Deeper Smart Fishfinder 3.0

Deeper Sonar / Deeper Smart Fishfinder 3.0
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Deeper Smart fishfinder

Deeper Smart Fishfinder 3.0

This groundbreaking product is an ideal entry into the world of smart sonar fishing. As the first ever smart sonar compatible with Android and iOS, the Deeper Fishfinder has revolutionised fishing. Simply cast it into the water and, via its bluetooth connection, it will relay an array of data straight to your smartphone; the depth and temperature of the site you’re fishing, the structure of the bottom, what vegetation there is, and (most importantly) where the fish are. Weighing just 3.5oz / 100g and measuring only 2.5ins / 65mm, the Deeper Fishfinder is designed to be easily castable, making it ideally suited for fishing from banks, bridges, and docks. It is also great for ice, kayak and float tube fishing.
With a range of 40m / 130ft, and scanning to a depth of 40m / 130 ft, the Deeper Fishfinder 3.0 is perfectly suited to keen fishers who want to explore the amazing opportunities of smart sonar fishing.
Advantages: instant sonar readings direct to your phone, works for a range of fishing types
Best option for: Keen enthusiasts

Track Depth

The Fishfinder 3.0 is powerful enough to perfectly scan both salt and fresh waters at depths ranging from 1.5 ft (0.5 m) down to 130 ft (40 m)

Measure Water Temperature

Locate the perfect biting conditions by monitoring water temperature levels. The Fishfinder 3.0’s sensors relay precise temperature data.

Explore Bottom Structure

Maximise your catch rate by analysing underwater structure and features. Learn more about the habits and behaviour of your targets, then hone your skills.

Map New Spots

Mark new fishing spots, create bathymetric maps of your favourite waters in boat mode and save productive ice holes in ice fishing mode.

How does the Deeper Smart Fishfinder 3.0 work

Lake map

Do more with your lake maps

New feature: Introducing Lakebook – the Deeper Data Manager. Now you can plan your next fishing trip with all your maps available to view on your computer screen. Then download your GPS and depth data. Plus, whatever happens to your phone, all your bathymetric maps are still accessible. This new piece of Deeper software is easy to use – it automatically transfers your maps from your mobile app. So just login to lakebook and start doing more with your maps.

Click here for a step-by-step guide to using Lakebook.

Deeper Smart fishfinder

A portable castable Fish Finder

Designed to fit in any standard tackle box, the Fishfinder 3.0 is portable and easy to cast with no need for special line or equipment. It weights only 3.5oz / 100 g and is 2.5”/ 65 mm in diameter.

Deeper sonar

Bluetooth Connection

The Deeper Smart Fishfinder 3.0 uses a Bluetooth connection to transfer the sonar data it picks up direct to your smart device. This Bluetooth connection has a casting range of up to 130ft/40 m. It does not require a mobile or internet connection to use, and no data plan is required.

Underwater structure

Exploring Underwater Structures

Receive real time data on exactly what’s going on under the water and discover features that give optimum fish bite: sunken timber, rocks and pits, vegetation and bait fish.

Deeper App

Choose your sonar beam

The Fishfinder 3.0 has a dual frequency sonar built in. Choose either narrow beam (290 kHz / 15°) – great for high accuracy scanning – or wide beam (90 kHz / 55°) – ideal for searching wide areas.

Deeper App

Pair with the powerful Deeper App

The Deeper App let’s you manage and explore all the data sent by your Fishfinder 3.0. It is compatible with more than 9,800 iOS and Android devices and can operate in online and offline modes. It is packed with lots of great features for your fishing trip: a Solunar Forecast Calendar, Fishing Notes, Offline Maps, Weather Forecasts, Camera, Social Media Sharing, Day/Night Screen Color Modes and much more. The Deeper App is available in multiple languages and is free to download and update.

Deeper awards

Award-winning technology

Deeper’s range of smart sonars have picked up major international awards and are gaining ground among the world’s most prestigious and popular echo sounder producers. The Fishfinder 3.0 was the first ever fishing gadget to win a prestigious CES Best of Innovation Award, picking up the prize in the Wireless Handset Accessories category in 2016.

Deeper’s most recent awards include the John Dunphy Award for Innovation from the Australian Fishing Trade Association (AFTA), Best New Accessory at the European Fishing Tackle Trade Exhibition (EFTTEX), and Best Electronic Device for modern angling at China Fish. These smart devices have also been named Editor’s Choice by Fish Alaska, Anglers Mail (UK) and the Russian Edition of PC Magazine.

Size: 2.5″/ 6.5 cm diameter
Compatibility: From iOS 8.0 and Android 4.0 to the latest iOS and Android devices
Construction: ABS
Weight: 3.5 oz / 100 grams
Connection: Wireless Bluetooth connection
Bluetooth Range: Up to ~140 ft – 160 ft / ~40-50 meters. Range depends on operating system and model of smartphone / tablet used.
Depth Range Max/Min: Max: 130 ft (40 m), Min: 2 ft (0.5 m) narrow beam, 4.3 ft (1.3 m) wide beam
Temperature: Water temperature Sensor
Temperature unit: Celsius / Fahrenheit
Operational Temperature: -4F to 104F/ -20C to 40C
Battery: Lithium Polymer, 3.7V Rechargeable; lasts for 6 hours of non stop usage; takes 2 hours to fully charge.
Power Adapter: Compatible with 110V / 240V. Micro USB.
Sonar type: Dual beam
Frequency: 290 kHz (15°) / 90 kHz (55°)
Color: Black
Fishfinder 3.0 PRO PRO +
Depth, temperature and fish location Yes Yes Yes
Shore Fishing Yes Yes Yes
Ice Fishing Yes Yes Yes
Mapping by boat Yes Yes Yes
Mapping from the shore No No Yes
3.5oz / 100g and 2.5ins / 65mm


Yes Yes Yes
WiFi connection for rock solid connectivity No Yes Yes
Extended casting range – 330ft / 100 m No Yes Yes
Extended scanning depth – 260ft / 80 m No Yes Yes
In-built GPS No No Yes
Higher scanning frequency and resolution No Yes Yes
8x extended dynamic range No Yes Yes