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Customer Ratings & Reviews

Your price for this item is $369.99
The comparable value price 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 1 Showing 1-20 of 54 reviews
  • Pros mentioned:
    Camera quality, Condition, Overall performance

    Rated 5 out of 5 stars

    Perfect Condition, Outstanding Value!

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

    I recently purchased a pre-owned Samsung Galaxy S21 Ultra, and I couldn't be happier with my decision. The phone came in perfect condition, with no visible blemishes or signs of wear. Everything about it, from the stunning display to the powerful performance, exceeded my expectations. The camera capabilities are especially impressive, with the 108MP main sensor and up to 100x Space Zoom delivering incredible detail and clarity. Recording in 8K is a game-changer, and the device handles multitasking like a champ, thanks to its robust RAM and processor. For the price I paid, this was not just a great phone but an amazing buy. If you're considering a pre-owned flagship, the S21 Ultra is worth every penny!

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

    Rated 5 out of 5 stars

    Refurbished

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

    For being a refurbished phone i am very pleased. Its fast with a lot of storage i have yet to need an SD card. Photo quality is amazing as well.

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

    Rated 5 out of 5 stars

    Happy with it.

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

    I was nervous getting a pre-owned phone but was shocked tht it looked brand new and has only a tiny scratch on it but its so small you cant see it unless you are searching with a magnifying glass. Overall im happy with it since it was a gift for a child. Im so glad i went through Best Buy than any others.

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Rated 5 out of 5 stars

    Galaxy

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    Posted . Owned for 8 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great phone and great price. Refurbished phone works great

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

    BaD Samsung phone.

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

    Battery badly and not working at all.I purchases this at best buy after months the Camera stops working and Go to the store they said it factory problem. Called Samsung they sent me to ubreakifix I spend $69,to fixes it month later Camera failed again. I always bought Samsung but not anymore.

    No, I would not recommend this to a friend
  • Rated 1 out of 5 stars

    River C 2912 Palmetto Cir

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

    Whenever I want to shop, I find Best Buy the most suitable for that. Everything is guaranteed and the treatment is good and comfortable. I look forward to visiting them every time.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life, Camera quality, Overall performance

    Rated 5 out of 5 stars

    samsung s21 ultra

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

    its working good. sometimes the screen freezes. but nothing major. the battery does last . i love rhe Camara and some features that is has i haven't really played with it much . but i like it..

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

    Rated 4 out of 5 stars

    Joes phone

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

    Works well. Like the speed for what I use it for good phone.

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

    Rated 5 out of 5 stars

    AWESOME !

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

    First off, this phone arrived 2 days ahead of schedule, which was great! Next, the phone looks like it's brand new! There is only 1 blemish on it and that is where you plug the charging cable to it. No big deal. This phone is slick so you will need a case for it. I almost dropped it twice trying to pick it up. I love the wifi 6 (e) as this makes for a very speedy phone. I haven't tried the camera yet, as I really have very little use for it. Audio for talking and music can be made pretty loud, so you will have no problem with hearing the other side speaking to you. My only real dislike is that I have to see the Verizon splash screen at bootup. I am not on Verizon. This phone has a ton of features that I have not tried as of yet. I will update this if anything bad happens. I've only had this for less than 24 hours, but at this time, I would highly recommend this phone.

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Rated 2 out of 5 stars

    Signal absolutely sucks

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

    The phone itself is great, the picture and camera wonderful. After 5 years decided to upgrade from S10e to S21 ultra. I had signal everywhere, never skipped, never lagged. But this S21 seems to continuously lose signal and goes into roaming so many times. Strongly considering just going back to S10 if i cant figure out why signal keeps dropping. I dont even know if this review will post.

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

    Rated 4 out of 5 stars

    Highly recommend

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

    Love this phone overall. Phenomenal camera hands are my favorite thing about it.

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Rated 5 out of 5 stars

    Perfect

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

    It works perfectly well, I really liked it, and updates do it as if I were out of the year.

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

    Rated 5 out of 5 stars

    Excellent Phone

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

    I upgraded from a Samsung S8 and this is so much faster and great features

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Rated 5 out of 5 stars

    Phone

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

    Execellent condition works perfectly love it ………..

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

    Pre-owned

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

    Had a dead pixel and a deep scratch on the screen. I'll never buy pre-owned again

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

    Rated 5 out of 5 stars

    yes

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

    works :) in good condense gets the job done and its cool

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Rated 5 out of 5 stars

    Galaxy 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.

    An excellent product, I was really impressed and satisfied

    I would recommend this to a friend
  • Pros mentioned:
    Battery life, Camera quality

    Rated 5 out of 5 stars

    Superb camera

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

    Camera is superb, phone is very well functioning and very long battery life

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

    Samsung 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.

    Its a celphone amazing, price, cuality and funcionality

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Rated 4 out of 5 stars

    S21

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

    Good quality but the packaging is awful. But in total, it's fine.

    I would recommend this to a friend
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