---
title: "Medical King Foot Spa — $34K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/beauty-personal-care/medical-king-foot-spa"
last_updated: "2026-08-10T09:34:58.467Z"
locale: en
meta:
description: "Niche score 34/100 · $34K/yr market · 10K searches/yr · $51.50 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 34/100 · $34K/yr market · 10K searches/yr · $51.50 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Medical King Foot Spa — $34K/yr Amazon US Niche (2026) - Flapen"
---
# **medical king foot spa**
**Skip it**
A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Market size 9Growth 44Conversion 71Competition 0Returns 27Price range 95Avg price 93Brand share 0Review moat 22Quality gap 62
**Price range**
**Incredible****$29.26–$69.70**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$51.50**
avg listing price — sweet spot $15–$100
**Conversion**
**Good****6.5%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Growth**
**Okay****+15.1%**
90-day search growth — must beat 0% to launch
**Returns**
**Okay****4.8%**
return rate — above 5% kills the launch gate
**Review moat**
**Bad****10,127.2**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Bad****$34K**
$34K/yr · 10K searches
**Competition**
**Bad****100%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, medical king foot spa is a $34K/yr Amazon United States market (10K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Dec. Verdict: Skip it — 34/100.
Data updated Jul 20, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **medical king foot spa market data**
- **Units sold / yr**
- **750–1K**
- avg 0–100/product
- **Revenue / yr**
- **$39K–$52K**
- units × avg price
- **Conversion rate**
- **6.5%**
- **Avg BSR**
- **#3,384**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **80%**
- **Out of stock**
- **7.7%**
- **Avg brand age**
- **39 months**
- **Avg seller age**
- **187 days**
## **Competition & brand share**
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**5 **▲rising
**Sellers**
**10**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- SPA4PIEDS30% - Medical king21% - Homedics19% - ACCOPURO17% - MODILIC13%
## **Demand & seasonality**
Weekly Amazon search volume, last 86 weeks — +15.1% search growth over the last 90 days.
450350Prime Day '24Spike '24Holiday '24Spike '25Holiday '25Spike '26 seasonAugOctNovDecJanFebMarAprMayJanFebMarAprMayJun
Peak months: Dec · busiest ÷ quietest = 5.8×
[**Open Trend **](https://flapen.com/research/us/beauty-personal-care/medical-king-foot-spa/trend)
## **Top medical king foot spa 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%$3K20%$7K30%$10K40%$14K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 5 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Collapsible Heated Foot Spa with Bubble and Red Light Temperature Control Foot Bath Massager and Soaking Tub Featuring 8 Shiatsu Massage Rollers Pumice Stone and Built-in Timer Ideal Gift for Wife Mom**SPA4PIEDS**$50.05**4.3★2,023 rev](https://www.amazon.com/dp/B0C23HC6SJ) [2**Medical king Foot Spa Massager with Heat 14 Rollers in Foot Shape - 5 in 1 Foot Bath Massager - Adjustable Heating Bubbles Vibration Pumice Stone Mini Massage Points**Medical king**$49.48**4.3★8,587 rev](https://www.amazon.com/dp/B0923BKP4Y) [3**Homedics Bubble Mate Foot Spa Toe Touch Controlled Foot Bath with Invigorating Bubbles and Splash Proof Raised Massage Nodes and Removable Pumice Stone**Homedics**$29.26**4.4★39,951 rev](https://www.amazon.com/dp/B000TK8RCO) [4**ACCOPURO Foot Soaking Tub with Ozone UV Foot Spa Bath Massager with Heat and Bubbles Custom Temp Control Pressure Rollers for Tired Feet Gift Set for Parents Couples (Black)**ACCOPURO**$69.70**4.5★29 rev](https://www.amazon.com/dp/B0GR4SD465) [5**MODILIC Foot Soaking Tub Foot Spa Bath Massager with Heat Epsom Salt Bubbles Vibration and Red Light Foot Soaker Birthday Gifts for Mom Dad Women Men Her Him**MODILIC**$58.98**4.4★46 rev](https://www.amazon.com/dp/B0GSFSJ2JW)
### **Newest**
by launch date
[**MODILIC Foot Soaking Tub Foot Spa Bath Massager with Heat Epsom Salt Bubbles Vibration and Red Light Foot Soaker Birthday Gifts for Mom Dad Women Men Her Him**MODILIC**$58.98**46 rev4mo ago](https://www.amazon.com/dp/B0GSFSJ2JW) [**ACCOPURO Foot Soaking Tub with Ozone UV Foot Spa Bath Massager with Heat and Bubbles Custom Temp Control Pressure Rollers for Tired Feet Gift Set for Parents Couples (Black)**ACCOPURO**$69.70**29 rev4mo ago](https://www.amazon.com/dp/B0GR4SD465) [**Collapsible Heated Foot Spa with Bubble and Red Light Temperature Control Foot Bath Massager and Soaking Tub Featuring 8 Shiatsu Massage Rollers Pumice Stone and Built-in Timer Ideal Gift for Wife Mom**SPA4PIEDS**$50.05**2,023 rev3y ago](https://www.amazon.com/dp/B0C23HC6SJ) [**Medical king Foot Spa Massager with Heat 14 Rollers in Foot Shape - 5 in 1 Foot Bath Massager - Adjustable Heating Bubbles Vibration Pumice Stone Mini Massage Points**Medical king**$49.48**8,587 rev5y ago](https://www.amazon.com/dp/B0923BKP4Y) [**Homedics Bubble Mate Foot Spa Toe Touch Controlled Foot Bath with Invigorating Bubbles and Splash Proof Raised Massage Nodes and Removable Pumice Stone**Homedics**$29.26**39,951 rev8y ago](https://www.amazon.com/dp/B000TK8RCO)
### **Trending**
90-day click momentum
[**MODILIC Foot Soaking Tub Foot Spa Bath Massager with Heat Epsom Salt Bubbles Vibration and Red Light Foot Soaker Birthday Gifts for Mom Dad Women Men Her Him**MODILIC**$58.98**4.4★**▲ 94%**](https://www.amazon.com/dp/B0GSFSJ2JW) [**ACCOPURO Foot Soaking Tub with Ozone UV Foot Spa Bath Massager with Heat and Bubbles Custom Temp Control Pressure Rollers for Tired Feet Gift Set for Parents Couples (Black)**ACCOPURO**$69.70**4.5★**▲ 94%**](https://www.amazon.com/dp/B0GR4SD465) [**Collapsible Heated Foot Spa with Bubble and Red Light Temperature Control Foot Bath Massager and Soaking Tub Featuring 8 Shiatsu Massage Rollers Pumice Stone and Built-in Timer Ideal Gift for Wife Mom**SPA4PIEDS**$50.05**4.3★**▲ 64%**](https://www.amazon.com/dp/B0C23HC6SJ) [**Homedics Bubble Mate Foot Spa Toe Touch Controlled Foot Bath with Invigorating Bubbles and Splash Proof Raised Massage Nodes and Removable Pumice Stone**Homedics**$29.26**4.4★**▼ 31%**](https://www.amazon.com/dp/B000TK8RCO) [**Medical king Foot Spa Massager with Heat 14 Rollers in Foot Shape - 5 in 1 Foot Bath Massager - Adjustable Heating Bubbles Vibration Pumice Stone Mini Massage Points**Medical king**$49.48**4.3★**▼ 46%**](https://www.amazon.com/dp/B0923BKP4Y)
## **What buyers say about medical king foot spa**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**12%
*“Good product for the price”*
**Quality-Overall**11%
*“Build Quality: Its sturdy, easy to fill, and most importantly easy to empty without making a mess”*
**Heating Element**8%
*“The heat works well and stays consistent, which I really like”*
**Comfort-Overall**6%
*“Comfortable”*
**Massage Quality**6%
*“This foot massage tube is good”*
**Ease Of Use**5%
*“Very easy to use”*
**Soothing Effect**5%
*“Very relaxing”*
**Water Resistance**3%
*“The temperature display makes it so easy to control the water temperature, I also like the UV and O3 sterilize ability”*
**Weight Light**2%
*“Light weight and easy to carry”*
**Ease Of Cleaning**2%
*“Easy to clean”*
### **What buyers complain about **
**Heating**25%
*“Doesn't heat water”*
**Value For Money**7%
*“Not a good value”*
**Advertised Vs Actual Product**6%
*“Inaccurate product description”*
**Temperature Retention**5%
*“the water does not stay warm”*
**Durability**5%
*“already broke within one month”*
**Quality-Overall**5%
*“Quality of the tub is not as expected”*
**Product Condition**4%
*“Arrived Used”*
**Water Resistance**3%
*“Does not keep water heated”*
**Salt Content**3%
*“salt particles in it”*
**Temperature Control**3%
*“Temperature retention is very poor”*
### **Top return reasons **
**Heating**23%
**Advertised Vs Actual Product**13%
**Salt Content**13%
**Functionality-Overall**11%
**Warmth**5%
**Size-Overall**4%
**Product Condition**4%
**Massage Quality**3%
**Quality-Overall**3%
**Value For Money**3%
## **Common questions**
- **Is medical king foot spa profitable to sell on Amazon United States?**
- The niche generates $34K/yr across 5 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +15.1%. Flapen's verdict: Skip it (34/100).
- **How competitive is the medical king foot spa niche?**
- 5 brands and 10 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in medical king foot spa?**
- Top complaints mined from reviews: Heating, Value For Money, Advertised Vs Actual Product. The return rate is 4.8%.
- **When does demand for medical king foot spa peak?**
- Demand peaks in Dec; the busiest month runs 5.8× the quietest.
- **What does it cost to enter the medical king foot spa niche?**
- Listings span $29.26–$69.70; the average listing price is $51.50 (sweet spot $15–$100). The average incumbent carries 10,127 reviews — the moat a new listing must climb.
## **Related niches in Beauty & Personal Care**
- 75 [**bio oil lotion**](https://flapen.com/research/us/beauty-personal-care/bio-oil-lotion)$654K/yr+95.9%**Worth a look**- 75 [**glossier futuredew serum**](https://flapen.com/research/us/beauty-personal-care/glossier-futuredew-serum)$344K/yr+383.6%**Worth a look**- 75 [**press on toenails**](https://flapen.com/research/us/beauty-personal-care/press-on-toenails)$2.4M/yr+79.4%**Launch it**- 75 [**skulta deep peptide eye mask**](https://flapen.com/research/us/beauty-personal-care/skulta-deep-peptide-eye-mask)$58K/yr>1,000%**Worth a look**- 75 [**mineral sunscreen spray**](https://flapen.com/research/us/beauty-personal-care/mineral-sunscreen-spray)$3.8M/yr+183.8%**Launch it**- 76 [**collagen oil**](https://flapen.com/research/us/beauty-personal-care/collagen-oil)$344K/yr+116.2%**Worth a look**[**All Beauty & Personal Care niches **](https://flapen.com/research/us/beauty-personal-care)