Choosing dive computers & instruments means deciding which trade-off matters most underwater: a named transmitter setup, a defined wrist format, a backup-oriented computer, or the lowest listed entry price. These four choices make that split clear, with two Teric configurations, an Original OG Perdix, and an open-box AquaLung i330R.
Quick take
The Shearwater Teric Dive Computer w/ Air Integration Transmitter, Charger is the clearest match for a combined computer-and-transmitter setup. The Shearwater Teric Dive Computer Black 55mm suits shoppers focused on a specified case size and wrist configuration. The Shearwater Perdix Wrist Dive Computer - Black - Original OG, NO AI is aimed at a separate backup role, while the AquaLung i330R Dive Computer NEW OPEN BOX is the straightforward price-led choice.
Listed-price comparison
| Product | Listed price | Price bar |
|---|---|---|
| Shearwater Teric Dive Computer Black 55mm | $624.99 | |
| Shearwater Teric Dive Computer w/ Air Integration Transmitter, Charger | $899.99 | |
| Shearwater Perdix Wrist Dive Computer - Black - Original OG, NO AI | $500.00 | |
| AquaLung i330R Dive Computer NEW OPEN BOX | $279.00 |
Decision matrix
- Named air-integration setup: Choose Shearwater Teric Dive Computer w/ Air Integration Transmitter, Charger. The title directly identifies both the transmitter and charger, while the feature set includes a digital compass, Bluetooth, rechargeable battery, and multiple dive modes.
- Defined wrist-computer format: Choose Shearwater Teric Dive Computer Black 55mm. The 55mm case, silicone band, M/L band, genuine charger, and case create a clearly specified configuration.
- Backup-oriented computer: Choose Shearwater Perdix Wrist Dive Computer - Black - Original OG, NO AI. Its no-AI configuration and stated backup-diving role are the key differentiators, though the used condition and wear matter.
- Lowest listed-price path: Choose AquaLung i330R Dive Computer NEW OPEN BOX. The i330R model and open-box condition identify a simple entry point without adding a transmitter to the named setup.
Product notes
Shearwater Teric Dive Computer Black 55mm
The Shearwater Teric Dive Computer Black 55mm has a defined wrist setup: the 55mm case, silicone band, Android compatibility, genuine charger, case, documents, and M/L band are all named. Multi-gas decompression is another concrete reason to choose it for a diver comparing more than a basic instrument. The limitation is the Used condition, so this choice suits shoppers comfortable with pre-owned gear. It makes sense when a 55mm Teric and its named charger matter more than having a transmitter included in the same configuration.
Shearwater Teric Dive Computer w/ Air Integration Transmitter, Charger
The Shearwater Teric Dive Computer w/ Air Integration Transmitter, Charger is the clearest fit for shoppers who want those components named together. Its feature set includes a full-color AMOLED display, sapphire crystal, digital compass, Bluetooth, wireless rechargeable battery, audible and vibration alerts, and a 200 m / 660 ft depth rating. Air, Nitrox, Trimix, Tech, CCR, and Freediving modes give it a specific use-case profile. The trade-off is the Used condition, so the choice is about matching the stated configuration rather than minimizing spend.
Shearwater Perdix Wrist Dive Computer - Black - Original OG, NO AI
The Shearwater Perdix Wrist Dive Computer - Black - Original OG, NO AI fits a diver seeking a separate backup computer without air integration. It is identified as an Original OG, no-AI model and has 54 dives associated with it. The limitations are concrete: the housing has scratches, the screen protector has uncertain wear beneath it, one buckle arm is broken, and no box is included. The sale is centered on the computer, with blue bungees offered, so it suits someone comfortable addressing the strap hardware rather than expecting a fully refreshed setup.
AquaLung i330R Dive Computer NEW OPEN BOX
The AquaLung i330R Dive Computer NEW OPEN BOX is the direct choice for a shopper who wants the i330R model at the lowest listed price in this group. Its condition is identified as NEW OPEN BOX, and it was powered on to verify function but never used in water. That gives the choice a clear condition story without implying prior dive use. The limitation is the same open-box, never-used-in-water status: shoppers who specifically want a pre-owned dive history may find the other configurations more aligned with that preference.
Final recommendation by use case
- Choose the Shearwater Teric with Air Integration Transmitter and Charger when the named combined setup is the deciding requirement.
- Choose the Shearwater Teric Black 55mm when the specified 55mm wrist format and silicone band fit your priorities.
- Choose the Original OG Shearwater Perdix for the stated backup role, provided the scratches and broken buckle arm are acceptable.
- Choose the AquaLung i330R when the $279 listed price is the main filter and NEW OPEN BOX condition suits your plans.
The listed-price spread is $620.99 from the AquaLung i330R to the air-integrated Shearwater Teric, so the right pick depends less on a universal winner than on whether your priority is configuration, wrist format, backup use, or entry price.
