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Customer Ratings & Reviews

Your price for this item is $239.99
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The comparable value price is $1,199.99

Customer reviews

Rating 4.6 out of 5 stars with 986 reviews

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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

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Cons mentioned filter

91%would recommend to a friend

Customers are saying

Customers are satisfied with the Galaxy S21 Ultra 5G 128GB (Unlocked) smartphone, particularly praising its camera quality, long battery life, and reasonable price point. The phone's design and performance are also well-received, with users appreciating its sleek look, powerful performance, and user-friendly interface.

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 19 Showing 361-380 of 986 reviews
  • Pros mentioned:
    Camera

    Rated 5 out of 5 stars

    Love my phone

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

    Samsung - Galaxy S21 Ultra 5G. Had phone for a few weeks now, camera is amazing. love the size of screen as well. Still learning things about it.

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

    Rated 5 out of 5 stars

    Amazing phone

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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.

    Best Samsung phone too far. I use samsung from Gslaxy S3 but this has the most powerful and beautiful at all. Great camera, very fluid, Screen vivid. And big A+++

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

    Rated 5 out of 5 stars

    Samsung S21 ultra 5G

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

    Wow! Nice phone! GREAT camera. I'm a Samsung loyalist and am very happy with the trade in and new features. Really like the video quality and editing capabilities.

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

    Locked phone fixed

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

    I purchased a Samsung Galaxy a21, unlock and used with any carrier. When I arrive home the phone was T-Mobile and had to spend the extra time to return the phone and get it replaced with an unlocked version that will work with my carrier. My carrier was not T-Mobile but the phone that I purchased originally was not unlocked. After returning the phone the only Samsung Galaxy 21 they had in stock was a used one returned and overlook buy geek squad. I ended up purchasing that one for a cheaper rate and so far the phone has been great and works as it should.

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

    Rated 5 out of 5 stars

    Great product

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    Posted . Owned for 9 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Love the phone. User friendly. Sleek design. Great camera quality and screen display is great. It’s a must have for phones.

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

    True flagship.

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

    Great phone came in perfect condition couldn't tell it was previously used at all. Would definitely recommend best buy open box items, ones in excellent condition at least. No micro sd is a bummer and I find the under screen finger print reader far worse than the old reader on my moto g7 power but I have dry hands so that might be the issue here.

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

    Rated 5 out of 5 stars

    Great camera phone

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

    I bought this phone for its cameras. The picture quality is much better than my previous phones. I like that it has an optical zoom and can take wide shots.

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

    Rated 5 out of 5 stars

    Amazing.

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

    I love this phone! Great phone that lets me multi task very well. I love the cameras and features. But it wouldnt let me add samsung care.

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

    Great Phone.

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

    Went from a OnePlus 6t to this phone and it feels like a major upgrade. The phone feels smooth most likely due to the framerate increase. The features that are unique to Samsung's OS version are great. Any S Pen works great as well, I ordered an s pen for a Note S8 and it worked fine with this phone. There are some of the disadvantages such as no micro SD card slot, but I haven't had one on a phone for a while and normally the storage isn't an issue for me.

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

    Rated 5 out of 5 stars

    Expensive but worth it

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

    One UI is always been heavy so makes the phone feel a little slow but overall is a beautiful phone specially the camera quality is amazing

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

    Rated 5 out of 5 stars

    Bigs

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

    This is the greatest phone i ever had. The phone is SUPER fast, and the pictures are very clear. Get this phone. It's a bargain for the money.

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

    Rated 5 out of 5 stars

    Excellent

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

    Excellent phone. Best build quality as far as android phones considered. Great battery life and great screen.

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

    Rated 5 out of 5 stars

    This phone is amazing!

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

    This phone has cameras on it that are top notch. Looks like a professional taking pictures. I absolutely love this phone. Recommend it highly!

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

    My new Galaxy

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

    Excellent quality phone...loving all the features I was so glad to upgrade ...very easy to use and although it was a big expense it was so worth it.

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

    Excellent phone

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

    This is a by far superior phone. In comparison with the Apple iPhone 13 Pro Max, I would pick the Galaxy S21 Ultra any day. The cameras are better, the user friendliness is better, the overall quality is just better. I feel. I could go on…. You won’t be disappointed with this phone. I feel the rounded corners are better than the S22s square corners. I like that there’s not a stylus slot in the phone, like there is in the S22. I will be purchasing another S21 ultra. It’s just that good.

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

    Rated 5 out of 5 stars

    Awesome phone!

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

    I abso love my S21 Ultra! Love the size, how fast it is, the good battery life, awesome camera, and of course Samsungs platform.

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

    Rated 5 out of 5 stars

    Samsung

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

    Camera is amazing 100x zoom. Have had no problems with Samsung. I have 8, 10, and 20 model. They have all been great phones.

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

    Rated 5 out of 5 stars

    New Phone S21 Ultra

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

    Great phone! I love the camera and have taken many pictures with my new phone. It's intuitive and easy to use as well. Great job Samsung!

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

    Rated 5 out of 5 stars

    Out of this Galaxy

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

    So I guess ill start by saying that the camera on this device is SLR quality. Hands down the best on any Smartphone that I've owned.

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

    Rated 5 out of 5 stars

    New phone

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

    My husband loves his phone and the many features. The camera takes such beautiful pictures and the amount of storage is perfect.

    I would recommend this to a friend