Best dive computers for beginners
Updated 2026-06-30
A dive computer is the one piece of personal gear most new divers buy first — it tracks your depth, time and no-decompression limit live, so you're not relying on rented electronics you don't know. The good news: you do not need an expensive one to start. A simple, reliable computer with a clear display will serve you for years.
Below is what actually matters when choosing your first one, then a few well-proven options to compare. We earn a small commission if you buy through our links — it never changes the price you pay.
Some links on this page are affiliate links. If you buy through them, OpenWaterPrep may earn a small commission at no extra cost to you — it never affects which products we recommend or the price you pay.
What actually matters
Ignore the marketing and focus on these:
- ·Easy-to-read display: big, high-contrast numbers you can read at a glance underwater.
- ·Nitrox-ready: even if you dive air now, you'll likely add nitrox later — get a computer that supports it.
- ·User-replaceable battery (or easy service): saves money and hassle over the years.
- ·Simple menus: as a beginner you want clarity, not 200 settings.
- ·A clear ascent-rate and safety-stop indicator: the features that actually keep you safe.
What you can skip at first
Air integration, full-colour maps, multi-gas technical modes and GPS are great features — but they're not things a new Open Water diver needs, and they add cost. You can always upgrade once you know what kind of diving you love.
Options to compare
Suunto Zoop Novo
Most popular starterA long-standing, beginner-friendly wrist computer with large, simple numbers, full nitrox support and a user-replaceable battery. It's the one many dive shops put on rental fleets for a reason.
Check current price on Amazon →Cressi Leonardo
Simplest to useA genuinely one-button computer with a clean, large display and nitrox support. About as approachable as a dive computer gets for a nervous first-timer.
Check current price on Amazon →Shearwater Peregrine
Buy-it-for-lifeA bright, full-colour screen and famously intuitive interface that you'll never outgrow as you progress. Costs more, but many divers consider it the last computer they buy.
Check current price on Amazon →Frequently asked questions
Do I need to buy a dive computer as a beginner?+
You can rent at first, but most divers buy one early because it's personal safety equipment you want to know intimately. A simple, reliable model is inexpensive relative to the rest of a trip and lasts for years.
Is an expensive dive computer worth it?+
Not for entry-level diving. A basic nitrox-capable computer with a clear display covers everything an Open Water diver needs. Premium models add features (colour maps, air integration) that matter more as you specialise.
What's the difference between a watch and a console dive computer?+
A wrist/watch computer stays on your arm and doubles as everyday wear; a console computer is mounted with your pressure gauge. Beginners usually prefer a wrist unit for its convenience and readability.