Garmin Dive Computers

No. Garmin Descent computers (like the Mk2i and Mk3i series) are designed exclusively to pair with the Garmin Descent T1 or T2 Transmitters. They communicate using Garmin’s proprietary SubWave sonar technology, which is not compatible with transmitters from other brands. To gain air integration, you must use a Garmin Descent transmitter.

Garmin Descent computers use the globally recognized Bühlmann ZHL-16c algorithm with customizable Gradient Factors (GF). Adjustability: Yes. Divers can control the Gradient Factor to set their preferred level of conservatism (low, medium, or high). Advanced users can also manually set their own GF Low (deep stops) and GF High (shallow stops) values, which is a major benefit for technical divers.

Absolutely. The Descent series is designed as a true 24/7 multisport GPS smartwatch. It seamlessly transitions from dive mode to tracking activities like running, golf, cycling, and sleep. Smartwatch Mode Battery: The battery life is a key selling point. The Mk3i 51mm model can last up to 25 days in smartwatch mode, or up to 66 hours in dive mode (with T2 Transceiver connected). Key Features: You get full features like an AMOLED screen, Garmin Pay™ contactless payments, built-in flashlight (51mm model only), and integrated surface GPS tracking.

The latest Garmin Descent Mk3 and Mk3i series have a depth rating of 200 meters (656 feet). Improved Durability: A major upgrade over previous generations is the introduction of leak-proof inductive buttons. Unlike traditional mechanical buttons, these are solid, sealed contact points, which eliminate a common failure point and significantly enhance the watch's water resistance and long-term durability, especially for deep and technical diving.

The Dive Readiness score is a metric (from 1 to 100) that estimates your body's overall preparedness for a dive. It's an intelligent safety feature that leverages Garmin's advanced 24/7 health tracking data. The score is calculated continuously throughout the day using several factors from your non-dive activities: Sleep Score & History: Quality and duration of recent sleep. Recovery Time & Body Battery™: Your current state of physical recovery from workouts and overall daily energy levels. Jet Lag: The device factors in time zone changes if you've recently flown. Dive History: Your recent diving frequency (you must log dives for this to remain meaningful). The purpose is not to say "Go/No-Go," but to advise a level of caution. For example, a low score (Red/Orange) might be a reason to consider a more conservative Gradient Factor setting or a shallower dive profile.