---
title: "S25 Ultra Waterproof Case — $101K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/cell-phones-accessories/s25-ultra-waterproof-case"
last_updated: "2026-08-09T12:56:53.303Z"
locale: en
meta:
description: "Niche score 42/100 · $101K/yr market · 127K searches/yr · $26.70 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 42/100 · $101K/yr market · 127K searches/yr · $26.70 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "S25 Ultra Waterproof Case — $101K/yr Amazon US Niche (2026) - Flapen"
---
# **s25 ultra waterproof case**
**Skip it**
Soft demand (-23.4% this quarter) — this niche doesn't clear our bar today.
Market size 25Growth 13Conversion 37Competition 36Returns 29Price range 93Avg price 95Brand share 57Review moat 25Quality gap 78
**Avg price**
**Incredible****$26.70**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$13.84–$59.29**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Good****71%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Okay****3.0%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Okay****63%**
top-5 click share — leaders hold, buyers still browse
**Returns**
**Okay****4.7%**
return rate — above 5% kills the launch gate
**Market size**
**Okay****$101K**
$101K/yr · 127K searches
**Review moat**
**Bad****4,169.9**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-23.4%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, s25 ultra waterproof case is a $101K/yr Amazon United States market (127K searches/yr). The top 5 brands hold 71% of demand. Demand peaks in Jul–Aug. Verdict: Skip it — 42/100.
Data updated Jul 8, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **s25 ultra waterproof case market data**
- **Units sold / yr**
- **3K–4K**
- avg 100–250/product
- **Revenue / yr**
- **$80K–$107K**
- units × avg price
- **Conversion rate**
- **3.0%**
- **Avg BSR**
- **#5,538**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **90%**
- **Out of stock**
- **9.0%**
- **Avg brand age**
- **19 months**
- **Avg seller age**
- **169 days**
## **Competition & brand share**
The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**14 **▼falling
**Sellers**
**36**
**Top-5 brand share**
**71%**
Top 20: 100%
**Top-5 click share**
**63%**
Top 20: 100%
**Open market**
**24%**
- Temdan28% - Haireca15% - ANTSHARE13% - Ghostek8% - Justcool7% - Cozycase5%
## **Demand & seasonality**
Weekly Amazon search volume, last 62 weeks — -23.4% search growth over the last 90 days.
5K4KSpike '25Prime Day '25Black Friday '25Spike '26 seasonMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Jul, Aug · busiest ÷ quietest = 2.8×
[**Open Trend **](https://flapen.com/research/us/cell-phones-accessories/s25-ultra-waterproof-case/trend)
## **Top s25 ultra waterproof case search terms**
- **s25 ultra waterproof case**30K/yr-7.3%2.6% conv. - **samsung galaxy s25 ultra waterproof case**23K/yr-37.0%1.9% conv. - **galaxy s25 ultra waterproof case**23K/yr-1.3%2.5% conv. - **s25 ultra case waterproof**14K/yr-30.8%3.0% conv. - **samsung s25 ultra waterproof case**8K/yr+2.8%3.9% conv. - **samsung galaxy s25 ultra case waterproof**14K/yr-50.3%2.0% conv. - **galaxy s25 ultra case waterproof**10K/yr-38.2%3.1% conv. - **waterproof s25 ultra case**6K/yr-35.0%1.7% conv. [**All search terms **](https://flapen.com/research/us/cell-phones-accessories/s25-ultra-waterproof-case/search-terms)
## **Top s25 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.
0%10%$10K20%$20K30%$30K40%$41K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 20 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Temdan Designed for Samsung Galaxy S25 Ultra Case Waterproof Built-in Lens & Screen Protector Military Grade Shockproof Dropproof IP68 Underwater Full Body Phone Case for Galaxy S25 Ultra 6.9-Black**Temdan**$20.20**4.5★34,202 rev](https://www.amazon.com/dp/B0DNMHBMJL) [2![Haireca for Samsung Galaxy S25 Ultra Waterproof Case [Fit for Magsafe] [IP68 Water Proof] [Built-in Screen Protector] Magnetic Heavy Duty Military Grade Rugged Phone Case for S 25 Ultra 6.9 Teal](https://m.media-amazon.com/images/I/41vOY4gRgFL.jpg)**Haireca for Samsung Galaxy S25 Ultra Waterproof Case \[Fit for Magsafe\] \[IP68 Water Proof\] \[Built-in Screen Protector\] Magnetic Heavy Duty Military Grade Rugged Phone Case for S 25 Ultra 6.9 Teal**Haireca**$22.66**4.3★509 rev](https://www.amazon.com/dp/B0F29DC33F) [3![ANTSHARE IP68 Waterproof Case for Samsung Galaxy S25 Ultra [2025] - MagSafe Compatible Built-in Screen/Lens Protector - Shockproof Full Body Protection for Swimming/Outdoor Black/Clear](https://m.media-amazon.com/images/I/41kCfPhgUQL.jpg)**ANTSHARE IP68 Waterproof Case for Samsung Galaxy S25 Ultra \[2025\] - MagSafe Compatible Built-in Screen/Lens Protector - Shockproof Full Body Protection for Swimming/Outdoor Black/Clear**ANTSHARE**$21.48**4.3★10,445 rev](https://www.amazon.com/dp/B0GSFKS8BY) [4![Justcool Designed for Samsung Galaxy S25 Ultra Case Waterproof Built-in [IP68 Underwater] Full Protection Heavy Duty Shockproof Anti-Scratched Phone Case Black](https://m.media-amazon.com/images/I/416FG8gmxDL.jpg)**Justcool Designed for Samsung Galaxy S25 Ultra Case Waterproof Built-in \[IP68 Underwater\] Full Protection Heavy Duty Shockproof Anti-Scratched Phone Case Black**Justcool**$13.84**4.3★16 rev](https://www.amazon.com/dp/B0FW3GBD66) [5**Cozycase for Samsung Galaxy S25 Ultra Waterproof Case - 360 Heavy Duty Full Body Protection/Shockproof/Dustproof/Double/Front and Back/IP68/S 25 Ultra Protective Case with Screen/Camera Protector Slim**Cozycase**$29.65**4.2★2,159 rev](https://www.amazon.com/dp/B0DN59DD8L)
**~~View all top sellers →~~**
### **Newest**
by launch date
[![ANTSHARE IP68 Waterproof Case for Samsung Galaxy S25 Ultra [2025] - MagSafe Compatible Built-in Screen/Lens Protector - Shockproof Full Body Protection for Swimming/Outdoor Black/Clear](https://m.media-amazon.com/images/I/41kCfPhgUQL.jpg)**ANTSHARE IP68 Waterproof Case for Samsung Galaxy S25 Ultra \[2025\] - MagSafe Compatible Built-in Screen/Lens Protector - Shockproof Full Body Protection for Swimming/Outdoor Black/Clear**ANTSHARE**$21.48**10,445 rev3mo ago](https://www.amazon.com/dp/B0GSFKS8BY) [![ANTSHARE IP68 Waterproof Case for Samsung Galaxy S25 Ultra [2025] - with Kickstand - MagSafe Compatible Built-in Screen/Lens Protector - Shockproof Full Body Protection for Swimming/Outdoor Black](https://m.media-amazon.com/images/I/51BF6Kt3tKL.jpg)**ANTSHARE IP68 Waterproof Case for Samsung Galaxy S25 Ultra \[2025\] - with Kickstand - MagSafe Compatible Built-in Screen/Lens Protector - Shockproof Full Body Protection for Swimming/Outdoor Black**ANTSHARE**$28.43**10,445 rev3mo ago](https://www.amazon.com/dp/B0GSFG7P7J) [![Tecival for Samsung Galaxy S25 Ultra Case Waterproof Built-in Screen & Camera Lens Protector[IP68 Underwater] [Military Grade Shockproof] Full Body Protection Phone Case Black/Clear](https://m.media-amazon.com/images/I/51-N1+wYeQL.jpg)**Tecival for Samsung Galaxy S25 Ultra Case Waterproof Built-in Screen & Camera Lens Protector\[IP68 Underwater\] \[Military Grade Shockproof\] Full Body Protection Phone Case Black/Clear**Tecival**$15.98**8 rev3mo ago](https://www.amazon.com/dp/B0GSD2QFDV) [![WIFORT for Samsung Galaxy S25 Ultra Waterproof Case Magnetic [Rugged Stainless Steel] [Fit for MagSafe] [Screen Protector & Lanyard] Heavy Duty Protection Water Proof Metal Phone Cover - 6.9 Black](https://m.media-amazon.com/images/I/514xzZ-yMtL.jpg)**WIFORT for Samsung Galaxy S25 Ultra Waterproof Case Magnetic \[Rugged Stainless Steel\] \[Fit for MagSafe\] \[Screen Protector & Lanyard\] Heavy Duty Protection Water Proof Metal Phone Cover - 6.9 Black**WIFORT**$29.94**81 rev7mo ago](https://www.amazon.com/dp/B0FH4PKW2Z) [![SPIDERCASE Upgraded for Samsung Galaxy S25 Ultra Case Waterproof Built-in Screen & Camera Lens Protector[IP68 Underwater] [Military Grade Shockproof] Full Body Protection Phone Case Black/Clear](https://m.media-amazon.com/images/I/51gz+JDAyRL.jpg)**SPIDERCASE Upgraded for Samsung Galaxy S25 Ultra Case Waterproof Built-in Screen & Camera Lens Protector\[IP68 Underwater\] \[Military Grade Shockproof\] Full Body Protection Phone Case Black/Clear**SPIDERCASE**$17.94**324 rev7mo ago](https://www.amazon.com/dp/B0G242ZYCL)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[![ANTSHARE IP68 Waterproof Case for Samsung Galaxy S25 Ultra [2025] - with Kickstand - MagSafe Compatible Built-in Screen/Lens Protector - Shockproof Full Body Protection for Swimming/Outdoor Black](https://m.media-amazon.com/images/I/51BF6Kt3tKL.jpg)**ANTSHARE IP68 Waterproof Case for Samsung Galaxy S25 Ultra \[2025\] - with Kickstand - MagSafe Compatible Built-in Screen/Lens Protector - Shockproof Full Body Protection for Swimming/Outdoor Black**ANTSHARE**$28.43**4.3★**▲ 399%**](https://www.amazon.com/dp/B0GSFG7P7J) [![ANTSHARE IP68 Waterproof Case for Samsung Galaxy S25 Ultra [2025] - MagSafe Compatible Built-in Screen/Lens Protector - Shockproof Full Body Protection for Swimming/Outdoor Black/Clear](https://m.media-amazon.com/images/I/41kCfPhgUQL.jpg)**ANTSHARE IP68 Waterproof Case for Samsung Galaxy S25 Ultra \[2025\] - MagSafe Compatible Built-in Screen/Lens Protector - Shockproof Full Body Protection for Swimming/Outdoor Black/Clear**ANTSHARE**$21.48**4.3★**▲ 397%**](https://www.amazon.com/dp/B0GSFKS8BY) [![Tecival for Samsung Galaxy S25 Ultra Case Waterproof Built-in Screen & Camera Lens Protector[IP68 Underwater] [Military Grade Shockproof] Full Body Protection Phone Case Black/Clear](https://m.media-amazon.com/images/I/51-N1+wYeQL.jpg)**Tecival for Samsung Galaxy S25 Ultra Case Waterproof Built-in Screen & Camera Lens Protector\[IP68 Underwater\] \[Military Grade Shockproof\] Full Body Protection Phone Case Black/Clear**Tecival**$15.98**4.0★**▲ 392%**](https://www.amazon.com/dp/B0GSD2QFDV) [![Justcool Designed for Samsung Galaxy S25 Ultra Case Waterproof Built-in [IP68 Underwater] Full Protection Heavy Duty Shockproof Anti-Scratched Phone Case Black](https://m.media-amazon.com/images/I/416FG8gmxDL.jpg)**Justcool Designed for Samsung Galaxy S25 Ultra Case Waterproof Built-in \[IP68 Underwater\] Full Protection Heavy Duty Shockproof Anti-Scratched Phone Case Black**Justcool**$13.84**4.3★**▲ 277%**](https://www.amazon.com/dp/B0FW3GBD66) [![Justcool for Samsung Galaxy S25 Ultra Case [Built-in Screen & Lens Protector] IP68 Underwater [12FT Military Shockproof] Full Body Sealed Heavy Duty Protective Phone Case 6.9 Black](https://m.media-amazon.com/images/I/51y7EbZjZrL.jpg)**Justcool for Samsung Galaxy S25 Ultra Case \[Built-in Screen & Lens Protector\] IP68 Underwater \[12FT Military Shockproof\] Full Body Sealed Heavy Duty Protective Phone Case 6.9 Black**Justcool**$16.70**4.8★**▲ 82%**](https://www.amazon.com/dp/B0FR8M8H1D)
**~~View all trending →~~**
## **What buyers say about s25 ultra waterproof case**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**13%
*“Fits Perfect”*
**Quality-Overall**13%
*“Good quality”*
**Water Resistance**10%
*“It is waterproof”*
**Drop/Impact Protection**9%
*“Protects phone”*
**Value For Money**9%
*“WORTH IT”*
**Strength**5%
*“Great strong case”*
**Advertised Vs Actual Product**5%
*“Just as advertised”*
**Ease Of Use**5%
*“Easy use”*
**Durability**4%
*“Durable”*
**Touch/Button Controls**2%
*“buttons all still work great”*
### **What buyers complain about **
**Water Resistance**10%
*“Horrible, not water proof”*
**Size-Overall**9%
*“it did not fit”*
**Functionality-Overall**8%
*“It doesn't work”*
**Quality-Overall**7%
*“Poor quality”*
**Touch/Button Controls**5%
*“the touch doesn't work”*
**Charging**4%
*“Does not work with wireless charging”*
**Audio Quality**4%
*“Don't expect good sound”*
**Image/Picture Clarity**3%
*“Pictures are not clear underwater”*
**Durability**3%
*“It lasted only 8 months”*
**Value For Money**2%
*“at too much cost of functions”*
### **Top return reasons **
**Size-Overall**37%
**Compatibility-Overall**9%
**Functionality-Overall**8%
**Advertised Vs Actual Product**5%
**Value For Money**4%
**Touch/Button Controls**3%
**Touch Screen**3%
**Defective Material/Parts**3%
**Product Condition**3%
**Water Resistance**2%
## **Common questions**
- **Is s25 ultra waterproof case profitable to sell on Amazon United States?**
- The niche generates $101K/yr across 20 tracked products. 1 of 7 products launched in the last 360 days are still selling. 90-day search growth is -23.4%. Flapen's verdict: Skip it (42/100).
- **How competitive is the s25 ultra waterproof case niche?**
- 14 brands and 36 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 71% of demand.
- **What do buyers complain about in s25 ultra waterproof case?**
- Top complaints mined from reviews: Water Resistance, Size-Overall, Functionality-Overall. The return rate is 4.7%.
- **When does demand for s25 ultra waterproof case peak?**
- Demand peaks in Jul–Aug; the busiest month runs 2.8× the quietest.
- **What does it cost to enter the s25 ultra waterproof case niche?**
- Listings span $13.84–$59.29; the average listing price is $26.70 (sweet spot $15–$100). The average incumbent carries 4,170 reviews — the moat a new listing must climb.
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