---
title: "Bathtub — $4.3M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/bathtub"
last_updated: "2026-08-06T01:54:59.387Z"
locale: en
meta:
  description: "Niche score 58/100 · $4.3M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 58/100 · $4.3M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Bathtub — $4.3M/yr Amazon US Niche (2026) - Flapen"
---

# **bathtub**

**Worth a look**

Shows a $4.3M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 97Growth 24Conversion 9Competition 89Returns 32Price range 10Avg price 50Brand share 96Review moat 60Quality gap 72

**Market size**

**Incredible****$4.3M**

$4.3M/yr · 3.3M searches

**Brand share**

**Incredible****36%**

top-5 brand share — no brand owns this niche

**Competition**

**Great****26%**

top-5 click share — an open shelf

**Quality gap**

**Good****4.3★**

avg incumbent rating — lower means beatable quality

**Review moat**

**Good****1,108.63**

avg incumbent reviews — the moat a new listing must climb

**Avg price**

**Good****$177.51**

avg listing price — sweet spot $15–$100

**Returns**

**Okay****4.5%**

return rate — above 5% kills the launch gate

**Growth**

**Bad****-1.8%**

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

**Price range**

**Bad****$12.46–$853.07**

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

**Conversion**

**Bad****0.7%**

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

**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")

According to Flapen's Amazon United States niche tracking, bathtub is a $4.3M/yr Amazon United States market (3.3M searches/yr). The top 5 brands hold 36% of demand. Verdict: Worth a look — 58/100.

Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)

## **bathtub market data**

<dl>

<dt>**Units sold / yr**</dt><dd>**15K–20K**</dd><dd>avg 100–250/product</dd>

<dt>**Revenue / yr**</dt><dd>**$2.7M–$3.6M**</dd><dd>units × avg price</dd>

<dt>**Conversion rate**</dt><dd>**0.7%**</dd>

<dt>**Avg BSR**</dt><dd>**#170**</dd>

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

<dt>**Prime**</dt><dd>**96%**</dd>

<dt>**Sponsored**</dt><dd>**89%**</dd>

<dt>**Out of stock**</dt><dd>**11.2%**</dd>

<dt>**Avg brand age**</dt><dd>**39 months**</dd>

<dt>**Avg seller age**</dt><dd>**163 days**</dd>

</dl>

## **Competition & brand share**

Clicks spread well past the top 5 (26% combined) — an open shelf where new products get seen.

**Brands**

**56 **▲rising

**Sellers**

**70**

**Top-5 brand share**

**36%**

Top 20: 76%

**Top-5 click share**

**26%**

Top 20: 59%

**Open market**

**59%**

- Generic11% - LOMOTIVE6% - CO-Z6% - Onebook6% - ELDERFLOWER & BERRIES6% - STARBRILLIANT5%

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — -1.8% search growth over the last 90 days.

80K60KPrime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.2×

[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/bathtub/trend)

## **Top bathtub search terms**

- **portable bathtub**495K/yr+7.3%0.6% conv. - **bathtub**535K/yr-20.4%0.2% conv. - **tub**320K/yr+2.5%0.2% conv. - **bath tub**295K/yr-16.3%0.3% conv. - **portable bathtub adult**197K/yr-10.0%0.4% conv. - **foldable bathtub**113K/yr+82.0%0.4% conv. - **inflatable bathtub**210K/yr-19.0%0.7% conv. - **portable tub**130K/yr+15.8%0.5% conv. - **inflatable tub**120K/yr-0.4%0.6% conv. - **soaking tub**112K/yr-9.2%0.3% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/bathtub/search-terms)

## **Top bathtub 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%2%$85K4%$171K6%$256K8%$342K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

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

All 24 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Portable Bathtub Foldable Bathtub for Adults Separate Family Bathroom SPA Therapy Tub for Shower Stall Soaking Hot SPA and Ice Bath Tub 45.3x23.6x19.7](https://m.media-amazon.com/images/I/51phkU2IMaL.jpg)**Portable Bathtub Foldable Bathtub for Adults Separate Family Bathroom SPA Therapy Tub for Shower Stall Soaking Hot SPA and Ice Bath Tub 45.3x23.6x19.7**Onebook**$47.46**4.1★329 rev](https://www.amazon.com/dp/B0B8MWS3TX) [2![Portable Bathtub for Adult- Extra Large 56 Foldable Collapsible tub. Ergonomically Designed for the Ultimate Relaxing Soaking Bath Ice Bath. Ideal for Small Spaces Quick Effortless Folding Bathtub](https://m.media-amazon.com/images/I/416TdTygAfL.jpg)**Portable Bathtub for Adult- Extra Large 56 Foldable Collapsible tub. Ergonomically Designed for the Ultimate Relaxing Soaking Bath Ice Bath. Ideal for Small Spaces Quick Effortless Folding Bathtub**ELDERFLOWER & BERRIES**$235.48**4.4★660 rev](https://www.amazon.com/dp/B09XM3QVLL) [3![Ingenuity Tuckaway Toddler Folding Tub Converts Shower to Tub Folds to Store Easy to Clean No Assembly Required Portable Baby Bathtub for Travel 12M-5Y Green](https://m.media-amazon.com/images/I/31Wz8YB35KL.jpg)**Ingenuity Tuckaway Toddler Folding Tub Converts Shower to Tub Folds to Store Easy to Clean No Assembly Required Portable Baby Bathtub for Travel 12M-5Y Green**Ingenuity**$31.48**4.4★1,190 rev](https://www.amazon.com/dp/B0DQVGV639) [4![Portable Bathtub for Adult Foldable Soaking Bathtub for Hot SPA&Ice Bath Foldable Small Bathtub collapsible bathtub for Bathing 6-layer Insulated portable tub Space-Saving (black 25.9X31.5 IN)](https://m.media-amazon.com/images/I/31HQ8AEnoxL.jpg)**Portable Bathtub for Adult Foldable Soaking Bathtub for Hot SPA&Ice Bath Foldable Small Bathtub collapsible bathtub for Bathing 6-layer Insulated portable tub Space-Saving (black 25.9X31.5 IN)**Generic**$57.78**4.1★150 rev](https://www.amazon.com/dp/B0G8VSMT9D) [5![CO-Z Inflatable Bathtub with Electric Air Pump and Bath Pillow Headrest Portable Blow Up Bath Tub for Adults Outdoor & Indoor Freestanding Foldable Spa Tub with Cover Drainage Cup Holder Brown](https://m.media-amazon.com/images/I/41a95JPzqqL.jpg)**CO-Z Inflatable Bathtub with Electric Air Pump and Bath Pillow Headrest Portable Blow Up Bath Tub for Adults Outdoor & Indoor Freestanding Foldable Spa Tub with Cover Drainage Cup Holder Brown**CO-Z**$57.13**4.1★3,985 rev](https://www.amazon.com/dp/B096K2JR1W)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![Portable Bathtub for Adult Foldable Soaking Bathtub for Hot SPA&Ice Bath Foldable Small Bathtub collapsible bathtub for Bathing 6-layer Insulated portable tub Space-Saving (Lotus 27.5X26.6 IN)](https://m.media-amazon.com/images/I/41qbdQYozbL.jpg)**Portable Bathtub for Adult Foldable Soaking Bathtub for Hot SPA&Ice Bath Foldable Small Bathtub collapsible bathtub for Bathing 6-layer Insulated portable tub Space-Saving (Lotus 27.5X26.6 IN)**Generic**$49.28**150 rev5mo ago](https://www.amazon.com/dp/B0GQFR3Z9R) [![Portable Bathtub for Adult Foldable Soaking Bathtub for Hot SPA&Ice Bath Foldable Small Bathtub collapsible bathtub for Bathing 6-layer Insulated portable tub Space-Saving (black 41.3X26.6 IN)](https://m.media-amazon.com/images/I/41Un9FiaxDL.jpg)**Portable Bathtub for Adult Foldable Soaking Bathtub for Hot SPA&Ice Bath Foldable Small Bathtub collapsible bathtub for Bathing 6-layer Insulated portable tub Space-Saving (black 41.3X26.6 IN)**Generic**$81.72**150 rev6mo ago](https://www.amazon.com/dp/B0GDPNYMST) [![Portable Bathtub for Adult Foldable Soaking Bathtub for Hot SPA&Ice Bath Foldable Small Bathtub collapsible bathtub for Bathing 6-layer Insulated portable tub Space-Saving (black 25.9X31.5 IN)](https://m.media-amazon.com/images/I/31HQ8AEnoxL.jpg)**Portable Bathtub for Adult Foldable Soaking Bathtub for Hot SPA&Ice Bath Foldable Small Bathtub collapsible bathtub for Bathing 6-layer Insulated portable tub Space-Saving (black 25.9X31.5 IN)**Generic**$57.78**150 rev7mo ago](https://www.amazon.com/dp/B0G8VSMT9D) [![Baby Bathtub for 6M-3Y Toddler Baby Shower Gifts & Registry Search for Boys Girls Collapsible & Portable Bathtub for Beach Vacation Travel Bath Essentials for Toddler Newborn Kids](https://m.media-amazon.com/images/I/41Y5Vx9NW7L.jpg)**Baby Bathtub for 6M-3Y Toddler Baby Shower Gifts & Registry Search for Boys Girls Collapsible & Portable Bathtub for Beach Vacation Travel Bath Essentials for Toddler Newborn Kids**Bella's Friends Life**$20.92**57 rev8mo ago](https://www.amazon.com/dp/B0GR4MK7F7) [![Portable Foldable Bathtub for Adults 47Lx22Wx20H Pink](https://m.media-amazon.com/images/I/41l1ejjj19L.jpg)**Portable Foldable Bathtub for Adults 47Lx22Wx20H Pink**LOMOTIVE**$58.98**134 rev9mo ago](https://www.amazon.com/dp/B0FPGCMQ8W)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![STARBRILLIANT Portable Bathtub for Adults Foldable Bathtub 31.5L x 26Without Installation with Bottom Cotton Clip Cold Plunge Tub Suitable for Bathing Space-Saving (Black L)](https://m.media-amazon.com/images/I/31i+9ptnOlL.jpg)**STARBRILLIANT Portable Bathtub for Adults Foldable Bathtub 31.5L x 26Without Installation with Bottom Cotton Clip Cold Plunge Tub Suitable for Bathing Space-Saving (Black L)**STARBRILLIANT**$39.43**4.8★**▲ 194%**](https://www.amazon.com/dp/B0GS9G4YJD) [![Portable Bathtub for Adult Foldable Soaking Bathtub for Hot SPA&Ice Bath Foldable Small Bathtub collapsible bathtub for Bathing 6-layer Insulated portable tub Space-Saving (black 41.3X26.6 IN)](https://m.media-amazon.com/images/I/41Un9FiaxDL.jpg)**Portable Bathtub for Adult Foldable Soaking Bathtub for Hot SPA&Ice Bath Foldable Small Bathtub collapsible bathtub for Bathing 6-layer Insulated portable tub Space-Saving (black 41.3X26.6 IN)**Generic**$81.72**4.1★**▲ 185%**](https://www.amazon.com/dp/B0GDPNYMST) [![Baby Bathtub for 6M-3Y Toddler Baby Shower Gifts & Registry Search for Boys Girls Collapsible & Portable Bathtub for Beach Vacation Travel Bath Essentials for Toddler Newborn Kids](https://m.media-amazon.com/images/I/41Y5Vx9NW7L.jpg)**Baby Bathtub for 6M-3Y Toddler Baby Shower Gifts & Registry Search for Boys Girls Collapsible & Portable Bathtub for Beach Vacation Travel Bath Essentials for Toddler Newborn Kids**Bella's Friends Life**$20.92**4.8★**▲ 180%**](https://www.amazon.com/dp/B0GR4MK7F7) [![Portable Bathtub for Adult Foldable Soaking Bathtub for Hot SPA&Ice Bath Foldable Small Bathtub collapsible bathtub for Bathing 6-layer Insulated portable tub Space-Saving (black 25.9X31.5 IN)](https://m.media-amazon.com/images/I/31HQ8AEnoxL.jpg)**Portable Bathtub for Adult Foldable Soaking Bathtub for Hot SPA&Ice Bath Foldable Small Bathtub collapsible bathtub for Bathing 6-layer Insulated portable tub Space-Saving (black 25.9X31.5 IN)**Generic**$57.78**4.1★**▲ 172%**](https://www.amazon.com/dp/B0G8VSMT9D) [![Portable Bathtub for Adult Foldable Soaking Bathtub for Hot SPA&Ice Bath Foldable Small Bathtub collapsible bathtub for Bathing 6-layer Insulated portable tub Space-Saving (Lotus 27.5X26.6 IN)](https://m.media-amazon.com/images/I/41qbdQYozbL.jpg)**Portable Bathtub for Adult Foldable Soaking Bathtub for Hot SPA&Ice Bath Foldable Small Bathtub collapsible bathtub for Bathing 6-layer Insulated portable tub Space-Saving (Lotus 27.5X26.6 IN)**Generic**$49.28**4.1★**▲ 126%**](https://www.amazon.com/dp/B0GQFR3Z9R)

**~~View all trending →~~**

## **What buyers say about bathtub**

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

### **What buyers love **

**Size-Overall**12%

*“Great product true size”*

**Ease Of Use**9%

*“Very handy”*

**Quality-Overall**9%

*“Amazing quality”*

**Value For Money**6%

*“Cant beat the price”*

**Advertised Vs Actual Product**5%

*“As Advertised”*

**Portability**5%

*“Nice and portable”*

**Strength**4%

*“The pump is powerful”*

**Durability**4%

*“Nice, durable material”*

**Assembly/Installation**4%

*“Assembly was easy”*

**Comfort-Overall**4%

*“comfortable”*

### **What buyers complain about **

**Size-Overall**10%

*“Little small”*

**Leak-Proof**9%

*“LEAKS BADLY”*

**Durability**6%

*“Completely broken after less than a year”*

**Strength**6%

*“Its not very sturdy”*

**Quality-Overall**5%

*“Poor quality control”*

**Value For Money**4%

*“Not worth the price”*

**Comfort-Overall**3%

*“the baby is not in a comfortable position”*

**Ease Of Use**3%

*“its imposible to remove”*

**Instructions/User Manual/Troubleshooting**3%

*“No directions”*

**Drainage**3%

*“drained no good”*

### **Top return reasons **

**Size-Overall**42%

**Advertised Vs Actual Product**5%

**Leak-Proof**5%

**Material Quality**4%

**Value For Money**4%

**Strength**4%

**Functionality-Overall**3%

**Age Suitability**3%

**Product Condition**3%

**Defective Material/Parts**3%

## **Common questions**

<dl>

<dt>**Is bathtub profitable to sell on Amazon United States?**</dt><dd>The niche generates $4.3M/yr across 91 tracked products. 30 of 43 products launched in the last 360 days are still selling. 90-day search growth is -1.8%. Flapen's verdict: Worth a look (58/100).</dd>

<dt>**How competitive is the bathtub niche?**</dt><dd>56 brands and 70 sellers compete. The top 5 products take 26% of clicks and top 5 brands hold 36% of demand.</dd>

<dt>**What do buyers complain about in bathtub?**</dt><dd>Top complaints mined from reviews: Size-Overall, Leak-Proof, Durability. The return rate is 4.5%.</dd>

<dt>**When does demand for bathtub peak?**</dt><dd>Demand is steady year-round — the busiest month runs 1.2× the quietest.</dd>

<dt>**What does it cost to enter the bathtub niche?**</dt><dd>Listings span $12.46–$853.07; the average listing price is $177.51 (sweet spot $15–$100). The average incumbent carries 1,109 reviews — the moat a new listing must climb.</dd>

</dl>

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