60th Anniversary SaleEnds Sunday. Exclusions, terms and conditions apply.Shop now

Skip to contentGo to Product Search
Main Content

Customer Ratings & Reviews

No content

    Samsung - Galaxy S21 5G 128GB (Unlocked)

    Model:
    SM-G991UZKAXAA
    SKU:
    6441105
    Highly rated by customers for:

    Customer reviews

    Rating 4.6 out of 5 stars with 640 reviews

    Rating Filter

    Rating by feature

    • Display Quality

      Rating 4.7 out of 5 stars

    • Camera

      Rating 4.7 out of 5 stars

    • Battery Life

      Rating 4.5 out of 5 stars

    Pros mentioned filter

    Cons mentioned filter

    91%would recommend to a friend

    Customers are saying

    Customers appreciate the Galaxy S21 5G 128GB (Unlocked) for its improved camera, extended battery life, and reasonable price. They also enjoy the phone's user-friendly interface, stunning display, and stylish design.

    This summary was generated by AI based on customer reviews.

    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 8 Showing 141-160 of 640 reviews
    • Pros mentioned:
      Battery life, Camera

      Excelent

      |
      |
      Posted . Owned for 10 months when reviewed.
      This reviewer received promo considerations or sweepstakes entry for writing a review.

      beautiful color and increible camera, good battery

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

      I would recommend this to a friend
    • Pros mentioned:
      Easy to use

      Previous iPhone user

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

      I adore this phone. I have had an iPhone for many many years. I tried to switch to a Samsung twice before, going to the Galaxy S 9, and then the Galaxy A50. The S 9, I didn't really give too much of a chance if I'm being honest. But the A50, I did not care for. However, this phone, I love so much! It is so easy to use and I just love the features it has.

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

      I would recommend this to a friend

    • Galaxy

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

      Very functional and great picture quality! Easy to use.

      I would recommend this to a friend

    • Phone overview

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

      The phone was in good condition and it was delivered just in time.

      I would recommend this to a friend

    • Perfect gift for anyone

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

      Great product, you gotta love it if you get one ! Samsung never disappoints

      I would recommend this to a friend

    • Superb

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

      Phone was excellent! Highly recommend Samsung prodcuts!

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

      I would recommend this to a friend
    • Pros mentioned:
      Price, Speed

      Love this phone

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

      Very good phone! Would recommend. Good price! Very fast too!

      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.

      Awesome phone. I've been a galaxy user since the 5 and will not change that.

      I would recommend this to a friend

    • No more microSD insert

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

      Downside this cellphone it does not have microSD insert anymore.

      I would recommend this to a friend

    • Good phone

      |
      |
      Posted . Owned for 6 months when reviewed.
      This reviewer received promo considerations or sweepstakes entry for writing a review.

      This phone is pretty great, it is very responsive and I haven't had any storage issues at all after bringing all the stuff from my old phone onto it. The color is also really pretty. The camera is pretty good quality, got some good pictures outside and on some mountains so it handles pretty well.

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

      I would recommend this to a friend
    • Pros mentioned:
      Camera, Price

      Galaxy

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

      Fantastic phone for a great price. Takes great pictures

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

      I would recommend this to a friend

    • Galaxy

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

      Great phone has lasted me 2 years and is still going!

      I would recommend this to a friend

    • Case

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

      It is one of the best Proctector I have bought in best buy

      I would recommend this to a friend

    • Good phone

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

      Works great, does what I need it to do. Good for the price.

      I would recommend this to a friend

    • Galaxy s21

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

      I buy Samsung galaxy was really fantastic phone.love it

      I would recommend this to a friend

    • Best

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

      It's an amazing phone! I absolutely love it. Best purchase.

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

      I would recommend this to a friend
    • Pros mentioned:
      Camera

      Not now

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

      Excellent very light love the color very good pictures

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

      I would recommend this to a friend

    • S21 5G

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

      Great phone which it i can add a memory card overall 8 out 10

      I would recommend this to a friend

    • Great phone

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

      Great product. Have been using it for over a year with no problem.

      I would recommend this to a friend

    • My wonderful phone

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

      It’s a wonderful phone worked perfectly, above expectations.

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

      I would recommend this to a friend
    Page 8, Showing 141-160 of 640 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.