Choosing dive computers & instruments is a practical format-and-condition decision. An air-integrated watch, an air-integrated console, a compass-equipped console, and a wristwatch computer with a new battery each suit a different priority. The four choices also span new and used condition, including one explicitly marked "Untested." Start with the feature you will use underwater, then weigh condition and listed price.
Quick take
The four choices divide into two wristwatch formats and two console formats. The Oceanic Atom 2.0 centers on a transmitter-equipped watch, while the Suunto Cobra listings focus on console setups, including one with a compass. The Suunto Zoop keeps the format simple with a new battery and seal. Price is also a major separator, so the comparison below puts cost beside the practical differences without treating a higher figure as proof of better performance.
Listed-price comparison
Prices run from $89 to $325. The gap between the Suunto Zoop and Oceanic Atom 2.0 is $236. The bars show relative price position, not capability.
| Product | Listed price | Price position |
|---|---|---|
| Oceanic Atom 2.0 Dive Computer Watch Air Integrated Nitrox With Transmitter | USD 325.00 | |
| Suunto Cobra Dive Computer Air Integrated Console RGBM Nitrox with Extra Battery | USD 200.00 | |
| Suunto Cobra Air Integrated Scuba Dive Computer Compass Console w/ Case Untested | USD 119.95 | |
| Suunto Zoop Dive Computer Wristwatch New battery Made in Finland | USD 89.00 |
Decision matrix
Use this matrix to narrow the format first, then read the product notes for the condition and accessory details that may change your decision.
| Use case | Product | Concrete fit | Main tradeoff |
|---|---|---|---|
| Air-integrated watch with transmitter | Oceanic Atom 2.0 | Watch format, Nitrox, and transmitter named together | Used condition and separate transmitter batteries |
| New air-integrated console | Suunto Cobra Dive | RGBM, Nitrox, Air and Gauge modes, plus extra battery | Console format rather than wristwatch format |
| Compass-equipped console | Suunto Cobra with Compass | Compass and protective case are named | Marked Untested |
| Wristwatch with refreshed battery details | Suunto Zoop | New battery and seal installed | Used condition and no recent use |
Product notes
Oceanic Atom 2.0 Dive Computer Watch Air Integrated Nitrox With Transmitter

The Oceanic Atom 2.0 is the clearest match for a diver who wants a watch-style computer with air integration and a transmitter in the same package. The description also names a USB download/upload cable, extension strap, watch-face protector, manuals, and a transmitter, so the included accessories are specific. The limitation is power for that transmitter: batteries for it need to be supplied separately, even though the computer has new batteries. It is also marked used. Choose this model when the wristwatch format and transmitter matter more than avoiding those two caveats.
Suunto Cobra Dive Computer Air Integrated Console RGBM Nitrox with Extra Battery

Suunto Cobra Dive suits a shopper who wants an air-integrated console and a defined set of modes. Its description names Air, Nitrox from 21% to 50%, and Gauge modes, along with RGBM decompression, real-time tank-pressure monitoring, an electroluminescent backlight, and an extra battery. The tradeoff is format: the title identifies a console, not a wristwatch. It is marked new, which gives it a concrete condition advantage over the used or untested choices. Choose it when the named console functions and extra battery outweigh the appeal of a watch display or compass.
Suunto Cobra Air Integrated Scuba Dive Computer Compass Console w/ Case Untested

Suunto Cobra Air Integrated Scuba Dive Computer Compass Console w/ Case Untested stands apart through two title-level details: a compass and a protective case. That combination makes it a match for a shopper who specifically wants console navigation equipment rather than a wristwatch format. The limitation is explicit and important: it is marked "Untested." It is also used, so the condition and untested status should be accepted together rather than treated as minor wording. Choose it for the compass-and-case combination; a new-condition Cobra is the better fit when named operating modes matter more.
Suunto Zoop Dive Computer Wristwatch New battery Made in Finland

Suunto Zoop is the simple wristwatch route in this group, and its title gives direct battery-related detail: a new battery. The description adds that a new seal was installed and says it was working well when last used. Those details give it a clear reason to choose for a wristwatch computer with refreshed battery and seal work. The limitation is its used condition and the fact that it has not been used recently. Select the Zoop when the wristwatch format and new-battery detail are the priority, while accepting that recent-use history is limited.
Final recommendation by use case
- Air-integrated watch with transmitter: Choose the Oceanic Atom 2.0 Dive Computer Watch Air Integrated Nitrox With Transmitter for its title-defined combination of watch format, Nitrox, air integration, and transmitter.
- New air-integrated console: Choose the Suunto Cobra Dive Computer Air Integrated Console RGBM Nitrox with Extra Battery when new condition and the named modes are central to the decision.
- Compass console: Choose the Suunto Cobra Air Integrated Scuba Dive Computer Compass Console w/ Case Untested when the compass and case outweigh the explicit untested status.
- Wristwatch with new battery: Choose the Suunto Zoop Dive Computer Wristwatch New battery Made in Finland when its wristwatch format and battery detail fit your priorities.
The listed-price spread makes the tradeoff clear, but it should not decide the purchase alone. Match the format and named feature first, then decide which condition caveat you are prepared to accept.