- Key Facts
- Rating7/10
- Why this pickIt's the real, current mid-tier model in Deeper's own lineup, sitting between the entry-level START and the newer Max, and it's the only one of the three with a confirmed narrow 7-degree beam for picking out individual fish at range.
Pros
- Three confirmed sonar beams instead of one, including a narrow 7-degree cone for picking out individual fish
- Multi-constellation GPS (GPS, GLONASS, Galileo, BeiDou, QZSS) for real offline map-building
- Fast-charges to 80% in 45 minutes, useful for a same-day trip if you forgot to charge it the night before
- Casts and holds a stable connection out to 100 m / 330 ft, further than the entry-level START's 50 m
Cons
- Listed as sold out directly on Deeper's own US store as of this writing
- 9-hour battery life is shorter than the CHIRP+ line's confirmed 15 hours
- No built-in screen, it's a phone-paired unit, so it depends entirely on the Fish Deeper app and a charged phone on the water
The Deeper Pro+ 2 is a castable sonar ball, not a boat-mounted unit: you tie it to your line, cast it out like a lure, and it talks to the Fish Deeper app on your phone over its own Wi-Fi signal. Deeper's own US store lists it at $159.99, marked down from $179.99, sitting in the middle of the brand's three-model current lineup between the entry-level START and the newer Deeper Max.
Deeper Pro+ 2, What's Confirmed
| Feature | Value |
|---|---|
| Sonar/transducer | 3 beams: 675 kHz (7°), 240 kHz (20°), 100 kHz (47°) |
| Depth range | 15 cm to 100 m |
| Casting/connection range | Up to 100 m / 330 ft |
| Battery | 3.7V Li-Ion, 950 mAh, up to 9 hours |
| GPS | GPS, GLONASS, Galileo, BeiDou, QZSS |
| Price | $159.99, down from $179.99 |
| Availability | Sold out on Deeper's own store at time of writing |
The three-beam sonar is the real reason to pick the Pro+ 2 over the cheaper START: the narrow 675 kHz beam has a 7-degree cone and separates targets down to 1 cm, which matters when you're trying to tell two fish holding close together apart from a single big one. The 100 kHz wide beam, by contrast, covers a 47-degree cone for a broader read of the bottom structure. Deeper rates scan speed at up to 15 scans per second across the beams.
Depth range runs from 15 cm out to 100 m, and the unit holds a stable Wi-Fi connection to your phone out to the same 100 m / 330 ft, whether you're casting from the bank, a kayak, or a boat you don't want to run a permanent transducer through. GPS is where the Pro+ 2 pulls ahead of a plain sonar ball: it uses GPS alongside GLONASS, Galileo, BeiDou, and QZSS, which Deeper builds into real offline maps of a lake bottom as you fish it, all without needing a cell signal once you're paired to the unit's own Wi-Fi.
The Pro+ 2's three-beam sonar and multi-constellation GPS are the real reasons to pick it over the entry-level START, confirmed at $159.99 at Deeper's own US store, though marked sold out as of this writing.
Battery and Build
The Pro+ 2 runs on a 3.7V, 950 mAh Li-Ion cell rated for up to 9 hours of continuous use, and fast-charges to 80% in 45 minutes or a full charge in 75 minutes if you're topping it off between trips. That's noticeably shorter than the confirmed 15-hour rating on Deeper's own CHIRP+ line, which is the real tradeoff for the Pro+ 2's lower price. The housing itself is ABS plastic reinforced with titanium inserts, rated to run from -20°C to 40°C, which covers both open-water and cold-weather use without extra housing.
The Pro+ 2's 9-hour battery is the real tradeoff for its lower price against the CHIRP+ line's confirmed 15 hours, in a titanium-reinforced housing rated for both open-water and cold-weather use.
How It Fits in Deeper's Current Lineup
As checked this session, Deeper's US store sells exactly three current sonars: the Deeper Max at $209.99 (down from $279.99, also sold out), the Pro+ 2 at $159.99, and the entry-level Fishfinder START at $89.99, the only one of the three actually in stock. The older CHIRP+ 2, CHIRP+ 3, and CHIRP+ 4 models still show up on Deeper's own spec-comparison tool, with real confirmed numbers (100–120 m casting range, 15-hour battery, three beam angles), but none of the three currently appear as purchasable listings in the US shop, a real, worth-noting gap between what Deeper still documents and what it currently sells new in the US. Compare the Deeper Chirp 2 review for the full detail on that specific model's status.
If you're weighing the Pro+ 2 against the entry-level START, the jump buys you two extra sonar beams (START has one, at a single 40-degree angle), a longer 100 m casting range against START's 50 m, and full multi-constellation GPS, which START doesn't have at all. Against the newer Max, the tradeoff runs the other way: Max adds Deeper's newer 3D mapping feature, at $50 more.
The Pro+ 2 sits squarely between Deeper's entry-level START and newer Max, two more sonar beams and full GPS over the START, and $50 cheaper than the Max's added 3D mapping.
Pros and Cons
Confirmed pros:
- Three real sonar beams, including a narrow 7-degree cone for separating individual fish
- Multi-constellation GPS (GPS, GLONASS, Galileo, BeiDou, QZSS) for real offline lake mapping
- 100 m / 330 ft casting and connection range, double the entry-level START's confirmed 50 m
- Fast-charges to 80% in 45 minutes
Real limitations:
- Marked sold out directly on Deeper's own US store as of this writing
- 9-hour battery life, shorter than the CHIRP+ line's confirmed 15 hours
- Depends entirely on a phone and the Fish Deeper app, there's no standalone screen on the unit itself
The real tradeoff is a genuine three-beam sonar upgrade over a single-beam unit, against a shorter 9-hour battery and current sold-out status directly from Deeper.
Verdict: Who Is the Deeper Pro+ 2 For?
The Pro+ 2 is a real step up from a single-beam castable sonar for an angler who wants to tell individual fish apart from each other, not just see "something's down there," and who's fishing from the bank, a kayak, or a small boat where a bolted-on transducer doesn't make sense. At $159.99 it undercuts Deeper's own Max by $50 while keeping the same three-beam sonar core. The real catch right now is stock: it's sold out directly from Deeper, so buying one today means checking a secondary retailer or waiting for it to come back in.
Best fit is an angler who wants to distinguish individual fish rather than just detect "something's down there," fishing without a permanent transducer mount, buying today means checking a secondary retailer given the sold-out status.