---
title: "Rumi Sword — $583K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/rumi-sword"
last_updated: "2026-08-11T03:47:50.844Z"
locale: en
meta:
description: "Niche score 53/100 · $583K/yr market · 872K searches/yr · $27.85 avg price. Soft demand (-30.4% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 53/100 · $583K/yr market · 872K searches/yr · $27.85 avg price. Soft demand (-30.4% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Rumi Sword — $583K/yr Amazon US Niche (2026) - Flapen"
---
# **rumi sword**
**Worth a look**
Shows beatable incumbent ratings (3.6★), but soft demand (-30.4% this quarter) keeps it on the watch list.
Market size 63Growth 10Conversion 30Competition 41Returns 41Price range 87Avg price 95Brand share 52Review moat 98Quality gap 99
**Quality gap**
**Incredible****3.6★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Incredible****45.24**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Incredible****$27.85**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$11.67–$43.79**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Good****$583K**
$583K/yr · 872K searches
**Brand share**
**Good****74%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****60%**
top-5 click share — leaders hold, buyers still browse
**Returns**
**Okay****3.7%**
return rate — above 5% kills the launch gate
**Conversion**
**Okay****2.4%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-30.4%**
90-day search growth — must beat 0% to launch
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** Quality Gap**](https://flapen.com/research/niches?market=us&signal=quality_gap "Avg rating < 4.0")
According to Flapen's Amazon United States niche tracking, rumi sword is a $583K/yr Amazon United States market (872K searches/yr). The top 5 brands hold 74% of demand. Verdict: Worth a look — 53/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **rumi sword market data**
- **Units sold / yr**
- **15K–20K**
- avg 500–750/product
- **Revenue / yr**
- **$418K–$557K**
- units × avg price
- **Conversion rate**
- **2.4%**
- **Avg BSR**
- **#432**
- **Page quality**
- **0%**
- **Prime**
- **90%**
- **Sponsored**
- **76%**
- **Out of stock**
- **18.6%**
- **Avg brand age**
- **25 months**
- **Avg seller age**
- **166 days**
## **Competition & brand share**
The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**14 **▲rising
**Sellers**
**19**
**Top-5 brand share**
**74%**
Top 20: 100%
**Top-5 click share**
**60%**
Top 20: 99%
**Open market**
**20%**
- Honcloud20% - VABAO18% - Rose's Secret15% - PowerGale14% - Generic6% - CoserWorld6%
## **Demand**
Weekly Amazon search volume, last 44 weeks — -30.4% search growth over the last 90 days.
70K50KSpike '25Sep '25Oct '25Dec '25Feb '26Mar '26May '26
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/rumi-sword/trend)
## **Top rumi sword search terms**
- **rumi sword**382K/yr-35.3%3.0% conv. - **rumi sword kpop demon hunters**167K/yr-27.1%1.9% conv. - **kpop demon hunters sword**77K/yr-32.2%1.9% conv. - **kpop sword**22K/yr-15.2%2.8% conv. - **k pop demon hunters sword**27K/yr-25.8%1.6% conv. - **kpop demon hunter sword**25K/yr-24.9%2.8% conv. - **huntrix sword**13K/yr-2.3%2.4% conv. - **demon hunter sword**16K/yr-33.8%3.7% conv. - **kpop demon hunters rumi sword**21K/yr-35.8%1.5% conv. - **k pop sword**9K/yr-24.9%4.2% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/rumi-sword/search-terms)
## **Top rumi sword 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%5%$29K10%$58K15%$87K20%$117K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 21 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Purple Sword Cosplay Costume Prop Dagger Sword Anime Props Purple Sword for Halloween & Collectible Bracelet**VABAO**$24.20**2.0★155 rev](https://www.amazon.com/dp/B0FQD59BPY) [2**Costume Weapons Sword for Hunter Cosplay: Anime Merch - Outfit Accessories Prop 32 Long Gold**Rose's Secret**$35.98**4.0★27 rev](https://www.amazon.com/dp/B0GDDY9YL1) [3**32 Inches One-piece Flexible Sturdy Sword Prop Accessories for Costume Cosplay and Halloween(Blue-Pink Gradient)**Honcloud**$38.04**4.6★20 rev](https://www.amazon.com/dp/B0GC5JF7C7) [4**PowerGale 41 Anime Cosplay Sword with Sheath Non-3D Printed & Back-Carry Collectible Prop for Costume&Display**PowerGale**$38.41**4.6★58 rev](https://www.amazon.com/dp/B0FY537C78) [5**Honcloud 32 Inches One-Piece Flexible & Sturdy Sword Prop Costume Accessory for Cosplay & Halloween**Honcloud**$37.42**4.6★20 rev](https://www.amazon.com/dp/B0GC67NSHY)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Cosplay Anime Weapons Sword Halloween Costume Accessory Gift for Anime Lovers (Blue)**Generic**$15.28**5 rev3mo ago](https://www.amazon.com/dp/B0GSVML1RR) [**Cosplay Anime Weapons Sword Halloween Costume Accessory Gift for Anime Lovers (Purple)**Generic**$15.17**5 rev3mo ago](https://www.amazon.com/dp/B0GSVJPVZW) [**Fasmium 31.5 Sword Weapons for Hunters Costume - Anime Outfit Accessories Movie Cosplay Prop K-pop Gifts for Adult & Kids**Fasmium**$35.29**134 rev4mo ago](https://www.amazon.com/dp/B0GPWTDPKY) [**35 Retractable Gravity Sword Prop with Telescopic Blade & Throwing Dagger 3D Printed Folding Katana Toy for Cosplay Halloween Costume Accessories Fantasy Weapon Collectible for Adults Blue**Generic**$16.35**1 rev4mo ago](https://www.amazon.com/dp/B0GMY2JYBL) [**otaku gear 26 Foam Mini Demon Killer Sword Lightweight Prop for Cosplay Display & Collection**otaku gear**$28.64**34 rev5mo ago](https://www.amazon.com/dp/B0GMS1NR7J)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**35 Retractable Gravity Sword Prop with Telescopic Blade & Throwing Dagger 3D Printed Folding Katana Toy for Cosplay Halloween Costume Accessories Fantasy Weapon Collectible for Adults Blue**Generic**$16.35**1.0★**▲ 220%**](https://www.amazon.com/dp/B0GMY2JYBL) [**Fasmium 31.5 Sword Weapons for Hunters Costume - Anime Outfit Accessories Movie Cosplay Prop K-pop Gifts for Adult & Kids**Fasmium**$35.29**4.3★**▲ 220%**](https://www.amazon.com/dp/B0GPWTDPKY) [**Cosplay Anime Weapons Sword Halloween Costume Accessory Gift for Anime Lovers (Blue)**Generic**$15.28**1.0★**▲ 217%**](https://www.amazon.com/dp/B0GSVML1RR) [**Cosplay Anime Weapons Sword Halloween Costume Accessory Gift for Anime Lovers (Purple)**Generic**$15.17**1.0★**▲ 215%**](https://www.amazon.com/dp/B0GSVJPVZW) [**otaku gear 26 Foam Mini Demon Killer Sword Lightweight Prop for Cosplay Display & Collection**otaku gear**$28.64**4.5★**▲ 209%**](https://www.amazon.com/dp/B0GMS1NR7J)
**~~View all trending →~~**
## **What buyers say about rumi sword**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**15%
*“Fantastic Quality”*
**Durability**8%
*“The foam is quite durable”*
**Weight Light**8%
*“It feels very well balanced and light”*
**Fun/Entertainment Experience**8%
*“Fun and colorful”*
**Value For Money**6%
*“Well worth it”*
**Gifting Purpose**6%
*“Best gift ever”*
**Design-Overall**5%
*“it is a fantastically designed piece”*
**Color**5%
*“Colors are nice”*
**Size-Overall**4%
*“it certainly fits the style”*
**Strength**3%
*“the handle feels super sturdy in the hand”*
### **What buyers complain about **
**Durability**31%
*“Broke first use”*
**Quality-Overall**20%
*“While not premium quality”*
**Value For Money**5%
*“Not worth the money”*
**Strength**5%
*“is fragile”*
**Print Quality**4%
*“its a crappy 3-d print”*
**Material Quality**3%
*“The material is thicker”*
**Color**2%
*“the white is a bit too bright”*
**Size-Overall**2%
*“also a little smaller”*
**Design-Overall**1%
*“Horribly constructed”*
**Hard Feel**1%
*“it's mostly hard”*
### **Top return reasons **
**Defective Material/Parts**31%
**Durability**17%
**Size-Overall**11%
**Handle Quality**7%
**Quality-Overall**5%
**Material Quality**4%
**Functionality-Overall**4%
**Advertised Vs Actual Product**3%
**Charging**2%
**Value For Money**2%
## **Common questions**
- **Is rumi sword profitable to sell on Amazon United States?**
- The niche generates $583K/yr across 21 tracked products. 5 of 20 products launched in the last 360 days are still selling. 90-day search growth is -30.4%. Flapen's verdict: Worth a look (53/100).
- **How competitive is the rumi sword niche?**
- 14 brands and 19 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 74% of demand.
- **What do buyers complain about in rumi sword?**
- Top complaints mined from reviews: Durability, Quality-Overall, Value For Money. The return rate is 3.7%.
- **What does it cost to enter the rumi sword niche?**
- Listings span $11.67–$43.79; the average listing price is $27.85 (sweet spot $15–$100). The average incumbent carries 45 reviews — the moat a new listing must climb.
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