Explore the latest Back to School techShop now

Skip to contentGo to Product Search
Main Content

Customer Ratings & Reviews

No content
  • Front. Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Navy.
  • Alt View 11. Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Navy.
  • Alt View 12. Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Navy.
  • Alt View 13. Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Navy.
  • Alt View 14. Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Navy.
  • Alt View 15. Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Navy.
  • Alt View 16. Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Navy.
  • Alt View 17. Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Navy.
  • Alt View 18. Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Navy.
  • Samsung Galaxy S21 Ultra 5G Navy video 0 minutes 13 seconds

Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Navy

Model:
SM-G998UZBAXAA
SKU:
11034328

Customer reviews

Rating 4.6 out of 5 stars with 985 reviews

Rating Filter

Rating by feature

  • Display Quality

    Rating 4.8 out of 5 stars

  • Camera

    Rating 4.8 out of 5 stars

  • Battery Life

    Rating 4.7 out of 5 stars

91%
would recommend
to a friend
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 14 Showing 261-280 of 985 reviews

  • Great phone!

    |
    |
    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The original phone I received was not unlocked as stated but they were quick in fixing the issue! I love this phone!

    This review is from Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Phantom Black

    I would recommend this to a friend

  • great phone

    |
    |
    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Extremely fast phone. Great camera. Feels very sturdy.

    This review is from Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Phantom Black

    I would recommend this to a friend

  • Best phone

    |
    |
    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Was best phone but it was time too upgrade to S23 Ultra.

    This review is from Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Navy

    I would recommend this to a friend

  • Love ❤️ it

    |
    |
    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This phone is bombs shell love it i bought it for my wife

    This review is from Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Phantom Silver

    I would recommend this to a friend

  • Great phone

    |
    |
    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I enjoyed the phone while I had it. Nice and durable

    This review is from Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Phantom Black

    I would recommend this to a friend

  • Good

    |
    |
    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I like those everything works fine................

    This review is from Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Phantom Silver

    I would recommend this to a friend

  • good

    |
    |
    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    good phone,still working like new,bright colors,fast

    This review is from Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Navy

    I would recommend this to a friend

  • Cell phone

    |
    |
    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Husband has this phone works great !! He absolutely loves it!

    This review is from Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Navy

    I would recommend this to a friend

  • Samsung 21 ultra

    |
    |
    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Nice phone, i love it, no problems with it, hold alot of photos

    This review is from Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Phantom Black

    I would recommend this to a friend

  • Awsome

    |
    |
    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Awsome phone here love it everything in this phone is great

    This review is from Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Phantom Black

    I would recommend this to a friend

  • Amazing

    |
    |
    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This device is very good. The cameras are amazing.

    This review is from Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Phantom Silver

    I would recommend this to a friend

  • Best buy store

    |
    |
    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Nice service and fast service I highly recommend here

    This review is from Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Phantom Black

    I would recommend this to a friend

  • Nice looking phone

    |
    |
    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Love the phone had no problems with bit I recommend to buy

    This review is from Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Navy

    I would recommend this to a friend

  • Still going strong after 2 and a hair years

    |
    |
    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Best phone I've used to date. Great quality hardware

    This review is from Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Phantom Black

    I would recommend this to a friend

  • Great phone

    |
    |
    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Love this phone. Camera is really nice. Kinda having issues with At&t network connecting to 5G since it is an unlocked version. Went to At&t store and they said this is a common problem. I know of people who have same unlocked phone and can connect with no issues. Overall this phone was a nice upgrade from previous S9+.

    This review is from Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Phantom Black

    I would recommend this to a friend

  • S21ultra

    |
    |
    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great phone awesome.love it.I can do every thing with this phone

    This review is from Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Navy

    I would recommend this to a friend

  • Galaxy S21 Ultra

    |
    |
    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Hands down the best phone I've ever owned. Perfect size for my hands. Lots of memory and quick response with everything i use. Cameras are amazing. See far away things from miles away like they are right in front of you. Highly recommended even if you've never owned a Galaxy before.

    This review is from Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Phantom Black

    I would recommend this to a friend

  • Patron

    |
    |
    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Exelent product for my work And party with mi frends

    This review is from Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Navy

    I would recommend this to a friend

  • Samsung Bells and Whistles

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This phone has it all. Large screen, large battery and so many cameras to get the perfect shot.

    This review is from Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Phantom Black

    I would recommend this to a friend

  • Great phone

    |
    |
    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great phone, greqt quality, still serving me till date

    This review is from Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - Phantom Black

    I would recommend this to a friend
Page 14, Showing 261-280 of 985 reviews
Sign in or Create Account

Get the latest deals and more.

Best Buy appLearn more
Share on YouTubeShare on InstagramShare on TikTokShare on FacebookShare on PinterestShare on X
Best Buy Canada
AccessibilityTerms & ConditionsPrivacyInterest-Based AdsState Privacy RightsHealth Data PrivacyDo Not Sell/Share My Personal InformationLimit Use of My Sensitive Personal InformationTargeted Advertising Opt OutCA Supply Chain Transparency Act
In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.