rengoku sword
Skip itA small market ($52K/yr) — this niche doesn't clear our bar today.
Avg price
Incredible$39.63avg listing price — sweet spot $15–$100
Price range
Great$10.03–$98.62cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Good2.6%return rate — above 5% kills the launch gate
Review moat
Good1,457.43avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Brand share
Okay81%top-5 brand share — brands hold most of the demand
Competition
Okay66%top-5 click share — leaders hold, buyers still browse
Conversion
Bad1.6%search→purchase rate — share of searches ending in a sale
Growth
Bad-9.2%90-day search growth — must beat 0% to launch
Market size
Bad$52K$52K/yr · 80K searches
According to Flapen's Amazon United States niche tracking, rengoku sword is a $52K/yr Amazon United States market (80K searches/yr). The top 5 brands hold 81% of demand. Demand peaks in Sep–Oct–Nov–Dec. Verdict: Skip it — 38/100.
Data updated Jul 10, 2026 · scored weekly · How we score niches
rengoku sword market data
- Units sold / yr
- 2K–3K
- avg 100–250/product
- Revenue / yr
- $79K–$99K
- units × avg price
- Conversion rate
- 1.6%
- Avg BSR
- #195
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 86%
- Out of stock
- 7.3%
- Avg brand age
- 42 months
- Avg seller age
- 203 days
Competition & brand share
The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.Brands
10 falling
Sellers
12
Top-5 brand share
81%
Top 20: 100%
Top-5 click share
66%
Top 20: 100%
Open market
19%
- PZOEWUESR18%
- Zisu17%
- RG RENGENG15%
- Sword Valley15%
- Sword fort8%
- SV8%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -9.2% search growth over the last 90 days.Peak months: Sep, Oct, Nov, Dec · busiest ÷ quietest = 6.1×
Top rengoku sword search terms
- rengoku sword68K/yr
- rengoku katana6K/yr
- demon slayer rengoku sword3K/yr
- rengoku sword metal3K/yr
Top rengoku 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.
All 14 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Rengoku Sword. Demon Slayer Sword -41 inchfor Role-Playing and Collection.Anime Original Texture
PZOEWUESR$30.914.5★1,669 rev
RENGENG Light Up Rengoku Sword 40 Inches Rechargeable Plastic Anime Replica with Belt & Stand Original Texture Anime Sword
RG RENGENG$47.464.6★948 rev
Sword Valley Rengoku Kyoujurou Sword - Slayers Katana40.9 LengthAnime Original Texture Carbon Steel Blade Carving SymbolNon-Slip Gripfor Cosplay & Display
Sword Valley$42.124.5★1,793 rev
Zisu Anime Rengoku Sword About 41 inches Hashira Pillars & Protagonist Sword Anime Original Texture (Red-Kyoujurou)
Zisu$33.974.6★6,362 rev
Sword fort Handmade Katana Anime Cosplay Sword Stainless Steel Demon Sword Real Metal- Rengoku Kyoujurou
Sword fort$45.294.6★2,790 rev
Newest
by launch date
Zisu LED Glowing Anime Cosplay Sword Rengoku Sword - 40 Inch Rechargeable Light Up Sword with Stand & Belt
Zisu$45.4582 rev
RENGENG Light Up Rengoku Sword 40 Inches Rechargeable Plastic Anime Replica with Belt & Stand Original Texture Anime Sword
RG RENGENG$47.46948 rev
Zisu Rengoku Sword - 23.6 Short Katana Replica for Kids - Complete with Belt Stand and True-to-Show Design - Rengoku Sword Ideal for Display
Zisu$20.04225 rev
Rengoku Cosplay Sword Foam Props for Kids - 31 inch
PZOEWUESR$29.43840 rev
Full Tang Katana Rengoku Sword 41 Inches Samurai Sword Cosplay Anime Sword
wuton$98.62127 rev
Trending
90-day click momentum
Anime Rengoku Hanafuda Earrings - Accessories for Kimetsu No Yaiba Cosplay
SONGCHANGJEWELRY$10.034.6★
Sword Valley Rengoku Kyoujurou Sword - Slayers Katana40.9 LengthAnime Original Texture Carbon Steel Blade Carving SymbolNon-Slip Gripfor Cosplay & Display
Sword Valley$42.124.5★
Demon Slayer Sword for Cosplay with Belt Holder Stand 41 inches (Rengoku Kyoujurou)
AN SWALLOW$29.944.5★
Zisu Anime Rengoku Sword About 41 inches Hashira Pillars & Protagonist Sword Anime Original Texture (Red-Kyoujurou)
Zisu$33.974.6★
Rengoku Sword. Demon Slayer Sword -41 inchfor Role-Playing and Collection.Anime Original Texture
PZOEWUESR$30.914.5★
What buyers say about rengoku sword
What buyers praise and complain about, mined from review topics.What buyers love
“the sheath is quality”
“Worth the money”
What buyers complain about
“My son was so excited just to get an item that was broken”
“Only buy if you what a piece of broken wood”
“Does not last”
Top return reasons
Common questions
- Is rengoku sword profitable to sell on Amazon United States?
- The niche generates $52K/yr across 14 tracked products. 90-day search growth is -9.2%. Flapen's verdict: Skip it (38/100).
- How competitive is the rengoku sword niche?
- 10 brands and 12 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 81% of demand.
- What do buyers complain about in rengoku sword?
- Top complaints mined from reviews: Defective Material/Parts, Wood Quality, Durability. The return rate is 2.6%.
- When does demand for rengoku sword peak?
- Demand peaks in Sep–Oct–Nov–Dec; the busiest month runs 6.1× the quietest.
- What does it cost to enter the rengoku sword niche?
- Listings span $10.03–$98.62; the average listing price is $39.63 (sweet spot $15–$100). The average incumbent carries 1,457 reviews — the moat a new listing must climb.