Top 10 Best samsung galaxy s21 ultra in 2026

Last Updated - 6/28/2026

🏆Best Choice

ZTOFERA

ZTOFERA Designed for Samsung Galaxy S21 Ultra 5G Case,Cute Plating Edge Love Hearts Pattern with Camera Lens Protection Phone Cover for Girls Women,Black

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•【Compatibility】Only designed for Samsung Galaxy S21 Ultra 5G(6.8 inch),please double-check your phone model before purchasing
•【Cute Love Heart Design】Simple love heart pattern adds a stylish touch to the case, showing your aesthetic and love of life
•【Luxury Plating Edge】The bumper edge using plating technology,to prevent the mobile phone case discoloration,fading,make the case durable;Soft TPU material provides a light and comfortable use experience
•【Full Protection】Upgrade 4 Raised bezel plated edges prevent your camera and screen from scratches and dirt,making your Samsung Galaxy S21 Ultra 5G absolutely scratch resistant. Easy access to all controls and features;Perfect cut to fit speaker, camera and other ports
•【Perfect Gift】 ZTOFERA case for Samsung Galaxy S21 Ultra 5G combination of electroplating technology and simple love patterns makes your phone more fashionable and attractive, which is perfect for Christmas,Valentine and other holiday gifts for friends,daughters and wife

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$7.99

$8.99

-11%

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Teayoha

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)

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•[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 compatible with all wireless chargers including magsafe.
•[Military Grade Drop Tested] The Samsung S21 ultra case has been tested on Military Grade Drop Test by SGS, and cushioned corners can prevent your mobile phone from accidental drops, bumps, dust and scratches.
•[Screen & Camera Safeguard] This strong magnetic case provides 1.3 mm camera lips and 0.8 mm screen lips, which help prevent your Galaxy S21 ultra from scratch and broken. The frosted tree-grain feel on the back provides excellent grip for one-handed operation.
•[Precise Design & Fits Perfectly] All the holes fit perfect. What's more, Honeycomb design inside for heat dissipation and cooling breathable to gurantee your telephone work normally. Functional design & vivid color that bright your mood. Multicolors for choices, suitable for women men girls boys friends teenage kids youth.

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$9.99

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OtterBox

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

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•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
•Tested to survive 4X as many drops as military standard (MIL-STD-810G 516.6) with raised edges protect camera and screen
•Made of 50% recycled plastic, the screenless design provides flawless touch response.
•"Case Only: - Belt Clip Holster Not Included".

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$29.95

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FNDMIL

FNDMIL for Samsung Galaxy S21 Ultra Case with MagSafe [Adjustable Kickstand] [Charge While Standing] [Military Shockproof] Translucent Matte Soft Silicone Bumper for S21 Ultra Phone Case Slim, Black

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•【MAG×STAND— Magic Two in One】FNDMIL has been pursuing to create an excellent magnetic protective case for Samsung users. This time, the Samsung Galaxy S21 Ultra Case provides an advanced technology solution that combines beauty, protection and convenience, allowing you to experience hands-free and multi-angle tilting while uninterrupted wireless charging.
•【Magic Magnetic Lock】This Samsung Galaxy S21 Ultra case uses cutting-edge Halbach array technology and top-level 38 N52SH permanent magnets, providing amazing stability and up to 18N of secure magnetic force, enjoy a stronger connection experience and faster wireless charging. It is seamlessly compatible with most Mag-Safe accessories, such as the Mag-Safe car mount. The powerful suction keeps your phone stable even when driving on bumpy roads
•【Durable Adjustable Stand】After 30,000 rigorous folding tests, the folding area is made of high-carbon steel hinges for seamless closure and long-lasting durability. 0-65° adjustable angle allows for easy upright and horizontal support, perfect for watching shows, short videos, freeing your hands and enjoying a comfortable viewing experience. This Samsung S21 Ultra Case with kickstand can be integrated into every scene of your life
•【All-round Shockproof】FNDMIL the Samsung Galaxy S21 Ultra Cover has passed the 12FT military grade shockproof certification , with built-in airbag slots in the four corners, a shockproof hard back, and a high-rebound, impact-resistant soft silicone bumper. It also has a raised 1.0mm screen edge and 1.5mm lens frame to protect the phone from daily wear and scratches, providing the ultimate shockproof protection for your phone
•【Perfect Compatibility & Responsive Support】This mag safe compatible the Samsung Galaxy S21Ultra Case Cover is only fit for S21Ultra [6.8 inch], it provides precise cutouts for seamless access to all buttons and ports, and fits snugly phone. We provide you with 24/7 caring service. If you have any questions, please contact FNDMIL customer support, we will provide you with comprehensive protection plans, personalized support and help

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$21.99

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ATUMP

ATUMP for Samsung Galaxy S21 Ultra Case with [2 Pack] HD Screen Protector with Slide Camera Cover, 360° Rotation Ring Kickstand [Military Grade] Shockproof Protective Case for S21 Ultra, Black

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•📱【Compatible Model】Protection case for Samsung Galaxy S21 Ultra Case 6.8 inch. NOT fit for other device! The precise cut out fits each button,camera,speakers and ports precisely, easy to press and access.⚠ Notice: Due to the metal ring on the back,this case will NOT work with wireless charging function.
•👍【Military Grade Protection】Double layer shockproof case made by TPU+PC.This multi-layer cushion structure provide additional shock absorption protection,this S21 Ultra Case Pass 16ft Drop Test. Case provides shockproof anti-scratches and anti-drop protection.Provides all round protection for your phone in all activities, especially when working outdoors, doing sports, camping, traveling etc.
•👍【Upgrade Camera Lens Protection】Upgrade camera slide cover design, with fixed locks designed specially on each side, no need to worry about the camera lid will be loose or fall off. Protects the Galaxy S21 Ultra Case camera lens against scratches,scrapes, while helps protect your privacy from revealing.
•👍【360°Metal Rotating Kickstand Ring】Equipped with premium metal ring kickstand, designed for S21 Ultra Case offers multiple adjustable angles. Built in kickstand holds your phone at optimal viewing angles for movies & videos and free your hands when watching films, playing games or online chatting. The Metal Patch back easily attach to magnetic car mount,very convenient during driving time for navigation.You will love how convenient it is with such powerful functions.
•👍【ATUMP QUALITY SERVICE】Package includes :1x Samsung Galaxy S21 Ultra Case. And free [2 Pack ]HD Screen Protector(Plastic).👉️Our products come with 60 days warranty. If your have any question about case,please feel free to contact us by E-mail. Atump will happy to solve for you within 24 hours.

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$7.48

$8.99

-17%

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OtterBox

OtterBox for Samsung Galaxy S21 Ultra 5G, Superior Rugged Protective Case, Defender Series, Black

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Compatibility: OtterBox Defender Case for Samsung Galaxy S21 Ultra 5G (Not Compatible with S21, FE, Plus models)
•Premium Rugged Design: Clean lines and a rugged grip have you covered for optimal form and function for your S21 Ultra, port covers keep out dust and debris
•Drop+ 4x as many drops as military standard (Mil-Std-810g 516.6) works with wireless and MagSafe charging pads (no magnets in case)
•Hands-Free Functionality: The included detachable belt clip holster doubles as a kickstand for hands-free viewing
•Includes OtterBox limited lifetime warranty (see website for details)

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$39.95

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Rayboen

Rayboen for Samsung Galaxy S21 Ultra Case, Translucent Frosted Skin Feel Anti-Scratch Hard PC Back Soft Silicone Edge, Slim Fit Shockproof Protective Phone Cover for Samsung S21 Ultra, Matte Purple

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Translucent Matte Back: Meticulously designed for the Galaxy S21 Ultra, snap your phone in and go. The frosted texture and translucent hard PC back give this S21 Ultra case a unique and sleek look and keep the phone's logo visible, allowing your phone to be placed freely and away from scratches! Plus, you won't have to worry about the case yellowing like other clear cases
•𝐍𝐨 𝐒𝐜𝐫𝐞𝐞𝐧 𝐏𝐫𝐨𝐭𝐞𝐜𝐭𝐨𝐫 - Phone Case for Samsung S21 Ultra ONLY (𝐃𝐨𝐞𝐬 𝐍𝐎𝐓 𝐟𝐢𝐭 𝐆𝐚𝐥𝐚𝐱𝐲 𝐒𝟐𝟏, 𝐆𝐚𝐥𝐚𝐱𝐲 𝐒𝟐𝟏 𝐅𝐄, 𝐆𝐚𝐥𝐚𝐱𝐲 𝐒𝟐𝟏+). PLEASE CHECK YOUR PHONE MODEL BEFORE ORDERING. Phone model check path: 𝐒𝐞𝐭𝐭𝐢𝐧𝐠-𝐚𝐛𝐨𝐮𝐭 𝐭𝐡𝐞 𝐩𝐡𝐨𝐧𝐞- 𝐦𝐨𝐝𝐞𝐥 𝐧𝐚𝐦𝐞
•Premium Aluminum Alloy Material: The Camera Lens and Side Buttons of our frosted Galaxy S21 Ultra case is crafted from lightweight and durable aircraft aluminum alloy, giving it a premium metallic feel, and making your Samsung S21 Ultra more stylish and eye-catching. The distinct button design provides a crisp press, experience luxury with our chic and responsive metallic buttons
•Sufficient Coverage and Protection: Say Goodbye to scratches! Rayboen's sturdy S21 Ultra Phone case adopts a hard PC back, reinforced TPU bumper, and the exclusive patented 4-corner shockproof Airbags, which can disperse most impacts, ensuring your phone stays safe from drops and accidental bumps. Raised edges around the screen and camera effectively prevent surface scratches. Enjoy a snug fit with our durable phone case for Samsung S21 Ultra 𝗡𝗼𝘁𝗲: No screen protector is included
•Precise Cutouts: At Rayboen, we focus on every detail to ensure easy access to all buttons and ports. Our Galaxy S21 Ultra 5G case slim features a sleek 0.059-inch profile, maintaining the phone’s natural size while providing reliable protection that effortlessly fits your pocket, and supports wireless charging. The flexible construction allows for easy installation and removal, all while preserving your phone’s original elegance
•Comfy and Secure Grip: Fantastic grip and thickness ensure the utmost security. The skin-friendly texture of our cute Samsung Galaxy 5G S21 Ultra case provides an unparalleled feel-good experience, making every touch pleasurable. This ergonomic consideration not only enhances the handling experience but also minimizes the risk of accidental slips and falls

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$10.99

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OtterBox

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

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•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**
•Case is infused with silver-based additive that continually blocks microbial growth
•Thin profile slips in and out of pockets with soft inner and hard outer layers absorb and deflect impacts, open access to ports and speakers

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$19.99

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Oterkin

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

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•√【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.
•√【Support All Functions& High Clarity】: Easy accessible buttons and precise cutouts for all ports of S21 Ultra 5G. Built-in screen protector remains high sensitivity and supports fingerprint unlock. Clear back supports wireless charging,you can charge phone without removing this S21 Ultra phone case.
•√【Secure Hand Grip】: Non slip groove redesigned sides for reinforced grip, sturdy lanyard makes S21 Ultra easy to carry and decrease falling times. Slim and light body does not add too much bulk,can be easily put into the pocket. Two covers snap on design makes it easy to take on and off.
•√【What you can get 】: 2021 New released Oterkin Waterproof case for S21 Ultra 6.8 inch 5G, Professional Screen Cleaning Paper,Lanyard,12 months warranty and 24/7 service.

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$21.99

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Aropuktek

Aropuktek for Galaxy-S21-Ultra Case: with 2 PCS Screen Protector for S21 Ultra Phone Case, Longer & More Stable Kickstand, Slide Camera Cover, Heavy Duty Shockproof Case for S21 Ultra, Navy Blue

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Compatible: 𝗡𝗼𝘁 𝘀𝘂𝗽𝗽𝗼𝗿𝘁 𝘄𝗶𝗿𝗲𝗹𝗲𝘀𝘀 𝗰𝗵𝗮𝗿𝗴𝗶𝗻𝗴; This phone case only fits the samsung galaxy s21 ultra 6.8 inch【 𝐍𝐨𝐭 𝐅𝐢𝐭 𝐒𝟐𝟏 / 𝐒𝟐𝟏 𝐅𝐄 / 𝐒𝟐𝟏 𝐏𝐋𝐔𝐒】,comes with 2 * HD screen protectors
•Built-in Longer & More Stable Kickstand: The galaxy s21 ultra case comes with a 360° rotating extended metal stand made of strong metal material that is not easy to break, and it makes it easy to view the phone vertically or horizontally, freeing your hands while watching TV shows and videos
•Military-Grade Protection: The shockproof cell phone case features a double-layer back cover and PC back design, providing high-quality shock absorption and strong drop protection for your phone, preventing daily wear and tear
•Sliding Camera Lens Cover: The heavy duty rugged phone cover special camera slide cover design is easy to slide and will not loosen, which can enhance the protection of the phone camera, prevent scratches, collisions, wear and impact, and ensure that the phone is fully protected
•Precise Cutouts: Precise incision design ensures accurate alignment of the speaker, camera, charging port, etc, without obstructing or affecting the device's functions This allows convenient and quick access to various phone functions

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$8.99

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