Choosing dive computers & instruments for scuba is a balancing act: do you want a clearly described set of dive modes, a specific model and case format, a new unit, or a bundle with named extras? The four choices here include two Peregrines, a Teric, and an Oceanic Atom 3.1, so the decision is about matching a concrete priority to your scuba plan.
Quick take
Start with the feature or format that will actually guide your choice. The Shearwater entries split between Adventures Edition wording and a more detailed Peregrine description. The Teric centers on a named case size and package components, while the Oceanic entry emphasizes its Atom 3.1 model and full-kit contents. Condition also divides the group: the two Peregrine entries are marked New, while the Teric and Oceanic entries are marked Used.
Listed-price comparison
The listed-price spread is $374.99, from the Oceanic entry to the Teric. The bars show relative listed price only; they do not indicate performance or quality.
| Product | Listed price | Price bar |
|---|---|---|
| Shearwater Research Peregrine Adventures Edition Dive Computer | USD 499.99 | |
| Shearwater Research Peregrine Dive Computer | USD 580.00 | |
| Shearwater Teric Dive Computer Black 55mm | USD 624.99 | |
| Oceanic Dive Computer - USed, 4-5 Dives Only | Full Kit | Factory Screen Pro | USD 250.00 |
Decision matrix
- Price-first shopping: Oceanic is at the low end, Teric is at the high end, and the two Peregrine entries sit between them.
- Condition-first shopping: Shearwater Research Peregrine Adventures Edition and Shearwater Research Peregrine are marked New; Shearwater Teric Dive Computer Black 55mm and the Oceanic computer are marked Used.
- Model wording: The choices are Adventures Edition Peregrine, Peregrine, Teric Black 55mm, and Oceanic Atom 3.1.
- Description emphasis: P1 focuses on wrist use, decompression calculations, and dive profiling; P2 spells out modes; P3 names included components; P4 details a bundle of accessories.
Product notes
Shearwater Research Peregrine Adventures Edition Dive Computer

Shearwater Research Peregrine Adventures Edition Dive Computer is a sensible match for a diver who wants the Peregrine model in a new, wrist-worn format. Its description specifically points to decompression calculations and dive profiling, and the attributes identify one unit made in Canada. The trade-off is the listed price: $499.99 is $249.99 above the Oceanic amount in this comparison. That makes the title's Adventures Edition wording and the New condition the concrete reasons to favor it over the lower-priced used Oceanic choice. Pick it when those details matter more than a bundled set of accessories.
Shearwater Research Peregrine Dive Computer

Shearwater Research Peregrine Dive Computer is the clearest fit for someone who wants an explicitly described multi-gas computer. Its description names four modes-Air, Nitrox, 3 Gas Nitrox, and Gauge-and specifies a full-colour 5.59cm LCD. The computer is marked New, and the model identifiers are included with the product details. The limitation is the $80.01 gap over the other Peregrine entry. That extra price distance is easier to justify when the named modes and screen description are central to the buying decision; otherwise, the Adventures Edition title offers a different route to a new Peregrine.
Shearwater Teric Dive Computer Black 55mm

Shearwater Teric Dive Computer Black 55mm stands apart by naming the Teric model and a 55mm case size in the title. The description lists a genuine charger, case, documents with carabiner, and M/L band, while the attributes identify a silicone band and Android as the compatible operating system. Those details make it a specific match for someone shopping around the Teric format. Its limitation is condition: it is marked Used, and the description warns that accessories not listed are not included. The named package therefore matters when deciding whether this $624.99 computer fits your setup.
Oceanic Dive Computer - USed, 4-5 Dives Only | Full Kit | Factory Screen Pro

Oceanic Dive Computer - USed, 4-5 Dives Only | Full Kit | Factory Screen Pro is built around the Oceanic Atom 3.1 model and a named bundle. The description lists an extra unused strap, extra battery, battery-change tool, PC interface cable, CD, box, and paperwork alongside the computer. That makes the package contents its clearest reason to choose. The limitation is that the unit is marked Used, even though the description says it was used on only 4-5 dives and retains the factory screen protector. Choose it when the Atom 3.1 title and the listed extras matter more than the New condition attached to the Peregrine entries.
Final recommendation by use case
- For the lowest listed-price use case: Choose the Oceanic Atom 3.1 entry. It occupies the bottom of the price range and pairs that position with full-kit wording and named extras.
- For a new Peregrine under the Adventures Edition title: Choose Shearwater Research Peregrine Adventures Edition Dive Computer. Its title and New condition align directly with that preference.
- For an explicitly described mode set: Choose Shearwater Research Peregrine Dive Computer. Air, Nitrox, 3 Gas Nitrox, and Gauge are named in its description.
- For a Teric-specific use case: Choose Shearwater Teric Dive Computer Black 55mm. The Teric model and 55mm case size are part of the title, with a charger and case also named in the package description.
The simplest decision is to choose by priority: price and bundle contents point to Oceanic, a new Peregrine title points to the Adventures Edition, detailed recreational modes point to the standard Peregrine, and the Teric model points to Shearwater's 55mm entry.