Choosing dive computers & instruments is less about one universal winner than about matching the setup to the dive: a transmitter-inclusive configuration, a defined Teric case, an original Perdix without air integration, or a watch-style computer. The four choices also vary sharply in condition details and listed price. The absolute spread is $649.99, so a focused comparison matters more than simply picking the least expensive name.
Quick take
Start by choosing the configuration, then use price and condition to break ties. The transmitter bundle is the feature-led Teric choice. The Black 55mm Teric emphasizes case size, silicone band, Android compatibility, and a named accessory package. The OG Perdix is explicitly the no-AI version and carries visible wear details. The Suunto D5 brings the watch-computer format and a USB cable, with a recurring bubble under the screen protector. All four are used.
Listed-price comparison
| Product | Listed price | Price bar | What stands out |
|---|---|---|---|
| Shearwater Teric Dive Computer Black 55mm | USD 624.99 | Black 55mm Teric | |
| Shearwater Teric Dive Computer w/ Air Integration Transmitter, Charger | USD 899.99 | Transmitter and charger | |
| Shearwater Perdix Wrist Dive Computer - Black - Original OG, NO AI | USD 500.00 | Original OG, NO AI | |
| Suunto D5 Scuba Dive Watch Computer | USD 250.00 | Scuba dive watch computer |
Decision matrix
- Prioritize a transmitter-inclusive setup: Shearwater Teric Dive Computer w/ Air Integration Transmitter, Charger. The package names the transmitter and charger and includes wireless air integration plus Air, Nitrox, Trimix, Tech, CCR, and Freediving modes.
- Want Teric-specific physical details: Shearwater Teric Dive Computer Black 55mm. Its 55mm case, silicone band, and Android compatibility are explicit attributes.
- Want the original Perdix configuration: Shearwater Perdix Wrist Dive Computer - Black - Original OG, NO AI. The Gen 1 unit is without air integration and was used as a backup for tech diving.
- Want the lowest listed price in watch form: Suunto D5 Scuba Dive Watch Computer. The title specifies a scuba dive watch computer, and a USB charging cable is included.
Product notes
Shearwater Teric Dive Computer Black 55mm

Shearwater Teric Dive Computer Black 55mm is a practical fit when the defined 55mm case, silicone band, and Android compatibility matter. The package names a genuine charger, M/L band, case, documents, carabiner, and the computer, giving a clearer picture of included pieces. For a buyer who wants these Teric details, it is more targeted than the transmitter-inclusive bundle. The limitation is its used condition and no manufacturer warranty. Air integration is not specified for this configuration, so it should not be selected on the assumption that a transmitter is part of the package.
Shearwater Teric Dive Computer w/ Air Integration Transmitter, Charger

Shearwater Teric Dive Computer w/ Air Integration Transmitter, Charger is the direct match for a buyer who wants the transmitter named in the package. The package pairs it with a full-color AMOLED display, sapphire crystal, digital compass, Bluetooth, a wireless rechargeable battery, audible and vibration alerts, and Air, Nitrox, Trimix, Tech, CCR, and Freediving modes. The tradeoff is the highest listed price and used condition. Choose it when the transmitter and listed modes matter enough to outweigh that price.
Shearwater Perdix Wrist Dive Computer - Black - Original OG, NO AI

Shearwater Perdix Wrist Dive Computer - Black - Original OG, NO AI will appeal to someone specifically looking for the original Perdix configuration rather than an air-integrated setup. The Gen 1 unit is without air integration and was used as a backup for tech diving. Its middle price point suits shoppers who want the Perdix name without the transmitter-inclusive package. Limitations are concrete: scratches on the housing, a screen protector with possible surface marks, broken buckle hardware, no box, and only the computer. Blue bungees are offered as a possible strap approach. Choose it when that condition and configuration fit.
Suunto D5 Scuba Dive Watch Computer

Suunto D5 Scuba Dive Watch Computer is the straightforward pick for a watch-style dive computer at the lowest listed price. The D5 model is identified with a USB charging cable included. The tradeoff is a recurring air bubble under the screen protector at the bottom of the dial; readability is described as unaffected, but the visible issue remains part of the condition picture. It is used, so shoppers prioritizing a cleaner physical presentation may prefer a different configuration. For a watch format at the lower end of the listed range, the D5 title and included cable make the use case clear.
Final recommendation by use case
- Air integration and a named transmitter: Shearwater Teric Dive Computer w/ Air Integration Transmitter, Charger.
- Teric with 55mm case details: Shearwater Teric Dive Computer Black 55mm.
- Original no-AI Perdix: Shearwater Perdix Wrist Dive Computer - Black - Original OG, NO AI.
- Watch-style computer at the lowest listed price: Suunto D5 Scuba Dive Watch Computer.
Select by named configuration first, then let the specific condition tradeoff decide any close call.