Cressi Leonardo 2.0 Underwater Single-Button Scuba Dive Computer, 3 Modes: Air, Nitrox, Gage, User-Friendly Menu - Designed and Made in Italy

Can’t go wrong with this dive computer. Functionality works as it should. Super easy to use. Easy to read at depths. Durability- it’s just as durable as the others. The computer is a one size fits all . Like I said, you can’t go wrong with this dive computer.

Got this a couple of days before the delivery date, which was perfect since it was a birthday gift. Works perfectly. Easy to use, directions are great.

There are quite a few unhappy folks regarding battery change concerns. It's possible some of these came from "over tightening" the battery cover or getting silicone grease from 0 ring onto battery contacts.I had no concerns at all, reset the clock/time of day which was on Central time after Cozumel. Set the SF (Safety Factor) to 1 from a 2, since 2 was ending the dive a bit early, which is totally appropriate; I'm going with setting 1 for next dives.The Leonardo's features are completely fine for all but extra-technical diving. (I have been PADI instructor since 1987) .. It handles Nitrox gas users easily, and the user handbook makes it clear to keep the 1.4 setting for all but extreme enhanced oxygen users in the 36 to 40 (02) range. I printed a full 87 page copy of the user book online and have it in a clear binder for easy reference. Recently I had to replace the clear plastic outer cover ($10.00 at Amazon and elsewhere)...inadvertently while I was using an aerosol sunscreen, some spray went down my arm and fogged the screen thru its small ports. It was still barely ok to use and the fog was not clearing up after soapy soaking, easy fix to pop off and pop on a new cover.Truthfully I cannot imagine paying many more hundreds of dollars for another brand. If you're looking for large easy to read numerals, water temp, max depth, No Decomp. time remaining, alerts for safety stop in minutes and feet, plus decompression dive details if you overstay your limits, this works beautifully.GBC

I love this computer until it stopped working with no reason. It was working great last time I used it, but with this covid pandemic I didn’t use it for 3 years and was properly stored at home. I changed the battery myself (as I always do because the model is prepared for battery change by user) but this time makes beeps and the screen looks dead. No sign of corrosion inside. After a web research I found that a lot of people have same problem with this model (beeps and dead screen after not using it for more than a year). I contact Cressi and they immediately contact me with support. I will update once I get it fixed but customer service worked great so far.

Fantastic computer and extremely easy to use. I decided to buy a computer since have started diving frequently and found that computer aren't that easy to handle, at least for me that I am Advance Open Water Padi and didn't dive with gases yet.This computer is pretty easy to use, with its single button interface. I set it up very fast, I could choose between metters or feet, celsius or farenheit, air or nitrox, safety factor (I used the default since I am a 'healthy' person) and other parameters that I never used. Since it has 1 single button, the way to use it is short press and long press, where short press is to change the menu and long press is to edit something.Once I got into de water, it was pretty easy to read (I have 1 point astigmatism in both eyes), with long press I turned the light on for a couple of seconds. Also the best features imho, are the heads up when I go up faster than I should do... it beeps and complains, in the safety stop it indicates easily the amount of remaining minutes. I feel much more confortable diving with it.I have just come from a dive into the Blue Hole in Belize where we dove at 40m depth (131ft) and it was my first dive so deep and using this computer made me feel more secure.The standard view into the water is the water temperature, max depth, current depth and current dive time. If you want to take a look you could check my fedepia84 youtube account videos in Belize (the name is "Scuba Diving in Esmeralda spot, Ambergris Caye, Belize"). Or you can check this video at the minute 5:30 where I test going up quickly to test the alarm heads up:[...](Note: if you above this note the "[...]" text is because Amazon removed the link, so you will need to search the name above or check my comment below on this review)The only little thing I think it might be a cons, is that the watchband is sort of long and is little annoying (check the screenshot and video) and in one moment I didn't notice that the watchband grabber got released... nothing happens but I could have lost it. Next time I'll make sure to grab it tightly.

We bought two Leonardo's at the same time, the computers work fine - until the battery dies. The first time we replaced both batteries with batteries bought from a Cressi dealer and got beeps but no display after the initial boot. Tech support at Cressi had us send them in and sent them back working, saying they had 'updated the firmware and this should not happen anymore.' Well, here we are again after those batteries died. Replacing them only produces beeps but no display.Maybe if you replace the battery right when the computer is dying, you maybe ok? For us both times we had not been diving in a while, so the battery may have been dead for some time. And of course having to send the watch in meant we were without our watches for our dives each time.But with two watches and the same issue twice on each (100% failure rate), I cannot recommend anyone buy this dive computer.

I've used this for 56 dives now and it works great. Great battery life, easy to use, easy to clean, durable. Yes it's a little big, but easy to see without bifocals underwater!

The watch works great, but it lacks the ability to download data to a smartphone or computer. The second generation supports that.