Is a Dive Computer Worth the Money?

Back in the day, tables were the standard. These days, most recreational divers wear a wrist-mount computer and for good reason.

Your computer calculates depth, bottom time, speed of ascent, and no-deco limits in the moment. Tables can't do that. When you go shallower partway through, a computer adjusts. Tables are set before you get in.

Watch-style computers are what the majority of divers go for these days. These are compact, easy to read, and you'll wear them as a daily watch as well. Console computers are available but not as many people choose them anymore.

Entry-level computers start around $300-odd and handle everything most divers would need. Features include depth, dive time, NDL, a logbook, and sometimes a simple apnea mode. Mid-range adds transmitter compatibility, better readability, and extra nitrox compatibility.

What new divers don't think about is how the computer handles. Certain computers are more conservative than others. A conservative setting means reduced NDL. More aggressive ones allow longer time but at reduced margin. Both work. It just your style and your diving background.

Check with people at learn more a Cairns dive shop who's used a few different models before buying. Good dive stores will give you real-world feedback on which ones hold up and what's just marketing. Most good dive stores publish product guides and comparisons on their websites as well