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52

four ever a princess birthday

Worth a look

Shows no brand lock-in (top 5 brands take 42% of clicks), but a small market ($86K/yr) keeps it on the watch list.

Market size 21Growth 27Conversion 35Competition 72Returns 68Price range 63Avg price 77Brand share 93Review moat 91Quality gap 24

Brand share

Great42%

top-5 brand share — no brand owns this niche

Review moat

Great174.84

avg incumbent reviews — the moat a new listing must climb

Avg price

Great$15.83

avg listing price — sweet spot $15–$100

Competition

Good42%

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

Returns

Good2.3%

return rate — above 5% kills the launch gate

Price range

Good$5.89–$30.77

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

Conversion

Okay2.8%

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

Growth

Okay+1.7%

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

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Market size

Bad$86K

$86K/yr · 194K searches

According to Flapen's Amazon United States niche tracking, four ever a princess birthday is a $86K/yr Amazon United States market (194K searches/yr). The top 5 brands hold 42% of demand. Demand peaks in Jan. Verdict: Worth a look — 52/100.

Data updated Jul 23, 2026 · scored weekly · How we score niches

four ever a princess birthday market data

Units sold / yr
5K–6K
avg 0–100/product
Revenue / yr
$79K–$95K
units × avg price
Conversion rate
2.8%
Avg BSR
#2,803
Page quality
0%
Prime
100%
Sponsored
95%
Out of stock
6.3%
Avg brand age
22 months
Avg seller age
176 days

Competition & brand share

The top 5 products take 42% of clicks — established leaders, but buyers still shop beyond them.

Brands

34 falling

Sellers

53

Top-5 brand share

42%

Top 20: 87%

Top-5 click share

42%

Top 20: 86%

Open market

52%

  • Monnberry11%
  • cocomigo10%
  • Cextoga10%
  • Xynic6%
  • CasaPopz6%
  • AETGDDS6%

Demand & seasonality

Weekly Amazon search volume, last 58 weeks — +1.7% search growth over the last 90 days.
5K3KPrime Day '25Spike '26JunJulAugSepOctNovDecJanFebMarAprMayJunJul

Peak months: Jan · busiest ÷ quietest = 2.0×

Top four ever a princess birthday search terms

  • four ever a princess birthday decorations96K/yr
  • fourever a princess birthday decorations girl35K/yr
  • 4 ever a princess birthday party decorations30K/yr
  • four ever a princess17K/yr
  • princess 4th birthday party decorations7K/yr
  • forever a princess party decoration5K/yr
  • four ever a princess birthday3K/yr
All search terms

Top four ever a princess birthday 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%$3K6%$5K9%$8K12%$10K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

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

What buyers say about four ever a princess birthday

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

What buyers love

Quality-Overall22%

“super solid quality”

Value For Money12%

“Excellent value”

Color10%

“Vibrant colors”

Advertised Vs Actual Product7%

“Exactly as described”

Design-Overall7%

“sophisticated touch to the design”

Size-Overall6%

“Great size”

Assembly/Installation5%

“The setup was incredibly straightforward”

Durability4%

“didnt break”

Ease Of Use4%

“it is very easy to use”

Gifting Purpose4%

“What a beautiful birthday decoration package”

What buyers complain about

Quality-Overall12%

“While they're not the best quality party supplies you'll ever find”

Assembly/Installation6%

“Setup took a bit of time”

Size-Overall6%

“Muy pequeño”

Color6%

“Color was a little off than in the picture”

Advertised Vs Actual Product3%

“Definitely not what I thought it was going to be”

Defective Material/Parts3%

“Broken”

Functionality-Overall3%

“Blow it up and tie it down on all corners otherwise, it's useless”

Mechanism Issues3%

“The 4 doesnt start up right”

Ease Of Cleaning3%

“Like dirty”

Inflation/Deflation3%

“The balloons deflated within an hour of blowing up”

Top return reasons

Size-Overall32%
Value For Money19%
Quality-Overall8%
Color7%
Advertised Vs Actual Product6%
Defective Material/Parts4%
Strength3%
Assembly/Installation2%
Product Condition2%
Material Quality2%

Common questions

Is four ever a princess birthday profitable to sell on Amazon United States?
The niche generates $86K/yr across 37 tracked products. 4 of 15 products launched in the last 360 days are still selling. 90-day search growth is +1.7%. Flapen's verdict: Worth a look (52/100).
How competitive is the four ever a princess birthday niche?
34 brands and 53 sellers compete. The top 5 products take 42% of clicks and top 5 brands hold 42% of demand.
What do buyers complain about in four ever a princess birthday?
Top complaints mined from reviews: Quality-Overall, Assembly/Installation, Size-Overall. The return rate is 2.3%.
When does demand for four ever a princess birthday peak?
Demand peaks in Jan; the busiest month runs 2.0× the quietest.
What does it cost to enter the four ever a princess birthday niche?
Listings span $5.89–$30.77; the average listing price is $15.83 (sweet spot $15–$100). The average incumbent carries 175 reviews — the moat a new listing must climb.