---
title: "Iphone 16 Plus Waterproof Case — $55K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/cell-phones-accessories/iphone-16-plus-waterproof-case"
last_updated: "2026-08-10T00:37:18.016Z"
locale: en
meta:
description: "Niche score 44/100 · $55K/yr market · 81K searches/yr · $25.32 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 44/100 · $55K/yr market · 81K searches/yr · $25.32 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Iphone 16 Plus Waterproof Case — $55K/yr Amazon US Niche (2026) - Flapen"
---
# **iphone 16 plus waterproof case**
**Skip it**
A small market ($55K/yr) — this niche doesn't clear our bar today.
Market size 14Growth 35Conversion 34Competition 44Returns 39Price range 87Avg price 95Brand share 49Review moat 18Quality gap 75
**Avg price**
**Incredible****$25.32**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$9.00–$71.71**
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**
**Okay****76%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****58%**
top-5 click share — leaders hold, buyers still browse
**Returns**
**Okay****3.9%**
return rate — above 5% kills the launch gate
**Growth**
**Okay****+8.4%**
90-day search growth — must beat 0% to launch
**Conversion**
**Okay****2.7%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Bad****16,442.26**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Bad****$55K**
$55K/yr · 81K searches
According to Flapen's Amazon United States niche tracking, iphone 16 plus waterproof case is a $55K/yr Amazon United States market (81K searches/yr). The top 5 brands hold 76% of demand. Demand peaks in Jul–Aug. Verdict: Skip it — 44/100.
Data updated Jul 8, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **iphone 16 plus waterproof case market data**
- **Units sold / yr**
- **2K–3K**
- avg 0–100/product
- **Revenue / yr**
- **$51K–$63K**
- units × avg price
- **Conversion rate**
- **2.7%**
- **Avg BSR**
- **#2,394**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **65%**
- **Out of stock**
- **5.5%**
- **Avg brand age**
- **22 months**
- **Avg seller age**
- **158 days**
## **Competition & brand share**
The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**15 **▼falling
**Sellers**
**30**
**Top-5 brand share**
**76%**
Top 20: 100%
**Top-5 click share**
**58%**
Top 20: 96%
**Open market**
**20%**
- Lanhiem32% - AICase16% - Haireca14% - SPORTLINK10% - ANTSHARE4% - WIFORT4%
## **Demand & seasonality**
Weekly Amazon search volume, last 75 weeks — +8.4% search growth over the last 90 days.
3K2KSpike '25Prime Day '25Spike '26 seasonFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Jul, Aug · busiest ÷ quietest = 2.4×
[**Open Trend **](https://flapen.com/research/us/cell-phones-accessories/iphone-16-plus-waterproof-case/trend)
## **Top iphone 16 plus waterproof case search terms**
- **iphone 16 plus waterproof case**35K/yr+17.1%2.8% conv. - **iphone 16 plus case waterproof**14K/yr+12.5%2.3% conv. - **waterproof iphone 16 plus case**11K/yr+19.3%1.9% conv. - **iphone 16 plus lifeproof case**12K/yr-13.3%1.2% conv. - **iphone 16 plus case lifeproof**5K/yr+8.3%1.6% conv. - **lifeproof iphone 16 plus case**5K/yr-36.4%0.8% conv. [**All search terms **](https://flapen.com/research/us/cell-phones-accessories/iphone-16-plus-waterproof-case/search-terms)
## **Top iphone 16 plus 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%$6K20%$11K30%$17K40%$22K1101001K10K100K1.0M Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1![Lanhiem Magnetic Case for iPhone 16 Plus IP68 Waterproof Dustproof Phone Case [Compatible with Magsafe] [Built-in Screen Protector] Full Body Heavy Duty Rugged Phone Cover 6.7 inch Black](https://m.media-amazon.com/images/I/41Z3ptmYMYL.jpg)**Lanhiem Magnetic Case for iPhone 16 Plus IP68 Waterproof Dustproof Phone Case \[Compatible with Magsafe\] \[Built-in Screen Protector\] Full Body Heavy Duty Rugged Phone Cover 6.7 inch Black**Lanhiem**$21.34**4.2★2,739 rev](https://www.amazon.com/dp/B0DJNN6N7J) [2![Haireca for iPhone 16 Plus Waterproof Case with Magsafe Built-in [Camera & Screen Protector] [Lanyard] IP68 Water Proof Full Body Dustproof Heavy Duty Frosted Protective Phone Cover 6.7 Teal](https://m.media-amazon.com/images/I/412Pst2-GgL.jpg)**Haireca for iPhone 16 Plus Waterproof Case with Magsafe Built-in \[Camera & Screen Protector\] \[Lanyard\] IP68 Water Proof Full Body Dustproof Heavy Duty Frosted Protective Phone Cover 6.7 Teal**Haireca**$23.13**4.0★776 rev](https://www.amazon.com/dp/B0DKDW3T92) [3**AICase Compatible with iPhone 16 Plus Case Waterproof Clear Water Proof Built-in Screen Protector Shockproof Dustproof Snowproof Full Body Rugged Underwater Phone Case**AICase**$17.56**4.3★1,582 rev](https://www.amazon.com/dp/B0D9VFQ22J) [4**Lanhiem for iPhone 16 Plus Case IP68 Waterproof Dustproof Shockproof Cases with Built-in Screen Protector 360 Full Body Heavy Duty Rugged Phone Cover for iPhone 16 Plus - 6.7 inch (Black/Clear)**Lanhiem**$22.56**4.4★426 rev](https://www.amazon.com/dp/B0DHWQP16M) [5**AICase Waterproof Case for iPhone 16 Plus(6.7) with MagSafe Snowproof Dustproof and Shockproof IP68 Certified Real 360 Full Body Protection Fully Sealed Underwater Cover for iPhone 16 Plus**AICase**$20.02**4.4★260 rev](https://www.amazon.com/dp/B0DB5XFKVV)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**ANTSHARE IP68 Waterproof Case for iPhone 16 Plus - Built-in Screen/Lens Protector - Military Drop Shockproof Full Body Protection for Swimming/Outdoor Black/Clear**ANTSHARE**$21.16**906 rev3mo ago](https://www.amazon.com/dp/B0GWLTS6F8) [**ANTSHARE IP68 Waterproof Case for iPhone 16 Plus - Built-in Screen/Lens Protector - Military Drop Shockproof Full Body Protection for Swimming/Outdoor Pink/Clear**ANTSHARE**$22.91**906 rev3mo ago](https://www.amazon.com/dp/B0GWM7ZNK5) [**LOVE BEIDI for iPhone 16 Plus Case Waterproof 6.7 | Shockproof Dust Proof Phone Case Cover with Screen Protector and Kickstand - Black**LOVE BEIDI**$15.91**1 rev9mo ago](https://www.amazon.com/dp/B0FRS61PQP) [**Lanhiem Magnetic for iPhone 16 Plus Waterproof Case Built-in Privacy Screen Protector Compatible with MagSafe Anti-Spy Full Body Phone Case for iPhone 16 Plus 6.7 Black**Lanhiem**$29.29**2,739 rev10mo ago](https://www.amazon.com/dp/B0FQ5KJWCX) [**Mitywah Waterproof Case for iPhone 16 Plus Shockproof Heavy Duty Case with Built-in Screen Protector Underwater Full Body Protective Metal Case 6.7 inch Yellow**Mitywah**$30.68**18,333 rev1y ago](https://www.amazon.com/dp/B0DXFB3C8Q)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**ANTSHARE IP68 Waterproof Case for iPhone 16 Plus - Built-in Screen/Lens Protector - Military Drop Shockproof Full Body Protection for Swimming/Outdoor Black/Clear**ANTSHARE**$21.16**4.4★**▲ 281%**](https://www.amazon.com/dp/B0GWLTS6F8) [**LOVE BEIDI for iPhone 16 Plus Case Waterproof 6.7 | Shockproof Dust Proof Phone Case Cover with Screen Protector and Kickstand - Black**LOVE BEIDI**$15.91**5.0★**▲ 278%**](https://www.amazon.com/dp/B0FRS61PQP) [**ANTSHARE IP68 Waterproof Case for iPhone 16 Plus - Built-in Screen/Lens Protector - Military Drop Shockproof Full Body Protection for Swimming/Outdoor Pink/Clear**ANTSHARE**$22.91**4.4★**▲ 278%**](https://www.amazon.com/dp/B0GWM7ZNK5) [**SPORTLINK for iPhone 16 Plus Case - IP68 Waterproof Military Protective Full Body Heavy Duty Shockproof 360 Sealed Dustproof with Camera Screen Protector Cover for i Phone 16 Plus 6.7 Blue**SPORTLINK**$30.39**4.3★**▲ 218%**](https://www.amazon.com/dp/B0DGSGDGX7) [**AICase Waterproof Case for iPhone 16 Plus(6.7) with MagSafe Snowproof Dustproof and Shockproof IP68 Certified Real 360 Full Body Protection Fully Sealed Underwater Cover for iPhone 16 Plus**AICase**$20.02**4.4★**▲ 113%**](https://www.amazon.com/dp/B0DB5XFKVV)
**~~View all trending →~~**
## **What buyers say about iphone 16 plus waterproof case**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Water Resistance**20%
*“Case is waterproof”*
**Quality-Overall**12%
*“Great product, Exactly as described”*
**Advertised Vs Actual Product**10%
*“As shown”*
**Size-Overall**8%
*“Great size”*
**Ease Of Use**8%
*“It was easy to operate my phone”*
**Value For Money**7%
*“Good price”*
**Efficiency**6%
*“It works”*
**Durability**4%
*“These extra durable pouches are easy to use”*
**Drop/Impact Protection**4%
*“Its a good protector”*
**Strength**2%
*“Solid product”*
### **What buyers complain about **
**Size-Overall**13%
*“Too small”*
**Water Resistance**9%
*“Water got inside”*
**Quality-Overall**9%
*“Poor quality product”*
**Durability**9%
*“Only a 1 time use”*
**Ease Of Use**6%
*“It is a little tricky to close”*
**Touch/Button Controls**4%
*“my touch screen does not work well”*
**Image/Picture Clarity**4%
*“The picture quality is horrible”*
**Functionality-Overall**4%
*“doesn't work”*
**Compatibility-Overall**3%
*“No,could put it on my phone”*
**Advertised Vs Actual Product**2%
*“Not as advertised”*
### **Top return reasons **
**Size-Overall**52%
**Value For Money**10%
**Functionality-Overall**4%
**Advertised Vs Actual Product**4%
**Compatibility-Overall**4%
**Water Resistance**3%
**Touch Screen**3%
**Quality-Overall**3%
**Ease Of Use**2%
**Color**1%
## **Common questions**
- **Is iphone 16 plus waterproof case profitable to sell on Amazon United States?**
- The niche generates $55K/yr across 23 tracked products. 2 of 4 products launched in the last 360 days are still selling. 90-day search growth is +8.4%. Flapen's verdict: Skip it (44/100).
- **How competitive is the iphone 16 plus waterproof case niche?**
- 15 brands and 30 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 76% of demand.
- **What do buyers complain about in iphone 16 plus waterproof case?**
- Top complaints mined from reviews: Size-Overall, Water Resistance, Quality-Overall. The return rate is 3.9%.
- **When does demand for iphone 16 plus waterproof case peak?**
- Demand peaks in Jul–Aug; the busiest month runs 2.4× the quietest.
- **What does it cost to enter the iphone 16 plus waterproof case niche?**
- Listings span $9.00–$71.71; the average listing price is $25.32 (sweet spot $15–$100). The average incumbent carries 16,442 reviews — the moat a new listing must climb.
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