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

The niche generates $111K/yr across 11 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -6.3%. Flapen's verdict: Skip it (39/100).

How competitive is the s21 fe screen protector niche?

11 brands and 16 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 82% of demand.

What do buyers complain about in s21 fe screen protector?

Top complaints mined from reviews: Durability, Size-Overall, Adhesion/Stickiness. The return rate is 1.4%.

When does demand for s21 fe screen protector peak?

Demand peaks in Jul; the busiest month runs 1.6× the quietest.

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

Listings span $4.28–$10.11; the average listing price is $7.40 (sweet spot $15–$100). The average incumbent carries 18,225 reviews — the moat a new listing must climb.

s21 fe screen protector

Skip it

Prices mostly outside the sweet spot ($4.28–$10.11) — this niche doesn't clear our bar today.

Conversion

Incredible16.5%

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

Returns

Great1.4%

return rate — above 5% kills the launch gate

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Brand share

Okay82%

top-5 brand share — brands hold most of the demand

Market size

Okay$111K

$111K/yr · 91K searches

Growth

Bad-6.3%

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

Avg price

Bad$7.40

avg listing price — sweet spot $15–$100

Review moat

Bad18,224.82

avg incumbent reviews — the moat a new listing must climb

Competition

Bad82%

top-5 click share — a locked-up shelf

Price range

Bad$4.28–$10.11

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

According to Flapen's Amazon United States niche tracking, s21 fe screen protector is a $111K/yr Amazon United States market (91K searches/yr). The top 5 brands hold 82% of demand. Demand peaks in Jul. Verdict: Skip it — 39/100.

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

s21 fe screen protector market data

Units sold / yr: 15K–20K; avg 1,250–1,500/product
Revenue / yr: $111K–$148K; units × avg price
Conversion rate: 16.5%
Avg BSR: #650
Page quality: 0%
Prime: 100%
Sponsored: 82%
Out of stock: 0.0%
Avg brand age: 34 months
Avg seller age: 200 days

Competition & brand share

The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.

Brands

11 falling

Sellers

Top-5 brand share

82%

Top 20: 100%

Top-5 click share

82%

Top 20: 100%

Open market

14%

NEW'C41%
Arshek20%
Supershieldz8%
Ailun8%
iCsapr6%
beukei4%
Open — no brand owns it (5 brands, 14%)

Demand & seasonality

Weekly Amazon search volume, last 101 weeks — -6.3% search growth over the last 90 days.

Peak months: Jul · busiest ÷ quietest = 1.6×

Open Trend

Top s21 fe screen protector search terms

s21 fe screen protector20K/yr -5.4%15.5% conv.
galaxy s21 fe 5g screen protector16K/yr -10.7%16.2% conv.
samsung s21 fe screen protector14K/yr -9.1%14.4% conv.
samsung galaxy s21 fe screen protector12K/yr -7.8%14.9% conv.
samsung galaxy s21 fe 5g screen protector8K/yr +2.7%11.8% conv.
galaxy s21 fe screen protector7K/yr -7.2%16.5% conv.
s21fe screen protector6K/yr -12.9%17.0% conv.
s21 fe 5g screen protector4K/yr +5.3%10.5% conv.
samsung s21fe screen protector3K/yr +5.3%13.9% conv.

All search terms

Top s21 fe 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 11 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

NEWC 3 Pack Designed for Samsung Galaxy S21 FE 5G Screen Protector Tempered Glass Case Friendly Scratch-proof Bubble Free Ultra Resistant

NEW'C$7.214.5★107,371 rev

Arshek Galaxy S21 FE Screen Protector and Camera Protector [3 Screen Protectors+3 Camera Protectors][Support Fingerprint] Tempered Glass Screen Protector for Samsung Galaxy S21 FE 5G

Arshek$8.084.3★6,061 rev

(3 Pack) Supershieldz Designed for Samsung Galaxy S21 FE 5G Tempered Glass Screen Protector Anti Scratch Bubble Free

Supershieldz$8.134.6★1,337 rev

Ailun Glass Screen Protector for Galaxy S21fe 3Pack + 2Pack Camera Lens Tempered Glass Fingerprint Unlock Compatible 0.33mm Ultra Clear Anti-Scratch Case Friendly

Ailun$5.844.5★49,227 rev

iCsapr 4 Pack Glass Screen Protector Compatible for Samsung Galaxy S21 FE 5G / SM-g990u [9H Hardness]-HD Screen Tempered Glass Scratch Resistant Easy Install [Case Friendly]

iCsapr$7.044.4★1,917 rev

Newest

by launch date

Didisky [Dust-Free Installation for Samsung Galaxy S21 FE Screen Protector Fingerprint ID Compatible 3 Pack Auto-Alignment Box for Zero Bubbles Full Coverage Tempered Glass 9H Hardness

Didisky$10.014,803 rev

3mo ago

iCsapr 4 Pack Glass Screen Protector Compatible for Samsung Galaxy S21 FE 5G / SM-g990u [9H Hardness]-HD Screen Tempered Glass Scratch Resistant Easy Install [Case Friendly]

iCsapr$7.041,917 rev

1y ago

beukei (4 Pack) Compatible for Samsung Galaxy S21 FE 5G / Galaxy S21 FE (FE Model Only) Screen Protector Tempered Glass Touch Sensitive Case Friendly 9H Hardness

beukei$6.14166 rev

2y ago

KAREEN 2 Pack Screen Protector for Samsung Galaxy S21 FE 5G Tempered Glass Film Support Fingerprint Reader 9H Haredness Anti Scratch Bubble Free Case Friendly

KAREEN$4.28142 rev

2y ago

JETech Screen Protector for Samsung Galaxy S21 FE 5G with Camera Lens Protector Easy Installation Tool Tempered Glass Film Fingerprint ID Compatible 2-Pack Each

JETech$10.1127,208 rev

4y ago

What buyers say about s21 fe screen protector

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

What buyers love

Drop/Impact Protection17%

“Screen Protector”

Size-Overall14%

“Fits perfect”

Assembly/Installation14%

“Easy to place”

Quality-Overall11%

“Great quality and easy to put on the screen”

Advertised Vs Actual Product9%

“As expected”

Ease Of Use7%

“Easy to use”

Value For Money6%

“Great Value”

Durability3%

“it still looks brand new”

Display Resolution3%

“Works great, saved my screen many times”

Strength2%

“Strong coverage”

What buyers complain about

Durability20%

“Breaks easily”

Size-Overall17%

“Did not fit the phone with the case”

Adhesion/Stickiness10%

“Poor adhesive”

Quality-Overall9%

“Not great quality”

Instructions/User Manual/Troubleshooting7%

“Terrible instructions”

Functionality-Overall6%

“Does not work at all”

Compatibility-Overall4%

“Not compatible”

Thin4%

“Screen protector too thin”

Assembly/Installation2%

“Broke on installation”

Touch Screen1%

“touch screen sensitivity is less than my old one. don't remember the brand”

Top return reasons

Size-Overall56%

Compatibility-Overall20%

Adhesion/Stickiness5%

Functionality-Overall5%

Advertised Vs Actual Product3%

Length2%

Value For Money2%