Is kuromi cup profitable to sell on Amazon United States?

The niche generates $91K/yr across 44 tracked products. 4 of 10 products launched in the last 360 days are still selling. 90-day search growth is -1.7%. Flapen's verdict: Skip it (47/100).

How competitive is the kuromi cup niche?

16 brands and 37 sellers compete. The top 5 products take 37% of clicks and top 5 brands hold 68% of demand.

What do buyers complain about in kuromi cup?

Top complaints mined from reviews: Leak-Proof, Durability, Size-Overall. The return rate is 2.5%.

When does demand for kuromi cup peak?

Demand peaks in Dec; the busiest month runs 3.0× the quietest.

What does it cost to enter the kuromi cup niche?

Listings span $9.46–$46.48; the average listing price is $23.20 (sweet spot $15–$100). The average incumbent carries 4,134 reviews — the moat a new listing must climb.

Kuromi Cup

Skip it

A small market ($91K/yr) — this niche doesn't clear our bar today.

Avg price

Incredible$23.20

avg listing price — sweet spot $15–$100

Price range

Great$9.46–$46.48

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

Competition

Great37%

top-5 click share — an open shelf

Returns

Good2.5%

return rate — above 5% kills the launch gate

Brand share

Good68%

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

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Review moat

Bad4,134.48

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-1.7%

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

Market size

Bad$91K

$91K/yr · 213K searches

Conversion

Bad1.8%

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

Signals No Dominant Brand

Is kuromi cup profitable on Amazon?

According to Flapen's Amazon United States niche tracking, kuromi cup is a $91K/yr Amazon United States market (213K searches/yr). The top 5 brands hold 68% of demand. Demand peaks in Dec. Verdict: Skip it — 47/100.

Data updated Jul 26, 2026 · scored weekly · How we score niches

kuromi cup market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 4K–5K; avg 0–100/product
Revenue / yr: $93K–$116K; units × avg price
Conversion rate: 1.8%
Avg BSR: #2,425
Page quality: 0%
Prime: 98%
Sponsored: 68%
Out of stock: 33.9%
Avg brand age: 24 months
Avg seller age: 144 days

Competition: brands, sellers & click share

Clicks spread well past the top 5 (37% combined) — an open shelf where new products get seen.

Brands

16 falling

Sellers

Top-5 brand share

68%

Top 20: 100%

Top-5 click share

37%

Top 20: 83%

Open market

26%

Silver Buffalo20%
SANRIO17%
Bioworld12%
Fast Forward11%
Get Trend8%
Clwalny7%

kuromi cup demand & seasonality

Weekly Amazon search volume, last 104 weeks — -1.7% search growth over the last 90 days.

Peak months: Dec · busiest ÷ quietest = 3.0×

Open Trend

Top kuromi cup search terms shoppers use

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

kuromi water bottle89K/yr +33.9%1.5% conv.
kuromi cup44K/yr -25.1%1.1% conv.
kuromi tumbler27K/yr -23.2%1.2% conv.
kuromi water bottles for girls15K/yr +38.2%1.1% conv.
kuromi stanley cup16K/yr -20.5%1.3% conv.
kuromi cups6K/yr -27.3%0.8% conv.
kuromi travel mugs and tumblers5K/yr -60.8%1.5% conv.
kuromi bottle5K/yr -2.5%1.3% conv.
kuromi stanley6K/yr -30.6%0.7% conv.

All search terms

Top kuromi cup products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

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

Top sellers

by 90-day click share

Silver Buffalo Sanrio Hello Kitty and Friends Kuromi Cherry Hearts Water Bottle with Screw-On Lid 28 Ounces

Silver Buffalo$13.374.5★3,773 rev

Kuromi Purple All-Over Print 40 Oz Stainless Steel Tumbler With Handle

Bioworld$24.264.6★457 rev

Fast Forward Sanrio Hello Kitty 40oz Stainless Steel Tumbler with Handle Lid & Straw (Purple Kuro)

Fast Forward$19.304.2★125 rev

SANRIO Kuromi Stainless Steel Water Bottle for Girls - Bundle with 14 Oz Kuromi Drinking Cup For Home School and Sports Plus Stickers More Water Bottle with Straw

SANRIO$17.514.2★55 rev

Clwalny Cartoon Huntrix Water Bottle for Girls 25oz Leak Proof with Straw Lid Gifts for Girls (Kuro)

Clwalny$14.963.1★8 rev

Newest

by launch date

SANRIO Kuromi Water Bottle for Girls - Bundle with 16 Oz Kuromi Drinking Cup with Straw and Carrying Strap for Home School Sports Plus Stickers Double Cover Reusable Water Bottle

SANRIO$20.382 rev

4mo ago

Get Trend Hello Kitty Cinnamoroll 30oz Tumbler with Handle and Straw Kids Stainless Steel Insulated Water Bottle BPA-Free Leak-Proof Cold for 12h Hot 5h Kawaii Gifts for Girls (Blue Cinnamoroll)

Get Trend$25.3978 rev

6mo ago

Clwalny Cartoon Huntrix Water Bottle for Girls 25oz Leak Proof with Straw Lid Gifts for Girls (Kuro)

Clwalny$14.968 rev

9mo ago

My Melody & Kuromi Design Your Own Trendy Tumbler 20 oz. BPA-Free

Horizon Group USA$15.37124 rev

10mo ago

SANRIO Kuromi Stainless Steel Water Bottle for Girls - Bundle with 16 Oz Kuromi Drinking Cup For Home School and Sports Plus More Double Walled Insulated Tumbler

SANRIO$23.444 rev

10mo ago

What reviews say buyers love and hate about kuromi cup

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

What buyers love

Quality-Overall18%

“Good quality”

Temperature Retention11%

“keeps water cold”

Size-Overall10%

“Size is perfect”

Durability9%

“durable, which makes it seem high-quality and long-lasting”

Leak-Proof8%

“Leak Proof”

Color7%

“Beautiful Color”

Gifting Purpose5%

“Really cute gift”

Value For Money4%

“Its worth it”

Ease Of Cleaning3%

“Easy clean”

Advertised Vs Actual Product3%

“Does what it needs to do”

What buyers complain about

Leak-Proof11%

“my bottle leaks”

Durability10%

“Poor durability”

Size-Overall8%

“It's not a tight fit like others I've bought”

Quality-Overall8%

“Cup is very cheaply made for price”

Value For Money8%

“A little expensive”

Handle Quality4%

“Broken handle”

Temperature Retention4%

“Items cold”

Product Condition3%

“Arrived with 2 scuff marks on it making it appear used”

Ease Of Use3%

“Hard to open”

Material Quality2%

“However, I feel that some of the materials could be a bit more durable”

Top return reasons

Size-Overall34%

Color20%

Leak-Proof10%

Value For Money6%

Advertised Vs Actual Product4%

Product Condition3%

Functionality-Overall2%

Scratch Resistance2%

Smell2%

Weight Heavy1%

Common kuromi cup questions

Is kuromi cup profitable to sell on Amazon United States?: The niche generates $91K/yr across 44 tracked products. 4 of 10 products launched in the last 360 days are still selling. 90-day search growth is -1.7%. Flapen's verdict: Skip it (47/100).
How competitive is the kuromi cup niche?: 16 brands and 37 sellers compete. The top 5 products take 37% of clicks and top 5 brands hold 68% of demand.
What do buyers complain about in kuromi cup?: Top complaints mined from reviews: Leak-Proof, Durability, Size-Overall. The return rate is 2.5%.
When does demand for kuromi cup peak?: Demand peaks in Dec; the busiest month runs 3.0× the quietest.
What does it cost to enter the kuromi cup niche?: Listings span $9.46–$46.48; the average listing price is $23.20 (sweet spot $15–$100). The average incumbent carries 4,134 reviews — the moat a new listing must climb.