---
title: "Poolmate Hydro 4 — $146K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/poolmate-hydro-4"
last_updated: "2026-08-06T10:42:47.081Z"
locale: en
meta:
  description: "Niche score 38/100 · $146K/yr market · 11K searches/yr · $439.25 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 38/100 · $146K/yr market · 11K searches/yr · $439.25 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Poolmate Hydro 4 — $146K/yr Amazon US Niche (2026) - Flapen"
---

# **poolmate hydro 4**

**Skip it**

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 32Growth 80Conversion 37Competition 19Returns 0Price range 0Avg price 9Brand share 0Review moat 92Quality gap 98

**Quality gap**

**Incredible****3.7★**

avg incumbent rating — lower means beatable quality

**Review moat**

**Great****152.62**

avg incumbent reviews — the moat a new listing must climb

**Growth**

**Great****+73.1%**

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

**Conversion**

**Okay****2.9%**

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

**Market size**

**Okay****$146K**

$146K/yr · 11K searches

**Competition**

**Bad****78%**

top-5 click share — a locked-up shelf

**Avg price**

**Bad****$439.25**

avg listing price — sweet spot $15–$100

**Brand share**

**Bad****100%**

top-5 brand share — brand-locked demand

**Returns**

**Bad****13.2%**

return rate — above 5% kills the launch gate

**Price range**

**Bad****$303.03–$543.66**

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

**Signals**[** Quality Gap**](https://flapen.com/research/niches?market=us&signal=quality_gap "Avg rating < 4.0") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")

According to Flapen's Amazon United States niche tracking, poolmate hydro 4 is a $146K/yr Amazon United States market (11K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in May–Jun–Jul. Verdict: Skip it — 38/100.

Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)

## **poolmate hydro 4 market data**

<dl>

<dt>**Units sold / yr**</dt><dd>**100–250**</dd><dd>avg 0–100/product</dd>

<dt>**Revenue / yr**</dt><dd>**$44K–$110K**</dd><dd>units × avg price</dd>

<dt>**Conversion rate**</dt><dd>**2.9%**</dd>

<dt>**Avg BSR**</dt><dd>**#216**</dd>

<dt>**Page quality**</dt><dd>**0%**</dd>

<dt>**Prime**</dt><dd>**100%**</dd>

<dt>**Sponsored**</dt><dd>**92%**</dd>

<dt>**Out of stock**</dt><dd>**20.9%**</dd>

<dt>**Avg brand age**</dt><dd>**32 months**</dd>

<dt>**Avg seller age**</dt><dd>**214 days**</dd>

</dl>

## **Competition & brand share**

The top 5 products capture 78% of clicks — a locked-up shelf that new listings rarely crack.

**Brands**

**3 **—flat

**Sellers**

**6**

**Top-5 brand share**

**100%**

Top 20: 100%

**Top-5 click share**

**78%**

Top 20: 100%

**Open market**

**0%**

- Chasing49% - Poolmate39% - DEENO12%

## **Demand & seasonality**

Weekly Amazon search volume, last 55 weeks — +73.1% search growth over the last 90 days.

800600Prime Day '25Black Friday '25Spike '26 seasonJulAugSepOctNovDecJanFebMarAprMayJunJul

Peak months: May, Jun, Jul · busiest ÷ quietest = 3.6×

[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/poolmate-hydro-4/trend)

## **Top poolmate hydro 4 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%10%$15K20%$29K30%$44K40%$58K101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

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

All 13 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Chasing Hydro 4 Inground Pool Vacuum Cleaner | 50ft Corded Pool Robot for Floor Wall & Waterline Cleaning | Smart App Control | 5070 GPH Suction Perfect for Pool Opening Season](https://m.media-amazon.com/images/I/41ar9NE3Z3L.jpg)**Chasing Hydro 4 Inground Pool Vacuum Cleaner | 50ft Corded Pool Robot for Floor Wall & Waterline Cleaning | Smart App Control | 5070 GPH Suction Perfect for Pool Opening Season**Chasing**$539.30**3.6★166 rev](https://www.amazon.com/dp/B0DDT89141) [2![Hydro 4SE Robotic Pool Cleaner S-Shaped Path/Auto Wall/Waterline Cleaning 40FT Long Cable/4 Cleaning Modes 4.1L Large Filter Basket Pool Vacuum Ideal for Inground/Above Pools](https://m.media-amazon.com/images/I/41M8P7cUvyL.jpg)**Hydro 4SE Robotic Pool Cleaner S-Shaped Path/Auto Wall/Waterline Cleaning 40FT Long Cable/4 Cleaning Modes 4.1L Large Filter Basket Pool Vacuum Ideal for Inground/Above Pools**Poolmate**$430.14**3.5★181 rev](https://www.amazon.com/dp/B0DQKYWCFG) [3![Hydro 4 Corded Robotic Pool Cleaner Pool Vacuum for Inground Aboveground Pools Floor Wall Waterline Cleaning 4.1L Filter Basket Pool Cleaner Robot Ideal for Pools up to 50 FT in Length](https://m.media-amazon.com/images/I/41pO8Th2yZL.jpg)**Hydro 4 Corded Robotic Pool Cleaner Pool Vacuum for Inground Aboveground Pools Floor Wall Waterline Cleaning 4.1L Filter Basket Pool Cleaner Robot Ideal for Pools up to 50 FT in Length**Poolmate**$494.33**3.2★221 rev](https://www.amazon.com/dp/B0DN179G7Y) [4![Chasing Hydro 4 Corded Robotic Pool Cleaner Pool Vacuum for Inground Aboveground Pools Floor Wall Waterline Cleaning 4.1L Filter Basket Pool Cleaner Robot Ideal for Pools up to 50 FT in Length](https://m.media-amazon.com/images/I/412mwD2bElL.jpg)**Chasing Hydro 4 Corded Robotic Pool Cleaner Pool Vacuum for Inground Aboveground Pools Floor Wall Waterline Cleaning 4.1L Filter Basket Pool Cleaner Robot Ideal for Pools up to 50 FT in Length**Chasing**$543.66**4.0★172 rev](https://www.amazon.com/dp/B0FWC6SKDV) [5![Chasing Hydro 4 Cordless Pool Vacuum for Inground Pools | 210-Min Battery Pool Robot for Floor Wall & Waterline Cleaning | Smart App Control | 5070 GPH Suction Perfect for Pool Opening Season](https://m.media-amazon.com/images/I/41adOrNbOpL.jpg)**Chasing Hydro 4 Cordless Pool Vacuum for Inground Pools | 210-Min Battery Pool Robot for Floor Wall & Waterline Cleaning | Smart App Control | 5070 GPH Suction Perfect for Pool Opening Season**Chasing**$452.39**3.6★166 rev](https://www.amazon.com/dp/B0DDSYRZVY)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![Chasing Hydro 4 Corded Robotic Pool Cleaner Pool Vacuum for Inground Aboveground Pools Floor Wall Waterline Cleaning 4.1L Filter Basket Pool Cleaner Robot Ideal for Pools up to 50 FT in Length](https://m.media-amazon.com/images/I/412mwD2bElL.jpg)**Chasing Hydro 4 Corded Robotic Pool Cleaner Pool Vacuum for Inground Aboveground Pools Floor Wall Waterline Cleaning 4.1L Filter Basket Pool Cleaner Robot Ideal for Pools up to 50 FT in Length**Chasing**$543.66**172 rev9mo ago](https://www.amazon.com/dp/B0FWC6SKDV) [![Hydro 3 All-in-one Pool Vacuum Robot 200mins Runtime Cordless Pool Cleaner 2 150W Brushless Motor+Floor/Wall/Waterline Scrubber Brush Ideal for Inground/Above-Ground Swimming Pools](https://m.media-amazon.com/images/I/41wAmTziT+L.jpg)**Hydro 3 All-in-one Pool Vacuum Robot 200mins Runtime Cordless Pool Cleaner 2 150W Brushless Motor+Floor/Wall/Waterline Scrubber Brush Ideal for Inground/Above-Ground Swimming Pools**Poolmate**$403.07**57 rev1y ago](https://www.amazon.com/dp/B0F999Y872) [![Chasing Hydro 4 SE Corded Robotic Pool Cleaner 150W 180m Class Basket Filter Pool Vacuum with Climbing Walls & Floors Ideal for Inground Pools Up to 40FT Long Cable](https://m.media-amazon.com/images/I/41SENTAFScL.jpg)**Chasing Hydro 4 SE Corded Robotic Pool Cleaner 150W 180m Class Basket Filter Pool Vacuum with Climbing Walls & Floors Ideal for Inground Pools Up to 40FT Long Cable**DEENO**$425.05**157 rev1y ago](https://www.amazon.com/dp/B0F1FVLX1R) [![Hydro4 Wireless Robotic Pool Cleaner with Dual Inlet for Above/In ground Pools up to 1 614 Sq.ft 210 Mins Runtime Wall/Floor Cleaning Waterline Tech Smart Navigation APP/Cloud Control](https://m.media-amazon.com/images/I/417RCf5t+IL.jpg)**Hydro4 Wireless Robotic Pool Cleaner with Dual Inlet for Above/In ground Pools up to 1 614 Sq.ft 210 Mins Runtime Wall/Floor Cleaning Waterline Tech Smart Navigation APP/Cloud Control**DEENO**$461.42**88 rev1y ago](https://www.amazon.com/dp/B0DZH1TX3L) [![Hydro 4SE Robotic Pool Cleaner Wired Automatic Pool Vacuum with Wall & Waterline Cleaning Oversized Top-Loading Filter Dual Inlet System Pool Robot for Inground/Above-Ground Pools Up to 40FT](https://m.media-amazon.com/images/I/31pEm+EQ7bL.jpg)**Hydro 4SE Robotic Pool Cleaner Wired Automatic Pool Vacuum with Wall & Waterline Cleaning Oversized Top-Loading Filter Dual Inlet System Pool Robot for Inground/Above-Ground Pools Up to 40FT**DEENO**$431.63**88 rev1y ago](https://www.amazon.com/dp/B0DYJFC8J6)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Chasing Hydro 4 Corded Robotic Pool Cleaner Pool Vacuum for Inground Aboveground Pools Floor Wall Waterline Cleaning 4.1L Filter Basket Pool Cleaner Robot Ideal for Pools up to 50 FT in Length](https://m.media-amazon.com/images/I/412mwD2bElL.jpg)**Chasing Hydro 4 Corded Robotic Pool Cleaner Pool Vacuum for Inground Aboveground Pools Floor Wall Waterline Cleaning 4.1L Filter Basket Pool Cleaner Robot Ideal for Pools up to 50 FT in Length**Chasing**$543.66**4.0★**▲ 171%**](https://www.amazon.com/dp/B0FWC6SKDV) [![Hydro4 Wireless Robotic Pool Cleaner with Dual Inlet for Above/In ground Pools up to 1 614 Sq.ft 210 Mins Runtime Wall/Floor Cleaning Waterline Tech Smart Navigation APP/Cloud Control](https://m.media-amazon.com/images/I/417RCf5t+IL.jpg)**Hydro4 Wireless Robotic Pool Cleaner with Dual Inlet for Above/In ground Pools up to 1 614 Sq.ft 210 Mins Runtime Wall/Floor Cleaning Waterline Tech Smart Navigation APP/Cloud Control**DEENO**$461.42**3.5★**▲ 131%**](https://www.amazon.com/dp/B0DZH1TX3L) [![[2026 Version] Hydro3 Cordless Robotic Pool Cleaner Automatic Pool Vacuum for Inground and Above Ground Pools Lasts 200 Mins Floor/Wall/Waterline Cleaning Dual Inlet Self-Parking [Green]](https://m.media-amazon.com/images/I/31k3lNlic6L.jpg)**\[2026 Version\] Hydro3 Cordless Robotic Pool Cleaner Automatic Pool Vacuum for Inground and Above Ground Pools Lasts 200 Mins Floor/Wall/Waterline Cleaning Dual Inlet Self-Parking \[Green\]**DEENO**$341.75**4.0★**▲ 111%**](https://www.amazon.com/dp/B0DYHZ1K11) [![Chasing Hydro 4 Inground Pool Vacuum Cleaner | 50ft Corded Pool Robot for Floor Wall & Waterline Cleaning | Smart App Control | 5070 GPH Suction Perfect for Pool Opening Season](https://m.media-amazon.com/images/I/41ar9NE3Z3L.jpg)**Chasing Hydro 4 Inground Pool Vacuum Cleaner | 50ft Corded Pool Robot for Floor Wall & Waterline Cleaning | Smart App Control | 5070 GPH Suction Perfect for Pool Opening Season**Chasing**$539.30**3.6★**▲ 41%**](https://www.amazon.com/dp/B0DDT89141) [![Hydro3 Robotic Pool Cleaner 150W Cordless Pool Vacuum for Inground/upground Pool Max 861-1070 sq.ft 200mins Runtime 2xBrushless-Motor 4.1L Filter Basket Wall Climbing/Waterline Clean](https://m.media-amazon.com/images/I/41ArKrpCJoL.jpg)**Hydro3 Robotic Pool Cleaner 150W Cordless Pool Vacuum for Inground/upground Pool Max 861-1070 sq.ft 200mins Runtime 2xBrushless-Motor 4.1L Filter Basket Wall Climbing/Waterline Clean**Poolmate**$303.03**4.0★**▲ 33%**](https://www.amazon.com/dp/B0DGC7Y3BB)

**~~View all trending →~~**

## **What buyers say about poolmate hydro 4**

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

### **What buyers love **

**Ease Of Cleaning**40%

*“Easy to clean”*

**Assembly/Installation**8%

*“its easy to install”*

**Value For Money**7%

*“Worth it”*

**Ease Of Use**7%

*“Easy to use”*

**Quality-Overall**7%

*“The build quality feels solid”*

**Filtration**3%

*“use of this robotic filter so very easy”*

**Advertised Vs Actual Product**2%

*“This works perfectly as advertised”*

**Battery Life**2%

*“The battery lasts for our entire pool”*

**Charging**2%

*“charging is pretty fast”*

**Weight Light**1%

*“its more light weight bc there is no battery”*

### **What buyers complain about **

**Durability**29%

*“Not lasting”*

**Functionality-Overall**10%

*“It didn't work properly for me”*

**Ease Of Cleaning**10%

*“it takes about a minute to start cleaning”*

**Quality-Overall**6%

*“The quality is trash”*

**Charging**6%

*“Then it wont charge”*

**Connectivity-Overall**4%

*“Connectivity via Bluetooth is lacking”*

**Value For Money**3%

*“Paid over $600”*

**Ease Of Use**3%

*“Very difficult to use”*

**Battery Life**2%

*“the battery started to die”*

**Jamming/Clogging**2%

*“Also, the unit most of the time gets stuck in a vertical position. almost standing upright., which makes simply doing nothing”*

### **Top return reasons **

**Functionality-Overall**26%

**Ease Of Cleaning**13%

**Advertised Vs Actual Product**11%

**Connectivity-Overall**11%

**Defective Material/Parts**9%

**Charging**4%

**Durability**4%

**Size-Overall**3%

**Value For Money**3%

**Jamming/Clogging**2%

## **Common questions**

<dl>

<dt>**Is poolmate hydro 4 profitable to sell on Amazon United States?**</dt><dd>The niche generates $146K/yr across 13 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +73.1%. Flapen's verdict: Skip it (38/100).</dd>

<dt>**How competitive is the poolmate hydro 4 niche?**</dt><dd>3 brands and 6 sellers compete. The top 5 products take 78% of clicks and top 5 brands hold 100% of demand.</dd>

<dt>**What do buyers complain about in poolmate hydro 4?**</dt><dd>Top complaints mined from reviews: Durability, Functionality-Overall, Ease Of Cleaning. The return rate is 13.2% — above our launch gate.</dd>

<dt>**When does demand for poolmate hydro 4 peak?**</dt><dd>Demand peaks in May–Jun–Jul; the busiest month runs 3.6× the quietest.</dd>

<dt>**What does it cost to enter the poolmate hydro 4 niche?**</dt><dd>Listings span $303.03–$543.66; the average listing price is $439.25 (sweet spot $15–$100). The average incumbent carries 153 reviews — the moat a new listing must climb.</dd>

</dl>

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