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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 3 Showing 41-60 of 986 reviews
  • 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
  • Pros mentioned:
    Battery life, Camera

    Rated 5 out of 5 stars

    Worth the extra cash over the Pixel 6 Pro.

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    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I had this then unfortunately traded it in for the Pixel 6 Pro. At first I was all team Pixel but after a few months with the 6 Pro I've been regretting my decision. Battery life, screen, performance, etc are all better on the Ultra. The biggest difference is the ultrasonic fingerprint sensor which is far superior to the Pixel optical sensor. If Google updates the sensor things would be more equal. Nightmode shots are quick, unlike the Pixel 6 series that take forever to process for the same result. Samsung has made things far more equal with their quicker software updates. Not as fast as Google but more than acceptable. I have some fantastic shots that I've taken with this phone travelling all around Michigan's Upper Peninsula. The camera won't replace a dedicated camera but for 90% of what people shoot this is the camera I'd want. The only reason I'm not getting rid of my Pixel 6 Pro and getting another S21 Ultra right now is the S22 Ultra is around the corner.

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

    Rated 5 out of 5 stars

    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 most powerful phone on the market. The camera is absolutely beautiful, the display is amazing and the phone just breezes through everything. The best phone on the market; its on the big side but its worth it.

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

    Rated 5 out of 5 stars

    Samsung going all in

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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'm gonna say that this is the best 2021 flagship I've owned to date. It checks all a 2021 flagship is capable of. I'm talking 2X Dynamic AMOLED display with a adaptive refresh rate of 120 HZ, Dolby Atmos sound, Excellent cameras, beautiful modern design and color (Navy is the one I have), and lastly not too much of cons to complain here. I mean Samsung already eliminated the Micro SD card expansion, not a huge deal breaker for me I already moved on to cloud storage and honestly I don't blame them removing chargers cause this is how the industry is going and same with apple too. But other than that it was a solid buy for me to get my monies worth. Thank you samsung for making this phone a solid buy for everyone who loves what you do. That is my opinion about the Samsung Galaxy S21 Ultra 5G.

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

    Rated 5 out of 5 stars

    Perfect 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.

    2 years with this device and still like new! Minors scratches. Always try to look for a protector for the camera.

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

    Rated 5 out of 5 stars

    Best samsung phone ever

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

    I love how fast this phone is for my everyday life. When i get to work I use samsung dex to get my day started. Then I go out to the shop floor and i use it for all my documents. The photo quality is out of this world as well. All around great phone. I have no complaints

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

    Rated 5 out of 5 stars

    Samsung has done it again

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

    Camera is fantastic On this phone! Battery life is also great. The phone is a little big for me but I liked everything else about it. I still would recommend this phone to anyone interested in it.

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

    Rated 5 out of 5 stars

    Perfect phone

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

    This phone is phenomenal. After 2 years I have absolutely zero real reason to upgrade. The picture quality is awesome. Battery still lasts well over a day of my use. Display is perfect.

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

    Rated 5 out of 5 stars

    Make A Smaller One, Please!

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

    I loved this phone so much. Super fast, amazing screen and awesome camera. I am 5’2 and have hands smaller then average. I knew this phone was a behemoth but convinced myself it was way worth it. I got 2 pop sockets (to brace it correctly) and oh man it was awesome for a while. However after the 4th time I dropped it on my face and ended up looking like an MMA fighter I decided to reevaluate my phone needs. Then my doctor mentioned my TFCC wrist injuries were flaring pretty badly and I couldn’t help but think this was exacerbated by the overpowered (in a great way) brick I was carting around. Is this phone super gorgeous? Yes! Incredibly fast with excellent processing? Yes! The best camera I’ve ever used? Yes! Meant for small people with easily damaged faces? No! Not Samsung’s fault at all, this is easily a 6 star phone and if you have normal-to-large hands this is great for you. For those of us who are handsize-challenged, we’ll just have to wait for companies to realize small people would like incredible phones, too. I mean, Titans aren’t the only people who want that beautiful screen and phenomenal processing, right?

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

    Rated 5 out of 5 stars

    Amazing Upgrade from the S8!

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

    I held onto my Galaxy S8 for as long as I could get updates for it. I was tempted to switch to the iPhone 13 Pro, but this phone went on sale for the same price as a regular priced S21. I'm really glad I went for this phone. The camera is a HUGE improvement compared to the S8. Low light and everyday pictures are just flat-out amazing! While I do miss the headphone jack (dongle took care of that), the speed, the processor and the large battery (a day and a half to 2 days with my normal use) more than make up for it. So far, I'm not regretting my decision to stick with Android with this great phone from Samsung!

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

    Rated 5 out of 5 stars

    Ram and camera

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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.

    Very nice phone, great features, and the camera is very nice

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

    Rated 5 out of 5 stars

    Amazing

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

    Upgraded from the Note 10+ and I am just amazed with the cameras. The pictures are absolutely beautiful. The new features that the S21 Ultra has in itself are amazing with the capability of using the Spen like the Note. I really like love this phone. I would highly recommend!!

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

    Rated 5 out of 5 stars

    Good Phone

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

    This phone has been awesome. The camera is great. Battery life is great for the way I use it. The camera settings can leave you wondering why you bought it but over all is good. I am not saying the camera is bad rather I do not understand the settings as well. Using the video recording is perfect. The camera side while taking pictures low light inside needs some work. I take pictures of bands live and this phone will make reds extremely red. The zooming features 100* are cool.

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

    Rated 5 out of 5 stars

    Heading back to Samsung

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

    Had to come back to Samsung as my LG V60, after 1 year, began having major issues. Never wanted to come back because of the ever increasing prices as the years went on. However, with my past experiences with Samsung phones, I knew what to expect instead of going to OnePlus type phone. The only regret is that it's 128GB. My downloaded iTunes and preinstalled software have already reached 58GB. But I needed something fast, unlocked, and great quality before my phone died.

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

    Rated 5 out of 5 stars

    Really good 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.

    I have had this phone for about 2 years now and it is my favorite phone. I have taken this backpacking and takes really good photos

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

    Rated 5 out of 5 stars

    Hardware A+, Software B+

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

    Right off the bat..the cameras are really good. I purchased this for my wife and she upgraded from a Note 9. The screen is objectively just the best. Wish Samsung would dial it down with their over the top software and keep it vanilla stock android but I guess folks that have been buying Samsung products over the years like the extra features and you can set it up to use the app of your preference. So that negates the redundant apps that Samsung puts on there. Software aside, the hardware is amazing. Screen, battery, cameras and even the phantom black color is brilliant. The finish is not a fingerprint magnet.

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

    Rated 5 out of 5 stars

    Samsung - Galaxy S21 Ultra 5G 128GB (Unlocked) - N

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

    Overall great phone. The camera has a learning curve compared to other phones since it has so many different options to play around with. The only down-side of the phone is that the fingerprint sensor on the screen works very poorly compared to other phones that have fingerprint sensors. Screen size is huge so I would recommend definitely getting an S Pen if you're unable to navigate a large phone with 1 hand. Battery life lasts way over 1 day without charging.

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

    Rated 5 out of 5 stars

    The ultimate iPhone Killer

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

    I got this phone unlocked which honestly it gives me the flexibility to change carriers at ease. I dropped my phone accidentally coming out of the store and I will say no dent nor scuffs at all. I wondered what in the he'll happened here. I was honestly shocked thinking it had broken. Yet it did. Not at all. I love the phone, the camera it is absolutely gorgeous, I have been using the phone for a week already and honestly it made me feel love again. . . But that is not all. It cost me an arm and a leg. It is great for being a flagship but it is too expensive in my opinion. I love everything about this phone. I am still finding new features for this phone. And I changed from an I phone. Honestly I was going to get an iPhone yet there were none available at the time and still aren't. I will say this with ease. This is the ultimate iPhone killer.

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

    Rated 5 out of 5 stars

    Awesome phone with great camera

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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.

    Awesome phone with great camera. Picture quality is great. The phone is very stable with no issues observed so far.

    I would recommend this to a friend