Choosing among dive computers & instruments is a setup decision, not a search for one universal winner. Start by deciding whether model identity, included hardware, technical modes, or the lowest listed price matters most. All four computers here are listed as used, but their included equipment and model descriptions point to distinctly different buying paths.
Quick take
The Shearwater Teric with Air Integration Transmitter is the clearest match for a transmitter-equipped setup and the broadest named mode list. The standard Teric offers a defined 55mm configuration with a silicone band, while the original Shearwater Perdix focuses on model identity and a lower price than either Teric entry. The Oceanic Atom 3.1 stands apart with a Full Kit title and a long accessory list. Choose the required setup first, then use price to settle close calls.
Listed-price comparison
The four listed prices cover a $649.99 spread. The bars show each price's relative position in this comparison, not a performance ranking.
| Computer | Listed price | Price bar |
|---|---|---|
| Shearwater Teric Dive Computer Black 55mm | USD 624.99 | |
| Shearwater Teric with Air Integration Transmitter, Charger | USD 899.99 | |
| Shearwater Perdix Wrist Dive Computer - Original OG | USD 500.00 | |
| Oceanic Dive Computer - USed, 4-5 Dives Only | Full Kit | Factory Screen Pro | USD 250.00 |
The absolute price gap is useful context: the Teric transmitter bundle sits $649.99 above the Oceanic entry. That difference reflects the named bundle and equipment included, not a blanket judgment about which computer suits every diver.
Decision matrix
- Air-integration bundle: Shearwater Teric with Air Integration Transmitter, Charger. The title explicitly names the transmitter and charger.
- Defined Teric configuration: Shearwater Teric Black 55mm. The listed setup includes a 55mm case and silicone band.
- Original Perdix model: Shearwater Perdix Wrist Dive Computer - Original OG. The description identifies it as an OG Gen 1.
- Accessory-focused lower-price route: Oceanic Atom 3.1 Full Kit. The description names an extra strap, battery, tool, interface cable, CD, box, and paperwork.
Product notes
Shearwater Teric Dive Computer Black 55mm
The Shearwater Teric Dive Computer Black 55mm suits someone who wants a defined Teric configuration with a clear equipment profile. Its listed 55mm case, silicone band, Android compatibility, genuine charger, case, documents, and M/L band give the choice specific physical and included-item details. That makes it easier to distinguish from the separate Teric entry built around a transmitter. The limitation is the listed Used condition, along with the description's reminder that items not listed are not included. Choose this Teric when the 55mm configuration and case-and-charger package are the priority.
Shearwater Teric Dive Computer with Air Integration Transmitter
The Shearwater Teric Dive Computer w/ Air Integration Transmitter, Charger is the most explicit match for a transmitter-equipped setup. Its description names wireless air integration, a full-color AMOLED display, sapphire crystal, digital compass, Bluetooth connectivity, audible and vibration alerts, wireless charging, and Air, Nitrox, Trimix, Tech, CCR, and Freediving modes. It also lists a 200 m / 660 ft depth rating. The concrete limitation is its USD 899.99 listed price, the highest in this comparison. Select it when the named transmitter bundle and listed modes align with the dive plan.
Shearwater Perdix Wrist Dive Computer - Original OG
For a diver drawn to the original Shearwater format, the Shearwater Perdix Wrist Dive Computer - Original OG has a clear identity: the description calls it an OG Gen 1 and says it was used as a backup for tech diving. The trade-off is condition rather than ambiguity. The housing has scratches, the screen protector may conceal scratches, the buckles are broken with one arm on the male end, and the sale includes the computer without a box or other gear. Its USD 500.00 price is below both Teric entries. Pick it for the original Perdix model, not a transmitter-equipped setup.
Oceanic Atom 3.1 Dive Computer - Full Kit
The Oceanic Atom 3.1 Dive Computer - Full Kit makes the clearest case for a lower listed price and a named accessory package. The description includes an Oceanic dive computer, extra strap, extra battery, battery-change tool, PC interface cable, CD, box, and paperwork. The listed condition is Used, and the model identity is Oceanic Atom 3.1 rather than either Shearwater line; that is the key limitation for anyone committed to a Teric or Perdix. At USD 250.00, it is the lowest-priced entry here. Choose it for the stated kit contents and lower starting price.
Final recommendation by use case
- For a transmitter-led setup: choose the Shearwater Teric with Air Integration Transmitter, Charger because that exact bundle is named in the title.
- For a defined Teric configuration: choose the Shearwater Teric Dive Computer Black 55mm, anchored by its listed case size and band material.
- For the original Perdix identity: choose the Shearwater Perdix Wrist Dive Computer - Original OG, while accounting for its documented wear and broken buckles.
- For the lowest listed price with a broad accessory package: choose the Oceanic Atom 3.1 Dive Computer - Full Kit.
If the required setup is not fixed, the $649.99 spread makes the Oceanic and Teric transmitter bundle fundamentally different decisions. If it is fixed, the product title and included equipment make the choice more straightforward than price alone.
