Is portable fish finder profitable to sell on Amazon United States?

The niche generates $479K/yr across 21 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is +39.5%. Flapen's verdict: Worth a look (50/100).

How competitive is the portable fish finder niche?

12 brands and 122 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 77% of demand.

What do buyers complain about in portable fish finder?

Top complaints mined from reviews: Durability, Functionality-Overall, Connectivity-Overall. The return rate is 4.3%.

When does demand for portable fish finder peak?

Demand peaks in May–Jun–Jul–Dec; the busiest month runs 2.9× the quietest.

What does it cost to enter the portable fish finder niche?

Listings span $39.25–$222.99; the average listing price is $123.50 (sweet spot $15–$100). The average incumbent carries 1,522 reviews — the moat a new listing must climb.

portable fish finder

Worth a look

Shows a sweet-spot price point ($123.50 avg), but weak search conversion (1.5%) keeps it on the watch list.

Avg price

Good$123.50

avg listing price — sweet spot $15–$100

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Growth

Good+39.5%

90-day search growth — must beat 0% to launch

Market size

Good$479K

$479K/yr · 262K searches

Competition

Good54%

top-5 click share — leaders hold, buyers still browse

Review moat

Okay1,521.57

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay77%

top-5 brand share — brands hold most of the demand

Returns

Okay4.3%

return rate — above 5% kills the launch gate

Price range

Okay$39.25–$222.99

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Bad1.5%

search→purchase rate — share of searches ending in a sale

Signals High Price

According to Flapen's Amazon United States niche tracking, portable fish finder is a $479K/yr Amazon United States market (262K searches/yr). The top 5 brands hold 77% of demand. Demand peaks in May–Jun–Jul–Dec. Verdict: Worth a look — 50/100.

Data updated Jul 21, 2026 · scored weekly · How we score niches

portable fish finder market data

Units sold / yr: 3K–4K; avg 100–250/product
Revenue / yr: $371K–$494K; units × avg price
Conversion rate: 1.5%
Avg BSR: #85
Page quality: 0%
Prime: 100%
Sponsored: 76%
Out of stock: 0.9%
Avg brand age: 54 months
Avg seller age: 172 days

Competition & brand share

The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 rising

Sellers

122

Top-5 brand share

77%

Top 20: 100%

Top-5 click share

54%

Top 20: 99%

Open market

17%

Humminbird28%
Deeper18%
Garmin14%
Venterior8%
LUCKY8%
ReelSonar6%
Open — no brand owns it (6 brands, 17%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +39.5% search growth over the last 90 days.

Peak months: May, Jun, Jul, Dec · busiest ÷ quietest = 2.9×

Open Trend

Top portable fish finder search terms

portable fish finder81K/yr +52.4%0.9% conv.
castable fish finder27K/yr +49.7%1.2% conv.
fish finder bobber25K/yr +32.4%1.0% conv.
deeper fish finder28K/yr -4.0%1.0% conv.
garmin striker cast17K/yr -1.5%3.1% conv.
deeper pro plus 212K/yr +60.4%3.1% conv.
fish finder for bank fishing6K/yr +144.5%0.3% conv.
portable depth finder8K/yr +66.0%1.3% conv.
deeper sonar7K/yr +49.5%1.2% conv.
bobber fish finder6K/yr +46.8%1.0% conv.

All search terms

Top portable fish finder products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 21 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Humminbird PiranhaMAX 4 Fish Finder with Transducer Dual Beam Sonar

Humminbird$127.284.6★1,296 rev

Deeper PRO+ 2 Sonar Fish Finder - Portable Fish Finder and Depth Finder For Kayaks Boats and Ice Fishing with GPS Enabled | Castable Deeper Fish Finder with FREE User Friendly App

Deeper$162.214.1★814 rev

Venterior Portable Rechargeable Fish Finder Wireless Sonar Sensor Fishfinder Depth Locator with Fish Size Temperature Bottom Contour Color Display

Venterior$86.694.3★1,101 rev

Garmin Striker Cast Castable Sonar Pair with Mobile Device and Cast from Anywhere Reel in to Locate and Display Fish on Smartphone or Tablet (010-02246-00)

Garmin$134.634.5★488 rev

Reelsonar Portable Fish Finder Accurate Fish Depth Finder with Depth Range of 135 feet 10+ Hours Battery Life with iOS & Android App Wireless

ReelSonar$84.584.0★6,817 rev

Newest

by launch date

Takkicept Portable Underwater Fishing Camera Fish Finder: 6 OLED Display 1080P HD Depth Finders Waterproof Camera IP68 220 Wide-Angle Lens 12H Battery 25m Cable for Ice Fishing Kayak Boat Shore

Takkicept$147.3614 rev

2mo ago

Underwater Fishing Camera Portable Fish Finder with 7 LCD Monitor IP68 Waterproof 1200TVL HD Fishing Camera with 12pcs White Lights for Lake Kayak Boat Ice Dark Fishing (98ft/30M Cable)

Malutoothzi$141.4010 rev

5mo ago

LUCKY Kayak Portable Fish Finder Transducer Wireless Sonar Fish Finders Boat Rechargeable Handheld Fish Depth Finder Fishing MT-202

LUCKY$128.0640 rev

9mo ago

Deeper MAX Castable GPS Fish Finder Portable Chirp Sonar Depth and Fish Finder for Boat Fishing Ice Fishing Shore Fishing - Personal 3D Depth Maps with User-Friendly Free App

Deeper$222.9937 rev

10mo ago

Fish Finder Underwater Fishing Camera Equipped with Infrared Night Vision Function IP67 Waterproof and ice Fishing Camera a Portable Fish Finder in Rivers Lakes Kayaks and Boats (30)

JinXiHua$56.8945 rev

1y ago

What buyers say about portable fish finder

What buyers praise and complain about, mined from review topics.

What buyers love

Ease Of Use15%

“Easy to use”

Value For Money14%

“Affordable”

Efficiency10%

“This is the most effective”

Quality-Overall9%

“Good quality”

GPS6%

“The GPS pin is mighty accurate”

Advertised Vs Actual Product5%

“it works as advertised”

Size-Overall4%

“Perfect size”

Assembly/Installation3%

“Easy to install”

Connectivity-Overall3%

“It connects easy to its app on the phone”

Functionality-Overall3%

“The display & transducer work”

What buyers complain about

Durability17%

“nervous it will break”

Functionality-Overall11%

“doesnt work”

Connectivity-Overall9%

“it does not connect to any device”

Quality-Overall8%

“very poor quality”

Battery Life5%

“Drains the phone battery in just a few hours”

Charging5%

“Won't turn on or even charge”

Measurement/Reading Accuracy5%

“Maybe I have a bad transducer because I don't get Any depth”

Product Condition4%

“since it was a used item”

Ease Of Use4%

“Not user friendly; doesnt work”

Length2%

“Transducer cord not long enough”

Top return reasons

Functionality-Overall19%

Connectivity-Overall13%

Advertised Vs Actual Product9%

Size-Overall7%

Defective Material/Parts6%

Value For Money5%

Compatibility-Overall5%

Display-Overall4%

Charging4%

Product Condition3%

Common questions

Is portable fish finder profitable to sell on Amazon United States?: The niche generates $479K/yr across 21 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is +39.5%. Flapen's verdict: Worth a look (50/100).
How competitive is the portable fish finder niche?: 12 brands and 122 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 77% of demand.
What do buyers complain about in portable fish finder?: Top complaints mined from reviews: Durability, Functionality-Overall, Connectivity-Overall. The return rate is 4.3%.
When does demand for portable fish finder peak?: Demand peaks in May–Jun–Jul–Dec; the busiest month runs 2.9× the quietest.
What does it cost to enter the portable fish finder niche?: Listings span $39.25–$222.99; the average listing price is $123.50 (sweet spot $15–$100). The average incumbent carries 1,522 reviews — the moat a new listing must climb.