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18 inch dishwasher

Worth a look55/100

18 inch dishwasher shows demand growing +216.7%, but a concentrated shelf (top 5 take 67% of clicks) keeps it on the watch list.

Market/yr

$1.3M

Growth (1y)

+216.7%

Products

15

Brands

8

was 11 a year ago

Sellers

29

Price range

$363.36–$769.04

Returns

6.0%

Rating

4.1★

55/100

Worth a look

Scored 55/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns
Market size
39
×0.30
Growth
79
×0.30
Competition
35
×0.20
Quality gap
78
×0.10
Returns
50
×0.10

Demand

Weekly Amazon search volume, last 104 weeks — +216.7% year over year.
5K3KPrime Day '24Spike '24Holiday '24Spike '25Prime Day '25Black Friday '25Jul '24Nov '24Mar '25Jun '25Oct '25Feb '26

Seasonality

Monthly demand index across the year — 1.00 is average.

Peak months: Nov · busiest ÷ quietest = 1.6×

Competition

37%Honeywell
  • Honeywell37%
  • Midea36%
  • EdgeStar11%
  • Sharp6%
  • SPT4%
  • Frigidaire2%
  • Other (2 brands)3%

The top 5 products take 67% of clicks — established leaders, but buyers still shop beyond them. 8 brands and 29 sellers compete here.

Brands

8 falling

was 11 a year ago

Sellers

29

Top 5 brand share

95%

#ProductBrandPriceRatingReviewsClick shareTrend

Product shelf

All 15 tracked products in this niche.

Reviews

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

What buyers love

Ease Of Cleaning20%

“Cleans great”

Size-Overall17%

“It fits”

Noise Level16%

“Its not loud”

Value For Money11%

“Great product at a great price”

Leak-Proof6%

“It was not leaking”

Quality-Overall5%

“Stainless tub; good quality”

Advertised Vs Actual Product4%

“Item is as advertised so far”

Storage Capacity3%

“The 8-place setting capacity is perfect for our small family's daily meals, and the 6 program options are very practical, especially the quick wash and intensive wash”

Ease Of Use2%

“easy to use”

Compactness2%

“It is compact”

What buyers complain about

Leak-Proof15%

“there was something wrong with the pump leaking”

Quality-Overall13%

“Its cheap made”

Durability9%

“Breaks after only 3 months of ownership”

Assembly/Installation7%

“Painful installation”

Advertised Vs Actual Product6%

“Not was it was supposed to be”

Size-Overall6%

“You can't remove the top rack to fit larger items”

Noise Level4%

“barely audible when it is running”

Ease Of Cleaning4%

“rinsing and drying results will suffer”

Functionality-Overall4%

“would not drain”

Instructions/User Manual/Troubleshooting3%

“The manual. which was painfully confusing”

Top return reasons

  • Size-Overall33%
  • Leak-Proof14%
  • Defective Material/Parts14%
  • Functionality-Overall6%
  • Color4%
  • Portability3%
  • Assembly/Installation3%
  • Product Condition3%
  • Value For Money3%
  • Water Resistance2%

Data scraped July 5, 2026 · Marketplace baseline: 4.4★ avg rating · $22.65 median price · 2.2% median returns across 14,117 tracked niches.