---
title: "Birthday King — $183K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/home-kitchen/birthday-king"
last_updated: "2026-08-09T13:06:49.538Z"
locale: en
meta:
description: "Niche score 39/100 · $183K/yr market · 246K searches/yr · $11.49 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 39/100 · $183K/yr market · 246K searches/yr · $11.49 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Birthday King — $183K/yr Amazon US Niche (2026) - Flapen"
---
# **birthday king**
**Skip it**
A concentrated shelf (top 5 take 77% of clicks) — this niche doesn't clear our bar today.
Market size 37Growth 24Conversion 71Competition 19Returns 39Price range 37Avg price 46Brand share 39Review moat 84Quality gap 35
**Review moat**
**Great****324**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Good****6.5%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Okay****$11.49**
avg listing price — sweet spot $15–$100
**Brand share**
**Okay****82%**
top-5 brand share — brands hold most of the demand
**Returns**
**Okay****3.9%**
return rate — above 5% kills the launch gate
**Market size**
**Okay****$183K**
$183K/yr · 246K searches
**Price range**
**Okay****$4.97–$20.85**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-2.8%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****77%**
top-5 click share — a locked-up shelf
According to Flapen's Amazon United States niche tracking, birthday king is a $183K/yr Amazon United States market (246K searches/yr). The top 5 brands hold 82% of demand. Verdict: Skip it — 39/100.
Data updated Jul 23, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **birthday king market data**
- **Units sold / yr**
- **15K–20K**
- avg 250–500/product
- **Revenue / yr**
- **$172K–$230K**
- units × avg price
- **Conversion rate**
- **6.5%**
- **Avg BSR**
- **#11,867**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **92%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **29 months**
- **Avg seller age**
- **183 days**
## **Competition & brand share**
The top 5 products capture 77% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**11 **▼falling
**Sellers**
**16**
**Top-5 brand share**
**82%**
Top 20: 100%
**Top-5 click share**
**77%**
Top 20: 100%
**Open market**
**14%**
- Docooniver41% - Luwigs11% - Asija10% - JITINX10% - NA9% - TITIKADI4% - Open — no brand owns it (5 brands, 14%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -2.8% search growth over the last 90 days.
5K3KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/us/home-kitchen/birthday-king/trend)
## **Top birthday king search terms**
- **birthday sash for men**52K/yr+6.4%4.0% conv. - **birthday king**40K/yr-2.8%3.1% conv. - **birthday crown for men**38K/yr-6.0%2.1% conv. - **birthday king crown**20K/yr-6.7%2.8% conv. - **birthday king sash**15K/yr-5.4%5.6% conv. - **birthday accessories for men**13K/yr+5.9%0.5% conv. - **birthday crown men**9K/yr+1.2%2.6% conv. - **king birthday decorations**10K/yr-2.6%0.5% conv. - **birthday sash men**8K/yr+0.9%3.3% conv. - **mens birthday sash**8K/yr-8.1%3.8% conv. [**All search terms **](https://flapen.com/research/us/home-kitchen/birthday-king/search-terms)
## **Top birthday king 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%15%$27K30%$55K45%$82K60%$110K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 13 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Docooniver 2 Pack Its my Birthday Sash for Women Men Adult Girls Kids Happy Birthday Decorations Accessories Gifts Black and White Sashes with Gold and Rose Gold Lettering**Docooniver**$6.22**4.7★1,469 rev](https://www.amazon.com/dp/B0B7XN2FRR) [2**Asija Birthday Gifts for Men Birthday Decorations for Men Party Decor Supplies including King Crown & Sash & Greeting Card**Asija**$15.80**4.6★354 rev](https://www.amazon.com/dp/B0DNK3TVL6) [3**NA King Crown and Birthday Sash Prom Decoration Gifts for Men (Gold-1)**NA**$15.43**4.8★1,300 rev](https://www.amazon.com/dp/B09XLBQGJN) [4**Luwigs Birthday King Sash for Men or Boy Birthday Party Decoration Supplies Gold Foil Letter and Black Satin Sash Birthday Party Favors (Black)**Luwigs**$6.00**4.6★165 rev](https://www.amazon.com/dp/B0CM6BB9HS) [5**JITINX King Crown and Birthday Sash King Crown for Men Gold Mens Tiara Prince Diadem Royal Medieval Cosplay Birthday Prom Halloween Hair Accessories (Antique Gold Black Crown)**JITINX**$16.75**4.6★343 rev](https://www.amazon.com/dp/B0FK9ZGRCF)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**JITINX King Crown & Birthday Sash for Birthday Prom Party Prom Decoration Gifts for Men Costume Wedding Halloween Fathers Day Gift for Men Father Husband Friend (Gold Black)**JITINX**$12.80**49 rev8mo ago](https://www.amazon.com/dp/B0G2BDW6K4) [**Edussy 3 pcs Black Birthday Decorations for Men Set Happy Birthdays Sunglasses Gothic Birthdays King Crown and Sash for Birthday Gifts for Men and Him**Edussy**$20.85**34 rev11mo ago](https://www.amazon.com/dp/B0FLD32W85) [**Its A Real Kings Birthday Shirt for Men Birthday Gift for Men Husband Boyfriend Brother Graphic Tee White**CMNOPZ**$15.46**3 rev11mo ago](https://www.amazon.com/dp/B0FKT5594Q) [**JITINX King Crown and Birthday Sash King Crown for Men Gold Mens Tiara Prince Diadem Royal Medieval Cosplay Birthday Prom Halloween Hair Accessories (Antique Gold Black Crown)**JITINX**$16.75**343 rev11mo ago](https://www.amazon.com/dp/B0FK9ZGRCF) [**Birthday King Sash Gold Foil Letter and Black Satin Birthday Sash for Men Birthdays Boy Sashes Funny Birthdays Party Decorations for Men & Boys Party Favors Supplies (Black)**Piriuuo**$4.97**12 rev1y ago](https://www.amazon.com/dp/B0FDPXYHQ7)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Its A Real Kings Birthday Shirt for Men Birthday Gift for Men Husband Boyfriend Brother Graphic Tee White**CMNOPZ**$15.46**3.6★**▲ 155%**](https://www.amazon.com/dp/B0FKT5594Q) [**Edussy 3 pcs Black Birthday Decorations for Men Set Happy Birthdays Sunglasses Gothic Birthdays King Crown and Sash for Birthday Gifts for Men and Him**Edussy**$20.85**4.7★**▲ 101%**](https://www.amazon.com/dp/B0FLD32W85) [**JITINX King Crown & Birthday Sash for Birthday Prom Party Prom Decoration Gifts for Men Costume Wedding Halloween Fathers Day Gift for Men Father Husband Friend (Gold Black)**JITINX**$12.80**4.2★**▲ 80%**](https://www.amazon.com/dp/B0G2BDW6K4) [**Docooniver 2 Pack Its my Birthday Sash for Women Men Adult Girls Kids Happy Birthday Decorations Accessories Gifts Black and White Sashes with Gold and Rose Gold Lettering**Docooniver**$6.22**4.7★**▲ 65%**](https://www.amazon.com/dp/B0B7XN2FRR) [**GLITZJOY Birthday Sash BIRTHDAY BADDIE SASH Black Glitter Sash with Gold Foil Sparkly Satin Birthday Sash for Women Girls Men Decorations for Party Supplies**GLITZJOY**$6.96**4.7★**▲ 65%**](https://www.amazon.com/dp/B0F8VRGHCV)
**~~View all trending →~~**
## **What buyers say about birthday king**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**28%
*“Good quality”*
**Value For Money**18%
*“Great value”*
**Size-Overall**13%
*“It fit nice, looked beautiful”*
**Advertised Vs Actual Product**8%
*“Did the job”*
**Strength**3%
*“Heavy duty crown”*
**Gifting Purpose**3%
*“Great gift”*
**Shape/Style**3%
*“Very elegant”*
**Weight Light**3%
*“It wasn't too heavy the weight was just right very nice”*
**Material Quality**2%
*“Keepsake material”*
**Adjustability/Rotatability/Reclining**2%
*“It is adjustable”*
### **What buyers complain about **
**Weight Heavy**25%
*“Heavier than I thought it would be”*
**Durability**20%
*“the rest just gave up on life”*
**Size-Overall**9%
*“It wasn't a good fit for the birthday boy's head”*
**Engraving/Paint/Sublimation**6%
*“The lettering fell off after am hour of normal weat8”*
**Quality-Overall**5%
*“the quality wasnt the best for the lettering”*
**Adhesion/Stickiness**3%
*“letters fell off as soon as i started wearing it. theyre plastic and glued on.”*
**Comfort-Overall**2%
*“He said it was uncomfortable”*
**Grip**2%
*“slides around and off the shoulder”*
**Material Quality**2%
*“Material is like ribbon”*
**Value For Money**1%
*“expensive”*
### **Top return reasons **
**Size-Overall**53%
**Weight Heavy**9%
**Advertised Vs Actual Product**9%
**Value For Money**6%
**Quality-Overall**6%
**Functionality-Overall**4%
**Color**3%
**Comfort-Overall**2%
**Defective Material/Parts**2%
**Material Quality**1%
## **Common questions**
- **Is birthday king profitable to sell on Amazon United States?**
- The niche generates $183K/yr across 13 tracked products. 2 of 4 products launched in the last 360 days are still selling. 90-day search growth is -2.8%. Flapen's verdict: Skip it (39/100).
- **How competitive is the birthday king niche?**
- 11 brands and 16 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 82% of demand.
- **What do buyers complain about in birthday king?**
- Top complaints mined from reviews: Weight Heavy, Durability, Size-Overall. The return rate is 3.9%.
- **When does demand for birthday king peak?**
- Demand is steady year-round — the busiest month runs 1.7× the quietest.
- **What does it cost to enter the birthday king niche?**
- Listings span $4.97–$20.85; the average listing price is $11.49 (sweet spot $15–$100). The average incumbent carries 324 reviews — the moat a new listing must climb.
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