Are Dive Computers Worth It?

Years ago, dive tables were how everyone dived. Today, most scuba divers dive with a personal dive computer and it makes sense.

A dive computer monitors your depth, bottom time, ascent rate, and NDL in the moment. Tables give you a static plan. When you change depth mid-dive, a computer adjusts. Tables don't.

Watch-style computers are the most common buy now. These are compact, readable underwater, find out more and you can wear them as a regular watch too. Console models are an option but less buyers choose them now.

Entry-level computers run about a few hundred dollars and do everything the average diver requires. Features include depth, bottom time, no-deco limits, dive logging, and often a simple freediving mode. The $500-800 range gets you transmitter compatibility, improved displays, and more nitrox compatibility.

Something buyers don't think about is how the computer handles. Some computers are tighter than others. A cautious setting gives you shorter NDL. Looser algorithms extend time but with less margin. Both work. It just your style and experience level.

Check with people at a Cairns dive shop who's used multiple brands first. They'll give you honest opinions on which ones hold up versus what's just marketing. Most good dive stores publish gear reviews and comparisons online as well