What is the primary purpose of using a dive watch or computer?

The primary purpose of using a dive watch or computer is to monitor dive time, depth, and no-decompression limits. This crucial function is essential for ensuring diver safety. By keeping track of these parameters, a diver can avoid exceeding safe limits that could lead to decompression sickness or other diving-related injuries.

Dive computers and watches calculate and display real-time information, allowing divers to make informed decisions during their dive and manage their time underwater effectively. They provide alerts about ascent rates and safety stops, further enhancing safety measures.

While measuring water temperature, tracking heart rates, or recording underwater photos may be valuable, these functions do not address the most critical aspects of dive safety and planning. Monitoring dive time, depth, and no-decompression limits remains the primary focus for all divers to ensure a safe diving experience.