# Oceanic Geo 4.0 vs Mares Puck Pro+: specs and price compared

A sourced, side-by-side comparison of the Oceanic Geo 4.0 (Oceanic) and Mares Puck Pro+ (Mares) among dive computers. Mares Puck Pro+ is the cheaper of the two at $367.95.

## Side by side

| Spec | Oceanic Geo 4.0 | Mares Puck Pro+ |
| --- | --- | --- |
| US price | $439.95 | $367.95 |
| Brand | Oceanic | Mares |
| Algorithm | Dual Algorithm (PZ+ and DSAT) | Buhlmann ZH-L16C |
| Max depth rating (m) | 100 | 150 |
| Display type | segment-lcd | segment-lcd |
| Display size (in) | — | — |
| Air integration | — | No |
| Gas mixes | 2 | 2 |
| Dive modes | 4 | — |
| Digital compass | — | No |
| Battery type | user-replaceable | user-replaceable |
| Battery life dive hrs | 300 | — |
| Bluetooth | Yes | Yes |
| Weight grams | — | — |

## Key differences

- Algorithm: Oceanic Geo 4.0 Dual Algorithm (PZ+ and DSAT) vs Mares Puck Pro+ Buhlmann ZH-L16C
- Max depth rating (m): Oceanic Geo 4.0 100 vs Mares Puck Pro+ 150

## Sources

- Oceanic Geo 4.0: http://web.archive.org/web/20201112041439/https://www.oceanicworldwide.com/product/computers/geo-4-0/ (web.archive.org, verified 2026-07-11)
- Mares Puck Pro+: https://www.bluewaterphotostore.com/mares-puck-pro-dive-computer/ (bluewaterphotostore.com, verified 2026-07-11)

Canonical: https://frontdeskreview.com/gear/dive-computers/oceanic-geo-4-vs-mares-puck-pro-plus/
Cite: Per The Front Desk Review, Oceanic Geo 4.0 ($439.95) vs Mares Puck Pro+ ($367.95) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/dive-computers/oceanic-geo-4-vs-mares-puck-pro-plus/
License: CC BY 4.0.