---
title: "Costway Portable Washing Machine — $139K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/appliances/costway-portable-washing-machine"
last_updated: "2026-08-09T08:58:29.456Z"
locale: en
meta:
description: "Niche score 39/100 · $139K/yr market · 62K searches/yr · $177.78 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 39/100 · $139K/yr market · 62K searches/yr · $177.78 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Costway Portable Washing Machine — $139K/yr Amazon US Niche (2026) - Flapen"
---
# **costway portable washing machine**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 31Growth 31Conversion 16Competition 39Returns 87Price range 9Avg price 50Brand share 0Review moat 54Quality gap 83
**Returns**
**Great****1.4%**
return rate — above 5% kills the launch gate
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****1,343.47**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Good****$177.78**
avg listing price — sweet spot $15–$100
**Competition**
**Okay****62%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Okay****$139K**
$139K/yr · 62K searches
**Growth**
**Okay****+4.7%**
90-day search growth — must beat 0% to launch
**Conversion**
**Bad****1.3%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Bad****$78.36–$312.68**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**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, costway portable washing machine is a $139K/yr Amazon United States market (62K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Sep. Verdict: Skip it — 39/100.
Data updated Jul 5, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **costway portable washing machine market data**
- **Units sold / yr**
- **500–750**
- avg 0–100/product
- **Revenue / yr**
- **$89K–$133K**
- units × avg price
- **Conversion rate**
- **1.3%**
- **Avg BSR**
- **#120**
- **Page quality**
- **0%**
- **Prime**
- **24%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **27 months**
- **Avg seller age**
- **182 days**
## **Competition & brand share**
The top 5 products take 62% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**3 **▼falling
**Sellers**
**17**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**62%**
Top 20: 100%
**Open market**
**0%**
- COSTWAY92% - Auertech6% - BLACK+DECKER2% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 108 weeks — +4.7% search growth over the last 90 days.
4K3KSpike '24Spike '25Prime Day '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/us/appliances/costway-portable-washing-machine/trend)
## **Top costway portable washing machine search terms**
- **costway portable washing machine**50K/yr+3.3%1.1% conv. - **costway portable washer**5K/yr-4.4%0.6% conv. - **costway washing machine**5K/yr+14.4%0.7% conv. - **costway washer**2K/yr+39.7%1.4% conv. [**All search terms **](https://flapen.com/research/us/appliances/costway-portable-washing-machine/search-terms)
## **Top costway portable washing machine 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%$14K20%$28K30%$42K40%$55K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 17 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**COSTWAY Portable Washing Machine 12Lbs Washer and 8Lbs Spinner Blue+White**COSTWAY**$141.49**4.3★2,322 rev](https://www.amazon.com/dp/B08Z3GD7KN) [2**COSTWAY Portable Washing Machine 8Lbs Capacity Full-automatic Washer with 6 Wash Programs LED Display 3 Water Levels Compact Laundry Washer and Dryer Combo for Home Apartment Dorm RVs**COSTWAY**$218.08**4.4★229 rev](https://www.amazon.com/dp/B0BBQ69PWX) [3**COSTWAY Portable Washing Machine Twin Tub 26 Lbs Capacity 18 Lbs Washer and 8 Lbs Spinner Compact Washer with Control Knobs Timer Function Drain Pump Laundry washer for Apartment RV Blue**COSTWAY**$161.36**4.3★465 rev](https://www.amazon.com/dp/B097K9FZB2) [4**COSTWAY Portable Washing Machine Twin Tub 26lbs Capacity Laundry Washer 18lbs Washer and 8lbs Spinner Combo with Timer Knobs Built-in Drain Pump Compact Washer for Home Dorm Apartment Blue+White**COSTWAY**$169.17**4.0★562 rev](https://www.amazon.com/dp/B0CG9DRYMZ) [5**COSTWAY Portable Washing Machine 2-in-1 Laundry Washer and Spin Combo with 10 Programs 8.8lbs Capacity Drain Pump and LED Display Full Automatic Washer for Apartment RVs Dorm Grey**COSTWAY**$221.20**4.4★415 rev](https://www.amazon.com/dp/B08QFQF9HG)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**COSTWAY 20Lbs Portable Washing Machine with Built-in Drain Pump Black**COSTWAY**$137.65**24 rev3mo ago](https://www.amazon.com/dp/B0GRV1GNMK) [**COSTWAY Portable Washing Machine Twin Tub 20Lbs Capacity Compact Laundry Washer(12Lbs) and Spinner(8Lbs) Durable Design for Apartment Dorm RV Blue+White**COSTWAY**$136.58**1,583 rev10mo ago](https://www.amazon.com/dp/B0FP57DL97) [**COSTWAY Mini Portable Washing Machine 5.5 lbs Capacity Compact Laundry Washer with Spin Tub & Drain Hose Perfect for Apartment Dorms RV Home (Blue)**COSTWAY**$78.36**113 rev1y ago](https://www.amazon.com/dp/B0F5QDL798) [**COSTWAY Mini Portable Washing Machine 5.5 lbs Capacity Compact Laundry Washer with Spin Tub & Drain Hose Perfect for Apartment Dorms RV Home (Grey)**COSTWAY**$78.46**113 rev1y ago](https://www.amazon.com/dp/B0F5QDPMMM) [**COSTWAY Portable Washing Machine 12Lbs Washer and 8Lbs Spinner Grey+White**COSTWAY**$139.91**2,322 rev2y ago](https://www.amazon.com/dp/B0D6VPQJ96)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**COSTWAY 20Lbs Portable Washing Machine with Built-in Drain Pump Black**COSTWAY**$137.65**4.2★**▲ 304%**](https://www.amazon.com/dp/B0GRV1GNMK) [**BLACK+DECKER 1.7 Cu. Ft. Portable Washer 11 lb. Capacity BPWM16W White**BLACK+DECKER**$312.68**4.4★**▲ 202%**](https://www.amazon.com/dp/B07RNMDHRL) [**COSTWAY Portable Washing Machine 8 Lbs Capacity Built-in Drain Pump Compact Laundry Washer with 6 Programs 6 Water Levels Child Lock Full-Automatic washer for RV Dorm Apartment Green**COSTWAY**$150.73**4.0★**▲ 130%**](https://www.amazon.com/dp/B099NHNN18) [**COSTWAY Portable Washing Machine Twin Tub 26 Lbs Capacity 18 Lbs Washer and 8 Lbs Spinner Compact Washer with Control Knobs Timer Function Drain Pump Laundry washer for Apartment RV Blue**COSTWAY**$161.36**4.3★**▲ 76%**](https://www.amazon.com/dp/B097K9FZB2) [**COSTWAY Portable Washing Machine Twin Tub 20Lbs Capacity Compact Laundry Washer(12Lbs) and Spinner(8Lbs) Durable Design for Apartment Dorm RV Blue+White**COSTWAY**$136.58**4.2★**▲ 69%**](https://www.amazon.com/dp/B0FP57DL97)
**~~View all trending →~~**
## **What buyers say about costway portable washing machine**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Cleaning**17%
*“It cleans great”*
**Quality-Overall**11%
*“Great quality”*
**Value For Money**10%
*“Worth Every Penny”*
**Ease Of Use**9%
*“Easy to function”*
**Advertised Vs Actual Product**7%
*“Works as advertised”*
**Size-Overall**6%
*“The size is compact”*
**Durability**4%
*“Seems durable”*
**Strength**4%
*“This machine is strong”*
**Weight Light**3%
*“Light weight good little machine”*
**Portability**3%
*“Great portable unit”*
### **What buyers complain about **
**Durability**16%
*“Didnt last”*
**Size-Overall**12%
*“it doesn't fit anything”*
**Leak-Proof**9%
*“came with washer it leaks”*
**Functionality-Overall**7%
*“Doesn't work well”*
**Noise Level**6%
*“Kinda loud”*
**Ease Of Cleaning**4%
*“This washer is rife with problems of all kinds”*
**Value For Money**4%
*“it turned out to be a waste of money”*
**Ease Of Use**3%
*“hard to move”*
**Quality-Overall**3%
*“I don't believe these positive feedbacks”*
**Water Resistance**3%
*“the product itself was wet inside the box”*
### **Top return reasons **
**Size-Overall**39%
**Functionality-Overall**15%
**Defective Material/Parts**7%
**Leak-Proof**7%
**Advertised Vs Actual Product**6%
**Noise Level**5%
**Connectivity-Overall**2%
**Compatibility-Overall**2%
**Water Resistance**2%
**Storage Capacity**2%
## **Common questions**
- **Is costway portable washing machine profitable to sell on Amazon United States?**
- The niche generates $139K/yr across 17 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is +4.7%. Flapen's verdict: Skip it (39/100).
- **How competitive is the costway portable washing machine niche?**
- 3 brands and 17 sellers compete. The top 5 products take 62% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in costway portable washing machine?**
- Top complaints mined from reviews: Durability, Size-Overall, Leak-Proof. The return rate is 1.4%.
- **When does demand for costway portable washing machine peak?**
- Demand peaks in Sep; the busiest month runs 1.5× the quietest.
- **What does it cost to enter the costway portable washing machine niche?**
- Listings span $78.36–$312.68; the average listing price is $177.78 (sweet spot $15–$100). The average incumbent carries 1,343 reviews — the moat a new listing must climb.
## **Related niches in Appliances**
- 60 [**deviled egg platter**](https://flapen.com/research/us/appliances/deviled-egg-platter)$1.3M/yr-52.4%**Worth a look**- 60 [**hat washer for washing machine**](https://flapen.com/research/us/appliances/hat-washer-for-washing-machine)$1.9M/yr+56.4%**Launch it**- 60 [**fppwfu01 water filter replacement**](https://flapen.com/research/us/appliances/fppwfu01-water-filter-replacement)$8.5M/yr+8.2%**Launch it**- 60 [**refrigerators**](https://flapen.com/research/us/appliances/refrigerators)$2.2M/yr+11.8%**Launch it**- 60 [**opal ice maker filter**](https://flapen.com/research/us/appliances/opal-ice-maker-filter)$747K/yr+28.5%**Worth a look**- 61 [**dryer vent hose**](https://flapen.com/research/us/appliances/dryer-vent-hose)$4.5M/yr-2.7%**Worth a look**[**All Appliances niches **](https://flapen.com/research/us/appliances)