10 Best Dive Computer of December 2025

• A single button Dive Computer makes it effortless to set Air, Nitrox and Gauge modes. Ideal for beginners in Scuba Diving. It is easy to use and easy to read all the information due to the high-definition screen that gives large numerical displays.
• FO2 adjustable between 21% and 50%. PO2 adjustable between 1.2 bar and 1.6 bar. CNS oxygen toxicity graphic indicator.Three levels of user adjustable conservatism. Visual and distinct, easy-to-hear audible alarms.
• User-selectable deep stop function. Adjustable unit of measure: imperial or metric. Battery life indicator. User changeable battery. Battery model: CR2430.
• The interface (not included) uses IR to connect to the diving computer and a USB cable for PC connection. Software compatible with all versions of Windows and with Mac.
• The Leonardo dive computer is made in Italy by Cressi, a brand pioneer in Scuba Diving, Snorkeling, and Freediving equipment since 1946.

Cressi

• Mares Puck Pro Wrist Computer
• Mares Puck Pro Wrist Computer:
• Super Intuitive, Easy-to-Use, and Full-Featured Computer
• Improving on Original Concept
• Larger-Display in Slimmer-Design

Mares

• New nitrox function: three-different gas mixtures during single dive
• Wide, high-contrast display with a 170 degree Viewing angle, data displayed in large-size characters
• 4 buttons easy access simple to use, upgradeable software, hypoallergenic rubber strap, algorithm: mares-wince rgbm
• Deep stops and safety stop functions, back lighting, user replaceable batteries, mineral glass lens, altitude adjustable, log book function
• Air, nitrox and bt function modes, precautionary programmable, 492' depth Rating, power indicators, audible alarms, calendar and temperature displays

Mares

• Bluetooth connects wirelessly to the free DiverLog+ app
• Using your smartphone , the DiverLog+ app (available for iOS and Android) allows you to wirelessly interact with your i200C via the latest Bluetooth Smart technology.
• Remotely control all your i200C settings, view Log and Profile data, add location, notes and other details, as well as store and share photos and videos of your dive.
• 4 operating modes. Air, Nitrox, Gauge (with run timer), and Free Dive (tracks calculations to allow unrestricted switching between Dive and Free).
• User-changeable standard battery and data retention. Uses globally available standard batteries found at supermarkets and drugstores. Maintains settings and calculations between battery changes.

AQUALUNG

• The 3 buttons dive computer provides all the necessary information in regards to depth, dive times, possible need of decompression, ascent rate and all the surface intervals between dives.
• Dive program: full processing of dive data, including decompression if applicable, for every dive performed with air or nitrox.
• Full setting of FO2 parameters (oxygen percentage) and PO2 (oxygen partial pressure) with the option to set PO2 between 1.2 bar and 1.6 bar, and FO2 from 21% and 99%.
• Log book (70 hr or 60 dives) complete with dive profile. Possible to download the data on the PC with the Cressi interface (not included). Deep stop can be turned on or off. Visual and auditory alarms. Built-in calendar and clock. Backlit display.
• The Giotto computer is developed and manufactured in Italy by Cressi, a brand pioneer in scuba diving, snorkeling and swimming equipment since 1946.

Cressi

• High Resolution, easy-to-read display. 2.2" display with vivid, enhanced color range and saturation.
• Thin, Low-profile Design. 30% smaller in volume than the Petrel
• Two Button Interface. Simple to navigate, state-aware menu structure
• User Replaceable AA Battery. With a double o-ring to ensure a great seal
• User Customizable Display. Customize your display with information important to you

Shearwater

• The 3 buttons dive computer provides all the necessary information in regards to depth, dive times, possible need of decompression, ascent rate and all the surface intervals between dives.
• Dive program: full processing of dive data, including decompression if applicable, for every dive performed with air or nitrox.
• Full setting of FO2 parameters (oxygen percentage) and PO2 (oxygen partial pressure) with the option to set PO2 between 1.2 bar and 1.6 bar, and FO2 from 21% and 99%.
• Log book (70 hr or 60 dives) complete with dive profile. Possibility to download the data on the PC with the Cressi interface (not included).
• Deep stop can be turned on or off. Visual and auditory alarms. Built-in calendar and clock. Backlit display. Made in Italy.

Cressi

• Customize Now Aqua Lung i100 Available ADD ONs: Download Cable, Wrist Compass, Extra Battery
• 4 Dive Modes Air, Nitrox (2 Gasses up to 100% O2), Gauge, Free Dive
• User Changeable Battery (you wont lose your data during the battery change of you i100 Dive Computer)
• Super intuitive one button scuba computer software navigation
• In the BOX: Dive Computer Quick Reference Card, Lens Protector, Battery Compartment Opening Tool

Aqua Lung

• Powered by Oceanic's Exclusive Dual Algorithm - Your choice between Pelagic DSAT (Spencer/Powell data basis) or Pelagic Z+ (Buhlmann ZHL-16C data basis)
• 4 Operating Modes: WATCH (Alternate Time, Chrono, Daily Alarm, Countdown Timer), NORM (Air and Nitrox), GAUGE (with run timer) and FREE (tracks calculations to allow switching between NORM and Free)
• User-Friendly Interface with "Step Back" – allows forward and backward navigation through menus and settings - Switch between up to 2 Nitrox mixes to 100% O2 with no restriction (Gas 1 may be up to 100%, and may be less or greater than Gas 2)
• Stop times 3 minutes - displays minutes & seconds - Deep Stop with Countdown Timer – Maybe turned on or off. 2 minute countdown at half your max depth, for dives greater than 80 ft / 25m
• Single button access to "Last Dive" display (max depth & bottom time) - Data Retention - maintains calculations indefinitely when the battery is changed - Audible Alarm with flashing LED light - History Mode includes total number of dives, max depth, total dive hours, and lowest temp

Oceanic

• Operating modes: air, nitrox, gauge and freedom modes
• Programmable for 21% to 50% oxygen mixtures
• Imperial or metric programmable, decompression stop data, audible alarms
• Back Lite display, easy to read in low light & night conditions
• Maximum depth display: 330' (100 meters)

SUUNTO