Choosing among dive computers & instruments comes down to one central question: do you need a named air-integration package and technical modes, or would a simpler scuba computer and lower listed price suit the way you dive? These four choices also differ in condition, included accessories, physical configuration, and intended use.
Quick take
- For air integration in the package: Shearwater Teric Dive Computer w/ Air Integration Transmitter, Charger explicitly names the transmitter and wireless air integration.
- For a 55mm configuration: Shearwater Teric Dive Computer Black 55mm lists a 55mm case, silicone band, multi-gas decompression, and an included charger and case.
- For an original no-AI Perdix: Shearwater Perdix Wrist Dive Computer - Black - Original OG, NO AI is described as a backup used for tech diving, with visible wear and broken buckles.
- For new scuba and snorkeling use: Deepblu Cosmiq+ SCUBA Dive Computer - Purple is listed as new and focuses on dive-profile tracking, safety-margin calculations, and real-time information.
Listed-price comparison
| Dive computer | Listed price | Price position |
|---|---|---|
| Shearwater Teric Dive Computer Black 55mm | USD 624.99 | |
| Shearwater Teric Dive Computer w/ Air Integration Transmitter, Charger | USD 899.99 | |
| Shearwater Perdix Wrist Dive Computer - Black - Original OG, NO AI | USD 500.00 | |
| Deepblu Cosmiq+ SCUBA Dive Computer - Purple | USD 289.95 |
The bars show relative listed-price position, not capability or suitability.
Decision matrix
- Choose the Teric with transmitter when wireless air integration, a digital compass, and named Air, Nitrox, Trimix, Tech, CCR, and Freediving modes are central to the decision.
- Choose the black Teric when the 55mm case, silicone band, Android compatibility, and multi-gas decompression are the relevant configuration details.
- Choose the original Perdix when "NO AI" and a backup role for tech diving matter more than a complete accessory package or cosmetic condition.
- Choose the Deepblu Cosmiq+ when new condition and a scuba-and-snorkeling focus matter more than a transmitter bundle.
Product notes
Shearwater Teric Dive Computer Black 55mm
Choose this configuration if a 55mm case, silicone band, and multi-gas decompression are the details that matter most. The package description also names an M/L band, genuine charger, Shearwater case, documents, and carabiner, giving the purchase a clearly described accessory set. Its listed Android compatibility is another concrete detail for shoppers using that operating system. The trade-off is the USD 624.99 price and used condition; the attributes also state no manufacturer warranty. The description cautions that items not listed are not included, so it is a defined package rather than a reason to assume extra accessories.
Shearwater Teric Dive Computer w/ Air Integration Transmitter, Charger
This is the clearest match when air integration is a non-negotiable part of the setup: the title names the transmitter, and the description adds a full-color AMOLED display with sapphire crystal, wireless air integration, Air, Nitrox, Trimix, Tech, CCR, and Freediving modes, a digital compass, Bluetooth connectivity, a rechargeable battery, audible and vibration alerts, and a 200 m / 660 ft depth rating. The package also names a wireless charging station and black/blue zippered case. Its concrete limitation is the USD 899.99 price and used condition, so shoppers must weigh the bundled capability against the highest listed price.
Shearwater Perdix Wrist Dive Computer - Black - Original OG, NO AI
The original OG Perdix makes sense for a shopper deliberately seeking a no-air-integration computer, especially if the intended role is a backup for tech diving. The description identifies a used unit with 54 dives and says it has not been sent for repair; its listed model is Perdix and country of origin is Canada. The limitation is physical condition: scratches are described on the housing, the screen protector has scratches, and the buckles are broken with only one arm on the male end. It comes at USD 500.00, and the package is described as the computer alone, with blue bungees offered.
Deepblu Cosmiq+ SCUBA Dive Computer - Purple
For scuba and snorkeling shoppers prioritizing a new-condition computer and the lowest listed price, the purple Cosmiq+ is the straightforward fit at USD 289.95. Its description focuses on tracking dive profiles, calculating safety margins, and providing real-time information, with a user-friendly interface. The limitation is fit for feature-specific shoppers: unlike the separately titled Teric package, this title does not name an air-integration transmitter, and its description does not identify the multi-gas and CCR/Trimix modes listed for that Teric. Choose Deepblu when those named features are not the deciding factor.
Final recommendation by use case
For a setup where the transmitter is part of the purchase, choose the Shearwater Teric Dive Computer w/ Air Integration Transmitter, Charger because that capability is explicit in both the title and description. For a defined 55mm configuration with a silicone band, Android compatibility, and named accessories, choose Shearwater Teric Dive Computer Black 55mm.
The Shearwater Perdix Wrist Dive Computer - Black - Original OG, NO AI fits a shopper who specifically wants the original no-AI format and accepts scratches, broken buckles, and a computer-only package. For new condition, scuba and snorkeling focus, and the lowest listed price, choose the Deepblu Cosmiq+ SCUBA Dive Computer - Purple.
