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Customer Ratings & Reviews

Your price for this item is $34.73per month
for 36 months; 0% APR

Customer reviews

Rating 4.6 out of 5 stars with 160 reviews

Rating Filter

Rating by feature

  • Display Quality

    Rating 4.7 out of 5 stars

  • Camera

    Rating 4.8 out of 5 stars

  • Battery Life

    Rating 4.5 out of 5 stars

Pros mentioned filter

Cons mentioned filter

92%would recommend to a friend

Customers are saying

Customers enjoy the Galaxy S21 Ultra 5G 128GB's impressive camera quality and long battery life. Positive feedback also highlights the large screen size and smooth 5G connectivity. However, some users find the phone heavy and expensive, while the lack of expandable storage is also a point of concern for a few. The phone's ease of use is also frequently praised.

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 160 reviews
  • Pros mentioned:
    Battery life, Camera quality
    Cons mentioned:
    Weight

    Rated 5 out of 5 stars

    Love it!

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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.

    Love everything about this phone!! Battery and camera are amazing!! The weight of the phone took a couple of days to get used to. My main reasoning to get this phone was the camera, it does not disappoint.

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

    Don't skip it!!!

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

    Love this device this has to be the best device I have had from samsung completely recommended.

    I would recommend this to a friend
  • Pros mentioned:
    Camera quality, Processor speed
    Cons mentioned:
    Weight

    Rated 4 out of 5 stars

    My galaxy 21 ultra review

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

    I really like this phone, it's fast, smooth and an excellent camera. Very responsive to my touch. My dislike is how responsive it is to my touch, lol the screen is soo large that its hard to hold the phone and nagivate without touching another part of the screen you dont intend to. I have accidentally closed things several times because there is no free space to touch the screen while you search for what you're looking for. Secondly the fingerprint built on the screen is mostly accurate but you have to hold the phone very flat and place your finger exactly the way you scanned your finger the first time. I upgraded from a note 9 and I liked my fingerprint scanner on the back of the phone where I would naturally hold it. This phone is very heavy especially in a case and I notice my thumb and hand tires after texting because of the support I have to give while holding this phone. My overall impression is if only it weren't soo heavy I could comfortably enjoy it, but my wrist and fingers get tired from taking the weight of this phone while texting or surfing the web. Looking apart from that, its an excellent phone! Even better for a person with bigger hands. Like my husband has very large hands he likes the weight and size of it. I just hope my carpel tunnel doesn't come back. Honestly the way i hold this phone naturally to type, im thinking the z fold 2 would be better suited for me, albeit i would be giving up the powerful processor or camera for comfort. Welp i guess it comes down to how much the weight and size bothers me. I think my case exacerbates it because it's like a storybook case so when i have the opened piece all the way to the back it feels bulky and unsteady, so that could be the problem as well. I think i will exchange this case for one that covers the back of the phone and start there. But i really like this phone upgrade.

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

    Rated 4 out of 5 stars

    It's good...not great.

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

    So I gave 4 stars. Here are my thoughts. I came from the 4g Note 10plus. This phone was just too sexy to pass up. So now that i got it...first 5g Here in San Antonio is non existent. I get less download speeds than 4g lte with Att. Second the 120 hrz is also non existent. I don't notice a difference from my Note. On the plus side the battery is crazy good. I work 12 hour shifts and with constant texting i get home with 40 percent left. The camera's on this phone are also great. I will admit though....I got this phone because of its appearance.

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

    Rated 4 out of 5 stars

    Great phone but no substitute for a note 20 Ultra.

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

    The S21 ultra is a great product. I wanted to try it out coming from a Note 20 ultra. I preferred the larger footprint and the functionality of the note. Yeah, the camera is nice but I’m no photographer. All in all, the phone has great battery life, takes awesome photos has limited functionality as far as the s-pen. I’d just rather hold on to my note 20 ultra because at least it still has the expandable memory option. That deleted expandable memory option was a huge disappointment for me. Although I see them doing the same for the next note. I wish they would quit following apple! If I’m paying $1000.00 for a product I would like to be able to charge it. It’s like buying a car and having to purchase the battery separately. Come on Samsung!!!

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

    Rated 5 out of 5 stars

    S21 ultra still good

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

    Great camera. Doesnt lag ever since. always been a samsung galaxy user. battery is ok.

    I would recommend this to a friend
  • Pros mentioned:
    5g, Camera quality, Processor speed

    Rated 5 out of 5 stars

    Great pics and features!

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

    I love this phone! The camera and video features are the best! Of course, I have grandkids and take lots of pics! The 5g is very smooth and reliable, the 120mhz video play is amazing! I got this to replace my note9, and am very impressed with the speed and dependability of this handheld PC that happens to be a great phone too!

    I would recommend this to a friend
  • Pros mentioned:
    5g, Camera quality

    Rated 5 out of 5 stars

    Good phone with an awesome camera

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

    The price tag on these phones is getting quite steep. I would not buy this phone for the cost it is but I got it on sale and an ATT promo gave me $800 for my S9 so I am only paying about $7 a month over 30 months for it. If you find it for a good deal you can't go wrong. The 5g in more populated areas is good but I have not gotten the 1gbps they show on tv but 80 mbps download in the suburbs is what I get which is more than enough for streaming whatever you need. The camera is also really good. I am no professional photographer but the quality of the pictures it takes looks really good. You can zoom up to 100x that would be awesome with a tripod to steady the phone. Overall I am very happy with the phone and my only knock on it is the price. With that said you are likely to find a better price on the phone with Best Buy than with ATT so purchase through Best Buy. Plus you get points.

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

    Rated 4 out of 5 stars

    Samsung Galaxy 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. Ive had samsung s series or the note phones since the galaxy s2 and by for this is the best. The camera alone is untouched by no other. The only draw backs is just like any other samsung is that they only give you a 2 to 3 year software update. And for the price you pay for this phone is a big draw back for me. Honestly i had the note 9 prior to this phone in emmaculent condition but they didn't offer anymore software updates for it and some of my apps looked weird and ran funny so i traded my phone and got 800 dollars credit for it and bought this one on sale for a thousand bucks so it was a great deal for me. But if you buy this phone at regular cost it would run you close to 1300 bucks. But you do have to keep in mind most new phones even the qhat use to be cheap phones now cost a lot.

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

    Rated 5 out of 5 stars

    Awesome camera, good batter life

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

    Although the S21 was replaced by the S22, this is almost as good, my wife likes it. It has a awesome camera and good battery life, and it is fast, what else can you ask for.

    I would recommend this to a friend
  • Pros mentioned:
    Camera quality, Processor speed, Screen size

    Rated 5 out of 5 stars

    Samsung Galazy 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.

    The pictures are great. The screen is bigger. Makes it easier to see things. Sending pictures goes through a lot faster than our old Galazy. Charges really fast

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

    Rated 5 out of 5 stars

    LOVE IT - GREAT CAMERA!!

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

    I really like this phone - the screen is larger and it is pen compatible. The battery lasts for at least 2+ days with normal use. The camera is amazing!!!

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

    Rated 5 out of 5 stars

    S8 ultra 5g

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

    Amazing phone, I had a s8+ and upgraded and this phone truly Amazing. Speakers are very loud, cameras are unreal the screen is Phenomenal and the battery life in extremely good I mean way to good. I start my day at 8 am and usually go to bed around 11:30-12 and I usually am around 20 % battery life. With my old phone s8+ I would have to charge it around 3pm and then 8 pm and then finally when I get to bed. Using it all day so the battery life is 3 times better in my own testing. Don't think about it just buy this phone I've tested the IPhone 12 pro max and it's child's play compared to the beast.

    I would recommend this to a friend
  • Pros mentioned:
    Camera quality, Processor speed, Screen size

    Rated 5 out of 5 stars

    A++ Samsung Galaxy

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

    I love everything about this phone. Camera is better than I expected. Everything works faster and I love its screen size. Glad I made the upgrade.

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

    Rated 5 out of 5 stars

    Pete

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

    Just Love It. Faster response time. Great 5G network in all areas. More than any thing the camera is to die for. We feel like movie producers with the gadgets on the camera options. Just shocking with the slow mode how we slow things down to really appreciate, things we normally would miss at regular speed. If you do purchase the Galaxy S21 Ultra 5G. You will not be disappointed. Wife and I just are crazy over it. Best purchase by far.

    I would recommend this to a friend
  • Pros mentioned:
    Processor speed

    Rated 5 out of 5 stars

    Samsung

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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.

    This has a great phone. Done everything ive needed it to do.

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

    Rated 5 out of 5 stars

    Great phone

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

    love the camera, battery last long and charges quickly. Upgraded from Note 9.

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

    Rated 5 out of 5 stars

    S21 Ultra is the KING of everything in Android wor

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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 first Samsung smartphone I'm literally impressed with. From solid One UI software, 4 cameras, 100x space zoom, battery life extends beyond my expectations! I'm a longtime Pixel owner, but this phone beats Pixel in almost EVERY area, except one thing, pure Android. Yes, the night mode on S21 Ultra crush Pixel's highly successful Night Sight. Highly recommended getting this phone!

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

    Rated 5 out of 5 stars

    Fast and loaded with features

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

    It can handle any task in throw at it quickly. It's good at multitasking. Camera is Awesome! Screen is great. Sound is good. Only drawbacks are non removable battery and sd card. I don't like the curved even edge either though. The tend to crack easier when dropped.

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

    Rated 5 out of 5 stars

    A great new phone!

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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 very much enjoying my new Samsung - Galaxy S21 Ultra 5G phone. There are a number of improved features over my last Samsung phone which was the latest and greatest less than 3 years ago. Android has some issues I don't care for, but Samsung has good products despite that.

    I would recommend this to a friend