under the sea backdrop
Worth a lookShows no brand lock-in (top 5 brands take 33% of clicks), but a small market ($45K/yr) keeps it on the watch list.
Brand share
Incredible33%top-5 brand share — no brand owns this niche
Competition
Great29%top-5 click share — an open shelf
Price range
Good$5.81–$34.70cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good835.35avg incumbent reviews — the moat a new listing must climb
Growth
Good+40.4%90-day search growth — must beat 0% to launch
Avg price
Good$12.45avg listing price — sweet spot $15–$100
Returns
Okay3.3%return rate — above 5% kills the launch gate
Conversion
Okay2.4%search→purchase rate — share of searches ending in a sale
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Market size
Bad$45K$45K/yr · 147K searches
According to Flapen's Amazon United States niche tracking, under the sea backdrop is a $45K/yr Amazon United States market (147K searches/yr). The top 5 brands hold 33% of demand. Demand peaks in May–Jun–Jul. Verdict: Worth a look — 53/100.
Data updated Jul 30, 2026 · scored weekly · How we score niches
under the sea backdrop market data
- Units sold / yr
- 4K–5K
- avg 0–100/product
- Revenue / yr
- $50K–$62K
- units × avg price
- Conversion rate
- 2.4%
- Avg BSR
- #4,181
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 4.5%
- Avg brand age
- 24 months
- Avg seller age
- 188 days
Competition & brand share
Clicks spread well past the top 5 (29% combined) — an open shelf where new products get seen.Brands
44 falling
Sellers
53
Top-5 brand share
33%
Top 20: 77%
Top-5 click share
29%
Top 20: 71%
Open market
62%
- Swepuck10%
- Mocsicka7%
- Dormirpilow6%
- BOMSI6%
- Yongqian5%
- BELECO5%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +40.4% search growth over the last 90 days.Peak months: May, Jun, Jul · busiest ÷ quietest = 3.9×
Top under the sea backdrop search terms
- under the sea backdrop57K/yr
- ocean backdrop49K/yr
- under the sea banner8K/yr
- underwater backdrop9K/yr
- sea backdrop7K/yr
- under the sea photo backdrop5K/yr
- ocean background4K/yr
- ocean photo backdrop4K/yr
- ocean backdrop for party5K/yr
Top under the sea backdrop 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 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Swepuck 7x5ft Under The Sea Photography Backdrop Ocean Background
Swepuck$10.814.7★141 rev
Under The Sea Backdrop 7x5FT Ocean Backdrop Ocean Underwater World Colorful Fish Coral Photography Background for Under The Sea Birthday Party Decorations
Dormirpilow$9.764.4★22 rev
Summer Hawaii Sea Beach Photography Backdrops Blue Sky Ocean Photo Booth Wedding Party Decoration Background Birthday Banner Studio Props Cake Table Decoration 5x3ft Vinyl
Yongqian$6.634.5★121 rev
Tinsel Foil Fringe Curtains Wavy Backdrop for Parties Sparkle Metallic Wavy Foil Fringe Backdrop Curtain for Party Decorations Photo Booth Props for Birthday Graduation Wedding
BOMSI$5.854.5★2,951 rev
CHAIYA Under The Sea Backdrop Ocean Little Mermaid Backdrop Background for Under The Sea Theme Baby Shower Photo Booth Banner Party Cake Table Decoration 7x5ft
CHAIYA$9.924.8★1,037 rev
Newest
by launch date
Sea World Backdrop 7x5ft No-Crease Underwater World Photography Background Vibrant Coral Reef Sea Turtle Theme for Adult Birthday Party Decorations & Home Wall Decor
Bafode$8.5310 rev
Fanfanwin 11 Pcs Under The Sea Party Decoration Kit Vbs 2026 Ocean Themed Party Decor Mermaid Birthday 8 Blue Foil Fringe Curtains 1 Pier Aisle Runner 2 Mesh Ocean Backdrop for Summer Classroom
Fanfanwin$30.002 rev
ZTHMOE 7x5ft Summer Beach Photography Backdrop Sea Ocean Waves Banner
ZTHMOE$10.8311 rev
Under The Sea Backdrop 7x5Ft Ocean Themed Kids Birthday Party Decorations
Duoduobuy$9.8418 rev
Under The Sea Backdrop 7x5FT Ocean Underwater Background with 32.8FT Ribbon Double-Stitched Photo Backdrop with 4 Brass Grommets for Baby Shower Birthday Party Decorations
PURYOUNY$10.9510 rev
Trending
90-day click momentumSea World Backdrop 7x5ft No-Crease Underwater World Photography Background Vibrant Coral Reef Sea Turtle Theme for Adult Birthday Party Decorations & Home Wall Decor
Bafode$8.534.2★
ZTHMOE 7x5ft Summer Beach Photography Backdrop Sea Ocean Waves Banner
ZTHMOE$10.834.1★
Under The Sea Backdrop 7x5FT Ocean Backdrop Ocean Underwater World Colorful Fish Coral Photography Background for Under The Sea Birthday Party Decorations
Dormirpilow$9.764.4★
Fanfanwin 11 Pcs Under The Sea Party Decoration Kit Vbs 2026 Ocean Themed Party Decor Mermaid Birthday 8 Blue Foil Fringe Curtains 1 Pier Aisle Runner 2 Mesh Ocean Backdrop for Summer Classroom
Fanfanwin$30.003.5★
Tinsel Foil Fringe Curtains Wavy Backdrop for Parties Sparkle Metallic Wavy Foil Fringe Backdrop Curtain for Party Decorations Photo Booth Props for Birthday Graduation Wedding
BOMSI$5.854.5★
What buyers say about under the sea backdrop
What buyers praise and complain about, mined from review topics.What buyers love
“Color is accurate”
“Product is great as expected no issues”
“Price was reasonable”
“Beautifully shining”
“as advertised”
“it is a great size”
“Easy to use”
“One thing I was especially impressed with is the adhesive”
“The quality is very durable”
“I found the construction to be sturdy”
What buyers complain about
“Rips Easily”
“Does not stick to wall”
“Cheap and looks good”
“Just very fragile”
“CHEMICAL SMELL”
“Thin material”
“I was not able to use it”
“The colors arent quite as bright in person as they appear in the listing photos”
“Not a strong material”
“I don't think it worth the price. $6.99”
Top return reasons
Common questions
- Is under the sea backdrop profitable to sell on Amazon United States?
- The niche generates $45K/yr across 49 tracked products. 0 of 15 products launched in the last 360 days are still selling. 90-day search growth is +40.4%. Flapen's verdict: Worth a look (53/100).
- How competitive is the under the sea backdrop niche?
- 44 brands and 53 sellers compete. The top 5 products take 29% of clicks and top 5 brands hold 33% of demand.
- What do buyers complain about in under the sea backdrop?
- Top complaints mined from reviews: Durability, Adhesion/Stickiness, Quality-Overall. The return rate is 3.3%.
- When does demand for under the sea backdrop peak?
- Demand peaks in May–Jun–Jul; the busiest month runs 3.9× the quietest.
- What does it cost to enter the under the sea backdrop niche?
- Listings span $5.81–$34.70; the average listing price is $12.45 (sweet spot $15–$100). The average incumbent carries 835 reviews — the moat a new listing must climb.