The original Descent MK1 was a fantastic smart dive computer that brought true integration with your smartphone via Bluetooth technology, but the MK2 takes it so much further with a computer that is based on a popular, tried and tested high-performance Garmin multi-sport watch. Obviously, it has been highly modified to suit our needs with a heavy-duty casing, 3-axis compass, new SubWave sonar-based wireless transmitter technology and ABC sensors. The beauty of basing it on an existing fitness/sport watch is that it also packs loads of features for everyday use. No longer do you need a separate dive watch, dive computer and day-to-day watch.

Function-wise, the only difference between the MK2 and the MK2i is the option for wireless air integration using the . The MK2i can support up to 5 transmitters at a distance of up to 10m. Unlike most transmitter, which use radio frequency (RF) to transmit the data, Garmin has developed a sonar-based technology. The biggest problem with RF waves is that they don't travel through water very well, whereas sonar works best in water which allows for a significant improvement in transmission range.

As with the MK2, the Descent Mk2i comes with ABC sensors, an underwater 3-axis compass as well as surface GPS capabilities to mark your entry and exit points. On land, the Descent Mk2i doubles as a premium multi-sport GPS smartwatch with multi-GNSS support, multiple sports apps, wrist-based heart rate monitoring, a Pulse Ox sensor, advanced training features, Garmin Pay™ payment service, music storage, smart notifications for calls, texts and calendar alerts and much more.