---
title: "Iphone Underwater Case — $83K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/cell-phones-accessories/iphone-underwater-case"
last_updated: "2026-08-09T15:05:46.570Z"
locale: en
meta:
description: "Niche score 50/100 · $83K/yr market · 98K searches/yr. A deep review moat (12,744 avg reviews) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 50/100 · $83K/yr market · 98K searches/yr. A deep review moat (12,744 avg reviews) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Iphone Underwater Case — $83K/yr Amazon US Niche (2026) - Flapen"
---
# **iphone underwater case**
**Worth a look**
Shows a sweet-spot price point ($33.18 avg), but a deep review moat (12,744 avg reviews) keeps it on the watch list.
Market size 21Growth 40Conversion 32Competition 60Returns 32Price range 87Avg price 95Brand share 79Review moat 20Quality gap 78
**Avg price**
**Incredible****$33.18**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$8.17–$76.22**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Great****56%**
top-5 brand share — no brand owns this niche
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Competition**
**Good****49%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Okay****+11.9%**
90-day search growth — must beat 0% to launch
**Conversion**
**Okay****2.5%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Okay****4.4%**
return rate — above 5% kills the launch gate
**Market size**
**Bad****$83K**
$83K/yr · 98K searches
**Review moat**
**Bad****12,744.33**
avg incumbent reviews — the moat a new listing must climb
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
According to Flapen's Amazon United States niche tracking, iphone underwater case is a $83K/yr Amazon United States market (98K searches/yr). The top 5 brands hold 56% of demand. Demand peaks in Mar–May–Jun. Verdict: Worth a look — 50/100.
Data updated Jul 8, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **iphone underwater case market data**
- **Units sold / yr**
- **3K–3K**
- avg 0–100/product
- **Revenue / yr**
- **$83K–$100K**
- units × avg price
- **Conversion rate**
- **2.5%**
- **Avg BSR**
- **#2,785**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **8.1%**
- **Avg brand age**
- **31 months**
- **Avg seller age**
- **190 days**
## **Competition & brand share**
The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**19 **▼falling
**Sellers**
**32**
**Top-5 brand share**
**56%**
Top 20: 88%
**Top-5 click share**
**49%**
Top 20: 89%
**Open market**
**32%**
- Hiearcool15% - TELESIN14% - --12% - Eivitrevy11% - Towevine8% - Pelican8%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +11.9% search growth over the last 90 days.
6K4KHoliday '24Spike '25Prime Day '25Black Friday '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, May, Jun · busiest ÷ quietest = 3.6×
[**Open Trend **](https://flapen.com/research/us/cell-phones-accessories/iphone-underwater-case/trend)
## **Top iphone underwater case search terms**
- **iphone underwater case**15K/yr+9.1%3.0% conv. - **diving phone case**11K/yr+29.3%0.9% conv. - **snorkeling phone case**10K/yr+2.5%2.1% conv. - **underwater iphone case**9K/yr+46.0%2.4% conv. - **underwater iphone case for snorkeling**11K/yr-17.8%3.3% conv. - **underwater snorkeling phone case**8K/yr+24.0%1.9% conv. - **underwater case for iphone**7K/yr+21.4%2.9% conv. - **iphone underwater case for snorkeling**6K/yr+22.4%2.6% conv. - **water proof cases iphone**4K/yr+2.2%0.6% conv. - **underwater phone case for snorkeling**4K/yr+59.7%1.8% conv. [**All search terms **](https://flapen.com/research/us/cell-phones-accessories/iphone-underwater-case/search-terms)
## **Top iphone underwater 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%4%$3K8%$7K12%$10K16%$13K101001K10K100K1.0M Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**TELESIN Universal Underwater Phone Case for Snorkeling and Diving Waterproof Housing for Photo & Video Handle Grip for iPhone 7-17 Pro/Pro Max/Plus/Mini Galaxy S10-S26 Ultra/Plus and Most Phones**TELESIN**$72.60**4.2★1,786 rev](https://www.amazon.com/dp/B0F8VMSHGV) [2**YNVYFI 2026 Underwater Snorkeling Diving Phone Case for Phone 17/16/15/14/13/12Pro Max/Galaxy S26/S25/S24/S23.(50ft/15m) Professional Scuba Dive Waterproof Case Underwater Photo VideoBlue**--**$37.05**4.2★768 rev](https://www.amazon.com/dp/B08MXN3MTK) [3**Hiearcool Waterproof Phone Pouch IPX8 Waterproof Phone Case for iPhone 17/16/15/14 Pro Max Cell Phone Dry Bag for Beach & Cruise Essentials Touch Screen Lanyard Included 2 Pack (Fits Up to 8.9)**Hiearcool**$9.00**4.6★111,802 rev](https://www.amazon.com/dp/B079HV3TC9) [4**Pelican 2 Pack Marine - IP68 Waterproof Phone Pouch (Regular Size) Floating Waterproof Phone Case - Beach Cruise Ship Travel Essentials - Works w/All Phones - Detachable Lanyard - Black/Hi-Vis Yellow**Pelican**$26.60**4.4★15,801 rev](https://www.amazon.com/dp/B09WF6BTXY) [5![Underwater Phone Case for Snorkeling [50ft/15M] Professional Deep Diving Waterproof Phone Case for iPhone 17-7 Pro/Pro Max/Plus/Mini 16/17E SE 2/3 Galaxy S10-S25 Plus/Ultra A21-A56 [Blue]](https://m.media-amazon.com/images/I/51JoKyPKfvL.jpg)**Underwater Phone Case for Snorkeling \[50ft/15M\] Professional Deep Diving Waterproof Phone Case for iPhone 17-7 Pro/Pro Max/Plus/Mini 16/17E SE 2/3 Galaxy S10-S25 Plus/Ultra A21-A56 \[Blue\]**Eivitrevy**$36.16**4.1★117 rev](https://www.amazon.com/dp/B0DT3MQSTZ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[![ibelief Underwater Phone Case for Snorkeling Design for iPhone [50ft/15m] Diving Waterproof Housing for Photo & Video Handle Grip for iPhone 17 16 15 14 13 12 Pro Max Up to 6.9 inch Black](https://m.media-amazon.com/images/I/513EdfR0i2L.jpg)**ibelief Underwater Phone Case for Snorkeling Design for iPhone \[50ft/15m\] Diving Waterproof Housing for Photo & Video Handle Grip for iPhone 17 16 15 14 13 12 Pro Max Up to 6.9 inch Black**ibelief**$39.59**15 rev2mo ago](https://www.amazon.com/dp/B0GX8K8TM6) [![Upgrade Underwater Phone Case for Snorkeling [50ft/15M] Deep IPX8 Waterproof Hard-Shell Scuba Diving Cases for iPhone 17-11 Pro/PM/Plus X/Xr/Xs Max 16/17E 13/12Mini 8/7P SE2/3 [Gray-Pro]](https://m.media-amazon.com/images/I/51GznfKvR9L.jpg)**Upgrade Underwater Phone Case for Snorkeling \[50ft/15M\] Deep IPX8 Waterproof Hard-Shell Scuba Diving Cases for iPhone 17-11 Pro/PM/Plus X/Xr/Xs Max 16/17E 13/12Mini 8/7P SE2/3 \[Gray-Pro\]**Eivitrevy**$37.66**16 rev4mo ago](https://www.amazon.com/dp/B0GRVC5KMD) [![DANZHANG Upgrade IP68 Underwater Phone Case for Snorkeling [50ft/15M] Professional Waterproof Diving Case Designed for iPhone 7-17 Pro Max/Pro/Plus/Mini SE 2/3 Underwater Photo & Video Gray](https://m.media-amazon.com/images/I/51zExVWsSrL.jpg)**DANZHANG Upgrade IP68 Underwater Phone Case for Snorkeling \[50ft/15M\] Professional Waterproof Diving Case Designed for iPhone 7-17 Pro Max/Pro/Plus/Mini SE 2/3 Underwater Photo & Video Gray**DANZHANG**$33.32**31 rev4mo ago](https://www.amazon.com/dp/B0GRV3874R) [![DANZHANG Upgrade Underwater Phone Case for Snorkeling [50ft/15M] Deep Diving Waterproof Phone Case for iPhone 17-7 Pro/Pro Max/Plus/Mini 16/17E SE 2/3 Galaxy S10-S25 Plus/Ultra A21-A56 (Classic)](https://m.media-amazon.com/images/I/5141n2i5ZWL.jpg)**DANZHANG Upgrade Underwater Phone Case for Snorkeling \[50ft/15M\] Deep Diving Waterproof Phone Case for iPhone 17-7 Pro/Pro Max/Plus/Mini 16/17E SE 2/3 Galaxy S10-S25 Plus/Ultra A21-A56 (Classic)**DANZHANG**$36.04**59 rev4mo ago](https://www.amazon.com/dp/B0GRGCZ1C5) [**Underwater Phone Case for Snorkeling - Waterproof Touchscreen Diving Housing Universal Underwater Phone Case for iPhone 16/15/14/13 Pro Max Samsung Galaxy S26/S25/S24 Ultra Up to 6.9 (Black)**ibelief**$56.55**43 rev6mo ago](https://www.amazon.com/dp/B0GD4SF7V8)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[![DANZHANG Upgrade IP68 Underwater Phone Case for Snorkeling [50ft/15M] Professional Waterproof Diving Case Designed for iPhone 7-17 Pro Max/Pro/Plus/Mini SE 2/3 Underwater Photo & Video Gray](https://m.media-amazon.com/images/I/51zExVWsSrL.jpg)**DANZHANG Upgrade IP68 Underwater Phone Case for Snorkeling \[50ft/15M\] Professional Waterproof Diving Case Designed for iPhone 7-17 Pro Max/Pro/Plus/Mini SE 2/3 Underwater Photo & Video Gray**DANZHANG**$33.32**4.5★**▲ 180%**](https://www.amazon.com/dp/B0GRV3874R) [**Underwater Phone Case for Snorkeling - Waterproof Touchscreen Diving Housing Universal Underwater Phone Case for iPhone 16/15/14/13 Pro Max Samsung Galaxy S26/S25/S24 Ultra Up to 6.9 (Black)**ibelief**$56.55**4.3★**▲ 180%**](https://www.amazon.com/dp/B0GD4SF7V8) [![ibelief Underwater Phone Case for Snorkeling Design for iPhone [50ft/15m] Diving Waterproof Housing for Photo & Video Handle Grip for iPhone 17 16 15 14 13 12 Pro Max Up to 6.9 inch Black](https://m.media-amazon.com/images/I/513EdfR0i2L.jpg)**ibelief Underwater Phone Case for Snorkeling Design for iPhone \[50ft/15m\] Diving Waterproof Housing for Photo & Video Handle Grip for iPhone 17 16 15 14 13 12 Pro Max Up to 6.9 inch Black**ibelief**$39.59**4.3★**▲ 180%**](https://www.amazon.com/dp/B0GX8K8TM6) [![Upgrade Underwater Phone Case for Snorkeling [50ft/15M] Deep IPX8 Waterproof Hard-Shell Scuba Diving Cases for iPhone 17-11 Pro/PM/Plus X/Xr/Xs Max 16/17E 13/12Mini 8/7P SE2/3 [Gray-Pro]](https://m.media-amazon.com/images/I/51GznfKvR9L.jpg)**Upgrade Underwater Phone Case for Snorkeling \[50ft/15M\] Deep IPX8 Waterproof Hard-Shell Scuba Diving Cases for iPhone 17-11 Pro/PM/Plus X/Xr/Xs Max 16/17E 13/12Mini 8/7P SE2/3 \[Gray-Pro\]**Eivitrevy**$37.66**4.4★**▲ 179%**](https://www.amazon.com/dp/B0GRVC5KMD) [**YIXXI 100ft/30M Scuba Diving Phone Case Universal Underwater Waterproof Housing for Snorkeling Compatible with iPhone 17-7 Pro Max Galaxy S26-S10 Ultra Gen 5 Black**YIXXI**$53.99**4.2★**▲ 177%**](https://www.amazon.com/dp/B0FMNDWS5Z)
**~~View all trending →~~**
## **What buyers say about iphone underwater case**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Water Resistance**21%
*“Fully waterproof”*
**Quality-Overall**13%
*“The build quality feels solid right out of the box”*
**Advertised Vs Actual Product**8%
*“As advertised”*
**Ease Of Use**8%
*“Very handy”*
**Size-Overall**7%
*“Great fit”*
**Value For Money**6%
*“Worth The Money”*
**Efficiency**5%
*“efficient”*
**Image/Picture Clarity**4%
*“The image quality was decent”*
**Durability**4%
*“Very durable”*
**Drop/Impact Protection**3%
*“Great Protection”*
### **What buyers complain about **
**Size-Overall**13%
*“Too big”*
**Water Resistance**10%
*“NOT waterproof”*
**Ease Of Use**7%
*“Hard to use”*
**Quality-Overall**7%
*“Cheaper quality than I would normally purchase”*
**Touch/Button Controls**6%
*“I couldn't press the buttons”*
**Durability**5%
*“Fell apart first use”*
**Compatibility-Overall**4%
*“it does not work with any devices I have at the moment”*
**Functionality-Overall**4%
*“not functional”*
**Image/Picture Clarity**3%
*“the pictures are blurry”*
**Charging**3%
*“Doesnt charge”*
### **Top return reasons **
**Size-Overall**51%
**Compatibility-Overall**7%
**Value For Money**7%
**Functionality-Overall**5%
**Advertised Vs Actual Product**4%
**Ease Of Use**4%
**Touch Screen**3%
**Touch/Button Controls**3%
**Water Resistance**3%
**Quality-Overall**2%
## **Common questions**
- **Is iphone underwater case profitable to sell on Amazon United States?**
- The niche generates $83K/yr across 30 tracked products. 8 of 9 products launched in the last 360 days are still selling. 90-day search growth is +11.9%. Flapen's verdict: Worth a look (50/100).
- **How competitive is the iphone underwater case niche?**
- 19 brands and 32 sellers compete. The top 5 products take 49% of clicks and top 5 brands hold 56% of demand.
- **What do buyers complain about in iphone underwater case?**
- Top complaints mined from reviews: Size-Overall, Water Resistance, Ease Of Use. The return rate is 4.4%.
- **When does demand for iphone underwater case peak?**
- Demand peaks in Mar–May–Jun; the busiest month runs 3.6× the quietest.
- **What does it cost to enter the iphone underwater case niche?**
- Listings span $8.17–$76.22; the average listing price is $33.18 (sweet spot $15–$100). The average incumbent carries 12,744 reviews — the moat a new listing must climb.
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