Is iphone 16 pro max waterproof case profitable to sell on Amazon United States?

The niche generates $220K/yr across 29 tracked products. 3 of 5 products launched in the last 360 days are still selling. 90-day search growth is +34.9%. Flapen's verdict: Worth a look (58/100).

How competitive is the iphone 16 pro max waterproof case niche?

22 brands and 38 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 54% of demand.

What do buyers complain about in iphone 16 pro max waterproof case?

Top complaints mined from reviews: Size-Overall, Durability, Water Resistance. The return rate is 4.5%.

When does demand for iphone 16 pro max waterproof case peak?

Demand peaks in Jun–Jul–Aug; the busiest month runs 2.6× the quietest.

What does it cost to enter the iphone 16 pro max waterproof case niche?

Listings span $8.17–$74.54; the average listing price is $24.96 (sweet spot $15–$100). The average incumbent carries 11,637 reviews — the moat a new listing must climb.

iphone 16 pro max waterproof case

Worth a look

Shows a sweet-spot price point ($24.96 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Avg price

Incredible$24.96

avg listing price — sweet spot $15–$100

Price range

Great$8.17–$74.54

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

Brand share

Great54%

top-5 brand share — no brand owns this niche

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Competition

Good48%

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

Growth

Good+34.9%

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

Conversion

Okay3.6%

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

Market size

Okay$220K

$220K/yr · 247K searches

Returns

Okay4.5%

return rate — above 5% kills the launch gate

Review moat

Bad11,637

avg incumbent reviews — the moat a new listing must climb

Signals No Dominant Brand

According to Flapen's Amazon United States niche tracking, iphone 16 pro max waterproof case is a $220K/yr Amazon United States market (247K searches/yr). The top 5 brands hold 54% of demand. Demand peaks in Jun–Jul–Aug. Verdict: Worth a look — 58/100.

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

iphone 16 pro max waterproof case market data

Units sold / yr: 8K–10K; avg 250–500/product
Revenue / yr: $200K–$250K; units × avg price
Conversion rate: 3.6%
Avg BSR: #2,033
Page quality: 0%
Prime: 100%
Sponsored: 93%
Out of stock: 3.9%
Avg brand age: 23 months
Avg seller age: 167 days

Competition & brand share

The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.

Brands

22 falling

Sellers

Top-5 brand share

54%

Top 20: 99%

Top-5 click share

48%

Top 20: 93%

Open market

40%

Lanhiem15%
SPIDERCASE12%
SPORTLINK10%
Evcing8%
AICase8%
OtterBox6%

Demand & seasonality

Weekly Amazon search volume, last 88 weeks — +34.9% search growth over the last 90 days.

Peak months: Jun, Jul, Aug · busiest ÷ quietest = 2.6×

Open Trend

Top iphone 16 pro max waterproof case search terms

iphone 16 pro max waterproof case103K/yr +26.9%3.3% conv.
waterproof iphone 16 pro max case50K/yr +23.7%2.4% conv.
waterproof phone case iphone 16 pro max25K/yr +93.3%2.9% conv.
water proof iphone 16 pro max case12K/yr +52.7%2.4% conv.
waterproof case iphone 16 pro max8K/yr +51.7%3.4% conv.
waterproof case for iphone 16 pro max10K/yr +32.0%3.2% conv.
water proof phone case iphone 16 pro max7K/yr +38.2%2.8% conv.
waterproof case 16 pro max9K/yr -2.7%3.3% conv.
16 pro max waterproof case7K/yr +31.3%3.0% conv.
iphone 16 promax waterproof case5K/yr +31.1%3.6% conv.

All search terms

Top iphone 16 pro max 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 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Lanhiem Magnetic for iPhone 16 Pro Max Case IP68 Waterproof Dustproof Case [Compatible with Magsafe] [Built-in Screen Protector] Full Body Heavy Duty Rugged Phone Cover 6.9 inch Black/Clear

Lanhiem$21.674.2★2,739 rev

SPIDERCASE for iPhone 16 Pro Max Case Waterproof Built-in Screen & Camera Protector [IP68 Underwater][Full Body Shockproof][Dustproof] 12FT Heavy Duty Rugged Phone Cover 6.9 inch Black

SPIDERCASE$22.234.3★9,204 rev

SPORTLINK for iPhone 16 Pro Max Case - IP68 Waterproof Military Protective Full Body Heavy Duty Shockproof 360 Sealed Dustproof with Camera Screen Protector Cover for i Phone 16 Pro Max 6.9 Black

SPORTLINK$27.924.3★12,028 rev

Evcing for iPhone 16 Pro Max Waterproof Case Compatible with MagSafe IP68 Underwater Case Built-in Screen Protector Slim Translucent 360 Full Body Protection 12FT Military Grade 6.9 Inch (Black)

Evcing$22.424.0★346 rev

WIFORT for iPhone 16 Pro Max Waterproof Case [IP68 Underwater] [Blue Light Filter Lens] [15FT Military Shockproof] Fit for Magsafe Full Body Magnetic Frosted Phone Case with Lanyard 6.9 Teal

WIFORT$24.774.2★1,430 rev

Newest

by launch date

ANTSHARE IP68 Waterproof Case for iPhone 16 Pro Max - Built-in Screen/Lens Protector - Military Drop Shockproof Full Body Protection for Swimming/Outdoor Black/Clear

ANTSHARE$21.28906 rev

3mo ago

SPIDERCASE for iPhone 16 Pro Max Case Waterproof Built-in Screen & Camera Protector [IP68 Underwater][Full Body Shockproof][Dustproof] 12FT Heavy Duty Rugged Phone Cover 6.9 inch Black

SPIDERCASE$22.239,204 rev

5mo ago

Red2Fire Magnetic for iPhone 16 Pro Max Case Waterproof [Built-in Screen Protector][Compatible with MagSafe] [Full Body Shockproof] [Dustproof] Heavy Duty Rugged Phone Cover 6.9 Black

Red2Fire$39.30374 rev

10mo ago

Cozycase TOP Military IP68 Waterproof Case for iPhone 16 Pro Max - 360 Heavy Duty with Screen/Camera Protector Shockproof Dustproof Water Dust Shock Proof Full Body/Front and Back Case Frosted Clear

Cozycase$25.5814,802 rev

12mo ago

Lanhiem Magnetic for iPhone 16 Pro Max Case IP68 Waterproof Dustproof Case [Compatible with Magsafe] [Built-in Screen Protector] Full Body Heavy Duty Rugged Phone Cover 6.9 inch Desert

Lanhiem$28.202,739 rev

1y ago

What buyers say about iphone 16 pro max waterproof case

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

What buyers love

Water Resistance21%

“And waterproof”

Quality-Overall12%

“Its a good quality case”

Advertised Vs Actual Product9%

“As advertised”

Value For Money8%

“Value for money”

Size-Overall7%

“Fits perfectly”

Ease Of Use7%

“Very handy”

Efficiency5%

“seems to be effective”

Durability5%

“Very durable”

Drop/Impact Protection5%

“Protected my phone”

Image/Picture Clarity2%

“The pictures where very clear”

What buyers complain about

Size-Overall13%

“Didnt fit”

Durability11%

“Breaks easily”

Water Resistance9%

“Water got in”

Touch/Button Controls8%

“Buttons dont work”

Quality-Overall7%

“Low quality”

Ease Of Use6%

“too hard to use”

Audio Quality3%

“Horrible sound quality”

Compatibility-Overall3%

“Not even MagSafe compatible”

Functionality-Overall3%

“Didnt work”

Value For Money3%

“That makes this much more expensive”

Top return reasons

Size-Overall51%

Value For Money7%

Compatibility-Overall6%

Advertised Vs Actual Product4%

Functionality-Overall4%

Water Resistance3%

Touch/Button Controls3%

Touch Screen3%

Ease Of Use3%

Quality-Overall2%

Common questions

Is iphone 16 pro max waterproof case profitable to sell on Amazon United States?: The niche generates $220K/yr across 29 tracked products. 3 of 5 products launched in the last 360 days are still selling. 90-day search growth is +34.9%. Flapen's verdict: Worth a look (58/100).
How competitive is the iphone 16 pro max waterproof case niche?: 22 brands and 38 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 54% of demand.
What do buyers complain about in iphone 16 pro max waterproof case?: Top complaints mined from reviews: Size-Overall, Durability, Water Resistance. The return rate is 4.5%.
When does demand for iphone 16 pro max waterproof case peak?: Demand peaks in Jun–Jul–Aug; the busiest month runs 2.6× the quietest.
What does it cost to enter the iphone 16 pro max waterproof case niche?: Listings span $8.17–$74.54; the average listing price is $24.96 (sweet spot $15–$100). The average incumbent carries 11,637 reviews — the moat a new listing must climb.