The catch
Deeper PRO+ 2
CHIRP+ 2 publishes 120 m of Wi-Fi range, while this one lists 100 m.
Side by side
Deeper PRO+ 2 vs CHIRP+ 2 Compared: CHIRP+ reaches farther wirelessly, and the extra runtime assumes GPS is off
Quick verdict
CHIRP+ 2 is worth choosing for the added wireless range or for longer sessions with GPS off. PRO+ 2 already handles GPS shore mapping, publishes the same depth and target-separation limits and takes less time to charge fully.
Before you buy
Why, and what it costs you
That is 20 m of extra reach, or about 66 ft
The published wireless range of CHIRP+ 2 is 20% longer. That can matter if the fishing spot lies beyond the PRO+ 2 limit, though it cannot guarantee a clear link through waves or interference.
Where this comes from
The gap is 120 m minus 100 m, or 20 m. Divide it by 100 m and you get 20%. Converting to feet uses 3.28084 ft per meter.
The catch
Deeper CHIRP+ 2
Simpler castable sonar spares you the setup choices that come with the three-beam CHIRP system, and this one still depends on a phone outdoors.
Deeper PRO+ 2
- Why pick it
- A published Wi-Fi range of 100 m is enough for where you fish
- You benefit from a shorter full-charge time between trips
- The catch
- CHIRP+ 2 publishes 120 m of Wi-Fi range, while this one lists 100 m.
Deeper CHIRP+ 2
- Why pick it
- More published wireless reach is a must for you
- You want longer sessions with GPS off
- The catch
- Simpler castable sonar spares you the setup choices that come with the three-beam CHIRP system, and this one still depends on a phone outdoors.
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What this page compares
Deeper PRO+ 2 and Deeper CHIRP+ 2 weighed up on display and mounting, sonar and depth, charts and bundle.
The differences worth weighing are wireless reach, charging time and GPS use. Published depth and target-separation limits are tied.
Which one fits
Pick the situations that sound like you
Survey a lake from the bank
Internal GPS on both makes shore-cast bathymetric mapping possible.
- Deeper PRO+ 2
- Good
- Deeper CHIRP+ 2
- Good
Fish out past a 100 m wireless link
The published connection limit for CHIRP+ 2 is 120 m. Waves, phone position and interference can cut the usable range of either model.
- Deeper PRO+ 2
- Not suitable
- Deeper CHIRP+ 2
- Better fit
Fish all day and skip recording GPS positions
With GPS off, CHIRP+ 2 publishes up to 15 hours. PRO+ 2 lists up to nine hours, depending on usage.
- Deeper PRO+ 2
- Good
- Deeper CHIRP+ 2
- Better fit
Charge up fully between short trips
A full charge takes a stated 75 minutes on PRO+ 2 and 110 minutes on CHIRP+ 2.
- Deeper PRO+ 2
- Better fit
- Deeper CHIRP+ 2
- Good
Decide based on maximum depth or narrow-beam separation
Each publishes a 100 m depth ceiling and 1 cm separation on the narrow beam. Those figures do not show better image quality for either one.
- Deeper PRO+ 2
- Similar
- Deeper CHIRP+ 2
- Similar
Stay off a phone while fishing
Neither has a built-in display, since both send sonar to your phone or tablet.
- Deeper PRO+ 2
- Not suitable
- Deeper CHIRP+ 2
- Not suitable
In practice
Differences you will notice
That is 20 m of extra reach, or about 66 ft
The published wireless range of CHIRP+ 2 is 20% longer. That can matter if the fishing spot lies beyond the PRO+ 2 limit, though it cannot guarantee a clear link through waves or interference.
How we worked this out
The gap is 120 m minus 100 m, or 20 m. Divide it by 100 m and you get 20%. Converting to feet uses 3.28084 ft per meter.
The longer battery headline does not compare mapping runtimes
The stated 15 hours for CHIRP+ 2 applies with GPS off, and its GPS-on claim is nine hours. PRO+ 2 also lists up to nine hours, under broader usage conditions, so the records do not establish a mapping-runtime winner.
How we worked this out
Each manufacturer runtime claim stays tied to its operating mode in the comparison. Nothing about endurance testing is inferred from those claims.
On the stated full charge, PRO+ 2 saves 35 minutes
Published charge times are 75 minutes and 110 minutes. With a short charging window between two trips, PRO+ 2 is the easier fit.
How we worked this out
110 minus 75 equals 35 minutes. These are manufacturer full-charge figures under their stated conditions. BillionFables did not measure them.
Both models share the depth and separation limits
A 100 m depth ceiling, 1 cm narrow-beam separation and 2.4 cm separation on the other beams are listed for both. If you pay for CHIRP+ 2 only to improve those published limits, you would not get a higher rating.
How we worked this out
For each of these three limits, the current exact-model specification tables give the same values.
Option A
Deeper, PRO+ 2
Deeper PRO+ 2
In the named Amazon configuration a transducer is included, and the maker conditions give a listed sonar depth class of 328 feet.
- Best for
- move it between small boats and fish from a kayak
Facts we checked
- Under the maker conditions, the listed sonar depth class reaches 328 feet.
- A transducer comes with the named Amazon configuration.
- The named configuration leaves out side imaging.
- The unit supports charting or live mapping.
Option B
Deeper, CHIRP+ 2
Deeper CHIRP+ 2
The named Amazon configuration comes with a transducer, and its listed sonar depth class reaches 328 feet under the maker conditions.
- Best for
- fish from a kayak and carry it from one small boat to another
Facts we checked
- Under the maker conditions, the listed sonar depth class reaches 328 feet.
- A transducer comes with the named Amazon configuration.
- The named configuration leaves out side imaging.
- The unit supports charting or live mapping.
Spec by spec
Where they really differ
| Spec | Deeper PRO+ 2 | Deeper CHIRP+ 2 | In practice |
|---|---|---|---|
| Published wireless range | Up to 100 m | Up to 120 m | When conditions allow, CHIRP+ 2 offers a longer stated connection range. |
| Sonar design | Three fixed frequencies | Three CHIRP beams | Scanning methods differ, yet the shared separation figures do not put a number on any image-quality improvement. |
| Depth range | 15 cm to 100 m | 15 cm to 100 m | These models cannot be told apart by maximum rated water depth. |
| Target separation | 1 cm narrow, 2.4 cm medium or wide | 1 cm narrow, 2.4 cm medium or wide | On either sonar, pick the beam that suits the job. |
| Runtime conditions | Up to 9 hours depending on usage | Up to 9 hours GPS on, 15 hours GPS off | To get the longer CHIRP headline, you give up GPS recording for that session. |
| Full-charge time | 75 minutes | 110 minutes | The stated turnaround between trips is shorter on PRO+ 2. |
Trade-offs
What each pick costs you
With Deeper PRO+ 2
- Your phone battery, how well you can see its screen and the Wi-Fi conditions all affect mapping and sonar.
With Deeper CHIRP+ 2
- Waves, interference, phone position and line of sight can all cut into the published range, which is a best-case figure.
Decision guide
How to decide
Go with CHIRP+ 2 if you need more wireless range or want longer sessions with GPS turned off. PRO+ 2 still covers GPS shore mapping, matches its published depth and target-separation limits, and reaches a full charge sooner.
Where they differ
Under suitable conditions, CHIRP+ 2 publishes 120 m of Wi-Fi range to the 100 m of PRO+ 2, which is a 20% increase.
What changes with the specs
Both units publish a 100 m depth ceiling and 1 cm narrow-beam target separation, and neither limit establishes an advantage for CHIRP+ 2.
What you give up
CHIRP+ 2 gets to its 15-hour claim only with GPS off, so do not treat it as 15 hours of GPS shore mapping.
What this page can’t tell you
- Top depth is tied to conditions.
- The transducer in a bundle may vary with the store.
- The boat itself can obstruct side-imaging beams.
By the numbers
What the data shows
What we found across the fish finders we compare, plus the checked facts behind each finding.
How many fit
11 of the 23 models checked meet every need here: “You fish from a kayak” and “It will move between small boats”.
11 models fit, out of 23 checkedShow the facts and the math
How we countedThe count uses each product's current fit ratings for “You fish from a kayak” and “It will move between small boats”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Deeper PRO+ 2 |
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| Deeper CHIRP+ 2 |
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
Deeper PRO+ 2
A published Wi-Fi range of 100 m is enough for where you fish
See price & reviews on AmazonDeeper CHIRP+ 2
More published wireless reach is a must for you
See price & reviews on AmazonEach link opens in a new tab.
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