Dive Computers: Worth the Investment

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Years ago, dive tables were the only option. These days, most scuba divers use a personal dive computer and for good reason.

Your computer calculates depth, time, ascent rate, and no-decompression limits in the moment. Tables give you a static more plan. When you move between depths partway through, the computer recalculates. A table can't.

Wrist computers are what the majority of divers go for these days. These are small enough, readable underwater, and you'll use them as a daily watch between dives. Console computers are an option but less buyers pick them these days.

Basic computers start around a few hundred dollars and handle everything the average diver would need. They give you depth tracking, bottom time, NDL, log function, and usually an entry-level freediving mode. Mid-range gets you air integration, improved displays, and more nitrox modes.

What new divers don't think about is algorithm differences. Certain computers are more conservative than others. A cautious setting gives you reduced no-deco time. More aggressive algorithms allow longer bottom time but at reduced buffer. Both work. It just personal preference and experience level.

Ask the staff at a dive shop who dives with multiple brands first. Good dive stores will give you a straight answer on what works and what isn't hype. Decent dive shops put out product guides and honest reviews online as well

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