Garmin Descent Mk1 Scuba + Free dive Watch W/GPS is a full-fledged GPS Dive computer in a smooth watch-style structure. Likewise, it is a bright 1.2″ color display with topo mapping. To filter your heartbeat it utilizes Garmin Elevate wrist-based heart innovation however it ought to be in contact with the skin then only it will check the beat productively. To mark your dive section and leave position for a surface route, GPS AND GLONASS Capability is available. For underwater use, easy to read compass is available too.