Best Selling Phone Case S21: See Top Product Rankings by Sales Volume & Market Trends

July 2026
44 Products Tracked

Looking for the most popular phone case s21 products in the market? Our report leverages real Amazon monthly sales data to identify the best-performing products and the fastest-growing opportunities within the search results for the keyword "phone case s21." Whether you're searching for winning products to launch or monitoring market trends and competitor performance, this report provides the insights you need.

Based on monthly sales analytics, our Shoppers' Top Picks highlights that ASIN B0CBP4R7BQ currently leads the phone case s21 market with 1K monthly sales, followed closely by B08P61PH7X with 500 monthly sales and B08RBXMLZ6 with 500 monthly sales. By tracking competitor sales performance and shifts in market demand, sellers can uncover emerging opportunities and make more informed product and marketing decisions.

🏆Shoppers' Top PicksAmazon
by monthly sales July 2026
for Samsung Galaxy S21 Case, with HD Screen Protector [Military Grade Drop Tested] Heavy-Duty Tough Rugged Shockproof Protective Case for S21, Black
1
B0CBP4R7BQ
$8.98·
4.3
Units/sold1K
OtterBox Defender Case for Samsung Galaxy S21+ 5G, Shockproof, Drop Proof, Ultra-Rugged, Protective Case, 4X Tested to Military Standard, Black
2
B08P61PH7X
$27.99·
4.6
Units/sold500
Crave for Galaxy S21 Case, Shockproof Protection Dual Layer Case for Samsung Galaxy S21 5G (6.2 inch) - Forest Green
3
B08RBXMLZ6
$17.99·
4.4
Units/sold500
🚀Fastest Growing
by MoM sales growth
for Samsung Galaxy S21 Case, with HD Screen Protector [Military Grade Drop Tested] Heavy-Duty Tough Rugged Shockproof Protective Case for S21, Black
#1
B0CBP4R7BQ
$8.98·
4.3
for Samsung Galaxy S21 Case, with HD Screen Protector [Military Grade Drop Tested] Heavy-Duty Tough Rugged Shockproof Protective Case for S21, Black
Units/sold
1K100.0%
Rayboen for Samsung Galaxy S21 Case, Compatible with Magsafe, Translucent Frosted Silky Durable Shockproof Magnetic Phone Cover for Samsung S21 5G with Anti-Scratch Hard PC Back, Matte Black
#2
B0FMNPWKP5
$12.99·
4.5
Rayboen for Samsung Galaxy S21 Case, Compatible with Magsafe, Translucent Frosted Silky Durable Shockproof Magnetic Phone Cover for Samsung S21 5G with Anti-Scratch Hard PC Back, Matte Black
Units/sold
400100.0%

Top Selling Phone Case S21

As of July 2026, we analyzed 44 tracked products in Amazon's "phone case s21" search results and generated the following sales chart and product rankings based on monthly sales data. The ranking below highlights the Top 10 products by estimated monthly sales. According to the latest data, these products generated between 300 and 1,000 monthly sales. B0CBP4R7BQ leads the phone case s21 market with an estimated 1,000 monthly sales, up 100.0% from the previous month.

44Products Tracked
480Top 10 Avg. Sales
$16.74Top 10 Avg. Price
4.5Top 10 Avg. Rating
🏆
for Samsung Galaxy S21 Case, with HD Screen Protector [Military Grade Drop Tested] Heavy-Duty Tough Rugged Shockproof Protective Case for S21, Black
#1
B0CBP4R7BQ

for Samsung Galaxy S21 Case, with HD Screen Protector [Military Grade Drop Tested] Heavy-Duty Tough Rugged Shockproof Protective Case for S21, Black

1,000
▲ 100.0%
Units Sold/mo
$8.98
Price
4.3
Rating
2.5K
Reviews
2
OtterBox Defender Case for Samsung Galaxy S21+ 5G, Shockproof, Drop Proof, Ultra-Rugged, Protective Case, 4X Tested to Military Standard, Black
B08P61PH7X
$27.99
4.6 (3.2K)
OtterBox Defender Case for Samsung Galaxy S21+ 5G, Shockproof, Drop Proof, Ultra-Rugged, Protective Case, 4X Tested to Military Standard, Black
500 Units Sold/mo▲ 100.0%
3
Crave for Galaxy S21 Case, Shockproof Protection Dual Layer Case for Samsung Galaxy S21 5G (6.2 inch) - Forest Green
B08RBXMLZ6
$17.99
4.4 (23.6K)
Crave for Galaxy S21 Case, Shockproof Protection Dual Layer Case for Samsung Galaxy S21 5G (6.2 inch) - Forest Green
500 Units Sold/mo▲ 100.0%
4
OtterBox Galaxy S21 FE 5G (Only) Commuter Series Case - Black, Slim & Tough, Pocket-Friendly, with Port Protection
B09888FZ1V
$24.95
4.5 (1.9K)
OtterBox Galaxy S21 FE 5G (Only) Commuter Series Case - Black, Slim & Tough, Pocket-Friendly, with Port Protection
500 Units Sold/mo▲ 4.0%
5
OtterBox Galaxy S21 Ultra 5G (Only) - Defender Series Screenless Edition Case - Lichen The Trek (Green) - Holster Clip Included - Non-Retail Packaging
B0D6GWYF6K
$28.65
4.8 (502)
OtterBox Galaxy S21 Ultra 5G (Only) - Defender Series Screenless Edition Case - Lichen The Trek (Green) - Holster Clip Included - Non-Retail Packaging
500 Units Sold/mo▲ 1.5%
10
Crave for Galaxy S21 Case, Shockproof Protection Dual Layer Case for Samsung Galaxy S21, S21 5G (6.2 inch) - Black
B08RBXK9TH
$17.99
4.4 (23.6K)
Crave for Galaxy S21 Case, Shockproof Protection Dual Layer Case for Samsung Galaxy S21, S21 5G (6.2 inch) - Black
300 Units Sold/mo▲ 100.0%
View All 44 Products & Deep InsightsGet full access to sales data, trends, and market analysis

For sellers and category managers benchmarking the phone case s21 price landscape, we segmented all 44 tracked listings in Amazon's live "phone case s21" search results across the full price spectrum, and surfaced the top 3 price tiers by share below to highlight where competition concentrates and where pricing gaps exist.

Leading the distribution, the $10.00 ~ $20.00 band is the category's best phone case s21 price zone, absorbing 55% of the assortment (108 products) — this is where listing density is highest and where new entrants face the steepest competition for share-of-voice. Use the tier breakdown below to identify the top-ranking ASIN, monthly sales velocity, and rating profile within each band — essential inputs for pricing strategy, sourcing decisions, and competitive benchmarking in the phone case s21 category.

Top 3 Price Tiers

$10.00 ~ $20.00 is the most competitive price tier, containing 55% of tracked products.

Sweet Spot
$10.00 ~ $20.00
Tier 1
55%
108 products

Top products in this price tier

#1
B0CBP4R7BQ
$8.98
1k Units Sold/mo
Unlock Top Performers
#2
$0.00 ~ $10.00
Tier 2
26%
52 products
$20.00 ~ $50.00
Tier 3
19%
37 products
$50.00 ~ $100.00
0%
Unlock to view all price tier distributions and their ASIN sales contributions

"Phone case s21" Search Volume and Market Trends on Amazon

Amazon keyword search volume data for "phone case s21" in the US marketplace. This report provides insights into keyword search volume, Amazon search trends, competition levels, and conversion efficiency for sellers and brands.

During the week of 2026-06-28 to 2026-07-04, the Amazon USweekly search volume for "phone case s21" was approximately 122 searches. The keyword currently holds an Amazon Search Frequency Rank (SFR) of #1,375,570, climbing 13,945 positions from the previous week. Additionally, the top 3 products for this keyword capture 22% of the total click share and 23.1% of the conversion share, indicating the level of market concentration.

Amazon Search Term
Weekly

phone case s21

ASINSIGHT
Search Frequency Rank
1,375,570
13,945
Search Volume
122
0.8%
Top 3 Click Share
22%
Top 3 Conv. Share
23.1%

Search Volume Trend

Past 3 Years
Past 4 Months
Recent 8 months
Weekly Search Volume
122
View full trends for the past 3 years
JulAugSepOctNovDecJanFebMarAprMayJun
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