How does the AI fish detection work?

The sonar interprets raw returns in real time and separates fish from branches, air bubbles and background noise. Detected fish are marked on the sonar view and on your saved 2D and 3D maps.

How deep can it read?

Deeper rates it to about 100 m for depth, bottom hardness and vegetation. Resolution is highest in shallow water, up to 5 m, where it is 4x finer for telling fish, breaks and obstacles apart.

Do I need a boat to use it?

No. It is cast from shore, a kayak or a small boat and connects to your smartphone over Wi-Fi, so there is no transducer to mount or cable to run.

What is different from earlier Deeper models?

The CHIRP+ 4 adds AI echo classification and fish on 2D and 3D maps. It keeps the triple-beam CHIRP sonar and the 100 m depth range of the line.

What do I need to use it?

A charged smartphone with the Deeper app and a fishing rod to cast the sonar. The phone serves as the display, so its screen and battery set your session length.

Is it worth it over a cheaper castable sonar?

If you fish from shore or a kayak and want fish marked for you plus map building, the AI and mapping are the reason to pick it. A basic castable sonar shows raw returns only and leaves interpretation to you.

Where is the Sondeur Deeper CHIRP+ 4 cheapest?

At JK FISHER, for $469.87, as of our latest check.

Deeper

Sondeur Deeper CHIRP+ 4

Best price now

$469.87at JK FISHERChecked Nov 11

Prices are checked against each store and labelled with when.

Visit JK FISHER

Deeper discount code →

Deeper

Sondeur Deeper CHIRP+ 4

Best price now

$469.87at JK FISHERChecked Nov 11

Prices are checked against each store and labelled with when.

Visit JK FISHER

Deeper discount code →

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Price facts

Last seen at $469.87 at JK FISHER on Nov 11.

Our take on the Sondeur Deeper CHIRP+ 4

The Deeper CHIRP+ 4 is a castable fish finder that sends sonar readings to your phone over Wi-Fi. It is the first Deeper model with built-in AI that labels sonar returns as fish, branches or air bubbles, and it plots detected fish on saved 2D and 3D maps. Three CHIRP frequencies with a triple-beam setup read bottom hardness, vegetation and depth to about 100 m, with 4x resolution in water up to 5 m deep. It suits shore and kayak anglers who want to scan water without a boat-mounted unit; it costs more than basic castable sonars and depends on your phone's screen and battery.

Best forShore and bank anglers scouting unknown waterKayak and small-boat fishing without a fixed sonarAnglers who want fish marked automatically instead of reading raw sonarMapping a swim or lake bottom over several sessions

Pros

AI labels fish, branches and bubbles on the sonar return
Detected fish appear on saved 2D and 3D maps
Three CHIRP frequencies with triple-beam coverage
Reads depth to about 100 m
4x resolution in shallow water up to 5 m
No boat or transducer mounting needed

Cons

Relies on your phone for display and battery life
Wi-Fi link can drop in poor conditions
AI identification is an aid, not a guarantee
Premium model within the castable sonar range

Sondeur Deeper CHIRP+ 4 prices at every store

JK FISHERNew
In stockShips from France · priced in EUR (€419.00) · duties may apply
$469.87Checked Nov 11
Visit JK FISHER

About the Sondeur Deeper CHIRP+ 4

The Deeper CHIRP+ 4 is a wireless, castable fish finder with built-in GPS. It sends sonar data to a smartphone and has AI that identifies fish. The AI interprets the sonar returns in real time and tells fish apart from background noise, branches and air bubbles.

It uses 3-frequency CHIRP sonar with a triple beam. It reads bottom hardness, vegetation and depth down to 100 meters in a single cast. In shallow water, up to 5 m, resolution is 4x higher, which makes fish, drop-offs and obstacles easier to tell apart.

You can build your own multilayer 2D and 3D bathymetric maps of each spot. Detected fish appear as icons on the saved 2D and 3D maps.

Type: Wireless castable fish finder with GPS
Sonar: 3-frequency CHIRP, triple beam
AI: Built-in fish detection and identification
Max depth: 100 m
Shallow water: 4x higher resolution up to 5 m depth
Mapping: Personal 2D and 3D maps showing bottom hardness, vegetation and depth
GPS: Built in
Compatibility: Smartphones (iOS and Android); Deeper accessories
Use: Shore casting, boat (drifting or stationary), ice fishing

Questions and answers

How does the AI fish detection work?: The sonar interprets raw returns in real time and separates fish from branches, air bubbles and background noise. Detected fish are marked on the sonar view and on your saved 2D and 3D maps.
How deep can it read?: Deeper rates it to about 100 m for depth, bottom hardness and vegetation. Resolution is highest in shallow water, up to 5 m, where it is 4x finer for telling fish, breaks and obstacles apart.
Do I need a boat to use it?: No. It is cast from shore, a kayak or a small boat and connects to your smartphone over Wi-Fi, so there is no transducer to mount or cable to run.
What is different from earlier Deeper models?: The CHIRP+ 4 adds AI echo classification and fish on 2D and 3D maps. It keeps the triple-beam CHIRP sonar and the 100 m depth range of the line.
What do I need to use it?: A charged smartphone with the Deeper app and a fishing rod to cast the sonar. The phone serves as the display, so its screen and battery set your session length.
Is it worth it over a cheaper castable sonar?: If you fish from shore or a kayak and want fish marked for you plus map building, the AI and mapping are the reason to pick it. A basic castable sonar shows raw returns only and leaves interpretation to you.
Where is the Sondeur Deeper CHIRP+ 4 cheapest?: At JK FISHER, for $469.87, as of our latest check.