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Aqualung

Aqualung i300C dive computer

Price without code 246.99

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Features of Aqualung i300C

Product description of Aqualung i300C dive computer

Description summary

Focus on your dive, not your gear, with the AQUALUNG i300C. This rugged, affordable computer is ideal for new divers. Its intuitive design, 4 modes (Air, Nitrox, Gauge, Free), and water-activated start get you exploring fast. Use Bluetooth to wirelessly sync dive logs to the DiverLog app and connect with buddies. Switch up to 3 gases underwater, enjoy easy reading with the backlight, and never lose settings thanks to the user-changeable battery with data retention. A versatile and reliable dive partner. Interface USB not Included

Interface USB not Included

The i300C’s uncomplicated, intuitive, and rugged design lets you focus on your dive, not your gear. With an easy-to-use interface, flexible operating modes, built-in backlight and water-activated on switch, the i300C gets you in the water and descending to your next adventure in no time. This durable, versatile and affordable dive computer is great for new divers as well as dive schools and centers. Now with Bluetooth connectivity, you can use the DiverLog app to share dive log information and connect with dive buddies on most mobile devices. Users will appreciate the data retention feature that saves past settings and calculations between battery changes.


Features:

- Bluetooth connectivity. Now equipped with Bluetooth technology that offers the user a simple and quick wireless exchange of dive log information with the DiverLog app and fast connections with their buddies on social media
- 4 operating modes. Air, Nitrox, Gauge (with run timer) and Free Dive (tracks calculations to allow switching between DIVE and Free)
- User-changeable battery and data retention. Maintains settings and calculations between battery changes
- 3 Gas computer. Able to switch up to three gases underwater
- Backlighting. For easy reading in low light

Other Main Features:
- Audible alarms and additional high-visibility LED warning light for increased safety
- User-updatable software gives access to the latest features and upgrades (must purchase optional download cable)
- Pre-Dive planning feature allows a preview of your next dive
- Water activation feature, to give a no-worries start to the dive
- Single button press access to last dive display (max depth and bottom time)
- History Mode includes total number of dives, max depth, total dive hours and lowest temperature
- 3 Nitrox mixes to 100% O2
- Optional deep stop with countdown timer
- Salt or fresh water dive selection
- Automatic altitude adjustment ensures an accurate profile

Included in the Box:
- Digital Instruction Manual
- Safety Reference Information
- DiverLog Brochure
- Quick Reference Card
- Lens Protector
- Battery Compartment Opening Tool


Specifications:

- Backlight: yes
- Max Depth (Dive and Free Mode): 100m/330 ft
- Max FO2 setting: 21% to 100%
- Multiple Gas: yes
- Max PO2: 1.1 to 1.6
- Audible alarm: yes
- Gauge Mode: yes
- Freedive: yes
- Safety Stop: yes
- book mark: no
- Deep Stop user set: ON/OFF
- Logbook: yes
- History mode: yes
- Reset feature: yes
- Download: yes
- How many button: 2
- Fresh / Salt water select: yes
- Temperature: yes
- Algorithm: Z+
- Conservative factor Adj: yes
- Activation (wet or button): yes
- Mounting option: Wrist / Console
- ALT adjustable: auto adj.
- Ascent rate indicator: yes
- Plan mode: yes
- Calendar: yes
- Batt power indicator: yes
- LCD Display: Segment
- Compass: no
- Shortcut screen: no
- Preview Screen: no
- Air integration: no
- Download cable: Sold Separate
- Bluetooth: Sold Separate
- Data Retention: yes
- Set Audible ON/OFF: yes
- Set Deep Stop On/Off: yes
- Set Depth Alarm: yes
- Set EDT alarm: yes
- set N2BG alarm: yes
- Set DTR alarm: yes
- Set Safety stop Depth/Time: yes
- Safety Stop Timer: yes
- Set WET ON/OFF: yes
- Set Units: yes
- Set Backlight duration: yes
- Set Max PO2 alarm: yes
- User Changeable Battery: yes






Specifications

Technical specifications of Aqualung i300C

  • Display Type

    LCD

  • Flash Light

    Yes

  • Color

    Black

  • Recommended Use

    Diving

  • Features

    User-replaceable battery

  • Features

    Nitrox compatible

Features of Aqualung i300C

Color Black

Color

Black

Recommended Use Diving

Recommended Use

Diving

Features User-replaceable battery

Features

User-replaceable battery

Nitrox compatible

Nitrox compatible

Key differentiators

Audible alarms and a high-visibility LED warning light for enhanced safety.

Bluetooth connectivity for wireless data transfer to the DiverLog app.

Features four operating modes: Air, Nitrox, Gauge, and Free Dive.

Supports up to three switchable Nitrox gas mixes up to 100% O2.

User-changeable battery with data retention to maintain settings and calculations.

Technology in Aqualung i300C dive computer

Energy rating

Warnings

5 / 5

15 Reviews

What our customers are saying about Aqualung i300C dive computer

This Aqualung i300C dive computer offers excellent performance and quality for its price. Buyers praise its easy-to-use interface, intuitive design, and Bluetooth connectivity for seamless smartphone and PC pairing. Key features include a backlit display, three gas nitrox capability, and the ability to switch gases in the water. The user-replaceable battery adds convenience. Many consider it the best dive computer for the money, a budget-friendly option that surpasses competitors. Its design is considered good-looking and versatile, though some note it´s a bit bulky for daily wear. Ideal for both beginner and experienced divers seeking a reliable and affordable dive computer

Aqualung i300C dive computer

Great

2024/01/31

Akod

Easy use, good quality, perfect with app

Aqualung i300C dive computer

Super

2022/11/21

andy

top dive computer! already done 20 dives with. easy to pair to phone. price quality very highly recommended!

Aqualung i300C dive computer

Excellent value for money

2022/02/09

Antonio

It's a great computer at an affordable price. Strengths: - simple to use, very intuitive - backlit - bluetooth connection - possibility to use 3 types of mixes - switch in the water when needed - user-replaceable battery Really nice

Aqualung i300C dive computer

Very well

2022/01/28

Diego Mariano

Shipping within the schedule and with a detailed tracking system. I hope to be able to use the product in a short time. The updates and bluetooth connectivity made me choose this computer over the Suunto Zoop Novo, of which I also have very good references, but for which you have to buy the cable separately.

Aqualung i300C dive computer

Comp

2021/11/24

Вячеслав

Great computer at a great price

Aqualung i300C dive computer

good product

2021/10/10

Kusid

Nice dive computer with lot of useful settings.

Aqualung i300C dive computer

Aqualung I300C DC

2021/07/24

Larry Dadal

Received my DC Aqualung I300C today. Product is well packed & a decent computer at its price range. Best for buyers looking for a budget friendly price. Cant wait to use this asap!!!!

Aqualung i300C dive computer

Good product

2020/07/08

Denis

Good quality product, good and fast delivery, everything came up

Aqualung i300C dive computer

Top computer and easy to use

2020/06/25

Cindy Bonvin

Great computer !!!

Aqualung i300C dive computer

As displayed

2020/05/28

Warren Tsoi

This dive computer does the job well enough for scuba and apnea (free) modes. Too bulky to wear daily.

Aqualung i300C dive computer

Aqualung i300c

2020/03/13

Paulo

Impeccable!

Aqualung i300C dive computer

Aqualung i300c

2020/01/08

Peter

Great product and fast delivery at best price.

Aqualung i300C dive computer

A competent computer

2019/11/01

Tero

A really easy to use and versatile machine. Easily connect via Bluetooth, for example to a mobile phone, where you can make all the adjustments to your machine. Dives with profiles are also saved in the app. Three gas nitrox machine. Good shopping, recommend.

Aqualung i300C dive computer

Super price ..

2019/01/23

Rene makholm

super computer - best in market for the price

Aqualung i300C dive computer

Best for the price

2018/12/25

Rene makholm

Best dive computer on the market for the price, whether you are beginning or more - then this is the best product.

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Include AI Generated questions and answers

2026-09-08

Generated by AI and verified

Aqualung i300C dive computer

Is the Aqualung i300C a good dive computer for a new diver?

Answer of Generated by AI and verified

Yes, the Aqualung i300C is a great choice for new divers. Its design is described as uncomplicated and intuitive, allowing you to focus on your dive rather than the equipment. It features a water-activated start and an easy-to-use interface to help you get started quickly.

* Generated by AI based on customer and product data

2026-09-08

Generated by AI and verified

Aqualung i300C dive computer

Does the Aqualung i300C have a user-changeable battery?

Answer of Generated by AI and verified

Yes, the Aqualung i300C features a user-changeable battery. It also includes a data retention feature, which maintains your settings and calculations even when you change the battery.

* Generated by AI based on customer and product data

2026-09-08

Generated by AI and verified

Aqualung i300C dive computer

Can I connect the Aqualung i300C to my phone?

Answer of Generated by AI and verified

Yes, this dive computer is equipped with Bluetooth connectivity. You can wirelessly exchange dive log information with the DiverLog app on most mobile devices and share your dives with friends.

* Generated by AI based on customer and product data

2026-09-08

Generated by AI and verified

Aqualung i300C dive computer

Is the Aqualung i300C a reliable choice for beginner divers?

Answer of Generated by AI and verified

Yes, the Aqualung i300C is designed with beginner divers in mind, offering a user-friendly interface and essential features like Bluetooth connectivity and a user-changeable battery.

* Generated by AI based on customer and product data

2026-09-08

Generated by AI and verified

Aqualung i300C dive computer

What dive modes are available on the Aqualung i300C?

Answer of Generated by AI and verified

The Aqualung i300C offers four operating modes: Air, Nitrox, Gauge (with a run timer), and Free Dive.

* Generated by AI based on customer and product data

2026-09-08

Generated by AI and verified

Aqualung i300C dive computer

What is the maximum depth rating for the i300C dive computer?

Answer of Generated by AI and verified

The Aqualung i300C has a maximum depth rating of 100 meters or 330 feet.

* Generated by AI based on customer and product data

2026-09-08

Generated by AI and verified

Aqualung i300C dive computer

Does the i300C have safety alarms?

Answer of Generated by AI and verified

Yes, the Aqualung i300C is equipped with audible alarms and a high-visibility LED warning light for increased safety.

* Generated by AI based on customer and product data

2026-09-08

Generated by AI and verified

Aqualung i300C dive computer

Can I use different gas mixes with the Aqualung i300C?

Answer of Generated by AI and verified

Yes, the Aqualung i300C is a 3-gas computer, allowing you to switch between up to three different gases underwater. It is Nitrox compatible with a max FO2 setting from 21% to 100%.

* Generated by AI based on customer and product data

2026-09-08

Generated by AI and verified

Aqualung i300C dive computer

Does the Aqualung i300C have a backlight for low-light conditions?

Answer of Generated by AI and verified

Yes, the i300C has a built-in backlight for easy reading in low light. You can also set the duration of the backlight.

* Generated by AI based on customer and product data

2026-09-08

Generated by AI and verified

Aqualung i300C dive computer

Can this dive computer be used for both fresh and salt water diving?

Answer of Generated by AI and verified

Yes, the Aqualung i300C has a setting that allows you to select between fresh and salt water, ensuring accurate calculations for your dive environment.

* Generated by AI based on customer and product data

2026-09-08

Generated by AI and verified

Aqualung i300C dive computer

Is the Aqualung i300C suitable for freediving?

Answer of Generated by AI and verified

Yes, the Aqualung i300C includes a dedicated Free Dive mode that tracks calculations, allowing you to switch between standard diving and freediving.

* Generated by AI based on customer and product data

2026-09-08

Generated by AI and verified

Aqualung i300C dive computer

What mounting options are available for the Aqualung i300C?

Answer of Generated by AI and verified

The Aqualung i300C can be mounted on your wrist or in a console, offering flexibility based on your preference and gear setup.

* Generated by AI based on customer and product data

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Frequently bought together
Best sellers

Use cases

Recreational Scuba Diving 90% Fit

With four operating modes including Air and Nitrox, this computer is a versatile and reliable upgrade for regular divers. Its user-changeable battery and data retention ensure it's always ready for your next dive trip, providing solid performance for recreational profiles.

Dive Modes: Air, Nitrox, Gauge, Free,User-replaceable battery with data retention,Max Depth Rating: 100m/330 ft,Z+ Algorithm

Freediving Sessions 80% Fit

The dedicated Freedive mode provides essential tracking for breath-hold divers looking to monitor their performance. It offers a feature-rich experience, tracking dives and surface intervals to help you progress safely in your training.

Freedive Mode,History Mode,Audible and visual alarms,User-changeable battery

Dive Data Logging and Analysis 85% Fit

For the diver who enjoys reviewing their profiles, this computer offers enhanced functionality with its logbook and history mode. With the optional Bluetooth connectivity, you can download dive data to the DiverLog+ app for detailed post-dive analysis and sharing.

Bluetooth connectivity (sold separately),Logbook and History Mode,Data retention,Download capability

Dive Training and Instruction 75% Fit

The I300C's straightforward two-button interface and clear segment LCD display make it a great all-rounder for both students and instructors. A reset feature allows it to be easily cleared for use in rental programs or between different users in a training environment.

Reset Feature,2-button navigation,Segment LCD Display,Audible alarms

Best for

Best for the Connected Diver

With Bluetooth connectivity for easy log sharing and four versatile operating modes, this computer offers the enhanced functionality and data management that tech-focused divers value.

Wireless connectivity: Bluetooth, Dive modes: Air, Nitrox, Gauge, Free

A Reliable Upgrade for Regular Divers

This computer provides a balanced feature set, including a user-changeable battery and multiple dive modes, making it a solid performance upgrade for those who dive regularly.

User replaceable battery: yes, Dive modes: Air, Nitrox, Gauge, Free, Recommended use: Diving

Great All-Rounder for Dive Professionals

Featuring a 100m depth rating, multiple alarms, and a history mode, this computer delivers the trustworthy performance and safety features required for professional use.

Max depth rating: 100m/330 ft, Alarm function: yes, History mode: yes

Feature-Rich for the Value-Conscious Diver

This computer offers essential features like a user-changeable battery, multiple dive modes, and a backlight without a premium price, providing a great balance of functionality and value.

User replaceable battery: yes, Dive modes: Air, Nitrox, Gauge, Free, Backlight: yes

Benefits

FunctionalAdapt to Your Dive with Multiple Operating Modes

This dive computer offers the flexibility to handle various underwater adventures with its four distinct operating modes. It supports standard Air, enriched air Nitrox, a straightforward Gauge mode, and a dedicated Free Dive mode, making it a versatile tool for different types of diving.

Dive modes: Air

Nitrox

Gauge

Free

FunctionalStay Powered Up with a User-Replaceable Battery

You can easily replace the battery yourself, ensuring your dive computer is always ready for your next trip without needing professional service. Additionally, the data retention feature ensures your settings and dive logs are saved during a battery change.

User replaceable battery: yes

Data retention: yes

FunctionalStay Informed with Audible and Visual Safety Alarms

Enhance your situational awareness underwater with built-in safety features. The computer includes an alarm function and specific alerts for depth, ascent rate, and safety stops to help you manage your dive profile safely.

Alarm function: yes

Set depth alarm: yes

Ascent rate indicator: yes

Safety stop: yes

FunctionalReview and Share Your Dives with Bluetooth Connectivity

Easily manage your dive data after you surface. With Bluetooth connectivity and a logbook feature, you can download your dive history to another device for detailed analysis, record-keeping, and sharing your underwater experiences.

Wireless connectivity: Bluetooth

Logbook: yes

Download: yes

History mode: yes

FunctionalCustomize Your Dive Computer to Your Preferences

Tailor the device to your specific diving style and conditions. This computer allows for adjustments to factors like backlight duration, audible alarm settings, and conservative factor, giving you greater control over your dive experience.

Set backlight duration: yes

Set audible on off: yes

Conservative factor adjustment: yes

Fresh salt water select: yes

Ideal buyer profiles

Tech-Savvy Diving Enthusiast

This diver loves tracking and analyzing their performance. They appreciate gear that can connect to their other devices and allows them to review dive data post-dive.

The Aqualung I300c meets their needs with its comprehensive logbook and history mode. The Bluetooth connectivity, although requiring a separate purchase, allows for easy data transfer to other devices for detailed analysis, which is a key feature for this data-driven diver.

Adventurous Hobbyist Diver

This individual dives regularly for recreation and seeks a reliable, straightforward computer to manage their dives safely. They want a device that covers the essentials without being overly complex.

With four operating modes including Air, Nitrox, Gauge, and Free Dive, the I300c is versatile enough for various recreational adventures. Its user-changeable battery with data retention, multiple audible alarms, and an easy-to-read backlit display provide the reliability and safety features this hobbyist values for a worry-free dive experience.

Price-Sensitive Casual Diver

This diver enjoys occasional underwater exploration, perhaps on vacations, and needs a functional dive computer that won't break the bank. They prioritize core safety features and ease of use over advanced, professional-grade functions.

The I300c offers an excellent balance of features and value. It includes essential safety functions like ascent rate indicators and safety stop timers, multiple dive modes, and a simple two-button interface, providing all the necessary capabilities for casual diving at an accessible price point.

Competitive features

When choosing a dive computer, divers often weigh features, connectivity, and ease of use. The Aqualung I300c is positioned as an accessible and straightforward option for new and recreational divers. It competes with several other models in a similar price bracket, including the Cressi King, Cressi Neon, and Mares Quad 2, each offering a distinct set of features for different diving needs. Our analysis focuses on how the I300c's core functionalities, such as its operating modes and connectivity, stack up against these alternatives.

Where it excels

The Aqualung I300c stands out with its user-friendly design, making it an excellent choice for new divers. It features four operating modes (Air, Nitrox, Gauge, and Free Dive) and a simple, water-activated start. Integrated Bluetooth connectivity allows for wireless syncing of dive logs to the DiverLog app, a convenient feature for tracking dives and sharing experiences with others. It offers practical features like a user-changeable battery that retains data, preventing the loss of settings and logs during a battery swap.

Consider alternatives if...

Divers seeking a computer with a color display might look at the Aqualung I330r, which offers a bright, readable screen that can be a significant advantage in various light conditions. For those who need more advanced capabilities, such as multi-gas support beyond what the I300c offers, or different algorithm options, competitors like the Ratio iDive Sport may be more suitable.

Verdict

The Aqualung I300c is a solid, reliable dive computer that excels in simplicity and value. It's designed to be intuitive, allowing divers to focus on their dive rather than complex gear. With essential features like four operating modes, Bluetooth connectivity, and a user-changeable battery, it provides everything a new or casual diver needs to get started and explore safely. While it may lack the advanced features or high-end displays of more expensive models, its affordability and rugged design make it a highly competitive entry-level option.

Specs comparison

Favorite On Favorite Off
Favorite On Favorite Off
Alarm Functionyesyesaudible alarms and additional high-visibility LED warning light
Dive ModesAir, Nitrox, Gauge, FreeAir, Nitrox, Gauge, Free DiveAir, Nitrox, Gauge, Freedive
Max Depth Rating100m/330 ft100m/330 ft100m/330 ft
User Replaceable Batteryyesyesyes
Wireless ConnectivityBluetoothBluetoothBluetooth
Compassno-Includes compass
Display SizeSegment<50 mmSegment
Battery Typeuser-changeable batteryStandard BatteriesStandard Batteries

Specs vs competitors

Favorite On Favorite Off
Favorite On Favorite Off
Favorite On Favorite Off
Favorite On Favorite Off
Favorite On Favorite Off
Adjustable BrightnessyesYes-YesNo-
Alarm FunctionyesYes-Customizable alarms for hydration, depth, and dive time; alarms can be deactivatedVisual and audible alarms for enhanced safetyAudible and Visual Alarms - Diver Selectable
Dive ModesAir, Nitrox, Gauge, Free4Apnea, SCUBA, GaugeFreediving ModeMultiple modes: Dive (Air/Nitrox), Freediving, Gauge, and OffAir, Nitrox, Gauge
Max Depth Rating100m/330 ft330 Ft / 100 M100 Meters / 330 Feet100 meters120 Msuitable depth rating
User Replaceable BatteryyesYesYes-User-replaceable batteryYes
Wireless ConnectivityBluetoothBluetooth-YesBluetoothWireless Sync
Compassno---Yes-
Display SizeSegment-47 mm<50 mm35 MmPuck-Style
Battery Typeuser-changeable batteryCr2450Cr2450--Replaceable CR2450 Battery
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