Is s21 privacy screen protector profitable to sell on Amazon United States?

The niche generates $41K/yr across 21 tracked products. 0 of 9 products launched in the last 360 days are still selling. 90-day search growth is -24.5%. Flapen's verdict: Skip it (46/100).

How competitive is the s21 privacy screen protector niche?

21 brands and 27 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 57% of demand.

What do buyers complain about in s21 privacy screen protector?

Top complaints mined from reviews: Size-Overall, Advertised Vs Actual Product, Security. The return rate is 3.8%.

When does demand for s21 privacy screen protector peak?

Demand peaks in Jul; the busiest month runs 1.7× the quietest.

What does it cost to enter the s21 privacy screen protector niche?

Listings span $5.97–$18.30; the average listing price is $9.86 (sweet spot $15–$100). The average incumbent carries 1,897 reviews — the moat a new listing must climb.

s21 privacy screen protector

Skip it

A small market ($41K/yr) — this niche doesn't clear our bar today.

Conversion

Incredible13.5%

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

Quality gap

Great4.1★

avg incumbent rating — lower means beatable quality

Brand share

Great57%

top-5 brand share — no brand owns this niche

Competition

Okay57%

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

Review moat

Okay1,897.1

avg incumbent reviews — the moat a new listing must climb

Returns

Okay3.8%

return rate — above 5% kills the launch gate

Avg price

Okay$9.86

avg listing price — sweet spot $15–$100

Price range

Okay$5.97–$18.30

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

Growth

Bad-24.5%

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

Market size

Bad$41K

$41K/yr · 31K searches

According to Flapen's Amazon United States niche tracking, s21 privacy screen protector is a $41K/yr Amazon United States market (31K searches/yr). The top 5 brands hold 57% of demand. Demand peaks in Jul. Verdict: Skip it — 46/100.

Data updated Jul 6, 2026 · scored weekly · How we score niches

s21 privacy screen protector market data

Units sold / yr: 3K–4K; avg 100–250/product
Revenue / yr: $30K–$39K; units × avg price
Conversion rate: 13.5%
Avg BSR: #2,368
Page quality: 0%
Prime: 100%
Sponsored: 86%
Out of stock: 15.4%
Avg brand age: 32 months
Avg seller age: 235 days

Competition & brand share

The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.

Brands

21 rising

Sellers

Top-5 brand share

57%

Top 20: 99%

Top-5 click share

57%

Top 20: 99%

Open market

37%

HPTech21%
UniqueMe13%
CHRINECY11%
Geviaho7%
BIGFLYANTS6%
Fynorao6%

Demand & seasonality

Weekly Amazon search volume, last 99 weeks — -24.5% search growth over the last 90 days.

Peak months: Jul · busiest ÷ quietest = 1.7×

Open Trend

Top s21 privacy screen protector search terms

s21 privacy screen protector7K/yr -19.8%7.9% conv.
galaxy s21 privacy screen protector5K/yr -16.3%8.3% conv.
samsung s21 privacy screen protector4K/yr -28.7%9.0% conv.
s21 screen protector privacy4K/yr -8.3%9.3% conv.
samsung galaxy s21 privacy screen protector4K/yr -28.8%9.9% conv.
galaxy s21 screen protector privacy2K/yr -47.8%13.7% conv.
privacy screen samsung s212K/yr -30.6%8.9% conv.
samsung s21 screen protector privacy2K/yr -30.7%11.6% conv.
privacy screen galaxy s211K/yr -29.4%11.7% conv.

All search terms

Top s21 privacy screen protector 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 21 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

HPTech 2 Pack Privacy Screen Protector for Samsung Galaxy S21 Galaxy S21 5G Anti Spy Tempered Glass [Dont Support Fingerprint Unlock] Anti Scratch Bubble Free

HPTech$6.054.2★2,074 rev

UniqueMe [2+2 Pack] Compatible with Samsung S21 Privacy Screen Protector Tempered Glass and Camera Lens Protector Anti Spy [Easy Installation Frame] Bubble Free

UniqueMe$15.034.3★32,704 rev

CHRINECY [4 Pack] 2 Pack Privacy Screen Protector for Samsung Galaxy S21 5G with 2 Pack Camera Lens Protector 9H Hardness Anti Spy Tempered Glass Screen Protector

CHRINECY$8.634.1★988 rev

Geviaho (2 Pack) Galaxy S21 Privacy Screen Protector Tempered Glass 9H Hardness 2D Curved Full Coverage Bubble Free Support Fingerprint For Samsung Galaxy S21 6.2 Inch

Geviaho$12.194.3★1,033 rev

BIGFLYANTS 2 Pack Privacy Screen Protector for Samsung Galaxy S21 with 2 Camera Lens Protector Anti-Spy Tempered Glass Film Full Coverage Anti-Scratch Bubble Free Easy Installation

BIGFLYANTS$7.644.0★280 rev

Newest

by launch date

Geviaho (2 Pack) Galaxy S21 Privacy Screen Protector Tempered Glass 9H Hardness 2D Curved Full Coverage Bubble Free Support Fingerprint For Samsung Galaxy S21 6.2 Inch

Geviaho$12.191,033 rev

2mo ago

2 Pack For Galaxy S21 Privacy Screen Protector With 2 Pack Camera Lens Protector Anti Spy Private Tempered Glass Film 9H Hardness Anti Fingerprint Scratch Resistant Bubble Free Easy Install(6.2 Inch)

SunColorful$11.06194 rev

2mo ago

Cnarery 2 Pack for Samsung Galaxy S21 Matte Privacy Screen Protector 6.2 Inch[Not Glass] Anti-Scratch Anti-Glare Support fingerprint Unlock

Cnarery$18.3065 rev

3mo ago

MSTSKTWO 2 Pack Privacy Screen Protector for Samsung Galaxy S21 5G with 2 Pack Camera Lens Protector 9H Hardness Anti Spy Tempered Glass

MSTSKTWO$7.9212 rev

5mo ago

QUESPLE 2 Pack for Samsung Galaxy S21 Anti-Glare Matte Privacy Screen Protector 6.2 inch Smooth and Responsive Touch Flexible EPU Film [Support Fingerprint Unlock] [Self-Healing] [Not Glass]

QUESPLE$16.8852 rev

6mo ago

What buyers say about s21 privacy screen protector

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

What buyers love

Security21%

“Overall it does its job with privacy”

Drop/Impact Protection14%

“Great privacy screen protector”

Quality-Overall11%

“So overall quality for installation great”

Size-Overall9%

“Fits great”

Advertised Vs Actual Product7%

“you get as advertised”

Touch/Button Controls5%

“neat the fingerprint sensor does work you just have to press a little bit firm to get it to activate other than that I'm not sure about destruction resistance because I have not tried to do anything to it or anything like that”

Ease Of Use5%

“easiest surprisingly,”

Assembly/Installation4%

“Looks great, easy to install”

Value For Money2%

“I guess for the price it will suffice”

Ease Of Cleaning2%

“I cleaned and dried my phone thoroughly”

What buyers complain about

Size-Overall16%

“Doesn't fit phone it says it's for”

Advertised Vs Actual Product16%

“Bad description”

Security12%

“Doesn't really provide privacy”

Functionality-Overall8%

“I cant even set new prints with this on”

Value For Money7%

“Definitely not worth purchasing”

Compatibility-Overall7%

“not finger print compatible”

Touch Screen6%

“but even then, it doesn't even fully block out the screen”

Durability4%

“Impaired phone function AND BROKEN after only 3 weeks”

Software/Application3%

“My only complaint with this item is my finger scan is not recognized through it to log into my accounts so I had to take it off”

Quality-Overall3%

“Poor quality”

Top return reasons

Size-Overall61%

Compatibility-Overall12%

Functionality-Overall10%

Advertised Vs Actual Product3%

Touch Screen3%

Security2%

Value For Money1%

Product Condition1%

Display-Overall1%

Defective Material/Parts1%

Common questions

Is s21 privacy screen protector profitable to sell on Amazon United States?: The niche generates $41K/yr across 21 tracked products. 0 of 9 products launched in the last 360 days are still selling. 90-day search growth is -24.5%. Flapen's verdict: Skip it (46/100).
How competitive is the s21 privacy screen protector niche?: 21 brands and 27 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 57% of demand.
What do buyers complain about in s21 privacy screen protector?: Top complaints mined from reviews: Size-Overall, Advertised Vs Actual Product, Security. The return rate is 3.8%.
When does demand for s21 privacy screen protector peak?: Demand peaks in Jul; the busiest month runs 1.7× the quietest.
What does it cost to enter the s21 privacy screen protector niche?: Listings span $5.97–$18.30; the average listing price is $9.86 (sweet spot $15–$100). The average incumbent carries 1,897 reviews — the moat a new listing must climb.