---
title: "S21 Plus Screen Protector — $134K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/cell-phones-accessories/s21-plus-screen-protector"
last_updated: "2026-08-09T10:40:24.083Z"
locale: en
meta:
description: "Niche score 44/100 · $134K/yr market · 90K searches/yr · $9.55 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 44/100 · $134K/yr market · 90K searches/yr · $9.55 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "S21 Plus Screen Protector — $134K/yr Amazon US Niche (2026) - Flapen"
---
# **s21 plus screen protector**
**Skip it**
Prices mostly outside the sweet spot ($4.39–$15.63) — this niche doesn't clear our bar today.
Market size 30Growth 24Conversion 97Competition 23Returns 70Price range 6Avg price 30Brand share 52Review moat 19Quality gap 80
**Conversion**
**Incredible****15.5%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Returns**
**Good****2.2%**
return rate — above 5% kills the launch gate
**Brand share**
**Good****74%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****$134K**
$134K/yr · 90K searches
**Avg price**
**Okay****$9.55**
avg listing price — sweet spot $15–$100
**Growth**
**Bad****-2.5%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****73%**
top-5 click share — a locked-up shelf
**Review moat**
**Bad****14,159.89**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Bad****$4.39–$15.63**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
According to Flapen's Amazon United States niche tracking, s21 plus screen protector is a $134K/yr Amazon United States market (90K searches/yr). The top 5 brands hold 74% of demand. Demand peaks in Jul–Aug. Verdict: Skip it — 44/100.
Data updated Jul 6, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **s21 plus screen protector market data**
- **Units sold / yr**
- **13K–15K**
- avg 1,500–2,000/product
- **Revenue / yr**
- **$119K–$143K**
- units × avg price
- **Conversion rate**
- **15.5%**
- **Avg BSR**
- **#1,115**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **72%**
- **Out of stock**
- **1.0%**
- **Avg brand age**
- **33 months**
- **Avg seller age**
- **188 days**
## **Competition & brand share**
The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**17 **▲rising
**Sellers**
**22**
**Top-5 brand share**
**74%**
Top 20: 100%
**Top-5 click share**
**73%**
Top 20: 100%
**Open market**
**23%**
- JETech17% - UniqueMe17% - NEW'C17% - iCsapr13% - Supershieldz10% - WILLONE4%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -2.5% search growth over the last 90 days.
5K4K seasonSepDecMarJunAugNovMarMay
Peak months: Jul, Aug · busiest ÷ quietest = 1.9×
[**Open Trend **](https://flapen.com/research/us/cell-phones-accessories/s21-plus-screen-protector/trend)
## **Top s21 plus screen protector search terms**
- **s21 plus screen protector**22K/yr-11.0%12.8% conv. - **samsung galaxy s21 plus screen protector**13K/yr+2.2%11.2% conv. - **galaxy s21 plus screen protector**12K/yr+4.2%13.2% conv. - **samsung s21 plus screen protector**13K/yr-11.7%12.4% conv. - **s21+ screen protector**11K/yr-3.4%15.0% conv. - **galaxy s21+ screen protector**6K/yr+32.8%14.7% conv. - **samsung s21+ screen protector**5K/yr+0.6%16.3% conv. - **samsung galaxy s21+ screen protector**4K/yr+7.7%14.4% conv. - **screen protector s21 plus**3K/yr-31.3%15.2% conv. [**All search terms **](https://flapen.com/research/us/cell-phones-accessories/s21-plus-screen-protector/search-terms)
## **Top s21 plus 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%5%$7K10%$13K15%$20K20%$27K1101001K10K100K1.0M Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 18 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**JETech Screen Protector for Samsung Galaxy S21 Plus 6.7-Inch with Camera Lens Protector Easy Installation Tool Tempered Glass Film HD Clear 2-Pack Each**JETech**$10.04**4.4★27,208 rev](https://www.amazon.com/dp/B0BM72K1D9) [2**NEWC 3 Pack Designed for Samsung Galaxy S21 Plus / S21+ 5G (6.7) Screen Protector Tempered Glass Fingerprint Resistant 9H Hardness 0.33mm Ultra Transparent Ultra Resistant**NEW'C**$7.25**4.5★107,371 rev](https://www.amazon.com/dp/B094PF3DN3) [3![UniqueMe for Samsung Galaxy S21 Plus Screen Protector 9H Hardness Fingerprint Unlock Samsung S21+ Tempered Glass + Camera Lens Protector with Easy installation Frame - 6.7 inch [ 2+2 Pack ]](https://m.media-amazon.com/images/I/51AK1cGRWjL.jpg)**UniqueMe for Samsung Galaxy S21 Plus Screen Protector 9H Hardness Fingerprint Unlock Samsung S21+ Tempered Glass + Camera Lens Protector with Easy installation Frame - 6.7 inch \[ 2+2 Pack \]**UniqueMe**$12.83**4.3★32,704 rev](https://www.amazon.com/dp/B08R8YC4N3) [4![iCsapr 4 Pack Glass Screen Protector Compatible for Samsung Galaxy S21 Plus 5G / S21+ / SM-g996u [9H Hardness]-HD Screen Tempered Glass Scratch Resistant Easy Install [Case Friendly]](https://m.media-amazon.com/images/I/41fav0k5ACL.jpg)**iCsapr 4 Pack Glass Screen Protector Compatible for Samsung Galaxy S21 Plus 5G / S21+ / SM-g996u \[9H Hardness\]-HD Screen Tempered Glass Scratch Resistant Easy Install \[Case Friendly\]**iCsapr**$6.72**4.4★1,917 rev](https://www.amazon.com/dp/B0DLJRQTGL) [5**Supershieldz (3 Pack) Designed for Samsung Galaxy (S21 Plus 5G) Tempered Glass Screen Protector Anti Scratch Bubble Free**Supershieldz**$8.96**4.3★5,658 rev](https://www.amazon.com/dp/B08RZBTN9K)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**2 Pack For Galaxy S21 Plus Privacy Screen Protector With 2 Pack Camera Lens Protector Anti Spy Private Tempered Glass Film 9H Hardness Anti Fingerprint Scratch Resistant Bubble Free Easy To Instav**SunColorful**$11.65**194 rev2mo ago](https://www.amazon.com/dp/B0GWLKYDC8) [**BIGFLYANTS 2 Pack Privacy Screen Protector for Samsung Galaxy S21 Plus with 2 Pack Camera Lens Protector Anti-Spy Tempered Glass Film Full Coverage Anti-Scratch Bubble Free Easy Installation**BIGFLYANTS**$6.92**3 rev3mo ago](https://www.amazon.com/dp/B0GS7VNYSZ) [**WILLONE 2+2 Pack for Samsung Galaxy S21 Plus Screen Protector (6.70 inches) with Camera Lens Protector Case Friendly Tempered Glass Film Fingerprint Unlock HD Clear**WILLONE**$10.08**30,442 rev7mo ago](https://www.amazon.com/dp/B0GKTYVG7P) [**2+2 Pack for S21 Plus Screen Protector with Camera Lens Protector 2.5D Full Coverage 9H Tempered Glass Scratch Resistant Touch Sensitive Bubble-Free Easy Installation (6.7 Inch)**Geviaho**$9.61**11 rev9mo ago](https://www.amazon.com/dp/B0FRXKHX7X) [**TENOC Screen Protector for Samsung Galaxy S21 Plus 2-Pack Clear 9H Tempered Glass Film Cover Sensor Protection Case Friendly for 6.7 inch**TENOC**$4.39**93 rev11mo ago](https://www.amazon.com/dp/B0FJ26LMNG)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**BIGFLYANTS 2 Pack Privacy Screen Protector for Samsung Galaxy S21 Plus with 2 Pack Camera Lens Protector Anti-Spy Tempered Glass Film Full Coverage Anti-Scratch Bubble Free Easy Installation**BIGFLYANTS**$6.92**4.2★**▲ 377%**](https://www.amazon.com/dp/B0GS7VNYSZ) [**2 Pack For Galaxy S21 Plus Privacy Screen Protector With 2 Pack Camera Lens Protector Anti Spy Private Tempered Glass Film 9H Hardness Anti Fingerprint Scratch Resistant Bubble Free Easy To Instav**SunColorful**$11.65**4.3★**▲ 365%**](https://www.amazon.com/dp/B0GWLKYDC8) [**WILLONE 2+2 Pack for Samsung Galaxy S21 Plus Screen Protector (6.70 inches) with Camera Lens Protector Case Friendly Tempered Glass Film Fingerprint Unlock HD Clear**WILLONE**$10.08**4.6★**▲ 354%**](https://www.amazon.com/dp/B0GKTYVG7P) [**2+2 Pack for S21 Plus Screen Protector with Camera Lens Protector 2.5D Full Coverage 9H Tempered Glass Scratch Resistant Touch Sensitive Bubble-Free Easy Installation (6.7 Inch)**Geviaho**$9.61**3.0★**▲ 238%**](https://www.amazon.com/dp/B0FRXKHX7X) [**JETech Screen Protector for Samsung Galaxy S21 Plus 6.7-Inch with Camera Lens Protector Easy Installation Tool Tempered Glass Film HD Clear 2-Pack Each**JETech**$10.04**4.4★**▲ 86%**](https://www.amazon.com/dp/B0BM72K1D9)
**~~View all trending →~~**
## **What buyers say about s21 plus screen protector**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**19%
*“Good fit”*
**Quality-Overall**13%
*“Excellent product and good it comes with 2”*
**Drop/Impact Protection**12%
*“Great protectio”*
**Assembly/Installation**11%
*“Easy to install”*
**Advertised Vs Actual Product**10%
*“As advertised”*
**Value For Money**7%
*“Worth it”*
**Security**4%
*“It works as far as privacy goes”*
**Compatibility-Overall**4%
*“biometrics compatible”*
**Durability**3%
*“Clear and durable”*
**Ease Of Use**3%
*“Easy to use”*
### **What buyers complain about **
**Compatibility-Overall**13%
*“NOT FINGERPRINT COMPATIBLE”*
**Functionality-Overall**12%
*“It didn't work for me”*
**Size-Overall**11%
*“the screen protector was too small”*
**Quality-Overall**9%
*“Very bad quality for the phone not fingerprint work”*
**Adhesion/Stickiness**7%
*“Don't stick on the screen”*
**Value For Money**6%
*“Don't waist money”*
**Touch/Button Controls**5%
*“Severely affects touch screen sensitivity”*
**Durability**5%
*“I broke one just by handling it”*
**Display Brightness**3%
*“Really brings down the brightness of the phone because its tinted or something”*
**Advertised Vs Actual Product**3%
*“They lied on the description”*
### **Top return reasons **
**Size-Overall**57%
**Functionality-Overall**14%
**Compatibility-Overall**11%
**Adhesion/Stickiness**4%
**Advertised Vs Actual Product**3%
**Touch Screen**2%
**Defective Material/Parts**2%
**Display-Overall**1%
**Value For Money**1%
**Length**1%
## **Common questions**
- **Is s21 plus screen protector profitable to sell on Amazon United States?**
- The niche generates $134K/yr across 18 tracked products. 0 of 5 products launched in the last 360 days are still selling. 90-day search growth is -2.5%. Flapen's verdict: Skip it (44/100).
- **How competitive is the s21 plus screen protector niche?**
- 17 brands and 22 sellers compete. The top 5 products take 73% of clicks and top 5 brands hold 74% of demand.
- **What do buyers complain about in s21 plus screen protector?**
- Top complaints mined from reviews: Compatibility-Overall, Functionality-Overall, Size-Overall. The return rate is 2.2%.
- **When does demand for s21 plus screen protector peak?**
- Demand peaks in Jul–Aug; the busiest month runs 1.9× the quietest.
- **What does it cost to enter the s21 plus screen protector niche?**
- Listings span $4.39–$15.63; the average listing price is $9.55 (sweet spot $15–$100). The average incumbent carries 14,160 reviews — the moat a new listing must climb.
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