Is cpm machine knee profitable to sell on Amazon United States?

The niche generates $219K/yr across 30 tracked products. 3 of 14 products launched in the last 360 days are still selling. 90-day search growth is -10.3%. Flapen's verdict: Skip it (41/100).

How competitive is the cpm machine knee niche?

22 brands and 35 sellers compete. The top 5 products take 43% of clicks and top 5 brands hold 73% of demand.

What do buyers complain about in cpm machine knee?

Top complaints mined from reviews: Durability, Noise Level, Functionality-Overall. The return rate is 4.7%.

When does demand for cpm machine knee peak?

Demand is steady year-round — the busiest month runs 1.6× the quietest.

What does it cost to enter the cpm machine knee niche?

Listings span $19.66–$840.05; the average listing price is $241.65 (sweet spot $15–$100). The average incumbent carries 617 reviews — the moat a new listing must climb.

cpm machine knee

Skip it

Weak search conversion (0.7%) — this niche doesn't clear our bar today.

Review moat

Good617

avg incumbent reviews — the moat a new listing must climb

Competition

Good43%

top-5 click share — leaders hold, buyers still browse

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Brand share

Good73%

top-5 brand share — brands hold most of the demand

Market size

Okay$219K

$219K/yr · 138K searches

Avg price

Okay$241.65

avg listing price — sweet spot $15–$100

Returns

Okay4.7%

return rate — above 6% kills the launch gate

Growth

Bad-10.3%

90-day search growth — must beat 0% to launch

Price range

Bad$19.66–$840.05

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Bad0.7%

search→purchase rate — share of searches ending in a sale

According to Flapen's Amazon United States niche tracking, cpm machine knee is a $219K/yr Amazon United States market (138K searches/yr). The top 5 brands hold 73% of demand. Verdict: Skip it — 41/100.

Data updated Jul 10, 2026 · scored weekly · How we score niches

cpm machine knee market data

Units sold / yr: 750–1K; avg 0–100/product
Revenue / yr: $181K–$242K; units × avg price
Launch success: 21%; 3 of 14 new (360d)
Conversion rate: 0.7%
Avg BSR: #1,831
Page quality: 0%
Prime: 77%
Sponsored: 83%
Out of stock: 24.2%
Avg brand age: 29 months
Avg seller age: 171 days

Competition & brand share

The top 5 products take 43% of clicks — established leaders, but buyers still shop beyond them.

Brands

22 falling

Sellers

Top-5 brand share

73%

Top 20: 99%

Top-5 click share

43%

Top 20: 91%

Open market

27%

SVZIOOG33%
Generic15%
SOOTHEFFECT7%
Katywixu7%
SKYRO6%
Movao6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -10.3% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.6×

Open Trend

Top cpm machine knee search terms

cpm machine knee after surgery35K/yr -30.1%0.3% conv.
cpm machine knee23K/yr +27.6%0.3% conv.
cpm machine22K/yr -10.2%0.2% conv.
knee flexion machine8K/yr +9.3%0.5% conv.
cpm machine for knee7K/yr +7.5%0.3% conv.
continuous passive motion machine8K/yr +4.5%0.2% conv.
knee bending machine9K/yr -26.5%0.5% conv.
knee rehab machine3K/yr +114.2%0.3% conv.
passive motion machine for knee4K/yr -4.3%0.5% conv.
continuous passive motion machine knee4K/yr +18.2%0.9% conv.

All search terms

Top cpm machine knee 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)8 products missing review or click data not plotted

All 30 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

FSA/HSA Eligible Electric Knee Glide for Knee Replacement Recovery Aids Kit Knee Therapy Exercise Strengthening Equipment for PCL ACL MCL Knee Surgery Before and After White

SVZIOOG$191.264.8★19 rev

OEM New CPM Machine Knee Exercise Continuous Passive Motion Leg Exercise Unit New

Generic$624.400.0★0 rev

Electric Prone Knee Exerciser with Smart Remote Control for Knee Replacement Recovery Aids Kit Knee Therapy Exercise Strengthening Equipment for ACL PCL MCL Gender-Neutral(Left/Right Leg Compatible)2

SVZIOOG$233.884.2★4 rev

Knee Replacement Recovery Aids Ice Machine Knee Surgery Recovery Equipment Physical Therapy Equipment

SOOTHEFFECT$29.354.4★428 rev

Electric CPM Machine Knee After Surgery(Prone Position) with Remote Control Knee Therapy Exercise Strengthening Equipment for ACL PCL MCL Rehabilitation Gender-Neutral-Left/Right Leg

Katywixu$210.200.0★0 rev

Newest

by launch date

CPM Machine for Knee Exercise Continuous Passive Motion Leg Rehabilitation Unit Easy to Use Physical Therapy Equipment for Post-Surgery Recovery Adjustable Professional & Effective Home Use

Generic$840.050 rev

1mo ago

OEM New CPM Machine Knee Exercise Continuous Passive Motion Leg Exercise Unit New

Generic$624.400 rev

1mo ago

Electric CPM Machine Knee After Surgery Replacement Automatic Knee Flexion Machine for PCL ACL MCL Continuous Passive Motion Leg Press for Rehab/ Low-Impact Leg Trainer/Orthopedic Recovery

Morzhunis$200.000 rev

2mo ago

Draviple Electric Knee Glide Smart Remote Knee Strengthening Device

Draviple$193.121 rev

2mo ago

Electric Prone Knee Exerciser with Smart Remote Control for Knee Replacement Recovery Aids Kit Knee Therapy Exercise Strengthening Equipment-Black

SVZIOOG$226.602 rev

3mo ago

What buyers say about cpm machine knee

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

What buyers love

Quality-Overall14%

“Great product as described”

Ease Of Use14%

“Easy to open”

Noise Level8%

“Nice n quiet”

Advertised Vs Actual Product8%

“As described”

Efficiency7%

“Works well for what I need”

Comfort-Overall6%

“Extremely comfortable”

Value For Money6%

“Great value”

Exercise/Sports Suitability4%

“Very nice exercise”

Weight Light3%

“Lightweight easy to move”

Pain Relief-Overall2%

“Now I have less pain”

What buyers complain about

Durability8%

“Broke after two weeks”

Noise Level7%

“very noisy”

Functionality-Overall6%

“probably not effective”

Instructions/User Manual/Troubleshooting5%

“no user manual”

Exercise/Sports Suitability5%

“ineffective for exercise”

Weight Heavy4%

“Its kinda bulky”

Ease Of Use3%

“I had a hard time getting it to work”

Size-Overall3%

“This is smaller”

Value For Money3%

“not money well spent”

Quality-Overall3%

“there seems to be a consistency or quality control issue”

Top return reasons

Functionality-Overall18%

Size-Overall11%

Advertised Vs Actual Product11%

Noise Level7%

Defective Material/Parts6%

Ease Of Use6%