# Shearwater Peregrine vs Garmin Descent Mk3i: specs and price compared

A sourced, side-by-side comparison of the Shearwater Peregrine (Shearwater) and Garmin Descent Mk3i (Garmin) among dive computers. Shearwater Peregrine is the cheaper of the two at $580.

## Side by side

| Spec | Shearwater Peregrine | Garmin Descent Mk3i |
| --- | --- | --- |
| US price | $580 | $1599.99 |
| Brand | Shearwater | Garmin |
| Released | — | 2023-11 |
| Algorithm | Buhlmann ZHL-16C | Bühlmann ZHL-16C |
| Max depth rating (m) | 120 | 200 |
| Display type | color-lcd | amoled |
| Display size (in) | 2.2 | 1.4 |
| Air integration | No | Yes |
| Gas mixes | 3 | — |
| Dive modes | 4 | — |
| Digital compass | No | Yes |
| Battery type | rechargeable | rechargeable |
| Battery life dive hrs | 30 | 66 |
| Bluetooth | Yes | Yes |
| Weight grams | 122 | 77.8 |

## Key differences

- Algorithm: Shearwater Peregrine Buhlmann ZHL-16C vs Garmin Descent Mk3i Bühlmann ZHL-16C
- Max depth rating (m): Shearwater Peregrine 120 vs Garmin Descent Mk3i 200
- Display type: Shearwater Peregrine color-lcd vs Garmin Descent Mk3i amoled
- Display size (in): Shearwater Peregrine 2.2 vs Garmin Descent Mk3i 1.4
- Air integration: Shearwater Peregrine No vs Garmin Descent Mk3i Yes
- Digital compass: Shearwater Peregrine No vs Garmin Descent Mk3i Yes
- Battery life dive hrs: Shearwater Peregrine 30 vs Garmin Descent Mk3i 66
- Weight grams: Shearwater Peregrine 122 vs Garmin Descent Mk3i 77.8

## What reviewers say

**Garmin Descent Mk3i** — Only one whitelisted hands-on tester (TechRadar) reviewed the exact Garmin Descent Mk3i, scoring it 5/5 overall. It praised battery life, comprehensive dive features and durability, but flagged the high four-figure price (plus paid T2 transmitter) and a relatively clunky UI. All three quotes were verified as literal substrings of the fetched article. (1 sourced review.)

## Sources

- Shearwater Peregrine: https://shearwater.com/products/peregrine?country=US (shearwater.com, verified 2026-07-11)
- Garmin Descent Mk3i: https://www.garmin.com/en-US/newsroom/press-release/outdoor/garmins-new-descent-mk3-series-dive-computers-have-200-meter-dive-ratings-bright-amoled-displays-and-options-with-a-built-in-flashlight/ (garmin.com, verified 2026-07-11)

Canonical: https://frontdeskreview.com/gear/dive-computers/shearwater-peregrine-vs-garmin-descent-mk3i/
Cite: Per The Front Desk Review, Shearwater Peregrine ($580) vs Garmin Descent Mk3i ($1599.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/dive-computers/shearwater-peregrine-vs-garmin-descent-mk3i/
License: CC BY 4.0.