What is a key feature that most dive computers display during a dive?

The maximum depth is a key feature that most dive computers display during a dive because it provides crucial information about the deepest point a diver has reached. Monitoring maximum depth is essential for ensuring that divers maintain safety with respect to their dive profiles and for calculating no-decompression limits. This feature aids divers in staying within safe boundaries, as exceeding certain depths may increase the risk of decompression sickness or require adherence to specific dive tables.

While current water temperature, air consumption rate, and surface interval time are also important factors for divers, they are not universally displayed as a primary feature during every dive. The emphasis on maximum depth showcases its fundamental role in dive planning and safety.