Choosing dive computers & instruments means balancing underwater needs against complexity, included hardware, and condition. Price alone cannot answer that choice, because the four Shearwater entries differ in how they are described and packaged. The useful approach is to identify your diving use case first, then use the listed price as a filter.
Quick take
The fastest route is to decide your priority before comparing screens: bundled equipment, technical mode range, recreational simplicity, physical format, or price. The matrix below maps each priority to a named computer, while the notes add the concrete trade-offs. Because the entries range from used gear with visible wear to a new computer, condition deserves equal weight with the number on the price tag.
Listed-price comparison
The listed prices span an absolute $399.99, from the $500 Perdix to the $899.99 Teric transmitter bundle. That spread helps narrow the shortlist, but it does not determine capability.
| 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 | |
| Shearwater Research Peregrine Dive Computer | $580.00 |
Decision matrix
- Bundled air-integration setup: Shearwater Teric Dive Computer w/ Air Integration Transmitter, Charger.
- Technical and specialty mode range: The bundled Teric lists Air, Nitrox, Trimix, Tech, CCR, and Freediving modes.
- Straightforward recreational use: Shearwater Research Peregrine Dive Computer.
- Original Gen 1 backup role: Shearwater Perdix Wrist Dive Computer - Black - Original OG, NO AI.
- Defined Teric package: Shearwater Teric Dive Computer Black 55mm, with its listed 55mm case and accessory set.
Product notes
Shearwater Teric Dive Computer Black 55mm
With a 55mm case, silicone band, Android compatibility, and a package naming an M/L band, genuine charger, case, documents, and carabiner, the Shearwater Teric Dive Computer Black 55mm suits a diver who wants a defined Teric setup. Its description also identifies multi-gas decompression. The limitation is its used condition, while the named package is centered on the computer and charging and carrying pieces rather than the transmitter bundle described by another Teric entry. Choose it when that format and accessory set fit; choose elsewhere when the transmitter itself is central.
Shearwater Teric Dive Computer w/ Air Integration Transmitter, Charger
The Shearwater Teric Dive Computer w/ Air Integration Transmitter, Charger matches a setup built around the listed feature set. Its description names a full-color AMOLED display, sapphire crystal, digital compass, Bluetooth, wireless rechargeable battery, audible and vibration alerts, a 200 m / 660 ft depth rating, and Air, Nitrox, Trimix, Tech, CCR, and Freediving modes. The title also explicitly includes the transmitter and charger. The limitation is its used condition. Choose it when that broad mode list and bundled charging hardware drive the decision; a simpler computer may fit better otherwise.
Shearwater Perdix Wrist Dive Computer - Black - Original OG, NO AI
The Shearwater Perdix Wrist Dive Computer - Black - Original OG, NO AI suits a backup-oriented setup: its description identifies a Gen 1 Perdix and says it was used as a backup for tech diving. It also confirms the model without air integration. The limitation is physical wear: scratches are described on the housing, the screen protector is scratched, and the buckles have only one arm on the male end. The package is described as the computer alone, with blue bungees offered. Choose it when the original Perdix title and hands-on backup role matter; the damaged buckle hardware makes it a poor fit for someone wanting an intact strap arrangement.
Shearwater Research Peregrine Dive Computer
Shearwater Research Peregrine Dive Computer is aimed at a straightforward recreational experience. Its description emphasizes a simple, intuitive layout and names Air, Nitrox, 3 Gas Nitrox, and Gauge modes, alongside a full-colour 5.59 cm LCD screen. The limitation is its stated recreational focus: the description presents simplified modes, whereas the bundled Teric explicitly lists Trimix, Tech, CCR, and Freediving as well. Choose the Peregrine when easy navigation and the defined four-mode layout matter more than that broader technical-mode list. Its new condition adds a separate reason to prefer it over the used choices.
Final recommendation by use case
- For a transmitter-led setup: Choose the Shearwater Teric Dive Computer w/ Air Integration Transmitter, Charger at $899.99. The named transmitter and charger make the purchase decision straightforward.
- For simplified recreational diving: Choose the Shearwater Research Peregrine Dive Computer at $580.00 when its simple layout and recreational mode set match your plans.
- For the lowest listed price and a backup role: Choose the Shearwater Perdix Wrist Dive Computer - Black - Original OG, NO AI at $500.00, provided its described wear and buckle condition fit your expectations.
- For the other Teric package: Choose the Shearwater Teric Dive Computer Black 55mm at $624.99 when its named case size and accessory set are the deciding details.
The practical shortlist is therefore clear: the bundled Teric is the dedicated air-integration choice, the Peregrine favors simpler recreational diving, the Perdix is the lowest-price backup-oriented computer, and the 55mm Teric offers a defined middle package.
