---
title: "Underwater Metal Detector — $272K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/underwater-metal-detector"
last_updated: "2026-08-09T18:45:57.698Z"
locale: en
meta:
description: "Niche score 54/100 · $272K/yr market. Prices mostly outside the sweet spot ($19.48–$1711.04) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 54/100 · $272K/yr market. Prices mostly outside the sweet spot ($19.48–$1711.04) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Underwater Metal Detector — $272K/yr Amazon US Niche (2026) - Flapen"
---
# **underwater metal detector**
**Worth a look**
Shows no brand lock-in (top 5 brands take 55% of clicks), but prices mostly outside the sweet spot ($19.48–$1711.04) keeps it on the watch list.
Market size 50Growth 77Conversion 20Competition 54Returns 32Price range 5Avg price 53Brand share 80Review moat 57Quality gap 75
**Brand share**
**Great****55%**
top-5 brand share — no brand owns this niche
**Growth**
**Great****+66.0%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****1,203.83**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Good****53%**
top-5 click share — leaders hold, buyers still browse
**Avg price**
**Good****$166.13**
avg listing price — sweet spot $15–$100
**Market size**
**Okay****$272K**
$272K/yr · 102K searches
**Returns**
**Okay****4.4%**
return rate — above 5% kills the launch gate
**Conversion**
**Bad****1.6%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Bad****$19.48–$1711.04**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50") [** Out of Stock**](https://flapen.com/research/niches?market=us&signal=out_of_stock "OOS rate > 10%")
According to Flapen's Amazon United States niche tracking, underwater metal detector is a $272K/yr Amazon United States market (102K searches/yr). The top 5 brands hold 55% of demand. Demand peaks in Jun–Jul–Aug. Verdict: Worth a look — 54/100.
Data updated Jul 16, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **underwater metal detector market data**
- **Units sold / yr**
- **2K–2K**
- avg 0–100/product
- **Revenue / yr**
- **$249K–$332K**
- units × avg price
- **Conversion rate**
- **1.6%**
- **Avg BSR**
- **#149**
- **Page quality**
- **0%**
- **Prime**
- **96%**
- **Sponsored**
- **91%**
- **Out of stock**
- **13.6%**
- **Avg brand age**
- **46 months**
- **Avg seller age**
- **196 days**
## **Competition & brand share**
The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**20 **▼falling
**Sellers**
**44**
**Top-5 brand share**
**55%**
Top 20: 100%
**Top-5 click share**
**53%**
Top 20: 96%
**Open market**
**39%**
- Vietora Eud18% - NOKTA DETECTION TECHNOLOGIES10% - hazlewolke10% - GDDREAM9% - Widazzla8% - LSPWIEMFE5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +66.0% search growth over the last 90 days.
4K3KHoliday '24Spike '25Prime Day '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jun, Jul, Aug · busiest ÷ quietest = 2.7×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/underwater-metal-detector/trend)
## **Top underwater metal detector search terms**
- **underwater metal detector**62K/yr+70.5%1.1% conv. - **under water metal detector**8K/yr+241.7%1.5% conv. - **underwater metal detector scuba diving**7K/yr+161.7%1.9% conv. - **under water metal detector for adults**8K/yr+7.9%1.0% conv. - **metal detector underwater**4K/yr+65.8%0.8% conv. - **underwater metal detector for adults**7K/yr-25.6%1.2% conv. - **water metal detector**4K/yr+84.5%1.1% conv. - **underwater metal detectors**4K/yr+37.9%0.7% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/underwater-metal-detector/search-terms)
## **Top underwater metal detector 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.
0%5%$14K10%$27K15%$41K20%$54K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 23 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Underwater Metal Detector Submersive IP68 Fully Waterproof Metal Detector for Adults Under Water 100FT Can detect All Metals with Large Coil Accurate and Precise**Vietora Eud**$37.40**3.8★106 rev](https://www.amazon.com/dp/B0DPT9F9SZ) [2**Nokta PulseDive Underwater Metal Detector Waterproof Pinpointer 2-in-1 Set for Adults with 5.5 Inch Search Coil 3 kHz Pulse Induction Frequency Scuba Pulsedive and Pointer**NOKTA DETECTION TECHNOLOGIES**$221.95**4.4★474 rev](https://www.amazon.com/dp/B07RL3GTVV) [3**GDDREAM Underwater Metal Detector for Adults - IP68 Fully Waterproof up to 98FT Rechargeable 1600mAh Handheld Pinpointer High Sensitivity Gold Finder for Diving Beach & Treasure Hunting - Green**GDDREAM**$84.87**4.5★13 rev](https://www.amazon.com/dp/B0GY8D8XZK) [4**Hazlewolke Underwater Metal Detector 130ft Waterproof Metal Detector with Pinpoint Mode 10 Depth Metal Detectors for Adults Professional Detector De Metales Oro Y Plata**hazlewolke**$185.66**4.2★321 rev](https://www.amazon.com/dp/B0DSZT6899) [5**Widazzla Professional Underwater Metal Detector with IP68 Waterproof Rating 1600mAh Rechargeable Battery for Scuba Diving Beach Ocean Fully Submersible Design for Adults**Widazzla**$78.95**3.4★115 rev](https://www.amazon.com/dp/B0D62VFH8M)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**GDDREAM Underwater Metal Detector for Adults - IP68 Fully Waterproof up to 98FT Rechargeable 1600mAh Handheld Pinpointer High Sensitivity Gold Finder for Diving Beach & Treasure Hunting - Green**GDDREAM**$84.87**13 rev2mo ago](https://www.amazon.com/dp/B0GY8D8XZK) [**OMMO Underwater Metal Detector for Adults - IP68 Fully Waterproof Pinpointer Up to 65FT Rechargeable Handheld Gold Finder for Beach Diving & Treasure Hunting (Green)**OMMO**$76.34**7 rev3mo ago](https://www.amazon.com/dp/B0GXKWHJ7L) [**Professional Underwater Metal DetectorWaterproof Underwater Metal Detector Waterproof Pinpointer 1600mAh Rechargeable Battery for Scuba Diving Beach Ocean Fully Submersible**LSPWIEMFE**$58.36**4 rev4mo ago](https://www.amazon.com/dp/B0GS14XZTY) [**Professional Underwater Metal Detector 2-in-1 Handheld & Scuba Detection Tool High Sensitivity Pulse Technology Waterproof for Diving Beach Sand & Gold Hunting**LSPWIEMFE**$80.10**10 rev4mo ago](https://www.amazon.com/dp/B0GRZYT22S) [**Metal Detector for Adults Professional Waterproof Pinpoint High Accuracy Gold and Silver Detection Underwater and Beach Use 10 IP68 Coil Bigger LCD New Advanced DSP Chip Black**GreenRex**$107.73**540 rev10mo ago](https://www.amazon.com/dp/B0FNRFK7XQ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**GDDREAM Underwater Metal Detector for Adults - IP68 Fully Waterproof up to 98FT Rechargeable 1600mAh Handheld Pinpointer High Sensitivity Gold Finder for Diving Beach & Treasure Hunting - Green**GDDREAM**$84.87**4.5★**▲ 197%**](https://www.amazon.com/dp/B0GY8D8XZK) [**Professional Underwater Metal DetectorWaterproof Underwater Metal Detector Waterproof Pinpointer 1600mAh Rechargeable Battery for Scuba Diving Beach Ocean Fully Submersible**LSPWIEMFE**$58.36**4.0★**▲ 196%**](https://www.amazon.com/dp/B0GS14XZTY) [**OMMO Underwater Metal Detector for Adults - IP68 Fully Waterproof Pinpointer Up to 65FT Rechargeable Handheld Gold Finder for Beach Diving & Treasure Hunting (Green)**OMMO**$76.34**4.2★**▲ 196%**](https://www.amazon.com/dp/B0GXKWHJ7L) [**Professional Underwater Metal Detector 2-in-1 Handheld & Scuba Detection Tool High Sensitivity Pulse Technology Waterproof for Diving Beach Sand & Gold Hunting**LSPWIEMFE**$80.10**4.6★**▲ 195%**](https://www.amazon.com/dp/B0GRZYT22S) [**CKG Metal Detector Pinpointer 360 Detection Professional Metal Detector Wand for Adults with LCD Screen & 3 Alert Modes Fully Waterproof IP68 Color Blue**CKG**$40.68**4.4★**▲ 163%**](https://www.amazon.com/dp/B0D7VQGW9Z)
**~~View all trending →~~**
## **What buyers say about underwater metal detector**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Use**19%
*“Easy to operate”*
**Value For Money**16%
*“GREAT price”*
**Quality-Overall**15%
*“the build quality is excellent”*
**Advertised Vs Actual Product**10%
*“Worked as Advertised”*
**Assembly/Installation**6%
*“Assembly was very simple”*
**Weight Light**4%
*“I also like that it doesn't feel too heavy while walking around with it for a while”*
**Water Resistance**4%
*“Good waterproofing”*
**Gifting Purpose**3%
*“Great gift”*
**Instructions/User Manual/Troubleshooting**3%
*“the instructions were clear”*
**Durability**3%
*“The materials used to make it do feel very strong and durable”*
### **What buyers complain about **
**Quality-Overall**21%
*“Sadly the elctronics are questionable quality”*
**Functionality-Overall**14%
*“Barely works”*
**Durability**7%
*“Stopped working after a few uses”*
**Advertised Vs Actual Product**5%
*“Did not work as advertised for me”*
**Strength**5%
*“Kinda weak”*
**Metal Quality**4%
*“Terrible metal detector”*
**Water Resistance**4%
*“Not for water”*
**Measurement/Reading Accuracy**4%
*“Not accurate”*
**Product Condition**3%
*“New product not new”*
**Rusts/Corrodes**3%
*“the battery terminals were corroded”*
### **Top return reasons **
**Functionality-Overall**42%
**Advertised Vs Actual Product**13%
**Defective Material/Parts**6%
**Size-Overall**5%
**Value For Money**5%
**Metal Quality**4%
**Quality-Overall**3%
**Measurement/Reading Accuracy**3%
**Water Resistance**2%
**Strength**2%
## **Common questions**
- **Is underwater metal detector profitable to sell on Amazon United States?**
- The niche generates $272K/yr across 23 tracked products. 2 of 5 products launched in the last 360 days are still selling. 90-day search growth is +66.0%. Flapen's verdict: Worth a look (54/100).
- **How competitive is the underwater metal detector niche?**
- 20 brands and 44 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 55% of demand.
- **What do buyers complain about in underwater metal detector?**
- Top complaints mined from reviews: Quality-Overall, Functionality-Overall, Durability. The return rate is 4.4%.
- **When does demand for underwater metal detector peak?**
- Demand peaks in Jun–Jul–Aug; the busiest month runs 2.7× the quietest.
- **What does it cost to enter the underwater metal detector niche?**
- Listings span $19.48–$1711.04; the average listing price is $166.13 (sweet spot $15–$100). The average incumbent carries 1,204 reviews — the moat a new listing must climb.
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