Oceanic

Oceanic Pro Plus 4

Oceanic's console-style flagship. Appears to have been succeeded by the Pro Plus X in current listings.

Open BLE sync (libdivecomputer)

Syncs wirelessly with third-party apps (Subsurface, Currents, etc.), not just the manufacturer app.

Oceanic Pro Plus 4
3.0Comparison Score
$789
Buy on AmazonBuy on Scuba.com
Released2019
Max depth rating100m
AlgorithmModified Haldanean / DSAT / Pelagic Z+
Air integrationhose
Wirelessbluetooth
DisplayLarge-digit LCD with OceanGlo/SmartGlo backlighting
Batteryuser-replaceable
Digital compassNo
Gas typesair, nitrox
Gas switches3
CCR capableNo

"Gas switches" is how many different mixes this computer can be programmed to switch between mid-dive, mostly relevant for technical/staged-decompression diving. It doesn't tell you which gas types (air, nitrox, trimix) are supported. See Gas types and the product description above for that.

Pros
  • Diver-replaceable battery with hot-swap capability, rated for 300 hours
  • 22% larger digits than the previous Pro Plus 3
  • Bluetooth sync to Oceanic's companion app despite being a traditional hose-mounted console
Cons
  • Digital compass is a separate add-on version, not standard
  • Traditional hose-mounted console design, bulkier than wrist computers
  • Retailer listings suggest it's being phased out in favor of the newer Pro Plus X
Diver community sentiment
Mixed opinions

Divers on Scubaboard consistently praise the Pro Plus 4's large high-contrast display, simple two-button menu, "amazing" battery life, and air-integrated console format, with several owners calling it a reliable backup alongside pricier computers. The more serious recurring complaint is hardware reliability: multiple threads describe owners going through two or three replacement units under warranty for glitches, erratic alarms, and depth/elevation sensor errors. Huish Outdoors' warranty service is generally described as responsive, which tempers frustration. A detailed 200-dive r/scuba owner review echoes this: strong praise for the screen, backlight, glove-friendly buttons, and value versus a $2,000+ Garmin, but flags a fixed 24-hour no-fly time regardless of dive profile, a clunky companion app that needs two separate paid services just to get logs onto a computer, one unit that needed a warranty repair for a popped button, and a second unit whose cracked screen took over 3 months to repair due to parts backorder.

Scubaboard: Oceanic ProPlus-4 PDC threadScubaboard: Pro Plus X/4 owner impressionsScubaboard: Oceanic ProPlus 4 depth sensor issuer/scuba: Oceanic Pro Plus 4 review after 200 dives

Summarized from public forum discussion (Scubaboard, Reddit, and similar), not a survey we ran ourselves. See the linked threads for the original conversations.

The Pro Plus 4.0 is Oceanic’s traditional hose-mounted console computer, built around large, high-contrast digits rather than a compact wrist form factor. Some retailers now list a successor, the Pro Plus X, suggesting this model is nearing the end of its run.