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Customer Ratings & Reviews

Your price for this item is $399.99

Customer reviews

Rating 4.1 out of 5 stars with 54 reviews

Rating Filter

Rating by feature

  • Display Quality

    Rating 4.5 out of 5 stars

  • Camera

    Rating 4.6 out of 5 stars

  • Battery Life

    Rating 4.3 out of 5 stars

Pros mentioned filter

Cons mentioned filter

80%would recommend to a friend

Customers are saying

Customers are impressed with the quality of the pre-owned Galaxy S21 Ultra 5G 128GB (Unlocked) and are pleasantly surprised to find that it looks brand new with minimal scratches. They are also very satisfied with the superb camera capabilities, particularly the 108MP main sensor and up to 100x Space Zoom. However, some customers have expressed frustration with the fact that the phones are not truly unlocked as advertised, causing issues with SIM card compatibility.

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 3 Showing 41-54 of 54 reviews
  • Rated 5 out of 5 stars

    S21 ultra

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

    Quick delivery and response time. Item was as described.

    I would recommend this to a friend
  • Cons mentioned:
    Locked

    Rated 1 out of 5 stars

    Locked phone

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

    It was supposed to be a unlocked phone but was actually a Verizon locked phone so I returned it.

    No, I would not recommend this to a friend
  • Rated 5 out of 5 stars

    I'm Happy.

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

    I'm happy with my cell phone, really is amazing and very cheap

    I would recommend this to a friend
  • Cons mentioned:
    Long wait

    Rated 1 out of 5 stars

    Long wait to get a defective device.

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

    This pgone was defective and wS returned on the same day i can to pick it up. I also had to wait for a week and some change to recive it and i was not happy that when it finally arrives it defective.

    No, I would not recommend this to a friend
  • Rated 5 out of 5 stars

    Very great phone

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

    Looked almost brand new couldnt even tell it was used

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    Price

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

    Really pricey and for it too be pre owned & not worth it

    No, I would not recommend this to a friend
  • Pros mentioned:
    Camera

    Rated 4 out of 5 stars

    Good product

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

    The phone worked very well, but I did by it used so there were going to be some scratches like on the screen and on the aluminum side piece the cameras have. But these scratches were not very noticeable unless you really try to find them.

    I would recommend this to a friend
  • Cons mentioned:
    Locked

    Rated 2 out of 5 stars

    Not what i ordered

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

    Phone came in perfect condition but its was suppose to be unlocked when it arrived i put sim card in and it was still locked to att so had to return it then they didnt have a phone for the same price and said it would take 2 to 3 weeks to get one after waiting 2 weeks for the first one. so needless to say i wasnt very happy

    No, I would not recommend this to a friend
  • Rated 3 out of 5 stars

    PSA - 4+ Year Old Phone

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

    Know what you're buying. This phone is more than 4 years old, and monthly security updates stopped in February 2025. It will only receive quarterly security updates through the end of January 2026. As of today, this gives you a little over 9 months of shelf life on this phone. It's a great phone, just know what you're buying.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Camera

    Rated 5 out of 5 stars

    Camera is awesome!

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

    Phone works great! Camera is the best part. Battery life is good too.

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Mid range in 2025

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

    For the same price, you can get this brand new on other sites.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Samsung s21 ultra

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

    A really good phone and solid picture quality and not that heavy compared to the other phones

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Best buy service

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

    I really love shopping best buy cause they do best customer servise

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    OVERPRICED - GO TO AMAZON - SAVE OVER $200

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

    OVERPRICED BY OVER $200. I should have checked AMAZON first, 4 year old phone still going for nearly $500 bucks.

    No, I would not recommend this to a friend
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