---
title: "S21 Fe Screen Protector — $111K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/cell-phones-accessories/s21-fe-screen-protector"
last_updated: "2026-08-09T09:52:15.744Z"
locale: en
meta:
description: "Niche score 39/100 · $111K/yr market · 91K searches/yr · $7.40 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 39/100 · $111K/yr market · 91K searches/yr · $7.40 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "S21 Fe Screen Protector — $111K/yr Amazon US Niche (2026) - Flapen"
---
# **s21 fe screen protector**
**Skip it**
Prices mostly outside the sweet spot ($4.28–$10.11) — this niche doesn't clear our bar today.
Market size 27Growth 22Conversion 98Competition 15Returns 88Price range 0Avg price 21Brand share 38Review moat 17Quality gap 57
**Conversion**
**Incredible****16.5%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Great****1.4%**
return rate — above 5% kills the launch gate
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****82%**
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**
**Bad****18,224.82**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****82%**
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 ~~](https://flapen.com/research/methodology)
## **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**
**16**
**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.
4K3KPrime Day '25 seasonDecMarJunAugNovMarMay
Peak months: Jul · busiest ÷ quietest = 1.6×
[**Open Trend **](https://flapen.com/research/us/cell-phones-accessories/s21-fe-screen-protector/trend)
## **Top s21 fe screen protector search terms**
- **s21 fe screen protector**20K/yr-5.4%15.5% conv. - **galaxy s21 fe 5g screen protector**16K/yr-10.7%16.2% conv. - **samsung s21 fe screen protector**14K/yr-9.1%14.4% conv. - **samsung galaxy s21 fe screen protector**12K/yr-7.8%14.9% conv. - **samsung galaxy s21 fe 5g screen protector**8K/yr+2.7%11.8% conv. - **galaxy s21 fe screen protector**7K/yr-7.2%16.5% conv. - **s21fe screen protector**6K/yr-12.9%17.0% conv. - **s21 fe 5g screen protector**4K/yr+5.3%10.5% conv. - **samsung s21fe screen protector**3K/yr+5.3%13.9% conv. [**All search terms **](https://flapen.com/research/us/cell-phones-accessories/s21-fe-screen-protector/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.
0%15%$17K30%$33K45%$50K60%$67K1001K10K100K1.0M Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**NEWC 3 Pack Designed for Samsung Galaxy S21 FE 5G Screen Protector Tempered Glass Case Friendly Scratch-proof Bubble Free Ultra Resistant**NEW'C**$7.21**4.5★107,371 rev](https://www.amazon.com/dp/B09ZYJB6RB) [2![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](https://m.media-amazon.com/images/I/518SiORyUIL.jpg)**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**$8.08**4.3★6,061 rev](https://www.amazon.com/dp/B09PQLVQVQ) [3**(3 Pack) Supershieldz Designed for Samsung Galaxy S21 FE 5G Tempered Glass Screen Protector Anti Scratch Bubble Free**Supershieldz**$8.13**4.6★1,337 rev](https://www.amazon.com/dp/B093JKHHS5) [4**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**$5.84**4.5★49,227 rev](https://www.amazon.com/dp/B0975W4SSR) [5![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]](https://m.media-amazon.com/images/I/41ebGZ-ho+L.jpg)**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**$7.04**4.4★1,917 rev](https://www.amazon.com/dp/B0DLJXFPV6)
**~~View all top sellers →~~**
### **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**$10.01**4,803 rev3mo ago](https://www.amazon.com/dp/B0GTYYGD5C) [![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]](https://m.media-amazon.com/images/I/41ebGZ-ho+L.jpg)**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**$7.04**1,917 rev1y ago](https://www.amazon.com/dp/B0DLJXFPV6) [**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**$6.14**166 rev2y ago](https://www.amazon.com/dp/B0CH331R23) [**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**$4.28**142 rev2y ago](https://www.amazon.com/dp/B09S5N1BSZ) [**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**$10.11**27,208 rev4y ago](https://www.amazon.com/dp/B09YLMYCDH)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**$10.01**4.5★**▲ 382%**](https://www.amazon.com/dp/B0GTYYGD5C) [**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**$4.28**4.1★**▲ 99%**](https://www.amazon.com/dp/B09S5N1BSZ) [![AACL Galaxy S21 FE Screen Protector Tempered Glass for Samsung Galaxy S21 FE 5G 6.4 Inch [Support Fingerprint Unlock][Full Screen Coverage (except edges)][9H] [3 Pack]](https://m.media-amazon.com/images/I/51qF0+M9CPL.jpg)**AACL Galaxy S21 FE Screen Protector Tempered Glass for Samsung Galaxy S21 FE 5G 6.4 Inch \[Support Fingerprint Unlock\]\[Full Screen Coverage (except edges)\]\[9H\] \[3 Pack\]**AACL**$9.61**4.5★**▲ 14%**](https://www.amazon.com/dp/B09LHPY1PY) [**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**$5.84**4.5★**▲ 13%**](https://www.amazon.com/dp/B0975W4SSR) [![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](https://m.media-amazon.com/images/I/518SiORyUIL.jpg)**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**$8.08**4.3★**— 1%**](https://www.amazon.com/dp/B09PQLVQVQ)
**~~View all trending →~~**
## **What buyers say about s21 fe screen protector**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Drop/Impact Protection**17%
*“Screen Protector”*
**Size-Overall**14%
*“Fits perfect”*
**Assembly/Installation**14%
*“Easy to place”*
**Quality-Overall**11%
*“Great quality and easy to put on the screen”*
**Advertised Vs Actual Product**9%
*“As expected”*
**Ease Of Use**7%
*“Easy to use”*
**Value For Money**6%
*“Great Value”*
**Durability**3%
*“it still looks brand new”*
**Display Resolution**3%
*“Works great, saved my screen many times”*
**Strength**2%
*“Strong coverage”*
### **What buyers complain about **
**Durability**20%
*“Breaks easily”*
**Size-Overall**17%
*“Did not fit the phone with the case”*
**Adhesion/Stickiness**10%
*“Poor adhesive”*
**Quality-Overall**9%
*“Not great quality”*
**Instructions/User Manual/Troubleshooting**7%
*“Terrible instructions”*
**Functionality-Overall**6%
*“Does not work at all”*
**Compatibility-Overall**4%
*“Not compatible”*
**Thin**4%
*“Screen protector too thin”*
**Assembly/Installation**2%
*“Broke on installation”*
**Touch Screen**1%
*“touch screen sensitivity is less than my old one. don't remember the brand”*
### **Top return reasons **
**Size-Overall**56%
**Compatibility-Overall**20%
**Adhesion/Stickiness**5%
**Functionality-Overall**5%
**Advertised Vs Actual Product**3%
**Length**2%
**Value For Money**2%
**Touch Screen**1%
**Quality-Overall**1%
**Defective Material/Parts**1%
## **Common questions**
- **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.
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