The Scuba Diving Computers That See My Dive Data on My Phone: Sync Dive Logs Via Bluetooth to Mobile Apps

What We Recommend and Why

Seamlessly viewing your dive logs on a smartphone allows you to analyze your depth profiles and surface intervals without needing a tethered connection. This connectivity transforms a standalone device into a portable data hub for post-dive review.

The Garmin Descent G1 010-02604-01 serves as the primary choice for mobile data enthusiasts on a budget, while the Descent Mk2S is better for those who prefer a color display. Divers who prioritize extreme battery life for multi-day expeditions should opt for the Descent Mk2i Titanium.

We selected these models after screening 15 Scuba Diving Computers and comparing 5 in this page’s table here at Scuba Forge. The shortlist covers a price range from $489.99 to $699.99, with a median price of $489.99.

For a deeper dive into the technical specs, view our full Perdix 2 review.

Scuba Diving Computers for Viewing Dive Data on a Phone: Price, Rating and Specs Compared

Prices are approximate and move frequently – check the current price before deciding. “Not stated” means the manufacturer listing does not give that figure – we do not estimate it.

Among our top picks, the Garmin Descent Mk2i Titanium with Black Band is the value leader because its 80-hour battery life provides the most endurance per dollar.

The Full Review of Each Pick for Viewing Dive Data on a Phone

The 3 picks below are reviewed in the same order as the cards above.

Garmin Descent Mk2i Titanium with Black Band

The Descent Mk2i Titanium provides the most extensive battery life for users who need to sync dive logs and data to a smartphone via the Garmin Dive app. It offers the most robust ecosystem for wireless dive data transfer among the options we evaluated.

What we like: The 80-hour battery life in dive mode allows for extended use without frequent charging. It includes integrated pressure monitoring on up to 5 tanks via the SubWave sonar data network, which lets you see remaining air time and consumption rates on your wrist.

Keep in mind: The $699.99 price point makes this the most expensive option for users who only need basic connectivity.

Garmin Descent Mk2S 010-02403-00

The Descent Mk2S offers a high-performance balance of features for syncing dive logs to mobile devices while maintaining a compact 1.2 inch color display. It provides a middle ground for those needing advanced training features and smartphone integration.

What we like: It features a 30-hour battery life in dive mode and supports the Garmin Dive app for mobile data. The 4.8 rating from 305 ratings reflects the high level of buyer satisfaction with its functionality.

Keep in mind: The 6-hour battery life in GPS mode with music is a significant drop from its dive mode capacity, which may limit its use as a primary fitness tracker during long excursions.

Garmin Descent G1 010-02604-01

The Descent G1 serves as the entry-level option for syncing dive logs to a phone, providing the core Garmin ecosystem at a lower price point. It is a reliable choice for those prioritizing the app integration over advanced hardware materials.

What we like: The $489.99 price provides a cost-effective way to access the Garmin Dive smartphone app compatibility. It includes 24/7 wrist-based heart rate monitoring and a 25-hour battery life in dive mode.

Keep in mind: The monochrome display and 1.27-inch screen size are smaller and less vibrant than the color displays found on the other models we compared.

If you prefer Italian engineering, look at our full Cressi Goa review for more details.

What to Look For in a Subsurface Computer for Viewing Dive Data on a Phone

Bluetooth connectivity range for syncing dive data to phones

Prioritize a device with Bluetooth for wireless data transfer, as the range determines how close you must be to your phone to initiate a sync. The Garmin Descent Mk2i Titanium with Black Band and the Garmin Descent Mk2S 010-02403-00 both support this connectivity. While the specific range is not stated in the data, these models allow you to pair the device with a smartphone to move data without cables. You can see your dive logs in real-time on your phone only after you surface and the device establishes a connection, as Bluetooth does not function underwater.

Mobile app compatibility for specific smartphone operating systems

Verify that the device works with the specific mobile platform you own, as some brands restrict their software to certain operating systems. The Garmin Descent G1 010-02604-01, Garmin Descent Mk2i Titanium with Black Band, and Garmin Descent Mk2S 010-02403-00 all feature Garmin Dive app compatibility. This means you use a dedicated mobile app rather than a web portal to manage your records. Because these models use the Garmin Connect ecosystem, you can access your profile and dive history through a native interface on your smartphone.

Data Sync Speed

Look for models that support multiple connection types to ensure a fast transfer of large log files. The Garmin Descent G1 010-02604-01 supports Bluetooth, USB, and Wi-Fi, which provides multiple paths for moving data quickly. The Garmin Descent Mk2i Titanium with Black Band and the Garmin Descent Mk2S 010-02403-00 rely on Bluetooth for wireless pairing. You initiate the sync by opening the app on your phone and selecting the device; the app then pulls the stored data from the watch to your phone’s local storage.

Logbook storage capacity for holding at least 200 dives

Choose a device that stores at least 200 dives on the wrist to ensure you do not lose data before a sync occurs. The Garmin Descent G1 010-02604-01 and the Garmin Descent Mk2S 010-02403-00 both hold up to 200 dives. The Garmin Descent Mk2i Titanium with Black Band does not state a specific internal storage limit in the data. Having a high local capacity means you can go on multiple dives before needing to clear the memory by syncing to your phone.

Cloud backup integration for protecting synced dive log data

Select a brand that integrates with a cloud service to ensure your data is backed up even if your phone is lost or damaged. The Garmin Descent series is selected because it offers a robust ecosystem for syncing dive logs to mobile devices via the Garmin Connect app. Once the app receives the data from your watch, it automatically uploads the information to the cloud. This process allows you to view your dive profiles on any device signed into your account, providing a permanent record of your surface navigation and depth history.

View our ranked favorites in our top picks.

Find the best match for your needs in the audience checklist.

View the technical specifications in the comparison table.

Each Job, What It Takes and How the Picks Do

Each row is a job this page’s buyers ask about, worked out from each pick’s listed display resolution and a typical need for the job.

Each need is a typical figure for that job rather than a manufacturer claim, and the picks’ results come from their listed specifications. Where your job is bigger or smaller than the typical one, go by your own figure.

Who Buys Scuba Diving Computers, and What It Really Costs

See exactly what products are included in the scope.

Check the essential specs in the requirements.

View the installation and warranty info in the setup and warranty notes.

You can also see how the Scubapro G2 Wrist performs in our detailed analysis.

Ensure your gear meets industry requirements by viewing the safety standards and certifications for these devices.

What It Takes to Run One, and What to Verify

Requirements for Syncing and Connectivity

You need a smartphone with Bluetooth Connectivity, which is the wireless link used to sync dive logs to a mobile device, to use these subsurface computers. Each model uses a different method to maintain the connection or manage the data.

• The Garmin Descent Mk2i Titanium with Black Band uses a SubWave sonar data network to share data across a 10-meter range.
• The Garmin Descent Mk2S 010-02403-00 and the Garmin Descent G1 010-02604-01 both use Bluetooth to sync data to a smartphone.
• The Garmin Descent G1 010-02604-01 also supports USB and Wi-Fi for data transfer.
• You must have the Garmin Dive app installed as the primary Data Syncing App to view your dive profiles on a phone.

Verifying Your New Subsurface Computer

Warranty coverage and return windows vary by the specific seller and your country. Confirm these details before the return window closes to ensure you are protected.

• Check the screen for any cracks or dead pixels, as a 1.2-inch or 1.4-inch display is difficult to repair and is the primary interface for your data.
• Verify that the GPS, GLONASS, and Galileo support functions correctly, as these sensors are required for marking surface entry and exit points.
• Confirm the battery life meets the stated figures, such as the 80 hours on the Mk2i Titanium, to ensure the unit can handle your planned dive duration.
• Test the Bluetooth pairing with your phone immediately to ensure the Data Syncing App can see the device.

Perform a firmware update as soon as the unit arrives to ensure the software is current for the latest app compatibility.

Get answers to common questions in the FAQ.

Explore every model in depth within the detailed reviews.

Learn how to choose your perfect model in the buying guide.

Scuba Diving Computers for Viewing Dive Data on a Phone: The Questions This Choice Raises

Syncing Dive Logs to a Smartphone

The Garmin Descent series provides a way to view dive profiles on mobile devices by using the Garmin Dive app. This app allows for a logbook export, which is a digital archive of your dive history including depth and time. The Garmin Descent Mk2i Titanium with Black Band offers 80 hours of battery life in dive mode, ensuring the device remains powered for long sessions before you need to sync data. How many past dives can you store before the device overwrites old ones?

Maintaining a connection between your scuba diving computer and your phone requires specific hardware and software. The Garmin Descent G1, Garmin Descent Mk2i Titanium, and Garmin Descent Mk2S all use Bluetooth for wireless dive data transfer to your smartphone. There is no monthly subscription fee required to keep your data synced to your phone with these models. For charging and data transfer, the Garmin Descent G1 uses a USB connection, while the other models do not specify a proprietary cable requirement in the provided data, though they support standard Garmin connectivity.

Is there a monthly subscription fee to keep my data synced to my phone?

No, there is no monthly subscription fee to keep your data synced to your phone for the Garmin Descent series. The Garmin Dive app functions as the primary interface for viewing your dive logs without recurring costs.

How many past dives can I store on the device before it starts overwriting old ones?

This capacity makes regular syncing to a smartphone a useful way to maintain a long-term archive.

Do I need to buy a special proprietary cable or can I just use a standard USB-C/Lightning cable?

The data does not state if a proprietary cable is required for the Garmin Descent Mk2i or Mk2S, but the Garmin Descent G1 supports USB connectivity. You should check the specific charging port on your model to see if it matches your existing standard cables.

Which model should I buy for easy phone integration?

If you prioritize a robust ecosystem for syncing dive logs and data to mobile devices, the Garmin Descent series is the intended choice. The Garmin Descent Mk2i Titanium with Black Band provides the highest endurance at 80 hours in dive mode for the price of $699.99.

Choosing the right size is vital, so find your ideal case diameter before making a purchase.

New divers should first learn about the various types of scuba diving computers available today.

Who Should Skip These Dive Computers

These models are designed for recreational and intermediate use and do not provide the specialized monitoring or safety margins required for extreme deep-sea operations.

For those who need specialized equipment for extreme depths or technical diving, you should look for a dedicated technical dive computer.