Mares
Mares Fusion 52X
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Best Dive Regulators · head-to-head
Mares Fusion 52X vs Oceanic Zeo FDXi
A sourced, side-by-side comparison. Mares Fusion 52X is cheaper at —. Every spec and price links to its source.
Oceanic
Oceanic Zeo FDXi
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec |  Mares Fusion 52X |  Oceanic Zeo FDXi |
|---|---|---|
| US price | — | — |
| Brand | Mares | Oceanic |
| Released | — | — |
| First stage type | diaphragm | — |
| Balanced | Yes | — |
| Din or yoke | DIN and INT (yoke), convertible | DIN and yoke |
| Hp lp ports | — | — |
| Cold water rated | Yes | Yes |
| Environmentally sealed | Yes | — |
| Adjustable venturi controls | Twin Power flow-control switch | — |
| Weight (g) | — | — |
Sources — Mares Fusion 52X: mares.com (verified 2026-08-11). Oceanic Zeo FDXi: oceanicworldwide.com (verified 2026-08-11).
What's the difference between the Mares Fusion 52X and Oceanic Zeo FDXi?
Where the two actually differ on the specs we track (1 of 8). Matching specs are omitted.
- Din or yoke: Mares Fusion 52X DIN and INT (yoke), convertible vs Oceanic Zeo FDXi DIN and yoke