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OtterBox

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

  • Based on 1,741 reviews
Condition: New
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$39.95 Why this price?

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This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Sep 7
Order within 3 hours and 30 minutes
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Features

  • 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)

Material: Plastic


Color: Black


Brand: OtterBox


Compatible Phone Models: Samsung Galaxy S21 Ultra 5G


Fastener Type: Clip On


Product Dimensions: 8.5 x 4.5 x 1.5 inches


Item Weight: 5.1 ounces


Item model number: 77-81983


Date First Available: June 15, 2021


Manufacturer: OtterBox


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Sep 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Extremely durable
Color: Black Size: Samsung Galaxy S21 Ultra ONLY
I have used other cases on my phone before, but Otter Box is the only one that actually protects my phone. I work a very active strenuous job where dropping my phone on dangerous surfaces is not uncommon. I've had the same Otter Box case on my phone for about 4-5yrs and it has never failed me. I'm replacing it now due to enough wear and tear on the outer shell, but it's still worth it. Best case you will ever find to protect your phone. Sure maybe you can find more variety in colors on other brands, but this one is far more durable and black is classic. ... show more
Reviewed in the United States on February 22, 2025 by Trust
    • Very good protector
Color: Black Size: Samsung Galaxy S21 Ultra ONLY
Very good at protecting your phone very durable and no doesn't come with glass face protection like on older versions so you need to buy screen protector separately. This is the only case I buy because it's so durable
Reviewed in the United States on July 12, 2025 by Brandon Salary
    • Perfect fit.
Color: Black Size: Samsung Galaxy S21 Ultra ONLY
Excellent fit. The old one wore out. Now the S21 looks brand new.
Reviewed in the United States on July 30, 2025 by Michael Masleid
    • Great product
Color: Black Size: Samsung Galaxy S21 Ultra ONLY
Excellent quality
Reviewed in the United States on July 19, 2025 by REGE
    • Great case!
Color: Black Size: Samsung Galaxy S21 Ultra ONLY
I bought this to replace the same case I had for 3 years, the belt clip broke on that one, I've dropped the phone numerous times and never any damage, best case I ever had.
Reviewed in the United States on June 9, 2025 by Joe
    • Solid protection for your phone.
Color: Black Size: Samsung Galaxy S21 Ultra ONLY
Fits snugly around your phone, no tools required. My phone is old,but I drop it with regularity. My old case did its job, but shattered at the end. I knew I had to get another case. The clip to hold the phone to your belt is a little suspect or I have not mastered its use.
Reviewed in the United States on July 19, 2024 by Helmuth Massat
    • Gets the job done
Color: Black Size: Samsung Galaxy S21 Ultra ONLY
Very durable and stable
Reviewed in the United States on August 4, 2025 by MKD
    • Otter Box
Color: Black Size: Samsung Galaxy S21 Ultra ONLY
Very good service and the right product.
Reviewed in the United States on July 22, 2025 by Amazon Customer

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