Choosing among dive computers & instruments is really a setup decision: do you want a wrist computer, wireless tank-pressure information, or a hose-mounted console? The right shortlist changes quickly once air integration, condition, and included gear enter the picture.
These four choices cover that range. The listed price spread is USD 429.50 between the Suunto Cobra and Shearwater Teric, so compare the configuration you will actually use rather than focusing on price alone.
Quick take
Start with layout: decide between a wrist computer and a console-mounted configuration. Next, decide whether tank-pressure information should come through a transmitter or an air-integrated console. Condition and package contents are the remaining practical filters: one choice is New in Box, while the other three are Used.
Listed-price comparison
| Product | Listed price | Price bar |
|---|---|---|
| Shearwater Perdix Wrist Dive Computer | USD 500.00 | |
| Shearwater Teric Dive Computer Black 55mm | USD 624.99 | |
| Suunto EON Core Wrist Dive Computer | USD 450.00 | |
| Suunto Cobra Air-Integrated Dive Computer | USD 195.49 |
Decision matrix
- Wrist format without air integration: Shearwater Perdix. Its title explicitly says "NO AI," while its used condition and buckle issue are important tradeoffs.
- Wrist format with a transmitter: Suunto EON Core. The title names a transmitter and USB, and the description adds wireless tank pressure and a digital compass.
- Console-mounted air integration: Suunto Cobra. Its title states "Air-Integrated" and "Console," and the condition is New in Box.
- Multi-gas decompression: Shearwater Teric. Its stated 55mm case, silicone band, Android compatibility, and named charger/case package define its appeal.
Product notes
Shearwater Perdix Wrist Dive Computer - Black - Original OG, NO AI
The Shearwater Perdix is a wrist computer explicitly marked "NO AI," making it a direct fit for someone who does not want air integration in the computer itself. It is the original Gen 1 model, with 54 dives, used condition, housing scratches, screen-protector scratches, broken buckle arms, and no box. Blue bungees may be included, but the package centers on the computer. The limitation is physical readiness: the buckle issue may require a strap solution, and the visible wear matters if a clean exterior is important. Choose it for the stated no-AI configuration, not for an accessory-rich purchase.
Shearwater Teric Dive Computer Black 55mm
The Shearwater Teric is defined by a 55mm case, silicone band, and multi-gas decompression capability. Android is listed as a compatible operating system. The included package names the dive computer, a genuine charger, Shearwater case, documents, and carabiner, giving a clear reason to choose it when those Teric-specific details matter. Its limitation is the Used condition, and accessory needs should be judged against the named package rather than assumed. The highest listed price in this comparison makes the Teric a deliberate selection for its stated configuration, not a default choice for every diver.
Suunto Eon Core Wrist Dive Computer - White with Transmitter And USB
Suunto EON Core combines a wrist dive computer with a transmitter and USB. Its color display uses large digits, and the package also names wireless tank pressure, a digital compass, wireless mobile connection, a rechargeable battery, updatable software, and customizable settings. That is a direct fit for a diver who wants pressure and navigation information alongside a readable display. The limitation is the Used condition; the listed white finish is also part of the chosen appearance. Choose it when the transmitter-and-USB package fits the intended setup.
Suunto Cobra Air-Integrated Scuba Dive Computer - NEW in Box - Console
The Suunto Cobra is a New in Box, console-mounted air-integrated dive computer. It tracks tank pressure, depth, time, and no-decompression limits; nitrox compatibility, audible and visual alarms, a user-replaceable battery, and a large easy-to-read display are also named. Choose it when a hose-mounted console suits the equipment layout and the lowest listed price matters. The limitation is the format: it is not a wrist computer, so it answers a different setup question from the wrist-oriented EON Core and Perdix. Manuals and accessories are included, giving the package a defined starting point.
Final recommendation by use case
- For a wrist setup explicitly marked "NO AI": choose the Shearwater Perdix if its used condition and buckle damage fit your tolerance.
- For a wrist package centered on wireless pressure and navigation: choose the Suunto EON Core, whose title names a transmitter and USB.
- For a console-mounted configuration: choose the Suunto Cobra when air integration, New in Box condition, and the lowest listed price take priority.
- For the Teric configuration: choose the Shearwater Teric when its 55mm case, silicone band, and multi-gas decompression capability match your needs; its used condition and highest listed price make the decision more specific.
