Choosing dive computers & instruments is mainly a fit question: which form, condition, and named capability match your diving setup? The useful answer is not a universal winner. It is a clear way to sort console and watch designs, separate new from used condition, and then weigh the feature that matters most to you.
Quick take
Start with form and condition, then use the product descriptions to identify the capability that earns its place in your kit. The listed prices span four distinct choices, so a lower price may come with used or untested condition, while a higher price may reflect a different feature emphasis. The recommendations below keep those trade-offs separate rather than treating one attribute as automatically superior.
Listed-price comparison
| Product | Listed price | Price bar |
|---|---|---|
| Deepblu Cosmiq+ SCUBA Dive Computer - Purple | USD 289.95 | |
| Suunto Cobra Air Integrated Scuba Dive Computer Compass Console w/ Case Untested | USD 119.95 | |
| Suunto Cobra Air-Integrated Scuba Dive Computer - NEW in Box - Console | USD 195.49 | |
| Suunto D5 Scuba Dive Watch Computer | USD 250.00 |
Decision matrix
- New condition: Deepblu Cosmiq+ and Suunto Cobra Air-Integrated Scuba Dive Computer - NEW in Box - Console are marked New.
- Used condition: Suunto Cobra Air Integrated Scuba Dive Computer Compass Console w/ Case Untested and Suunto D5 Scuba Dive Watch Computer are marked Used. The Cobra title also explicitly says "Untested."
- Console format: Both Cobra titles identify a console, making them the direct comparison for shoppers seeking that presentation.
- Watch format: The D5 title identifies a watch computer, making it the direct match for that form.
- Sorting order: Use condition first, form second, and then the specific function or included item that matters most for your dives.
Product notes
Deepblu Cosmiq+ SCUBA Dive Computer - Purple

The Deepblu Cosmiq+ SCUBA Dive Computer - Purple is a strong fit for a diver who wants an emphasis on tracking dive profiles, calculating safety margins, and receiving real-time information. Its New condition and purple finish make the choice easy to identify. The description frames it for scuba and snorkeling and for experienced divers seeking a user-friendly interface. The limitation is its USD 289.95 listed price, the highest in this comparison. That makes its profile-and-information focus especially important to the buying decision rather than choosing it simply for a lower outlay.
Suunto Cobra Air Integrated Scuba Dive Computer Compass Console w/ Case Untested

Suunto Cobra Air Integrated Scuba Dive Computer Compass Console w/ Case Untested makes sense when a compass and an air-integrated console are the defining requirements. The title also calls out a protective case, giving the package a clear equipment-focused appeal. The model is marked Used, and the important limitation is explicit in its name: it is Untested. That condition separates it from the New Cobra entry, so an experienced diver should weigh the compass and case against the uncertainty attached to an untested unit. Its place at the lowest listed price adds another concrete reason to consider it, but not the only one.
Suunto Cobra Air-Integrated Scuba Dive Computer - NEW in Box - Console

Suunto Cobra Air-Integrated Scuba Dive Computer - NEW in Box - Console is the clearest console choice for someone who wants a New unit and named dive-monitoring functions. The description identifies air integration, tank-pressure, depth, time, and no-decompression-limit tracking, along with Nitrox compatibility, audible and visual alarms, and a user-replaceable battery. Its large display and original factory packaging support the console-oriented presentation. The trade-off is the hose-mounted console format: it suits a diver choosing that arrangement rather than someone specifically seeking a watch form. The listed package is a single unit, as indicated by its Unit Type attribute.
Suunto D5 Scuba Dive Watch Computer

Suunto D5 Scuba Dive Watch Computer is the natural match for shoppers who specifically want a watch computer rather than a console format. The Used unit is described as fully functional and includes a USB charging cable; its readability is described as unaffected by the little air bubble beneath the screen protector. Those details make the D5's form and included cable the main reasons to choose it. The limitation is also clear: the bubble returns after being squeezed out, and the unit is Used. The D5 therefore makes the most sense when the watch design matters more than avoiding a cosmetic screen-protector issue.
Final recommendation by use case
- For a New console with detailed air-integration functions: choose the Suunto Cobra Air-Integrated Scuba Dive Computer - NEW in Box - Console, which names tank-pressure tracking, Nitrox compatibility, and a user-replaceable battery.
- For a compass named directly in the title: choose the Suunto Cobra Air Integrated Scuba Dive Computer Compass Console w/ Case Untested, while keeping its Used and Untested condition central to the decision.
- For a watch computer: choose the Suunto D5 Scuba Dive Watch Computer, especially if its USB cable and watch form are more useful than the screen-protector bubble is concerning.
- For profile tracking and safety-margin information: choose the Deepblu Cosmiq+ SCUBA Dive Computer - Purple, whose description centers those functions and real-time information.
The shortest path is simple: pick the D5 for its watch format, select a Cobra for console-based air integration, favor the compass Cobra when navigation wording matters, or choose Deepblu when profile and safety-margin information is the deciding priority.