01Dive computers prioritise underwater decisions
Documented dive computers can include depth sensing, dive modes, decompression algorithms, gas settings, alarms and dive logs. The exact functions vary by model and must be checked in current product information.
02GPS sports watches prioritise surface activity and navigation
Adventure watches commonly focus on GNSS, maps, tracks, altitude, compass and multisport activity. Some products combine both categories, but only where the dive functions are explicitly documented.
03Do not choose by appearance
Two watch-shaped devices can have completely different intended uses and safety documentation. Select around the activity and current manual rather than case style or screen size.