, but even for the beginner it wasn't too hard to figure out and learn functions Cressi Leonardo. It has very customizable set of functions, like FO2, PO2, Safety Factor, Deep Stop and Altitude program.

I like two levels of Safety factor adjustments, as this gives me extra-safety during my diving experience. Cressi Leonardo has intuitive and easy to understand display and it is easy to read at any light conditions, thanks to its large display, strong backlight, and sharp digits.

Add comment