Is kingrinder profitable to sell on Amazon United States?

The niche generates $122K/yr across 9 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -8.8%. Flapen's verdict: Skip it (32/100).

How competitive is the kingrinder niche?

3 brands and 5 sellers compete. The top 5 products take 81% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in kingrinder?

Top complaints mined from reviews: Ease Of Use, Instructions/User Manual/Troubleshooting, Size-Overall. The return rate is 2.5%.

When does demand for kingrinder peak?

Demand peaks in Jan–Dec; the busiest month runs 1.8× the quietest.

What does it cost to enter the kingrinder niche?

Listings span $23.27–$144.28; the average listing price is $75.30 (sweet spot $15–$100). The average incumbent carries 415 reviews — the moat a new listing must climb.

kingrinder

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Avg price

Great$75.30

avg listing price — sweet spot $15–$100

Review moat

Great414.78

avg incumbent reviews — the moat a new listing must climb

Returns

Good2.5%

return rate — above 5% kills the launch gate

Price range

Good$23.27–$144.28

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

Market size

Okay$122K

$122K/yr · 91K searches

Conversion

Bad1.8%

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

Growth

Bad-8.8%

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

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Competition

Bad81%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Signals High Price Out of Stock

According to Flapen's Amazon United States niche tracking, kingrinder is a $122K/yr Amazon United States market (91K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Dec. Verdict: Skip it — 32/100.

Data updated Aug 4, 2026 · scored weekly · How we score niches

kingrinder market data

Units sold / yr: 2K–3K; avg 250–500/product
Revenue / yr: $151K–$188K; units × avg price
Conversion rate: 1.8%
Avg BSR: #32
Page quality: 0%
Prime: 100%
Sponsored: 67%
Out of stock: 30.8%
Avg brand age: 35 months
Avg seller age: 181 days

Competition & brand share

The top 5 products capture 81% of clicks — a locked-up shelf that new listings rarely crack.

Brands

3 rising

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

81%

Top 20: 100%

Open market

KINGrinder95%
CEVING3%
TIMEMORE1%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -8.8% search growth over the last 90 days.

Peak months: Jan, Dec · busiest ÷ quietest = 1.8×

Open Trend

Top kingrinder search terms

kingrinder71K/yr -6.3%2.5% conv.
king grinder10K/yr -12.3%1.6% conv.
kingrinder k411K/yr -25.3%2.1% conv.

All search terms

Top kingrinder 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★)

All 9 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

KINGrinder P2 Lightweight Manual Coffee Grinder ABS Body Stainless Burr

KINGrinder$46.004.6★348 rev

GrayKINGrinder K6 Manual Coffee Grinder Straight Handle Stainless Burr

KINGrinder$100.504.6★905 rev

SliverKINGrinder K6 Manual Coffee Grinder Straight Handle Stainless Burr

KINGrinder$106.404.6★905 rev

KINGrinder P0 Lightweight Manual Coffee Grinder ABS Body Stainless Burr

KINGrinder$23.274.8★333 rev

SliverKINGrinder K2 Manual Coffee Grinder Straight Handle Stainless Burr

KINGrinder$85.154.7★141 rev

Newest

by launch date

SliverKINGrinder K2 Manual Coffee Grinder Straight Handle Stainless Burr

KINGrinder$85.15141 rev

6mo ago

KINGrinder K7 Manual Coffee Grinder Bent Handle Stainless Burr

KINGrinder$144.2823 rev

7mo ago

CEVING Worlds First 60g Large Capacity Manual Coffee Grinder Black

CEVING$30.93599 rev

1y ago

SliverKINGrinder K6 Manual Coffee Grinder Straight Handle Stainless Burr

KINGrinder$106.40905 rev

2y ago

GrayKINGrinder K6 Manual Coffee Grinder Straight Handle Stainless Burr

KINGrinder$100.50905 rev

2y ago

What buyers say about kingrinder

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

What buyers love

Quality-Overall22%

“Decent build quality”

Value For Money14%

“Excellent value”

Ease Of Use11%

“Easy to Use”

Adjustability/Rotatability/Reclining5%

“its very adjustable”

Durability4%

“I've used it daily since it arrived and no problems whatsoever”

Strength4%

“Nice grinder, very solid”

Efficiency3%

“Works better than I thought”

Size-Overall3%

“The grinds are a consistent size”

Advertised Vs Actual Product3%

“Works better than I thought”

Ease Of Cleaning3%

“Excellent small grinder, easy to use and clean”

What buyers complain about

Ease Of Use9%

“a pain to use”

Instructions/User Manual/Troubleshooting7%

“manuals are not very detailed”

Size-Overall7%

“First, its a little larger”

Durability6%

“after one month of use, they became not even”

Material Quality6%

“Plastic not super durable”

Quality-Overall4%

“slightly lack in clarity”

Jamming/Clogging4%

“It completely jammed after 1 month of normal and correct use”

Ease Of Cleaning3%

“makes things messy”

Grip2%

“No grip”

Design-Overall2%

“This is a serious design flaw”

Top return reasons

Functionality-Overall21%

Size-Overall12%

Value For Money8%

Ease Of Use8%

Advertised Vs Actual Product6%

Product Condition6%

Mechanism Issues5%

Material Quality5%

Handle Quality5%