Oceanic

Oceanic Delta 5 / EDX (DIN)

A current, purpose-built cold-water mid-tier reg from Oceanic with a sealed, over-balanced diaphragm first stage.

Environmentally sealed, cold-water rated

Sealed first stage keeps water and ice crystals out of the internal mechanism, the standard for diving below 50°F/10°C.

Oceanic Delta 5 / EDX (DIN)
$614.95
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Released—
First stagediaphragm
BalancedYes
Environmentally sealedYes
Cold-water ratedYes
ConnectionDIN
Max pressure—
HP / LP ports2 / 4
Adjustable 2nd stageYes
Weight—
Nitrox-ready (EAN40)Yes
Octo included—

"HP / LP ports" is the number of high-pressure and low-pressure ports on the first stage, which caps how many accessories (transmitter, SPG, inflator, second second-stage) you can run at once.

Pros
  • Purpose-built for cold water with a sealed, over-balanced diaphragm first stage and heat exchanger, not a warm-water reg retrofitted for cold
  • Dynamic Airflow Adjustment control plus a dive/pre-dive switch give real diver-adjustable breathing control
  • Solid mid-range pricing for a sealed, balanced, cold-water-rated set
Cons
  • Weight isn't published anywhere we could find for this specific first-stage/second-stage pairing, hard to compare against competitors on portability
  • DIN pressure rating isn't clearly stated by Oceanic for this model, unusual for a modern spec sheet
  • Independent long-form reviews are thin compared to competitors, most available write-ups read as promotional

The Delta 5/EDX is Oceanic’s current mid-tier, cold-water-focused reg, built around a sealed and over-balanced diaphragm first stage. It’s positioned as the step up from Oceanic’s warm-water-oriented entry regs for divers who actually need cold-water performance, without moving all the way up to the Zeo.