Deeper PRO+ 2 Castable Wi-Fi Sonar Review

Our Verdict: Deeper PRO+ 2 Castable Wi-Fi Sonar

A screenless castable ball with an Ice Flasher app mode, handy if you already own it, but cold cuts its battery and you fish off your phone.

A wireless sonar ball with no screen or cable that you lower through the hole and read on your phone, with a dedicated Ice Flasher mode in the free app.

What's the bottom line?

One unit covers shore, kayak, and ice, so it earns its keep across seasons.

Cheaper than the dedicated flashers and it adds GPS mapping via the app.

I love that one ball covers open water and the ice, but the battery faded fast in the cold so I kept it in my jacket pocket between drops.

James, Top-Notch field tester

Reasons to buy:

• One sonar for shore, kayak, and ice
• No cable, bracket, or screen to rig
• Free app with Ice Flasher mode and GPS
• Good all-round value

Reasons to avoid:

• Battery drops sharply in the cold
• You fish off your phone screen
• Not purpose-built for ice

Our Analysis, Comparisons, and Test Results

The Deeper PRO+ 2 Castable Wi-Fi Sonar scored 76 out of 100 overall.

It is strongest on value for money and weakest on battery life.

Here is how it did on every metric we tested, with exactly how each score compares to the rest of the field.

Value for Money

One unit covers shore, kayak, and ice, so it earns its keep across seasons.

Cheaper than the dedicated flashers and it adds GPS mapping via the app.

It is not purpose-built for ice, so treat the ice mode as a bonus not the main event.

Good value if you want one do-everything sonar rather than a dedicated ice rig.

Value for Money	Rating
Best in test	10/10
Deeper PRO+ 2 Castable Wi-Fi Sonar	8/10
Category average	7.4/10
Worst in test	6/10

Target Separation

The app Ice Flasher mode gives a usable real-time read below the hole.

Raw sonar view shows more than the Basic bottom-and-icon view, so use Raw on the ice.

You might be wondering:

Separation is decent but a dedicated flasher reads tight targets more cleanly.

Dedicated ice units handle vertical separation better, as the reviews note plainly.

Target Separation	Rating
Best in test	10/10
Deeper PRO+ 2 Castable Wi-Fi Sonar	7/10
Category average	7.4/10
Worst in test	2/10

Display Readability

There is no screen on the unit at all, so readability is entirely your phone.

Screen quality, brightness, and glove use all depend on the phone you bring.

A cold phone screen and cold fingers make it fiddlier than a dedicated dial.

Scores a 6 because the read is fine but you are babysitting a phone on the ice.

Display Readability	Rating
Best in test	9/10
Deeper PRO+ 2 Castable Wi-Fi Sonar	6/10
Category average	7/10
Worst in test	3/10

Battery Life

Rated around 9 hours, but cold air cuts into that, sometimes sharply below freezing.

The lithium-polymer cell loses runtime under 40 F, a real winter drawback.

It is rated to about minus 4 F but you must keep it warm to hit usable times.

Owners tuck it in a jacket pocket between drops so it does not sit on the ice.

Battery Life	Rating
Best in test	10/10
Deeper PRO+ 2 Castable Wi-Fi Sonar	5/10
Category average	7.5/10
Worst in test	5/10

Ease of Use

No cable, bracket, or screen to set up, just tie it on and drop it.

You do have to pair it over Wi-Fi and run the phone app each trip.

Switching the app to Ice Flasher mode is a simple toggle.

Managing a phone plus a wireless ball is more fuss on the ice than a self-contained flasher.

Ease of Use	Rating
Best in test	9/10
Deeper PRO+ 2 Castable Wi-Fi Sonar	7/10
Category average	7.1/10
Worst in test	6/10

Should You Buy the Deeper PRO+ 2 Castable Wi-Fi Sonar?

A screenless castable ball with an Ice Flasher app mode, handy if you already own it, but cold cuts its battery and you fish off your phone.

It is best suited to anglers who want one wireless sonar for every season.

Want to know the best part?

The big win: One sonar for shore, kayak, and ice.

The main compromise: Battery drops sharply in the cold.

We scored it 76 out of 100.

What Other Ice Fishing Fish Finders Should You Consider?

Not sold on this one? A few others from our testing are worth a look.

The Garmin STRIKER 4 with Ice Fishing Bundle is our best budget ice fishing fish finder. The budget pick that punches far above its price, with a genuine low-lag flasher mode built into a tiny color graph.

The Vexilar FLX-18 Genz Pack Flasher is our best simple operated ice fishing fish finder. The flasher most anglers point beginners to, with sharp separation, an easy three-color dial, and a pack that fishes right out of the box.

Specifications

Type	castable Wi-Fi sonar ball
Screen	none, uses phone app
Ice mode	app Ice Flasher
Rated run time	about 9 hr
Cold rating	to about -4 F
Battery	lithium-polymer, internal
GPS mapping	yes, via app

Conclusion: Deeper PRO+ 2 Castable Wi-Fi Sonar

After testing it against the other top ice fishing fish finders, the Deeper PRO+ 2 Castable Wi-Fi Sonar earns its place as our best wireless ice fishing fish finder pick.

Its standout strength: One sonar for shore, kayak, and ice.

So:

The main thing to weigh before you buy: Battery drops sharply in the cold.

If you want anglers who want one wireless sonar for every season, it belongs at the top of your shortlist.

Still comparing? See exactly where the Deeper PRO+ 2 Castable Wi-Fi Sonar ranks against the full field in our 10 Best Ice Fishing Fish Finder guide.

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