Is dji osmo action 4 waterproof case profitable to sell on Amazon United States?

The niche generates $63K/yr across 13 tracked products. 2 of 4 products launched in the last 360 days are still selling. 90-day search growth is +64.2%. Flapen's verdict: Skip it (46/100).

How competitive is the dji osmo action 4 waterproof case niche?

8 brands and 30 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 94% of demand.

What do buyers complain about in dji osmo action 4 waterproof case?

Top complaints mined from reviews: Product Condition, Durability, Water Resistance. The return rate is 4.3%.

When does demand for dji osmo action 4 waterproof case peak?

Demand peaks in Jun–Jul; the busiest month runs 2.5× the quietest.

What does it cost to enter the dji osmo action 4 waterproof case niche?

Listings span $7.53–$91.74; the average listing price is $26.44 (sweet spot $15–$100). The average incumbent carries 336 reviews — the moat a new listing must climb.

dji osmo action 4 waterproof case

Skip it

Brand-locked demand (top 5 brands take 94% of clicks) — this niche doesn't clear our bar today.

Avg price

Incredible$26.44

avg listing price — sweet spot $15–$100

Price range

Great$7.53–$91.74

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

Review moat

Great336.38

avg incumbent reviews — the moat a new listing must climb

Growth

Great+64.2%

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

Conversion

Good5.5%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Returns

Okay4.3%

return rate — above 5% kills the launch gate

Competition

Bad80%

top-5 click share — a locked-up shelf

Market size

Bad$63K

$63K/yr · 43K searches

Brand share

Bad94%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, dji osmo action 4 waterproof case is a $63K/yr Amazon United States market (43K searches/yr). The top 5 brands hold 94% of demand. Demand peaks in Jun–Jul. Verdict: Skip it — 46/100.

Data updated Jul 21, 2026 · scored weekly · How we score niches

dji osmo action 4 waterproof case market data

Units sold / yr: 2K–3K; avg 100–250/product
Revenue / yr: $53K–$66K; units × avg price
Conversion rate: 5.5%
Avg BSR: #44
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 20 months
Avg seller age: 185 days

Competition & brand share

The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.

Brands

8 flat

Sellers

Top-5 brand share

94%

Top 20: 100%

Top-5 click share

80%

Top 20: 100%

Open market

TELESIN39%
BO&DQQ18%
DJI16%
FiTSTILL16%
Suptig5%
PULUZ2%
Open — no brand owns it (2 brands, 3%)

Demand & seasonality

Weekly Amazon search volume, last 56 weeks — +64.2% search growth over the last 90 days.

Peak months: Jun, Jul · busiest ÷ quietest = 2.5×

Open Trend

Top dji osmo action 4 waterproof case search terms

dji osmo action 4 waterproof case7K/yr +120.7%5.0% conv.
dji osmo action 5 pro waterproof case11K/yr +46.8%6.5% conv.
dji action 5 pro waterproof case7K/yr +36.3%5.9% conv.
dji waterproof case5K/yr +56.9%2.6% conv.
dji action 4 waterproof case5K/yr +83.5%7.1% conv.
dji osmo action waterproof case3K/yr +50.0%2.4% conv.
dji osmo waterproof case2K/yr +67.8%1.7% conv.
dji action 5 waterproof case3K/yr +52.7%7.5% conv.

All search terms

Top dji osmo action 4 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 13 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

TELESIN Waterproof Case for DJI Action 5 Pro Action 4/3 Camera with Anti-Fog Underwater Housing Shell Cage Supports 60M/196FT Deep Diving Scuba Snorkeling Swimming with Quick Release Screw

TELESIN$16.044.5★898 rev

BO&DQQ Underwater Waterproof Case Compatible with DJI Osmo Action 5 Pro/Action 4/Action 3 164FT/50M Dive Diving Housing Cover Shell with Camera Handle Mount Accessories Kit

BO&DQQ$23.594.2★143 rev

DJI Osmo Action Diving Accessory Kit Compatibility: Osmo Action 3 Osmo Action 4 Osmo Action 5 Pro

DJI$91.744.6★943 rev

TELESIN Waterproof Case With Floating Stick for DJI Action 5 Pro Action 4/3 Camera with Anti-Fog Underwater Housing Shell Cage Supports 60M/196FT Deep Diving Scuba Snorkeling with Quick Release Screw

TELESIN$26.774.5★898 rev

FitStill 196FT/60M Waterproof Case Compatible for DJI Osmo Action 5 Pro Action 4 Action 3 Underwater Diving Protective Cover Cage Shell Accessories Invisible Dive Housing for Action 5 Pro/4/3 Camera

FiTSTILL$14.194.5★209 rev

Newest

by launch date

TELESIN Waterproof Case With Floating Stick for DJI Action 5 Pro Action 4/3 Camera with Anti-Fog Underwater Housing Shell Cage Supports 60M/196FT Deep Diving Scuba Snorkeling with Quick Release Screw

TELESIN$26.77898 rev

6mo ago

Suptig Waterproof Case Compatible for DJI Action 5 Pro Action 5/4/3 Camera Underwater Housing 50M/164ft for Diving Scuba Snorkeling Swimming

Suptig$15.7128 rev

8mo ago

Suptig Waterproof Case Dive Case Compatible for DJI Action 5 pro/Action 5/4/3 for Diving Scuba Snorkeling Swimming Waterproof Up to 164ft(50 Meters)

Suptig$18.9437 rev

11mo ago

FitStill 60M/196FT Diving Kit for DJI osmo Action 5 pro/4/3 Waterproof Housing + Buoyancy Handle for Underwater Shooting DJI Action 5pro/4/3 Protective Accessories

FiTSTILL$23.4036 rev

1y ago

FitStill 196FT/60M Waterproof Case Compatible for DJI Osmo Action 5 Pro Action 4 Action 3 Underwater Diving Protective Cover Cage Shell Accessories Invisible Dive Housing for Action 5 Pro/4/3 Camera

FiTSTILL$14.19209 rev

1y ago

What buyers say about dji osmo action 4 waterproof case

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

What buyers love

Water Resistance17%

“the waterproofing appears adequate —”

Quality-Overall12%

“Really like the quality of this feels like a great quality case”

Advertised Vs Actual Product10%

“Worked as advertised”

Size-Overall9%

“Fits perfectly”

Value For Money8%

“Great deal”

Drop/Impact Protection6%

“It protected the camera”

Ease Of Use5%

“Easy to use”

Durability3%

“Durable case”

Lenses3%

“especially the area over the lens are crystal clear”

Touch/Button Controls3%

“the two button controls work well”

What buyers complain about

Product Condition10%

“Not new, box opened and parts missing”

Durability7%

“the screw hole broke within the first use”

Water Resistance6%

“the water was seeping in under it when testing in the sink”

Lenses5%

“The filters were WAY TOO HUGE to fit onto the lens area as shown in the product images”

Rusts/Corrodes5%

“the long swivel screw that holds bottom of case already rusted”

Touch/Button Controls5%

“However, actually using the camera underwater is a bit frustrating because the buttons on the case are incredibly stiff and hard to press”

Value For Money5%

“Not worth losing $400 camera”

Size-Overall4%

“which is way too long for what i use it for”

Audio Quality4%

“Down fall hard to catch audio sound on play back”

Magnetic Strength/Adsorption3%

“DJI extension with magnetic mount will not fit”

Top return reasons

Size-Overall20%

Compatibility-Overall16%

Advertised Vs Actual Product10%

Value For Money10%

Water Resistance7%

Weight Heavy4%

Functionality-Overall4%

Quality-Overall3%

Defective Material/Parts2%

Mechanism Issues2%

Common questions

Is dji osmo action 4 waterproof case profitable to sell on Amazon United States?: The niche generates $63K/yr across 13 tracked products. 2 of 4 products launched in the last 360 days are still selling. 90-day search growth is +64.2%. Flapen's verdict: Skip it (46/100).
How competitive is the dji osmo action 4 waterproof case niche?: 8 brands and 30 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 94% of demand.
What do buyers complain about in dji osmo action 4 waterproof case?: Top complaints mined from reviews: Product Condition, Durability, Water Resistance. The return rate is 4.3%.
When does demand for dji osmo action 4 waterproof case peak?: Demand peaks in Jun–Jul; the busiest month runs 2.5× the quietest.
What does it cost to enter the dji osmo action 4 waterproof case niche?: Listings span $7.53–$91.74; the average listing price is $26.44 (sweet spot $15–$100). The average incumbent carries 336 reviews — the moat a new listing must climb.