21 Inch Lawnmower
21 Inch Lawnmower shows demand growing +136.8% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Flapen Score
Top 39% of 8,839 Patio, Lawn & Garden niches · +2 vs the category median of 56
Is 21 Inch Lawnmower profitable on Amazon?
According to Flapen's Amazon United States niche tracking, 21 Inch Lawnmower is a $136K/yr Amazon United States market (58K searches/yr). The top 5 brands hold 69% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Worth a look — 58/100.
21 Inch Lawnmower: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Worth a look. Search demand moved +136.8% over the last 90 days and 0.7% of searches end in a purchase.
$136K
revenue / yr
Who owns the niche?
The top 5 brands hold 69% of demand, so 31% of the market is open.
31%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.0★ — the gap to enter on.
0/100
page quality · 53 products
Top 21 Inch Lawnmower products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
SKIL PWR CORE 40 Brushless 40V 20-Inch Self-Propelled Mower Kit Includes 6.0Ah Battery and Auto PWR JUMP Charger - SM4910C-11
- Price
- $345.13
- Rating
- 4.5/5
- Reviews
- 159
- Age
- 2y ago
Stihl RME 235 1.2 kW 13 kg Lightweight Electric Lawn Mower with 33 cm Cutting Width With 30 Litre Grass Collection with Level Indicator
- Price
- $374.51
- Rating
- 4.3/5
- Reviews
- 60
- Age
- 2y ago
Greenworks 80V 21 Self-Propelled Cordless Lawn Mower Brushless Motor LED Lights 4.0Ah Battery & Rapid Charger (75+ Compatible Tools)
- Price
- $467.98
- Rating
- 4.5/5
- Reviews
- 548
- Age
- 2y ago
Greenworks 40V 16 (Push) Cordless Lawn Mower 4.0Ah Battery (1/3 Acre Push Button Start Compatible with 75+ Tools)
- Price
- $228.07
- Rating
- 4.2/5
- Reviews
- 12,027
- Age
- 13y ago
Greenworks 60V 21 Brushless (Self-Propelled) Cordless Lawn Mower 2 x 4.0Ah Batteries (3/4 Acre Rapid Charger 4-in-1 LED Lights IPX4)
- Price
- $477.88
- Rating
- 4.5/5
- Reviews
- 582
- Age
- 4y ago
Trending
90-day click momentum
18 Electric Lawn Mower 40V Self-Propelled Cordless Mower with 2x5.0Ah Batteries & Type-C Cables Brushless Motor 2-in-1 Mulching & Bagging 6-Position Height Adjustment for Small to Medium Yards
- Price
- $199.24
- Rating
- 2.8/5
- Reviews
- 25
- Age
- 4mo ago
40V Cordless Lawn Mower 17 Walk Behind Electric 4.0 Ah Battery Powered Lawnmower with 50L Grass Bag Brushless Motor 6 Adjustable Cutting Heights for Garden/Patio/Yark/Lawn
- Price
- $205.44
- Rating
- 3.7/5
- Reviews
- 51
- Age
- 2mo ago
Litheli 18-inch 40V Self-Propelled Brushless Lawn Mower for Garden Yards Lightweight Cordless Mower with 6-Position Height Adjustment 25.0Ah Batteries Included
- Price
- $214.11
- Rating
- 2.0/5
- Reviews
- 20
- Age
- 3mo ago
Litheli 18 Self-Propelled Lawn Mower 40V Battery Lawn Mower(2 x 5.0Ah) Push Mower with Brushless Motor 2-in-1 Mulching & Bagging
- Price
- $192.77
- Rating
- 3.9/5
- Reviews
- 280
- Age
- 1y ago
Stihl RME 235 1.2 kW 13 kg Lightweight Electric Lawn Mower with 33 cm Cutting Width With 30 Litre Grass Collection with Level Indicator
- Price
- $374.51
- Rating
- 4.3/5
- Reviews
- 60
- Age
- 2y ago
Newest
by launch date40V Cordless Lawn Mower 17 Walk Behind Electric 4.0 Ah Battery Powered Lawnmower with 50L Grass Bag Brushless Motor 6 Adjustable Cutting Heights for Garden/Patio/Yark/Lawn
- Price
- $205.44
- Rating
- 3.7/5
- Reviews
- 51
- Age
- 2mo ago
Litheli 18-inch 40V Self-Propelled Brushless Lawn Mower for Garden Yards Lightweight Cordless Mower with 6-Position Height Adjustment 25.0Ah Batteries Included
- Price
- $214.11
- Rating
- 2.0/5
- Reviews
- 20
- Age
- 3mo ago
18 Electric Lawn Mower 40V Self-Propelled Cordless Mower with 2x5.0Ah Batteries & Type-C Cables Brushless Motor 2-in-1 Mulching & Bagging 6-Position Height Adjustment for Small to Medium Yards
- Price
- $199.24
- Rating
- 2.8/5
- Reviews
- 25
- Age
- 4mo ago
Litheli Lawn Mower 18 Electric Self Propelled for Garden Yards Lightweight Cordless Lawn Mower Brushless with 6-Position Height Adjustment 2 x 20V 4.0Ah Battery
- Price
- $232.81
- Rating
- 3.2/5
- Reviews
- 36
- Age
- 1y ago
Litheli 18 Self-Propelled Lawn Mower 40V Battery Lawn Mower(2 x 5.0Ah) Push Mower with Brushless Motor 2-in-1 Mulching & Bagging
- Price
- $192.77
- Rating
- 3.9/5
- Reviews
- 280
- Age
- 1y ago
Competition: brands, sellers & click share
Clicks spread well past the top 5 (35% combined) — an open shelf where new products get seen.
Brands
20 flat
Sellers
42
Top-5 brand share
69%
Top 20: 100%
Top-5 click share
35%
Top 20: 74%
Open market
24%
- Greenworks36%
- Skil10%
- Stihl8%
- WORX7%
- EGO Power+7%
- LiTHELi7%
21 Inch Lawnmower demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 9.6×
Top 21 Inch Lawnmower search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- electric self propelled lawn mower21K/yr
- cordless self propelled lawn mower10K/yr
- stihl mower5K/yr
- stihl lawn mower battery powered4K/yr
- stihl electric lawn mower4K/yr
- hart electric lawn mower4K/yr
- yard force lawn mower4K/yr
- lawnmower gas self propelled4K/yr
- push gas lawnmower1K/yr
- 21 inch lawnmower531/yr
What reviews say buyers love and hate about 21 Inch Lawnmower
What buyers mention most, as a share of all reviews.
What buyers love
75% of reviews“Easy to attach”
“Lightweight and easy to use”
“Cut great”
“Very affordable”
“Battery is good”
What buyers complain about
60% of reviews“Battery drained”
“broke after one use”
“Bad quality”
“Didn't work”
“Can't hold charge”
21 Inch Lawnmower return rate & reasons
Why buyers send it back, as a share of all return requests.
2.4%
Return rate
22%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common 21 Inch Lawnmower questions
The questions sellers ask about this niche, answered from the tracked metrics.
Related niches
Same-category niches scoring near this one — the next ones worth researching.
Best Flapen score
The highest-scoring niches we track right now, across every category.
