s21 ultra screen protector
Worth a lookShows searches that convert (12.5% search→purchase), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Conversion
Incredible12.5%search→purchase rate — share of searches ending in a sale
Quality gap
Incredible4.0★avg incumbent rating — lower means beatable quality
Returns
Good2.0%return rate — above 5% kills the launch gate
Brand share
Good63%top-5 brand share — brands hold most of the demand
Price range
Good$7.12–$25.92cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Good$338K$338K/yr · 245K searches
Avg price
Okay$11.02avg listing price — sweet spot $15–$100
Competition
Okay63%top-5 click share — leaders hold, buyers still browse
Growth
Bad-7.0%90-day search growth — must beat 0% to launch
Review moat
Bad8,890.05avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United States niche tracking, s21 ultra screen protector is a $338K/yr Amazon United States market (245K searches/yr). The top 5 brands hold 63% of demand. Demand peaks in Jul–Aug. Verdict: Worth a look — 56/100.
Data updated Jul 6, 2026 · scored weekly · How we score niches
s21 ultra screen protector market data
- Units sold / yr
- 30K–40K
- avg 1,250–1,500/product
- Revenue / yr
- $331K–$441K
- units × avg price
- Conversion rate
- 12.5%
- Avg BSR
- #1,221
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 85%
- Out of stock
- 33.7%
- Avg brand age
- 33 months
- Avg seller age
- 195 days
Competition & brand share
The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.Brands
18 flat
Sellers
24
Top-5 brand share
63%
Top 20: 100%
Top-5 click share
63%
Top 20: 100%
Open market
32%
- Samcorn30%
- LK16%
- WILLONE7%
- MAGIC JOHN6%
- QoeCycth5%
- Supershieldz5%
Demand & seasonality
Weekly Amazon search volume, last 101 weeks — -7.0% search growth over the last 90 days.Peak months: Jul, Aug · busiest ÷ quietest = 1.9×
Top s21 ultra screen protector search terms
- s21 ultra screen protector91K/yr
- samsung galaxy s21 ultra screen protector42K/yr
- galaxy s21 ultra screen protector35K/yr
- samsung s21 ultra screen protector34K/yr
- galaxy s21 ultra 5g screen protector10K/yr
- screen protector s21 ultra9K/yr
- screen protector samsung s21 ultra7K/yr
- samsung galaxy s21 ultra 5g screen protector6K/yr
- screen protector galaxy s21 ultra4K/yr
- s21 ultra 5g screen protector4K/yr
Top s21 ultra 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.
All 20 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
3 Pack Galaxy S21 Ultra Screen Protector HD Clear Tempered Glass Fingerprint Unlock 3D Curved Scratch Resistant No Bubble for Samsung Galaxy S21 Ultra 5G Glass Screen Protector
Samcorn$10.154.3★8,950 rev
![LK 3 Pack for Samsung Galaxy S21 Ultra Screen Protector [Not Glass] New Version for Support Fingerprint Unlock Bubble Free with Easy Installation Tool 3D Curved Max Coverage for S21 Ultra](https://m.media-amazon.com/images/I/51No11RSsNL.jpg)
LK 3 Pack for Samsung Galaxy S21 Ultra Screen Protector [Not Glass] New Version for Support Fingerprint Unlock Bubble Free with Easy Installation Tool 3D Curved Max Coverage for S21 Ultra
LK$9.474.3★9,696 rev
WILLONE 2+2 Pack for Samsung Galaxy S21 Ultra 5G Screen Protector (6.80 inches) with Camera Lens Protector Case Friendly Tempered Glass Film Fingerprint Unlock HD Clear
WILLONE$10.044.6★30,442 rev
![MAGIC JOHN 2 Pack for Samsung Galaxy S21 Ultra Screen Protector [Ceramic Film Material Not Glass] 6.8 inch [100% Fingerprint ID Compatible] Easy Installation Tray Shock-Resistant 3D Curved Bubble](https://m.media-amazon.com/images/I/51OrGZXXb8L.jpg)
MAGIC JOHN 2 Pack for Samsung Galaxy S21 Ultra Screen Protector [Ceramic Film Material Not Glass] 6.8 inch [100% Fingerprint ID Compatible] Easy Installation Tray Shock-Resistant 3D Curved Bubble
MAGIC JOHN$16.414.0★960 rev
3 Pack Curved Tempered Glass Screen Protector Applicable for Samsung Galaxy S21 Ultra 5G 6.8inch Support Fingerprint ID Friendly Tempered Glass Screen Protective HD Clear Scratch Resistant Suitable
QoeCycth$8.043.6★3,114 rev
Newest
by launch date
Didisky 3+2 Pack Screen Protector for Samsung Galaxy S21 Ultra Tempered Glass and Camera Lens Protector 3D Curved Full Coverage Easy to Use Bubble Free 9H Scratch-Resistant HD
Didisky$9.986,184 rev
![[2 Pack] Galaxy S21 Ultra Privacy Screen Protector 2 Pack Camera Lens Protector Tempered 9H Hardness Easy Install Anti-Scratch Anti-Fingerprint Anti-Spy Screen Protector for Galaxy S21 Ultra 6.8Inch](https://m.media-amazon.com/images/I/41BpeXiFUIL.jpg)
[2 Pack] Galaxy S21 Ultra Privacy Screen Protector 2 Pack Camera Lens Protector Tempered 9H Hardness Easy Install Anti-Scratch Anti-Fingerprint Anti-Spy Screen Protector for Galaxy S21 Ultra 6.8Inch
AYCFING$12.378 rev
![[2+2 Pack] Galaxy S21 Ultra Screen Protector and Camera Lens Protector 9H Hardness HD Clear Full Coverage Case Friendly Easy Installation Bubble Free For Samsung Galaxy S21 Ultra -6.8 Inch](https://m.media-amazon.com/images/I/41aMTgBz7GL.jpg)
[2+2 Pack] Galaxy S21 Ultra Screen Protector and Camera Lens Protector 9H Hardness HD Clear Full Coverage Case Friendly Easy Installation Bubble Free For Samsung Galaxy S21 Ultra -6.8 Inch
SURF CUZ$11.888 rev
Didisky 2-Pack Tempered Glass Screen Protector for Samsung Galaxy S21 Ultra Supports Ultrasonic Fingerprint with Easy Installation Frame 3D Curved Full Coverage 9H Hardness Case Friendly HD Clear
Didisky$25.923,457 rev
Didisky 3+2 Pack Screen Protector for Samsung Galaxy S21 Ultra Tempered Glass and Camera Lens Protector HD 3D Curved Full Coverage Easy to Use Bubble Free 9H Scratch-Resistant
Didisky$9.8710 rev
Trending
90-day click momentum[2+2 Pack] Galaxy S21 Ultra Screen Protector and Camera Lens Protector 9H Hardness HD Clear Full Coverage Case Friendly Easy Installation Bubble Free For Samsung Galaxy S21 Ultra -6.8 Inch
SURF CUZ$11.882.6★
MoShieldwish 3 Pack for Samsung Galaxy S21 Ultra Screen Protector 9H Tempered Glass Full Coverage Case Friendly HD Clear Anti-Scratch Fingerprint Compatible Bubble-Free for S21 Ultra 5G 6.8
MoShieldwish$9.974.4★
[2 Pack] Galaxy S21 Ultra Privacy Screen Protector 2 Pack Camera Lens Protector Tempered 9H Hardness Easy Install Anti-Scratch Anti-Fingerprint Anti-Spy Screen Protector for Galaxy S21 Ultra 6.8Inch
AYCFING$12.373.2★
Didisky 3+2 Pack Screen Protector for Samsung Galaxy S21 Ultra Tempered Glass and Camera Lens Protector HD 3D Curved Full Coverage Easy to Use Bubble Free 9H Scratch-Resistant
Didisky$9.872.6★
WILLONE 2+2 Pack for Samsung Galaxy S21 Ultra 5G Screen Protector (6.80 inches) with Camera Lens Protector Case Friendly Tempered Glass Film Fingerprint Unlock HD Clear
WILLONE$10.044.6★
What buyers say about s21 ultra screen protector
What buyers praise and complain about, mined from review topics.What buyers love
“Easy to put on”
“PROTECTED MY PHONE”
“easy to use”
“Good quality and good fitment easy to clean and no issues with touch”
“Fits perfectly”
“Decent for price”
“Works great”
“Just as described”
“Durable”
“HOWEVER THIS SCREEN SAVER IS THE EASIEST/SEEMLESS I HAVE EVER USED”
What buyers complain about
“Not thrilled with the quality since it cracked on install”
“Didnt stick”
“Does not work as expected”
“Touchscreen would not work”
“Easily breakable”
“Installation is complicated”
“Didn't go on easy”
“This was a waste of money”
“These protectors are THICK”
“is so flimsy”
Top return reasons
Common questions
- Is s21 ultra screen protector profitable to sell on Amazon United States?
- The niche generates $338K/yr across 20 tracked products. 1 of 8 products launched in the last 360 days are still selling. 90-day search growth is -7.0%. Flapen's verdict: Worth a look (56/100).
- How competitive is the s21 ultra screen protector niche?
- 18 brands and 24 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 63% of demand.
- What do buyers complain about in s21 ultra screen protector?
- Top complaints mined from reviews: Quality-Overall, Adhesion/Stickiness, Functionality-Overall. The return rate is 2.0%.
- When does demand for s21 ultra screen protector peak?
- Demand peaks in Jul–Aug; the busiest month runs 1.9× the quietest.
- What does it cost to enter the s21 ultra screen protector niche?
- Listings span $7.12–$25.92; the average listing price is $11.02 (sweet spot $15–$100). The average incumbent carries 8,890 reviews — the moat a new listing must climb.