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Kill a Watt

Fail

The top 5 brands take 100% of clicks, so Kill a Watt is a Fail.

Flapen Score
41
41 / 100
Ranks 7,340 of 9,536 Tools & Home Improvement niches · −7 vs the category median of 48
Market size
$320K/yr174K searches / yr
90-day growth
-7.4%search demand this quarter
Competition
81%top-5 click share · 5 brands · 43 sellers

Flapen Score

Kill a Watt against its category

The dotted line is the Tools & Home Improvement average. Past it, Kill a Watt is stronger. Inside it, weaker.

41Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Kill a Watt market on Amazon at a glance

Shoppers on Amazon United States searched for Kill a Watt 174K times last year and spent an estimated $320K. All 5 brands take every click. Flapen scores it 41 out of 100, a Fail.

01 · Demand

7.8% of searches ended in a purchase last week.

Shoppers searched for this 174K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. In the latest week, 7.8% of those searches ended in a purchase. Searches in the last 90 days moved -7.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated $320K a year.

Searches, last 12 months
174K
Growth, 90 days vs prior 90
-7.4%
Conversion, latest week
7.8%
Market size, estimated
$320Ka year
Peak month
January1.5× the quietest month
Top search term
kill a watt meter50K searches a year

02 · Price

A sale here is worth $23.74.

Listings sell for $23.74 on average, from $9.69 to $47.08. Amazon reports units sold in ranges. This niche sold 13K to 15K a year. The average listing sells 1,000 to 1,250 of them. At $23.74 that is $24K to $30K a year per listing.

Average price
$23.74inside the $15 to $100 sweet spot
Price range
$9.69–$47.08
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
13K–15K
Units per listing a year
1,000–1,250
Revenue per listing a year
$24K–$30K
Returns
2.6%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is reviews.

80% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #306 within Breakers, Load Centers & Fuses. It carries 3,854 reviews at 4.51 stars, so a new listing needs social proof before a better product.

Sponsored listings
80%
Prime listings
100%
Out of stock, average day
0.0%
Average rank
#306in Breakers, Load Centers & Fuses
Average rating
4.51 starsAmazon United States average 4.42 stars
Average reviews
3,854per listing
Listings tracked
10

04 · Newcomers

Brands here are settling in.

The brands on the shelf have sold for 51 months on average, so the names here are settling in.

Launched, last 12 months
0
Successful launches
0Amazon's first-year sales bar
Average brand age
51 months

Products

Top Kill a Watt products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Competition

Competition: brands, sellers & click share

The top 5 products take 81% of clicks. A locked shelf that new listings rarely crack.

$0$32K$64K$96K$128K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

5 flat

Sellers

43

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

81%

Top 20: 100%

Open market

0%

  • MECHEER47%
  • P333%
  • KILL A WATT11%
  • Tapo5%
  • HBN5%

Demand

Kill a Watt search demand

Weekly searches over the year, seasonality beneath. Pick a range.

5K4KSpike '24Holiday '24Prime Day '25Holiday '25SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.5×

Search terms

Top Kill a Watt search terms shoppers use

The exact words shoppers type, with yearly volume, growth, and conversion.

  • kill a watt meter50K/yr
  • kill a watt55K/yr
  • killawatt meter23K/yr
  • kill-a-watt meter13K/yr
  • killawatt9K/yr
  • kill-a watt6K/yr
  • kill a watt electricity usage monitor6K/yr
  • kill-a-watt7K/yr
  • kilowatt3K/yr
  • kill a watt power meter2K/yr

Reviews and returns

What reviews say buyers love and hate about Kill a Watt

We read the reviews and the return reasons for every product selling here.

23%of positive reviews mention “Ease Of Use”
11%of negative reviews mention “Measurement/Reading Accuracy”
2.6%of orders come back
“cost results just do not reflect an accurate readout”
A buyer, on “Measurement/Reading Accuracy”11% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

17 topics

NegativePositive

FAQ

Common Kill a Watt questions

Answered from the same tracked data.