Best Budget Dive Computers 2026: Mares Puck Pro EZ vs. Cressi Leonardo 2.0 vs. Suunto Zoop Novo
Four entry-level dive computers under $300 compared on algorithm, nitrox, controls, logbook transfer and price, with advice for new Gulf Coast divers.
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Quick answer: for most new divers, the Mares Puck Pro EZ (about $225) is the budget dive computer to buy in 2026: it runs the widely used Bühlmann ZH-L16C algorithm with adjustable gradient factors, handles nitrox from 21 to 50%, and sends logs to your phone over Bluetooth. If you want the computer with the longest track record and the most owner feedback, the Cressi Leonardo 2.0 (also about $225) is the simplest one-button option and has thousands of Amazon ratings. The Mares Puck Lite (about $249) is a lighter take on the same Mares platform, and the Suunto Zoop Novo (about $299) adds a free-dive mode and a backlit display that is easy to read on deep wrecks and night dives.
These picks are research-based: built from manufacturer specs, the details on each Amazon listing and patterns in owner reviews, not from a side-by-side dive test by Get Out Mor. Prices were checked on Amazon in October 2026.
The picks at a glance
| Computer | Algorithm | Modes / nitrox | Controls | Log transfer | Price (Oct 2026) |
|---|---|---|---|---|---|
| Mares Puck Pro EZ | Bühlmann ZH-L16C with gradient factors | Air, nitrox 21–50% | One button | Bluetooth to phone | about $225 |
| Cressi Leonardo 2.0 | Cressi RGBM | Air, nitrox, gauge | One button | USB / infrared interface | about $225 |
| Mares Puck Lite | Bühlmann ZH-L16C with gradient factors | Air, nitrox 21–50% | One button | Check the listing | about $249 |
| Suunto Zoop Novo | Suunto RGBM | Air, nitrox 21–50%, gauge, free dive | Four buttons, backlit display | Cable to computer | about $299 |
Prices compared
All four sit in a tight band. The chart shows the October 2026 Amazon price of each. The $75 spread between the cheapest and the most expensive buys you a free-dive mode, a backlit screen and four-button control on the Suunto; the two Mares models and the Cressi stay with a single button.
What a dive computer does, and do you need one?
A dive computer tracks your depth and time continuously and calculates how much longer you can stay down before you would need decompression stops. Unlike dive tables, which assume you spent the whole dive at your deepest depth, a computer credits you for the time you spend shallower, which usually means longer, safer dives. It also warns you if you ascend too fast and times your safety stop.
You do not have to own one to start. Most dive shops rent computers, and many new divers rent for their first trips. But once you dive more than a few times a year, owning a computer means you know its settings, battery and history, and your dive log stays in one place. If you plan to dive nitrox on Gulf wrecks such as the Oriskany or the Panama City wrecks, a nitrox-capable computer of your own is close to essential.
The best budget dive computers, pick by pick
Best overall: Mares Puck Pro EZ
The Puck Pro EZ is Mares’ current version of the Puck Pro, long one of the most common first computers in dive shops. It runs the Bühlmann ZH-L16C algorithm with dual gradient factors, so you can make it more conservative as your experience or health requires. It handles single-gas nitrox from 21 to 50%, uses one button for everything, and transfers logs to your phone over Bluetooth. Mares says the replaceable battery supports up to 100 dives. The new listing has few ratings so far (4.8 stars from 16), but the Puck platform has a long history.
Skip it if you want to free dive with the same computer; it has no dedicated free-dive mode, which the Suunto Zoop Novo does. Check price on Amazon →
Most owner feedback: Cressi Leonardo 2.0
The Leonardo has been the default “first computer” in many dive shops for years, and the Amazon listing reflects that with more than 3,500 ratings at 4.2 stars. It has air, nitrox and gauge modes, one-button control, and visual and audible alarms. Dive logs move to a computer or phone through a separate USB or infrared interface, which is the main drawback compared with the Bluetooth Mares. Cressi’s RGBM-based algorithm is on the conservative side, which many instructors consider a plus for new divers.
Skip it if you want logs on your phone without buying an extra interface; the Puck Pro EZ does it over Bluetooth. Check price on Amazon →
Lighter Mares option: Mares Puck Lite
The Puck Lite uses the same Bühlmann ZH-L16C algorithm with adjustable gradient factors and the same 21 to 50% nitrox range as the Puck Pro EZ, in a watch-style case with one-button control and a high-resolution segment display. It has 4.4 stars from about 30 ratings. It costs a little more than the Puck Pro EZ at current Amazon prices, so compare the two listings and buy whichever fits your wrist and budget on the day.
Skip it if the Puck Pro EZ is cheaper when you shop; for most new divers the two are functionally very close. Check price on Amazon →
Best for night dives and free diving: Suunto Zoop Novo
The Zoop Novo is the largest computer here, with a big segment display that is backlit for low light and night diving. It has air, nitrox (21 to 50%), gauge and free-dive modes, imperial or metric units, decompression stop data and audible alarms, and Suunto lists a maximum depth display of 100 m (330 ft). The free-dive mode makes it a reasonable crossover for divers who also spearfish on a breath hold. This listing has only a handful of ratings so far.
Skip it if you want a small, watch-style computer you can wear every day; the Zoop Novo’s puck-style case is bulky out of the water. Check price on Amazon →
How to choose a budget dive computer
Algorithm and conservatism
Every computer here uses a well-established decompression model. The practical difference is how conservative each one is by default and whether you can adjust it. Bühlmann with gradient factors, used by both Mares, lets you set conservatism precisely. RGBM-based models from Cressi and Suunto tend to be conservative out of the box, which suits new divers.
Nitrox
If you will take a nitrox course, and many Gulf Coast divers do because it extends bottom time on 60 to 100-foot wrecks, buy a computer that handles at least 21 to 40% oxygen. All four here do.
Controls and display
One-button computers are simple but can take more presses to change settings. Multi-button models like the Zoop Novo are quicker to set up. A backlight matters if you dive at night, on deep wrecks or in murky water.
Logbook and battery
Bluetooth transfer to a phone is the easiest way to keep a log. Check whether the battery is user-replaceable before you buy (the Cressi, the Puck Pro EZ and the Zoop Novo all are) and keep a spare in your dive bag.
Wrist or console
Wrist computers like these are the most popular choice because they stay in view and travel well. Air-integrated or console computers that read tank pressure cost much more and are rarely needed for recreational diving.
Frequently asked questions
Is a dive watch the same as a dive computer?
No. A dive watch is a water-resistant timepiece. A dive computer measures depth and time and calculates your no-decompression limits in real time.
What is the cheapest reliable dive computer?
The Cressi Leonardo 2.0 and Mares Puck Pro EZ are both around $225 on Amazon and are among the most common entry-level computers in dive shops.
Do I need nitrox on my first computer?
It is worth having. Nitrox courses are short, and every computer in this guide supports nitrox at no extra cost.
Can I use a scuba dive computer for spearfishing?
Only models with a free-dive mode, such as the Suunto Zoop Novo, are set up to track breath-hold dives. Scuba modes are not designed for repeated short free dives.
How these picks were chosen
We did not dive each of these computers side by side for this article. The picks are based on manufacturer specs, the details and ratings on each Amazon listing, and recurring themes in owner reviews. We checked that each link opens the exact model named and checked prices on Amazon in October 2026. Our full process is at how we pick gear.
