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54

birthday cup

Worth a look

Shows low returns (0.7%), but a small market ($56K/yr) keeps it on the watch list.

Market size 14Growth 29Conversion 26Competition 92Returns 96Price range 77Avg price 83Brand share 88Review moat 58Quality gap 21

Returns

Incredible0.7%

return rate — above 5% kills the launch gate

Competition

Great23%

top-5 click share — an open shelf

Brand share

Great47%

top-5 brand share — no brand owns this niche

Avg price

Great$18.04

avg listing price — sweet spot $15–$100

Price range

Great$4.83–$50.50

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

Review moat

Good1,192.86

avg incumbent reviews — the moat a new listing must climb

Growth

Okay+3.5%

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

Conversion

Okay2.1%

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

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Market size

Bad$56K

$56K/yr · 149K searches

According to Flapen's Amazon United States niche tracking, birthday cup is a $56K/yr Amazon United States market (149K searches/yr). The top 5 brands hold 47% of demand. Demand peaks in Aug. Verdict: Worth a look — 54/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

birthday cup market data

Units sold / yr
3K–4K
avg 0–100/product
Revenue / yr
$54K–$72K
units × avg price
Conversion rate
2.1%
Avg BSR
#1,708
Page quality
0%
Prime
99%
Sponsored
86%
Out of stock
9.7%
Avg brand age
28 months
Avg seller age
149 days

Competition & brand share

Clicks spread well past the top 5 (23% combined) — an open shelf where new products get seen.

Brands

54 falling

Sellers

103

Top-5 brand share

47%

Top 20: 73%

Top-5 click share

23%

Top 20: 54%

Open market

53%

  • Your Dream Party Shop18%
  • Jingmore12%
  • FoldTier8%
  • Qinyoung5%
  • Panspace3%
  • Teenyyou3%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +3.5% search growth over the last 90 days.
6K4KSpike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Aug · busiest ÷ quietest = 2.4×

Top birthday cup search terms

  • birthday cup42K/yr
  • happy birthday cups21K/yr
  • birthday cups for women18K/yr
  • birthday tumbler14K/yr
  • birthday girl cup11K/yr
  • birthday squad cups14K/yr
  • happy birthday cup12K/yr
  • birthday cups with lids7K/yr
  • birthday plastic cups4K/yr
  • plastic birthday cups4K/yr
All search terms

Top birthday cup 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.

0%3%$2K6%$3K9%$5K12%$7K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

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

What buyers say about birthday cup

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

What buyers love

Gifting Purpose44%

“Fun Gift”

Quality-Overall13%

“The bracelet is also nice quality”

Value For Money10%

“Well worth it”

Color7%

“Love the variety of colors”

Strength4%

“Very sturdy and great quality cups”

Advertised Vs Actual Product4%

“As advertised”

Size-Overall3%

“nice size”

Ease Of Use2%

“Easy to use”

Durability2%

“The cups are very durable”

Smell2%

“Smells amazing”

What buyers complain about

Size-Overall13%

“Didnt fit to size”

Quality-Overall9%

“Not as good of quality as the picture represents”

Advertised Vs Actual Product8%

“Not as advertised”

Strength6%

“Flimsy”

Color6%

“Recieved different colors”

Smell5%

“Its very hard to get rid of the smell”

Taste-Overall4%

“weird taste”

Value For Money4%

“Total waste of money”

Leak-Proof4%

“It is not leak proof”

Jamming/Clogging3%

“Cups would not separate and were stuck”

Top return reasons

Size-Overall42%
Value For Money10%
Advertised Vs Actual Product8%
Color7%
Quality-Overall7%
Material Quality3%
Smell3%
Thin2%
Strength2%
Leak-Proof2%

Common questions

Is birthday cup profitable to sell on Amazon United States?
The niche generates $56K/yr across 77 tracked products. 3 of 13 products launched in the last 360 days are still selling. 90-day search growth is +3.5%. Flapen's verdict: Worth a look (54/100).
How competitive is the birthday cup niche?
54 brands and 103 sellers compete. The top 5 products take 23% of clicks and top 5 brands hold 47% of demand.
What do buyers complain about in birthday cup?
Top complaints mined from reviews: Size-Overall, Quality-Overall, Advertised Vs Actual Product. The return rate is 0.7%.
When does demand for birthday cup peak?
Demand peaks in Aug; the busiest month runs 2.4× the quietest.
What does it cost to enter the birthday cup niche?
Listings span $4.83–$50.50; the average listing price is $18.04 (sweet spot $15–$100). The average incumbent carries 1,193 reviews — the moat a new listing must climb.