# Shearwater Peregrine vs Oceanic Geo 4.0: specs and price compared

A sourced, side-by-side comparison of the Shearwater Peregrine (Shearwater) and Oceanic Geo 4.0 (Oceanic) among dive computers. Oceanic Geo 4.0 is the cheaper of the two at $439.95.

## Side by side

| Spec | Shearwater Peregrine | Oceanic Geo 4.0 |
| --- | --- | --- |
| US price | $580 | $439.95 |
| Brand | Shearwater | Oceanic |
| Algorithm | Buhlmann ZHL-16C | Dual Algorithm (PZ+ and DSAT) |
| Max depth rating (m) | 120 | 100 |
| Display type | color-lcd | segment-lcd |
| Display size (in) | 2.2 | — |
| Air integration | No | — |
| Gas mixes | 3 | 2 |
| Dive modes | 4 | 4 |
| Digital compass | No | — |
| Battery type | rechargeable | user-replaceable |
| Battery life dive hrs | 30 | 300 |
| Bluetooth | Yes | Yes |
| Weight grams | 122 | — |

## Key differences

- Algorithm: Shearwater Peregrine Buhlmann ZHL-16C vs Oceanic Geo 4.0 Dual Algorithm (PZ+ and DSAT)
- Max depth rating (m): Shearwater Peregrine 120 vs Oceanic Geo 4.0 100
- Display type: Shearwater Peregrine color-lcd vs Oceanic Geo 4.0 segment-lcd
- Gas mixes: Shearwater Peregrine 3 vs Oceanic Geo 4.0 2
- Battery type: Shearwater Peregrine rechargeable vs Oceanic Geo 4.0 user-replaceable
- Battery life dive hrs: Shearwater Peregrine 30 vs Oceanic Geo 4.0 300

## Sources

- Shearwater Peregrine: https://shearwater.com/products/peregrine?country=US (shearwater.com, verified 2026-07-11)
- 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)

Canonical: https://frontdeskreview.com/gear/dive-computers/shearwater-peregrine-vs-oceanic-geo-4/
Cite: Per The Front Desk Review, Shearwater Peregrine ($580) vs Oceanic Geo 4.0 ($439.95) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/dive-computers/shearwater-peregrine-vs-oceanic-geo-4/
License: CC BY 4.0.