Deeper doesn't make boat electronics. Deeper, UAB, the Lithuanian company behind the brand, builds castable sonar balls: waterproof units you tie to your line and cast out like a lure, which then talk to the Fish Deeper app on your phone over their own Wi-Fi signal. There's no display screen on the unit itself and no transducer to mount through a hull. That single design choice is why Deeper shows up in searches from bank anglers, kayak fishermen, and ice anglers who want real sonar without owning a boat to bolt it to, rather than from boat owners comparison-shopping against Garmin or Lowrance.
Deeper's Real Current Lineup
As checked this session, Deeper's US store sells exactly three sonars: the Deeper Max at $209.99 (marked down from $279.99), the Deeper Sonar Pro+ 2 at $159.99 (marked down from $179.99), and the entry-level Deeper Fishfinder START at $89.99. Of the three, only START was actually in stock at the time of checking, Max and Pro+ 2 were both listed as sold out on Deeper's own store.
There's a second, older tier worth knowing about: Deeper's own spec-comparison tool still lists three CHIRP+ models, CHIRP+ 2, CHIRP+ 3, and CHIRP+ 4, with real, specific numbers for depth range, casting range, and battery life. None of the three turned up as a purchasable listing anywhere on the current US store. That's a genuine gap between what Deeper still documents for reference and what it currently sells new in the US, and it's exactly the kind of detail a generic manufacturer-copy brand page would gloss over. We cover it directly in our Chirp 2 review rather than assuming the model is still on shelves because a page about it still exists.
How a Deeper Sonar Actually Works
Every Deeper unit pairs to a phone or tablet running the Fish Deeper app over its own Wi-Fi network, so there's no cellular signal needed once you're on the water. The mid-to-upper models, Pro+ 2 and up, add real multi-satellite GPS, layering GLONASS, Galileo, BeiDou, and QZSS on top of standard GPS for building offline maps of a lake bottom as you fish it. That GPS mapping is the real differentiator between Deeper's tiers: the entry-level START skips it, while Pro+ 2 and Max both include it.
Our Deeper Reviews
We've tested and researched Deeper's two most-searched models in depth:
- Deeper Pro+ 2, the real current mid-tier model, confirmed at $159.99 with three sonar beams and full multi-satellite GPS, though sold out on Deeper's own store as of this writing.
- Deeper Chirp 2, an honest look at what "Chirp 2" actually refers to (Deeper's own CHIRP+ 2), what its comparison tool confirms, and why no current price or live US listing could be found.
Where Deeper Fits Against Boat-Mounted Brands
Deeper isn't really competing head-to-head with Garmin, Lowrance, or Humminbird, it's solving a different problem. A boat-mounted unit needs a boat to mount it on; a Deeper sonar needs a rod, a line, and a phone. We checked West Marine's own fish-finder category directly, and Deeper doesn't appear among its featured brands, which run Garmin, Simrad, and Lowrance, all boat-electronics makers. That's consistent with Deeper occupying its own niche (bank, kayak, and ice fishing) rather than competing on the same shelf as the marine-electronics majors.
FAQ
What fish finders does Deeper currently sell in the US?
Three models: Deeper Max ($209.99), Deeper Sonar Pro+ 2 ($159.99), and Deeper Fishfinder START ($89.99), confirmed directly on Deeper's own US store.
Is the Deeper Chirp 2 (CHIRP+ 2) still available?
It's not a current purchasable listing on Deeper's US store, though it still appears on Deeper's own spec-comparison tool. See our full Chirp 2 review for the details.
Does a Deeper sonar need cell service or Bluetooth to work?
No. Every Deeper unit creates its own Wi-Fi signal to pair directly with the Fish Deeper app on a phone.
Is Deeper a good fit for boat owners, or just bank/kayak anglers?
Deeper's castable design works from a boat too, but it's built specifically for anglers without a fixed transducer mount, bank, kayak, ice, and small-boat fishing are its real strength, not competing head-to-head with a boat-mounted Garmin or Lowrance unit.
Which Deeper model should I start with?
For most anglers, the Pro+ 2 is Deeper's real current mid-tier pick, with three sonar beams and full GPS. Budget shoppers can look at the entry-level START instead.
Sources
- [S001] Deeper US store : sonars collection page
- [S002] Deeper : sonar comparison tool (en-us)
- [S003] Deeper US store : Deeper Sonar PRO+ 2 product page
- [S005] West Marine : Fishfinders category page