Best Galaxy S21 Ultra Cases (Oct. 2026) - Rated by CherryPicks' Experts

At a Glance: Our Top Picks

Top 1

LeYi for S21-Ultra Phone Case: Samsung Galaxy S21 Ultra Case [MagSafe Fit] Ca...

9.8
CPR Score
Top 2

Rayboen for Samsung Galaxy S21 Ultra Case Magnetic, [Compatible with Magsafe]...

9.7
CPR Score
Top 3

OWKEY for Samsung Galaxy S21 Ultra Case 6.8", Built-in Invisible Kickstand Co...

9.7
CPR Score
Tips

We researched and analyzed dozens of Galaxy S21 Ultra Cases reviews from different Cases, Holsters & Clips brands, including Spigen, OtterBox, LeYi, FNTCASE, i-Blason, Crave, Poetic, SunStory, ONOLA, imluckies And Rayboen. We've selected 30 best Galaxy S21 Ultra Cases in the following ranking by considering price, product features, easy to use and so on.

* CherryPicks.Reviews is reader-supported, Our editor review, and recommend the best products based on extensive data analysis, if you click on the product links, we may earn a commission through qualifying products purchased.

The Best Galaxy S21 Ultra Cases Rated by CherryPicks

Market Overview
Galaxy S21 Ultra Cases Reviewed
  • Reviews Analyzed: 176,654 Items
  • CPR Avg. Rating: 8.5 / 10
30 Products Evaluated
  • Highest Price: $34.95
  • Lowest Price: $4.10
  • Avg. Price: $18.18
Price Disclaimer

Top 30 Galaxy S21 Ultra Cases on Amazon (Verified You can Buy)

LeYi for S21-Ultra Phone Case: Samsung Galaxy S21 Ultra Case [MagSafe Fit] Camera Bump Protection, Magnetic Thin Matte Translucent Samsung S 21 Ultra Case Android Mobile Unlocked S21Ultra 5G, Black

LeYi
6.68 x 3.05 x 0.37 inches

Ratings for LeYi (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Aomax Tech 1,507 ❌ ❌ ❌

Features

𝐍𝐨𝐭 𝐅𝐢𝐭 𝐒𝟐𝟏/ 𝐒𝟐𝟏-𝐏𝐥𝐮𝐬/ 𝐒𝟐𝟏-𝐅𝐄!!!
Precision Fit: This case is precisely engineered exclusively for the Samsung Galaxy 𝐒𝟐𝟏-𝐔𝐥𝐭𝐫𝐚 5G. It offers a perfect millimeter-accurate fit, seamlessly matching your device's contours for exceptional protection
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Top 2

Rayboen for Samsung Galaxy S21 Ultra Case Magnetic, [Compatible with Magsafe] Protective Slim Fit Skin Feel Phone Cover for S21 Ultra 5G with Translucent Hard Back & Soft Edge, Matte Black

Rayboen
Samsung Galaxy S21 Ultra
6.65 x 3.15 x 0.55 inches

Ratings for Rayboen (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Rayboen Official - ❌ ❌ ❌

Features

Translucent Frosted Back: Snap and go! Rayboen's excellent wear and scratch-resistant S21 Ultra case features a semilucent matte PC back panel, presenting a low-key and elegant aesthetic. Its frosted texture gives this phone case S21 Ultra, a delicate and skin-friendly touch, bringing practical effects of anti-fingerprint and anti-oil for your phone. The opaque rubbery bumper and translucent back pair nicely together, giving your S21 Ultra 5G a very nice look
Super Magnetic Force: Convenient and Practical! With 38 pieces of N52 magnets finely tuned for optimal alignment and efficiency, our Galaxy S21 Ultra case can be firmly attached to magnetic products like a charger, power bank, phone holder, and car mount; you can experience fast charging speed and a strong and secure connection However, it can't stick to metal surfaces like fridges, steel, etc
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Top 3

OWKEY for Samsung Galaxy S21 Ultra Case 6.8", Built-in Invisible Kickstand Compatible with MagSafe, Magnetic S21 Ultra Phone Case Shockproof Translucent Matte Slim Bumper Cover, Black

OWKEY
7.0866 x 3.1496 x 0.4724 inches

Ratings for OWKEY (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Taiyanstore - ❌ ❌ ❌

Features

【Super Magnetic Attraction】Compatible with MagSafe chargers and other Qi wireless chargers without affecting the signal. Thanks to its powerful built-in magnet, the S21 ultra phone case offers excellent absorption. Simply place your phone on the charger without removing the case. The perfectly aligned magnetic attraction makes wireless charging faster and more stable. This magnetic case is designed exclusively for the Samsung S21 ultra 6.8" .
【Built-in Adjustable Invisible Kickstand】The Samsung Galaxy S21 ultra case's zinc alloy camera ring stand has been tested to ensure smoother rotation over 3,500 times and is more durable over a long period, freeing your hands and providing the best viewing experience for watching videos, meetings, or FaceTime calls. The adjustable design gives you an excellent viewing angle at all times.
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OtterBox Galaxy S21 Ultra 5G (Only) - Defender Series Screenless Edition Case - Blue Suede Shoes - Case Only - Non-Retail Packaging

OtterBox
27-54580-5106-CO
7.0 x 4.0 x 2.0 Inches

Ratings for OtterBox (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
alwayz-on-sale 385 ❌ ❌ ❌

Features

Compatible with Samsung Galaxy S21 Ultra 5G (Only - Not Compatible with Galaxy S21/S21 Plus/S21 FE)
Multi-layer defense from the solid inner shell and resilient outer slipcover with port covers that block dirt, dust and lint from getting into jacks and ports
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Top 5

Teayoha for Samsung Galaxy S21 Ultra Case,[Compatible with Magsafe] [Military Grade Drop Tested] Shockproof Magnetic Tough Rugged Protective Phone Case -6.8 inch (Black)

Teayoha
S21U
6.4961 x 3.2283 x 0.5906 Inches
0.1102 pounds

Ratings for Teayoha (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Teayoha - ❌ ❌ ❌

Features

[Compatible Mode] Specially designed for Samsung Galaxy S21 Ultra 5G (6.8 inch)
[Strong Magnetic Attraction] The galaxy s21 ultra case have built-in 38 super N52 magnets. Its magnetic attraction reaches 2800 gf, which is almost 7X stronger than ordinary, therefore it won't fall off no matter how it shakes when you are charging. The case only compatible with magsafe wireless chargers.
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LeYi for Samsung Galaxy S21-Ultra Case: Silde Camera Cover+Kickstand, Black

LeYi
0.5906 x 4.7244 x 7.874 Inches

Ratings for LeYi (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Aomax Tech 1,507 ❌ ❌ ❌

Features

Compatible With: Specially designed for Samsung S21 Ultra.
Military Grade Drop Protection: Double combination of soft TPU frame and anti-scratch hard PC back achieves military grade drop protection. Perfectly passed thousands of high altitude drop tests to ensure forceful protection after an accidental drop
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Top 7

FUXICASE Case for Samsung Galaxy S21 Ultra, Silicone Shockproof Cover Women

FUXICASE
GJ JH SAM S21 Ultra SS073

Ratings for FUXICASE (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
FUXICASE Direct - ❌ ❌ ❌

Features

Compatible Models:FUXICASE phone case is specifically designed for Samsung Galaxy S21 Ultra. Please confirm your phone model before purchasing to ensure perfect compatibility and fit.
Fashion-Forward Design:The Galaxy S21 Ultra case features an elegant pattern design with floral, bow, heart, cherry, rainbow, starfish, and milk motifs. It adds a unique, stylish and girly charm to your phone while providing resistance against fading and scratches. Specially crafted for women who appreciate fashionable and cute phone accessories.
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Top 8

OtterBox Symmetry Series Case for Samsung Galaxy S21 Ultra 5G (ONLY) Non-Retail Packaging - Stardust

OtterBox
OTR77-81953
4.2087 x 0.748 x 7.9882 inches

Ratings for OtterBox (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
prune 201 ❌ ❌ ❌
Home and Above 6,795 ❌ ❌ ❌

Features

Compatible with Samsung Galaxy S21 Ultra 5G (Not Compatible with S21, FE, Plus models)
Thin profile slips easily into tight pockets. One-piece design pops on and off in a flash
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Top 9

OtterBox Galaxy S21 Ultra 5G (Only) - Defender Series Screenless Edition Case - Black - Rugged & Durable - with Port Protection - Holster Clip Included - Non-Retail Packaging

OtterBox
77-81887-NR
7.0 x 4.0 x 0.7 inches

Ratings for OtterBox (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
alwayz-on-sale 385 ❌ ❌ ❌

Features

Compatible with Samsung Galaxy S21 Ultra 5G (Only - Not Compatible with Galaxy S21/S21 Plus/S21 FE)
Multi-layer defense from the solid inner shell and resilient outer slipcover with port covers that block dirt, dust and lint from getting into jacks and ports
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Top 10

MXX Case Compatible with Galaxy S21 Ultra Case, 3-Layer Super Full Heavy Duty Body Bumper Cover/Shock Protection/Dust Proof, Designed for Samsung Galaxy S21 Ultra 5G 6.8 Inch 2021 (Black)

MXX
MXX-S21ULT5G
6.0 x 3.0 x 0.5 Inches
0.125 Pounds

Ratings for MXX (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
MXX Accessories Inc - ❌ ❌ ❌

Features

Compatibility: Compatible with samsung Galaxy S21 Ultra case 5G (2021) All version carriers (AT&T, Verizon, Sprint, T-Mobile, International)
Durability: Samsung S21 Ultra case features a triple-layer defense with an inner shell and rugged outer cover to protect against drops, scratches, bumps, and shocks. The unique detachable design offers 3-in-1 protection, including shock resistance, dust protection, and scratch prevention. Provides reliable protection from impacts, withstanding drops from up to 14 feet on flat ground
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FNTCASE for Samsung Galaxy S21-Ultra Case: Military Grade Rugged Cell Phone Cover with Kickstand | Shockproof TPU Protection Bumper Matte Textured Design for Samsung S21 Ultra Cases 6.8 inches (Black)

FNTCASE
Samsung Galaxy S21 Ultra 5G
3.72 x 1.36 x 7.13 inches

Ratings for FNTCASE (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
SOiOS-US - ❌ ❌ ❌

Features

Military Grade Dual Protection: Only for Samsung S21 Ultra 6.8 inch, this Galaxy S21 Ultra case Case has a Dual-layer sturdy protection structure, with built-In Kickstand and built-in screen protector. Military-grade drop tested, Drop proof, Impact resistant, Scratch proof mobile phone case
Built-in Kickstand: This Samsung Galaxy S21 Ultra case phone case with a stand works perfectly both in vertical and horizontal positions. Convenient for reading, watching movies, playing games, browsing the web, and face-to-face chatting with friends.Provides hands-free portrait and landscape viewing angles
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Top 12

for Samsung Galaxy S21 Ultra Case: Dual Layer Protective Heavy Duty Cell Phone Cover Shockproof Rugged with Screen Protector - Military Protection Bumper Tough - Samsung Galaxy S21 Ultra, Dark Green

MDCN
Samsung Galaxy S21 Ultra 5G
6.2 x 3.2 x 0.51 inches
0.17 Pounds

Ratings for MDCN (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Jinxian US - ❌ ❌ ❌

Features

👍 Two Piece Durable Hybrid Covers: soft TPU inner cases - shock absorbing; hard PC back outer shell - strong impact resistant. Double guard protection with reinforced corner, specially designed to protect your new mobile.
👍 Upgraded Slip Proof Texture Design on Side and Back: sturdy armored phonecase with Antiskid stripe prevent your smartphone from unexpected drop. Also, simple classic & stylish.
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Top 13

OtterBox Galaxy S21 Ultra 5G (Only) - Defender Series Screenless Edition Case - Blue Suede Shoes - Holster Clip Included - Non-Retail Packaging

OtterBox
27-54580-5106
7.0 x 4.0 x 2.0 Inches

Ratings for OtterBox (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
alwayz-on-sale 385 ❌ ❌ ❌
Amazon Resale - ❌ ❌ ❌

Features

Compatible with Samsung Galaxy S21 Ultra 5G (Only - Not Compatible with Galaxy S21/S21 Plus/S21 FE)
Multi-layer defense from the solid inner shell and resilient outer slipcover with port covers that block dirt, dust and lint from getting into jacks and ports
Show More
Top 14

HOOMIL Case for Samsung Galaxy S21 Ultra 6.8-Inch, Non-Yellowing, Drop Protection, Anti-Scratch Transparent Hard Back Phone Cover - Crystal Clear

HOOMIL
HN031GM
6.6535 x 3.1496 x 0.4331 inches
0.1102 pounds

Ratings for HOOMIL (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
HOOMIL Official Store - ❌ ❌ ❌
HOOMIL Direct - ❌ ❌ ❌

Features

Innovative Anti-Yellowing technology keeps your case crystal clear over time
Military-grade drop protection via Built-in 4 corner Airbags
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Top 15

imluckies for Samsung Galaxy S21 Ultra Case with Camera Cover, Hard PC Back & Soft Bumper, Protective & Slim Fit, Camera Protection Case for Samsung Galaxy S21 Ultra 6.8"-Black

imluckies
SM-G998
6.72 x 3.18 x 0.55 Inches
0.0959 pounds

Ratings for imluckies (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
imluckies Direct - ✅ ✅ ✅

Features

✔【Compatible with】 Specially designed for Samsung Galaxy S21 Ultra 5g 2021 only, Not fit for other models.
✔【Camera Lens Slide Design】Slide Lens Cover to protect the camera from Anti-hacking voyeur, preventing from the disclosure of our privacy, and the 0.2 mm raised bezel can protect the phone lens from damage.
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Top 16

OtterBox Galaxy S21 Ultra 5G (Only) - Defender Series Screenless Edition Case - Lichen The Trek (Green) - Holster Clip Included - Non-Retail Packaging

OtterBox
27-54580-5778
7.0 x 4.0 x 2.0 inches

Ratings for OtterBox (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
alwayz-on-sale 385 ❌ ❌ ❌

Features

Compatible with Samsung Galaxy S21 Ultra 5G (Only - Not Compatible with Galaxy S21/S21 Plus/S21 FE)
Multi-layer defense from the solid inner shell and resilient outer slipcover with port covers that block dirt, dust and lint from getting into jacks and ports
Show More
Top 17

i-Blason Glitter Case for Samsung Galaxy S21 Ultra (6.8 Inch) 5G Mobile Phone Case Bumper Case Shiny Protective Cover [Cosmo] Without Screen Protector 2021 Edition (Marble)

i-Blason
Galaxy-S21Ultra-Cosmo-Marble1
3.5433 x 6.4961 x 0.5906 inches
0.1543 pounds
  • Unknown: Dutch
  • Unknown: English
  • Unknown: Flemish

Ratings for i-Blason (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Demi Cases 5,766 ❌ ❌ ❌

Features

Dual Layer Protection features a shock absorbent TPU bumper and PC back plate
Fashionable slim case features a glitter design that complements your personal style without overcrowding your pockets or bags.
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Top 18

Oterkin for Samsung Galaxy S21 Ultra Case,S21 Ultra Waterproof Case with Built-in Screen Protector Dustproof Shockproof 360 Full Body Underwater Case for Samsung S21 Ultra 5G 6.8inch (2021) Black

Oterkin
Celular
6.2598 x 3.3465 x 0.3346 inches
0.1318 pounds

Ratings for Oterkin (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Oterkin-US - ✅ ✅ ✅
POTALUX-US - ✅ ✅ ✅

Features

√【IP68 Waterproof】: Compatible with Samsung Galaxy S21 Ultra ONLY 6.8 inch 5G. Fully sealed body designed to be waterproof for underwater activities,can submerged underwater for 6.6ft/1 hour. Support taking photos and videos underwater, perfect for outdoor water sports and daily use.
√【360 Degree Protection】: Oterkin S21 Ultra waterproof case equipped with four shock-absorption bumpers protect your new phone from drops and impacts. Full body design makes this case dustproof sandproof snowproof, protect your Samsung S21 Ultra in all weather conditions.
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Top 19

SunStory Phone Case for Samsung Galaxy S21 Ultra 5G Case with HD Screen Protector & Slide Camera Cover & Rotated Ring Kickstand, [Military-Grade] [2 in 1] Phone Case for Galaxy S21 Ultra 6.8'', Red

SunStory
Galaxy S21 Ultra 5G
6.5 x 2.9764 x 0.3504 inches

Ratings for SunStory (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
SunStory - ❌ ❌ ❌

Features

【Only Compatible With Samsung Galaxy S21 Ultra 5G Phone】【Not for Galaxy S21 Phone or Galaxy S21 Plus Phone】Provide HD screen protectors and install them according to the instructions.【Note that】wireless charging is not supported!
【Camera Lens Protection】This phone case use lens slide design, it easy to slide and not to loose, and enhance protective of your phone camera from scratches, collision, scuffs and impact, not only improve safety, protect your privacy but also has a sense of fashion.
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Top 20

Spigen Rugged Armor Designed for Galaxy S21 Ultra Case (2021) - Matte Black

Spigen
ACS02349
6.6586 x 3.1331 x 0.4594 Inches
0.0882 pounds
  • Unknown: Italian

Ratings for Spigen (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Spigen Inc 29 ❌ ❌ ❌

Features

Resilient Shock Absorption and Carbon Fiber Design
Flexible TPU case with interior spider-web pattern & Raised lip to protects screen
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Top 21

FUXICASE Case for Samsung Galaxy S21 Ultra, Silicone Shockproof Cover Women

FUXICASE
GJ JH SAM S21 Ultra SS034

Ratings for FUXICASE (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
FUXICASE Direct - ❌ ❌ ❌

Features

Applicable Models:Only compatible with Samsung Galaxy S21 Ultra, not compatible with other models. Please confirm your phone model before purchasing.
Fashionable Appearance:The FUXICASE Samsung Galaxy S21 Ultra phone case comes in 4 different base colors, with 13 different butterflies printed on the back, two 3D embossed butterfly pattern, and 12 watercolor hand drawn styles. And it is not easy to fade, scratch resistant, and easy to put on and take off. Specially designed for girls and women to meet their pursuit of fashionable phone cases.
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Top 22

Crave Dual Guard for Galaxy S21 Ultra Case, Shockproof Protection Dual Layer Case for Samsung Galaxy S21 Ultra, S21 Ultra 5G (6.8 inch) - Forest Green

Crave
CRVDGS21U106
6.6378 x 3.313 x 0.5083 Inches
0.0688 Pounds

Ratings for Crave (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Crave USA 1,927 ✅ ✅ ✅

Features

Premium protection from drops and scratches
Compact profile allows easy grip and happy pockets
Show More
Top 23

ONOLA for Samsung Galaxy S21 Ultra Case, 3-Layer Cover, PurpleSkyBlue

ONOLA
Samsung Galaxy S21 Ultra Case
6.5787 x 3.0551 x 0.3898 inches

Ratings for ONOLA (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
ONOLA - ❌ ❌ ❌

Features

【Compatibility】 Only Compatible with Samsung Galaxy S21 Ultra 6.8" (2021),【Not fit Samsung S21 6.2" or S21 Plus 6.7"】Provide soft screen protectors and install them according to the instructions.
【Perfect protection】 triple-layer defense: inner shell, rugged outer cover and to combat drops, scratches, bumps and shocks. unique detachable design & 3 in 1 layers protection: shockproof ,dust protection , scratch protection and drop protection. withstands scratches, bumps and shock.
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Top 24

Teayoha for Samsung Galaxy S21 Ultra Case, [Compatible with Magsafe] Matte Translucent Slim Shockproof Case Military Grade Protection Phone Cover 6.8-inch, Black

Teayoha
6.4961 x 3.2283 x 0.5906 inches
0.0882 pounds

Ratings for Teayoha (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
TJ Official Store - ❌ ❌ ❌

Features

[Compatible Mode] Specially designed for Samsung Galaxy S21 Ultra (6.8-inch), Package included: 1 x Case.
[Strong Magnetic Attraction] Featuring 38 super N52 magnets, this samsung galaxy s21 ultra case has a magnetic attraction of 2800 gf, making it almost 7 times stronger than ordinary cases. You can rest assured that your phone will stay securely in place, even when charging. Experience ultimate protection without sacrificing style.
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Top 25

Poetic Guardian Case [6FT Mil-Grade Drop Tested] Designed for with Samsung Galaxy S21 Ultra 5G 6.8", Built-in Screen Protector Work with Fingerprint ID, Full Body Shockproof Case, Black/Clear

Poetic
Guardian-Galaxy-S21-Ultra-Black
3.5433 x 7.0079 x 0.6693 inches

Ratings for Poetic (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
PoeticDirect 380 ❌ ❌ ❌
Top 26

OtterBox Commuter Series Case for Samsung Galaxy S21 Ultra 5G (Only) - Non-Retail Packaging - Black

OtterBox
27-54597-20-NR
5.1969 x 0.6299 x 8.4567 inches
0.15 pounds

Ratings for OtterBox (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Home and Above 6,795 ❌ ❌ ❌
prune 201 ❌ ❌ ❌
alwayz-on-sale 385 ❌ ❌ ❌

Features

Compatible with Samsung Galaxy S21 Ultra 5G (Only - Not Compatible with Galaxy S21/S21+)
Lasting antimicrobial technology helps protect case exterior against many common bacteria **It does not protect you or the screen**
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Top 27

Crave Dual Guard for Samsung Galaxy S21 Ultra Case - Black | Designed for the Samsung Galaxy S21 Ultra (6.8 inch) with Wireless Charging Compatibility and a Textured Grip

Crave
CRVDGS21U101
0.67 x 3.46 x 6.81 inches
0.0688 Pounds

Ratings for Crave (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Crave USA 1,927 ❌ ❌ ❌

Features

Premium protection from drops and scratches
Compact profile allows easy grip and happy pockets
Show More
Top 28

OtterBox Galaxy S21 Ultra 5G (ONLY - DOES NOT FIT Non-Plus or Plus Sizes) Commuter Series Case - DOES NOT FIT Non-Plus or Plus Sizes) - BLACK, Slim & Tough, Pocket-Friendly, with Port Protection

OtterBox
77-81899
7.0 x 4.0 x 0.7 inches

Ratings for OtterBox (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Seller1ON1 72 ✅ ✅ ✅
Amazon.com - ✅ ✅ ✅
alwayz-on-sale 385 ❌ ❌ ❌
prune 201 ❌ ❌ ❌

Features

Compatible with Galaxy S21 Ultra 5G (ONLY - DOES NOT FIT non-Plus or Plus sizes)
Lasting antimicrobial technology helps protect case exterior against many common bacteria *Helps protect the case exterior against many common bacteria. It does not protect you or the screen.
Show More
Top 29

Miqala for Galaxy S21 Ultra 5G Case,Glow in The Dark Three Layer Heavy Duty Shockproof Full Body Protection Hard Plastic Bumper+Soft Silicone Case for Samsung Galaxy S21 Ultra 6.8 inch,Colorful Sky

Miqala
MI0159-20

Ratings for Miqala (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Lavin9999 - ❌ ❌ ❌

Features

★【Compatible】Only Compatible with Samsung Galaxy S21 Ultra 5G 6.8 inch 2021 Released Case,NOT fit for any other phone models. Precision cutouts for easy access to all ports, buttons, sensors and cameras.The unique ergonomic design makes independent buttons feel sensitive and easy to press with good touch.(Without screen protector)
★【Glow and Shiny in the Dark Pattern】The charming pattern in the hard back PC cover makes your Samsung Galaxy S21 Ultra look much more eye-catching and attractive.The case will glow in the dark after absorbing enough light under the sun or other light sources so that you can easily find your phone at night.The longer the case absorbs light,the brighter and longer the glowing will last.Convenient and practical for your daily life,natural simple and stylish phone case, make your phone clearer.
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Top 30

OtterBox Galaxy S21 Ultra 5G (ONLY - Does NOT FIT Non-Plus or Plus Sizes) Defender Series Case - Black, Rugged & Durable, with Port Protection, Includes Holster Clip Kickstand

OtterBox
77-81887
6.96 x 3.41 x 0.62 Inches

Ratings for OtterBox (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
alwayz-on-sale 385 ❌ ❌ ❌
Home and Above 6,795 ❌ ❌ ❌

Features

Trusted OtterBox Quality: With OtterBox, you're not just buying a case; you're investing in peace of mind. Our limited warranty covers material and workmanship defects

Top 10 Galaxy S21 Ultra Cases - Verified to Buy (October 2026)

Top 10 Galaxy S21 Ultra Cases Brands on Amazon

Here is the list of top-rated brands that were evaluated by CherryPicks.

  • LeYi
  • Rayboen
  • OWKEY
  • OtterBox
  • Teayoha
  • FUXICASE
  • MXX
  • FNTCASE
  • MDCN
  • HOOMIL

Related Galaxy S21 Ultra Cases Guides

For more personalized Galaxy S21 Ultra Cases guides, Check those pages,


Top 10 Galaxy S21 Ultra Cases Sellers: CPR Seller Rank List

CPR sellers rank is based on CherryPicks-AI bestselling ranking system that helps us analyze each seller's sales trends. The List of top seller ranks is our in-house data, essential for our product ranking to help you make the right shopping choice.

Rank Name Yearly Feedbacks Avg. Ratings
🥇 Spigen Inc 599,627 4.8
🥈 Seller1ON1 353,019 4.8
🥉 prune 174,226 4.9
4 PoeticDirect 103,296 4.8
5 alwayz-on-sale 102,235 4.8
6 Aomax Tech 36,555 4.8
7 Crave USA 30,117 4.9
8 Demi Cases 11,547 4.9
9 Home and Above 9,935 4.9
10 SOiOS-US 6,687 4.9
View or download top Galaxy S21 Ultra Cases seller & rating report
Spigen Inc [599627] Seller1ON1 [353019] prune [174226] PoeticDirect [103296] alwayz-on-sale [102235] Aomax Tech [36555] Crave USA [30117] Demi Cases [11547] Home and Above [9935] SOiOS-US [6687] Spigen Inc 42% Seller1ON1 25% prune 12% PoeticDirect 7% alwayz-on-sale 7% Aomax Tech 3% Crave USA 2% Demi Cases 1% Home and Above 1% SOiOS-US 0%

[Get] Galaxy S21 Ultra Cases Deals (✅Exclusively for Prime)

What does "Amazon Fulfilled" Mean?

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When you order a product that is "Amazon Fulfilled," Amazon takes care of the storage, packing, shipping, and customer service for that product. This often ensures quicker delivery and better customer service compared to products that are not fulfilled by Amazon. It also means that the product is eligible for Amazon's return policy.

What does "Prime" Mean?

"Prime" refers to Amazon Prime Member (Join Amazon Prime Now), which indicates eligibility for Prime benefits. When you see "Prime" next to a product on Amazon, This generally means that if you are  an Amazon Prime member, you can get free two-day shipping on that product, and sometimes even same-day or one-day shipping depending on your location.

Prime members also have access to other benefits, including 2-Day Shipping, Exclusive Member Deals, Prime Video, Buy With Prime, Amazon Music, Prime Gaming, and more.

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What does "Free Shipping" Mean?

"Free Shipping" means that you will not be charged additional fees for the shipping of that product. However, unlike "Prime," which usually guarantees fast two-day shipping, "Free Shipping" doesn't necessarily mean fast shipping.

Sometimes there might be a minimum purchase requirement to qualify for free shipping if you are not a Prime member. For Prime members, the "Free Shipping" usually refers to the free two-day shipping that is one of the benefits of the Prime membership.


Why Should You Trust Us?

Now hundreds and thousands of Cases, Holsters & Clips supplies are available on Amazon, Picking the right one is not easy, and that may take a lot of your time, Right? and What is the best Galaxy S21 Ultra Cases to buy for new October 2026?

CherryPicks’s Methodology for Evaluating Galaxy S21 Ultra Cases

We developed the CherryRatings-AI system to identify and score reviews and the CherryPicks-AI ranking system that uses TensorFlow framework to generate the best list, It will help us evaluate Cases, Holsters & Clips items that sell on Amazon. The score of items is based on over ten parameters such as analyzing customer review content, product reviewing rating statistics, brand reputation evaluation, comparing product price with features, etc, You can visit How We Rank to learn more in detail.

We collected and analyzed 306 of Galaxy S21 Ultra Cases reviews based on our selection criteria. It helped us shortlist the top qualified and rated Galaxy S21 Ultra Cases for Cases, Holsters & Clips, We found that most customers choose Galaxy S21 Ultra Cases with an average price of $18.18, and the top brands are Spigen, OtterBox, LeYi, FNTCASE, i-Blason, Crave, Poetic, SunStory, ONOLA, imluckies And Rayboen. 

Then our expert-level editors reviewed all those quality items and selected the top 30 Galaxy S21 Ultra Cases for you, We have researched hundreds of sellers and picked the top sellers for Cases, Holsters & Clips, including Amazon Resale, Spigen Inc, Seller1ON1, prune, PoeticDirect, alwayz-on-sale, Aomax Tech, Crave USA, Demi Cases, Home and Above, SOiOS-US And SunStory. The LeYi for S21-Ultra Phone Case: Samsung Galaxy S... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 6,161 consumers with an average rating of 4.5.

We've helped a lot of satisfied users get the right Cell Phones & Accessories product based on their needs, and save lots of time for them to pick Galaxy S21 Ultra Cases to buy.


Written By Martins JP

A computer and smartphone enthusiast who loves to write about what he thinks about gadgets he has used. He would be providing us with unbiased reviews of cell phones and accessories he has used personally to help us make better decisions.