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You must verify your maximum depth and planned duration before starting to ensure they fall within the device’s rated capabilities.
For a comprehensive look at the hardware, see our full Garmin Descent G2 review.
Descent G2 software profiles support freediving and pool apnea modes
The Descent G2 provides specific software profiles for freediving (diving without external tanks) and pool apnea (breath-holding in a pool). These modes differ from standard scuba algorithms because they track different depth and time limits to ensure safety. We selected the Descent G2 for this comparison because it includes these specific software profiles among the watch-style dive computers we evaluated. Because a scuba diving computer’s primary job is to track depth and time, having a dedicated freediving mode is critical; using a standard scuba algorithm for breath-holding can lead to incorrect safety alerts or data logging. The device uses leakproof buttons and a 1.2 AMOLED display to manage these modes. If it does, this device is not suitable; if it is shallower, the Descent G2 is a viable option.
You can find how the Descent G2 performs in our detailed technical breakdown.
What to Check Before Buying the Descent G2
Before purchasing this watch-style dive computer, verify these specific requirements for your environment:
Readers can view the Descent G2 comparison analysis to see how it stacks up against rivals.
- Check if your freediving technique requires a specific surface entry or exit point marking to track your path.
- Verify that the physical button layout allows for easy operation with one hand while you are holding your breath.
- Ensure your intended pool apnea sessions do not exceed the device’s internal logging limits.
Comparing the Descent G2 to Other Dive Computers
The Descent G2 is a versatile option for those who need a single device for both technical scuba and freediving. If you are a professional diver who requires specialized features like high-altitude performance or specific gas-switching capabilities not listed in the basic specs, you might look at more specialized technical units. However, for most recreational and technical divers who also participate in apnea training, the inclusion of multi-GNSS support and a sapphire lens provides a durable, multi-use solution. Buyers who prioritize a smaller footprint might look at different form factors, but the 46mm case diameter provides a standard balance of screen real estate and wearable comfort.
Learn more about how the Descent G2 uses recycled plastics to see its environmental impact.
If you need a device that handles both scuba and freediving, the Descent G2 is a strong choice. If you require specialized technical features beyond these specs, consider a more specialized technical dive computer.
If you need navigation, explore the best scuba diving computer with gps for your next trip.
The other scuba diving computer guides we have published
- Choosing the Best Watch-Style Dive Computer with Air Integration
- The Watch Style Dive Computers That Work Best for Small Wrists
- Which Scuba Diving Computer with GPS Is Best?
- Best Dive Computers for Nitrox
- Tracking Depth and Bottom Time While Snorkeling With a Scuba Diving Computer
- Which Scuba Diving Computer Keeps You Safe During Deep Technical Dives Under 260m?

