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Customer Ratings & Reviews

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Customer reviews

Rating 4.6 out of 5 stars with 610 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 4.6 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 1 Showing 1-20 of 610 reviews
  • Pros mentioned:
    Battery life, Camera

    Rated 5 out of 5 stars

    Recommended

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

    Nice phone. Fingerprint sensor not always working is an issue. My wife has same issue thiugh on her iphone 14 ultra. No rear sensor for AFIB and oxygen levels like my S8 did. A failure by Samsung here. Cameras are very good, 100x zoom allows me to take great pictures of the moon. Macro feature is also phenomenal. Battery lasts forever.

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

    Galaxy S21 Ultra

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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.

    I wasn't exactly sure which type of phone to purchase when I first walked into Best Buy. I was deciding between the Google Pixel 5 and Samsung Galaxy S21. However, after talking more to the best buy associate, Taylor, I came to realize that the Galaxy S21 Ultra was tailored more for my needs. Thanks to Taylor, I realized that the Ultra existed and was capable of producing such high resolution photos, along with special features such as the director's view. That was enough to sale it for me. Although I was a little worried about how large the phone would be compared to my prior one, I do not regret the decision. Overall, I love the phone's capabilities and I'm so impressed by how well the photos turned out on my recent hike! I am so fortunate to have been helped out by Taylor in my phone selection process. Taylor was easy to talk to and provided exceptional customer service by going out of her way to answer all of my questions, as well as offer honest advice in my purchasing decision.

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

    Rated 5 out of 5 stars

    Crossed over to the dark side!

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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.

    Switched from Apple over to android and wanted a phone that was comparable. So far I've loved using it. Just a few days in and I love the feel and the camera on this thing!

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

    mr esayas belay

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

    it's very good product service i needs to get back iPhone pro 14 bustbuy soon

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

    Rated 5 out of 5 stars

    Truly Amazing

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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 is beautiful and the cameras are amazing. I took a photo at the lake at night.

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

    Rated 5 out of 5 stars

    The best phone you can get.

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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 is fast and snappy with one of the best features being it's camera. Being able to take pictures of birds up ton the sky really shows how good it is. Worth every dollar.

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

    Rockstar of Phones

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

    Extremely happy with the purchase of this rockstar phone. The build of the phone, software updates, camera, performance, everything is top notch. S-Pen support is an added advantage.

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

    I absolutely love this phone. The camera on it is amazing. Absolutely the best phone ive ever had.

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

    Rated 5 out of 5 stars

    Camera is fantastic!

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

    By far the best camera phone I've ever owned! Buy it!

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

    Samsung

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    Posted . Owned for 11 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I love how smooth the new software runs and that I’m able to use my s pen on it still!

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

    Going to buy one for my Girlfriend, too!

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

    This device is Amazing! The Ultra has an upgraded telephoto lense that will capture Incredible details on the Moon!!

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

    Rated 5 out of 5 stars

    Amazing device

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

    It has pretty decent battery life, but thats just about the only thing i dont love about this phone. The design is amazing, the cameras are really great, and the display is absolutely beautiful. Such a great phone for its time.

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

    Rated 5 out of 5 stars

    Sansung Galaxy S21

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

    The Samsung Galaxy S21 Ultra 5G 128GB is a powerhouse of a smartphone. With its stunning 6.8-inch Dynamic AMOLED display, the visuals are breathtaking, and the 5G connectivity ensures fast internet speeds. The 128GB of storage provides ample space for apps.The camera system is great, capturing sharp and vibrant photos, and the 100x Space Zoom is a fun feature to play with. The phone's performance is top-notch, thanks to the Snapdragon 888 processor and 12GB of RAM. Overall, it's a great device for those who demand the best in terms of display, camera, and performance.

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

    Rated 5 out of 5 stars

    SAMSUNG 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.

    I upgraded from the galaxy S10+ to get this phone and WOW what a huge deal...... I'm talking about speed, the refresh rate, everything about this phone is just great. The camera quality is something that people should definitely look into if you're looking to get this phone you won't go wrong. The laser focus isn't the best when zoomed to 100. But it gets the job done. I go to work from 7:00 in the morning and at the end of the day I have at least 30% left of battery. When I get off work because I'm not on my phone as much I have 80% battery. I love what Samsung has done with the battery. One thing I wish Samsung would have done was make it easier to transfer an older watch to the newer phone I had to buy a new watch because it would not link with this one and I tried everything that I could. Overall great phone!!!!!

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

    Rated 5 out of 5 stars

    Great phone

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

    Switched from an iphone and i am beyond happy. Have had for almost a year now and i still love it. Center screen did crack right down the middle and im unsure why but insurance covers the screen replacement. Camera is great, i only charge it every couple days. All around a great phone.

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

    Rated 5 out of 5 stars

    S21 Ultra

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    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is an awesome Phone. very fast and reliable. Camera is outstanding and battey life is imressive. Only thing is that this cell phone is very top hevy. Only other thing to note is that it relies o Bluetooth for headchones, no ear phone jack exists on cellphone.

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

    Rated 5 out of 5 stars

    Believe the hype

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

    This is my first modern phone. (Everything was either a cheap knock off or a hand me down). The camera is amazing, Samsung wallet is super convenient, the UI is really simple and highly customizable. You can set it up so that it's all at your fingertips. The battery lasts me the whole day; the memory size is good since I have a plethora of apps that I use (mainly games) speaking of, the crispness of the screen makes games and videos look amazing (even if on YouTube it's only 360p) The phone rarely overheats (only when I'm charging it and playing a game on max settings). I'm sure this phone will last me for the next 5 years (when I plan to upgrade again).

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

    Rated 5 out of 5 stars

    Best Samsung phone yet.

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

    Few takeaways: 1. The Galaxy S21 Ultra offers the best premium Android experience, thanks to powerful hardware and a more refined software that closely integrates Microsoft services and the connected ecosystem experience. 2. The high-resolution primary camera, coupled with an ultra-wide lens and two telephoto lenses for zoom, offers a versatile photography and videography experience. 3. Elegant design, classic black finish, stellar display and a battery that lasts a day, all make the Galaxy S21 Ultra a fully loaded smartphone for power users.

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

    Rated 5 out of 5 stars

    Love

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

    Amazing cellphone, fast, audio, camera. Everything is great.

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

    Rated 5 out of 5 stars

    Samsung makes the best phone's

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

    Good camera, good battery life, love all the features

    I would recommend this to a friend
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