Is s23 ultra waterproof case profitable to sell on Amazon United States?

The niche generates $31K/yr across 23 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +0.2%. Flapen's verdict: Skip it (44/100).

How competitive is the s23 ultra waterproof case niche?

17 brands and 27 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 80% of demand.

What do buyers complain about in s23 ultra waterproof case?

Top complaints mined from reviews: Quality-Overall, Durability, Charging. The return rate is 2.8%.

When does demand for s23 ultra waterproof case peak?

Demand peaks in Jul–Aug; the busiest month runs 2.7× the quietest.

What does it cost to enter the s23 ultra waterproof case niche?

Listings span $10.26–$30.82; the average listing price is $22.59 (sweet spot $15–$100). The average incumbent carries 1,963 reviews — the moat a new listing must climb.

s23 ultra waterproof case

Skip it

A small market ($31K/yr) — this niche doesn't clear our bar today.

Avg price

Great$22.59

avg listing price — sweet spot $15–$100

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Price range

Great$10.26–$30.82

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

Returns

Good2.8%

return rate — above 5% kills the launch gate

Review moat

Okay1,962.91

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay80%

top-5 brand share — brands hold most of the demand

Competition

Okay60%

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

Conversion

Okay3.1%

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

Growth

Okay+0.2%

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

Market size

Bad$31K

$31K/yr · 44K searches

According to Flapen's Amazon United States niche tracking, s23 ultra waterproof case is a $31K/yr Amazon United States market (44K searches/yr). The top 5 brands hold 80% of demand. Demand peaks in Jul–Aug. Verdict: Skip it — 44/100.

Data updated Jul 8, 2026 · scored weekly · How we score niches

s23 ultra waterproof case market data

Units sold / yr: 2K–2K; avg 0–100/product
Revenue / yr: $34K–$45K; units × avg price
Conversion rate: 3.1%
Avg BSR: #3,409
Page quality: 0%
Prime: 100%
Sponsored: 65%
Out of stock: 24.0%
Avg brand age: 27 months
Avg seller age: 180 days

Competition & brand share

The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.

Brands

17 rising

Sellers

Top-5 brand share

80%

Top 20: 100%

Top-5 click share

60%

Top 20: 97%

Open market

17%

Haireca34%
Lanhiem23%
Ezanmull8%
Douiinc8%
Cozycase7%
MOZOTER3%
Open — no brand owns it (11 brands, 17%)

Demand & seasonality

Weekly Amazon search volume, last 103 weeks — +0.2% search growth over the last 90 days.

Peak months: Jul, Aug · busiest ÷ quietest = 2.7×

Open Trend

Top s23 ultra waterproof case search terms

s23 ultra waterproof case14K/yr -1.6%2.6% conv.
s23 ultra case waterproof8K/yr -0.6%2.5% conv.
samsung galaxy s23 ultra waterproof case7K/yr -3.2%2.7% conv.
galaxy s23 ultra waterproof case5K/yr +25.7%2.6% conv.
samsung s23 ultra waterproof case5K/yr -11.5%2.9% conv.
galaxy s23 ultra case waterproof5K/yr -2.1%5.1% conv.

All search terms

Top s23 ultra waterproof case 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 23 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Haireca for Samsung Galaxy S23 Ultra Waterproof Case [IP68 Water Proof] [Built-in Screen Protector] Magnetic Heavy Duty Military Grade Rugged Phone Case for S 23 Ultra 6.8 Teal

Haireca$22.754.1★485 rev

Lanhiem for Samsung S23 Ultra Phone Case IP68 Waterproof Dustproof Built-in Screen Protector Rugged Full Body Shockproof Protective Cover for Samsung Galaxy S23 Ultra 5G Black

Lanhiem$20.044.2★2,001 rev

Haireca for Samsung Galaxy S23 Ultra Waterproof Case with Magsafe Built-in Magnetic & Screen Protector IP68 Certified Full Body Shockproof for Water Sports Underwater Photography 6.8 Black

Haireca$24.874.2★203 rev

Ezanmull for Samsung Galaxy S23 Ultra Waterproof Case with Built-in Screen Protector Dustproof Shockproof Full Body Underwater Protective Phone Case Cover for Samsung Galaxy S23 Ultra 5G 6.8-Black

Ezanmull$20.414.3★4,630 rev

Douiinc for Samsung Galaxy S23 Ultra Case IP68 Waterproof Dustproof Case [Built-in Screen Protector] Full Body Heavy Duty Rugged Phone Cover for Galaxy S23 Ultra 6.8 Inch Black

Douiinc$19.944.5★158 rev

Newest

by launch date

Douiinc for Samsung Galaxy S23 Ultra Case IP68 Waterproof Dustproof Case [Built-in Screen Protector] Full Body Heavy Duty Rugged Phone Cover for Galaxy S23 Ultra 6.8 Inch Black

Douiinc$19.94158 rev

6mo ago

zapica Designed for Waterproof Samsung Galaxy S23 Ultra Case Built-in Camera & Screen Protector [IP68 Waterproof] [Military Drop Proof] Full Body Protective Cover for Galaxy S23 Ultra Black/Clear

zapica$19.4576 rev

8mo ago

xiwxi for Samsung Galaxy S23 Ultra Case Waterproof [IPX8 Underwater Case][Full Body Shockproof & Military Dropproof] Clear Sound Quality Built-in Screen Protector for Samsung S23 Ultra 6.8 inch-Black

xiwxi$25.73708 rev

9mo ago

Lanhiem Magnetic for Samsung Galaxy S23 Ultra Case IP68 Waterproof Dustproof Built-in Screen Protector Rugged Full Body Shockproof Cover for Galaxy S23 Ultra 5G 6.8 Inch Black/Clear

Lanhiem$24.212,001 rev

1y ago

SPIDERCASE for Samsung Galaxy S23 Ultra Case Waterproof Built-in Screen Protector[IP68 Underwater][12FT Military Grade Shockproof] Full Body Protection Phone Case 6.8 Black/Clear

SPIDERCASE$18.25301 rev

1y ago

What buyers say about s23 ultra waterproof case

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

What buyers love

Size-Overall15%

“Fits my phone perfectly”

Drop/Impact Protection13%

“the phone is protected”

Quality-Overall12%

“This case is very well made”

Value For Money9%

“Worth the money”

Durability8%

“Durable”

Water Resistance7%

“Waterproof”

Advertised Vs Actual Product5%

“As advertised”

Strength4%

“Good sturdy case”

Security2%

“Over, it's pretty decent in doing the job of protecting the phone,”

Assembly/Installation2%

“Easy to install”

What buyers complain about

Quality-Overall10%

“The qualityof these cases are not what they used to be”

Durability9%

“the case broke”

Charging7%

“the cord falls out when charging”

Functionality-Overall6%

“Does not function well at all”

Water Resistance6%

“Not water proof”

Size-Overall5%

“waste my money on this product it cannot fit well i don't wanna force my phone too destroy it”

Touch/Button Controls4%

“the touch capability is really lacking”

Audio Quality4%

“Terrible Sound Quality”

Microphone3%

“Seal for microphone wasn't aligned properly”

Value For Money2%

“Not really worth it”

Top return reasons

Size-Overall41%

Compatibility-Overall8%

Functionality-Overall7%

Charging4%

Advertised Vs Actual Product4%

Defective Material/Parts4%

Product Condition3%

Touch Screen3%

Touch/Button Controls2%

Material Quality2%

Common questions

Is s23 ultra waterproof case profitable to sell on Amazon United States?: The niche generates $31K/yr across 23 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +0.2%. Flapen's verdict: Skip it (44/100).
How competitive is the s23 ultra waterproof case niche?: 17 brands and 27 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 80% of demand.
What do buyers complain about in s23 ultra waterproof case?: Top complaints mined from reviews: Quality-Overall, Durability, Charging. The return rate is 2.8%.
When does demand for s23 ultra waterproof case peak?: Demand peaks in Jul–Aug; the busiest month runs 2.7× the quietest.
What does it cost to enter the s23 ultra waterproof case niche?: Listings span $10.26–$30.82; the average listing price is $22.59 (sweet spot $15–$100). The average incumbent carries 1,963 reviews — the moat a new listing must climb.