Market IndexCurrent buying guideDive computersCheck a product
All marketsDive computersShearwater

Shearwater · Petrel 3

Petrel 3

A large-display technical dive computer built for open-circuit and rebreather use, including versions for direct rebreather integration
Market statusCurrent large-display technical and rebreather modelChecked Aug 15
Reference price$1,325 current standardCurrent Shearwater air-integrated collection
Product cyclecurrentRelease history under review
EvidenceWell supported5 publishers · 3 independent
Next full checkAug 22, 2026Price checks run sooner
01

Ready to buy

Confirm the exact machine and complete setup

The retained reference is $1,325 current standard. Fischer and monitor versions cost more. Confirm the exact rebreather interface and training requirement. Confirm the current configuration, included parts, support path, return terms and the work that must be preserved before ordering.

Buying stageMarket familiarity
02

Current market

The facts that change the ownership choice

Each line carries its own check date because price, software, specifications, and product cycle do not age at the same speed.

QuestionCurrent answerFreshnessBasis

Current price

$1,325 current standard

Fischer and monitor versions cost more. Confirm the exact rebreather interface and training requirement. Confirm the checkout price and package before paying.

Checked todayDirect source1 evidence item

Market branch

Large-display rebreather and technical
Checked todayOur synthesis2 evidence items

Purchase boundary

The standard, Fischer and monitor versions serve different rebreather connections and should not be treated as one package
Checked todayOur synthesis2 evidence items

Display

Large technical and rebreather display
Checked todayDirect source2 evidence items

Dive modes

Open-circuit trimix and CCR support
Checked todayDirect source2 evidence items

Versions

Standard, Fischer and monitor configurations
Checked todayDirect source2 evidence items

Battery

User-serviceable power workflow
Checked todayDirect source2 evidence items

Current verdict

A purpose-built rebreather platform

Petrel 3 is the right branch for trained divers whose rebreather or large-display setup specifically calls for it.

Checked todayOur synthesis7 evidence items
03

Other paths

The alternatives change what the Petrel 3 is worth

These are not generic competitors. Each one represents a different way to buy into the same market.

01lower upfront

Shearwater

Perdix 3

$1,295 current base
Best fit
Large-screen technical flagship
Tradeoff
A full technical mode set is not a reason for an untrained recreational diver to configure technical gases or decompression behavior independently
Open the source
02premium

Garmin

Descent X50i

$1,499.99 retained U.S. reference
Best fit
Large-screen connected technical
Tradeoff
The touchscreen, mapping and network features add price and complexity to a tool that still needs practiced physical-button use and a backup plan
Open the source
04

What changed

The product has a history

Older observations stay in the ledger when the current view changes. That lets a buyer tell the difference between an old complaint, an active issue, and a problem that was corrected.

  1. notable

    Current market position retained

    Petrel 3 was checked against its manufacturer record, the current category collection and the nearest ownership alternatives.

Price record

The price history starts here

Each amount stays tied to its source and capture date. Conflicting prices remain visible until the seller resolves them.

  1. $1,325 current standard

    Current reference priceA structured timeline will begin with the next source capture

05

Owner experience

What repeats after the purchase

Owner discussion repeatedly returns to exact rebreather interface rather than specifications alone.

These are self-reported experiences from a changing mix of owners, conditions and software versions. They identify questions to test, not a failure rate.
SignalWhat owners reportOur readEvidence

Exact rebreather interface

Divers repeatedly distinguish large-screen readability, watch form, owning a regulator for air integration, rental habits, backup gauges and the value of trying computers in person.

Model selection should follow the rebreather manufacturer, instructor and team configuration rather than a generic feature comparison.

1 evidence record
06

Sources

Why we believe the current view

The page separates what a source states directly from what we conclude across sources.

01
Petrel 3 product recordShearwater · identity

Shearwater identifies Petrel 3 as a large-display technical dive computer built for open-circuit and rebreather use, including versions for direct rebreather integration

Source type
manufacturer
Content hash
31ca3f036dd1f1d2…
Use
store excerpt
Open Shearwater
02
Petrel 3 current offerShearwater · price

$1,325 current standard was retained from the current manufacturer or authorized-market record with package and availability qualifications kept visible.

Source type
manufacturer
Content hash
beeb9787a15a5112…
Use
store snapshot
Open Shearwater
03
Petrel 3 support and specificationsShearwater · specification

Shearwater publishes setup, compatibility or service material that makes this purchase boundary explicit: The standard, Fischer and monitor versions serve different rebreather connections and should not be treated as one package

Source type
support
Content hash
001c5a2a4cd884ed…
Use
store excerpt
Open Shearwater
04
Current air-integrated computer collectionShearwater · price

The current collection preserves the live price and role ladder from Peregrine TX and Tern TX through Perdix 3, Petrel 3 and rebreather monitors.

Source type
retailer
Content hash
81d0f231bce4a8d7…
Use
store snapshot
Open Shearwater
05
Garmin Descent Mk3i in-water reviewDIVE Magazine · specification

An in-water editorial review separates display, messaging, transmitter dependence, watch functions and price after real dives.

Source type
editorial
Content hash
48d6026640941d86…
Use
store excerpt
Open DIVE Magazine
06
Suunto Ocean in-water reviewTechRadar · consensus

Club dives and daily wear show how display, battery, app, tank integration and topside features shape a modern dive-watch purchase.

Source type
editorial
Content hash
fd6689531ca0d830…
Use
store excerpt
Open TechRadar
07
Current Tern TX, Peregrine TX and Suunto owner comparisonr/scuba · consensus

Divers repeatedly distinguish large-screen readability, watch form, owning a regulator for air integration, rental habits, backup gauges and the value of trying computers in person.

Source type
community
Content hash
0216bf4c5de26132…
Use
store excerpt
Open r/scuba
08
Perdix 3 alternative recordShearwater · alternative

Perdix 3 represents the large-screen technical flagship branch at $1,295 current base.

Source type
manufacturer
Content hash
763058c4dcc88cd8…
Use
store excerpt
Open Shearwater
09
Descent X50i alternative recordGarmin · alternative

Descent X50i represents the large-screen connected technical branch at $1,499.99 retained U.S. reference.

Source type
manufacturer
Content hash
befe67687bf8686a…
Use
store excerpt
Open Garmin

The manufacturer record, current market collection, support material and independent category evidence were checked on August 15, 2026. The checkout package and regional support path still need verification. Owner reports are retained as bounded experience, not a reliability rate.

Researching another model?

Search the current market