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Customer Ratings & Reviews

Your price for this item is $600.99
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The comparable value price is $1,199.99

Customer reviews

Rating 4.6 out of 5 stars with 196 reviews

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Rating by feature

  • Display Quality

    Rating 4.8 out of 5 stars

  • Camera

    Rating 4.9 out of 5 stars

  • Battery Life

    Rating 4.7 out of 5 stars

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Cons mentioned filter

89%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 196 reviews
  • Pros mentioned:
    Battery life, Camera

    Rated 5 out of 5 stars

    Proven winner

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

    I love this phone. Battery life is still amazing after owning it for over a year and a half. Camera is hands down amazing. Makes iPhone users jealous with the zoom features. I don't want to upgrade it because it's still a awesome phone. Photos are of the of a cabin across the lake and half way up the mountain. You can't even see the cabin in the picture from the lake shore. It zooms in very far. I also use the zoom feature on this camera as a spotting scope at the gun range.

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

    Rated 5 out of 5 stars

    Great phone

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

    My favorite phone!! Love the matte finish very fast. Great camera plus the s pen support ..i am coming from the note 20 ultra. And i love this phone and have not looked back lol most importanly. I love this color I also bought the laptop to match .

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

    Rated 4 out of 5 stars

    Loved this phone but shatter after awhile

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

    Loved my s21 ultra really nice phone amazing camera but shattered after a few months still really nice phone amazing display 120hz feels like a dream on Pokémon go

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

    Best Samsung 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.

    Till this day i vote this phone the best out of all the Samsung phones ive had. Great screen resolution very easy to manage. Beautiful color options . 10/10

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

    One of the bests cellphones of this year. I love the refresh rate of the screen. Is so smooth. Is a big phone, but not as big as the iPhone 12 Pro Max. I really like the cameras, the have a really good quality.

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

    Samsung lover

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

    Fragile screen. I have been with the Samsung note from 5 to 20 and i switch to galaxy s22. It just falls from my hand to the table and the screen cracked. It was spectacular... unbelievable...

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

    Do NOT get there S21 Ultra!

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

    Worst phone I've ever owned! This phone is cheap and has lousy battery life. Plastic with only 5G or switches to LTE+ only! If you have wifi enabled when you're in the car you will not be able to connect to anything using mobile because the wifi takes priority evidently! You have to manually disable wifi to connect to mobile! I hate this phone with a passion and plan on taking it to the range! Verizon or Samsung needs to fix this major flaw immediately!

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

    Very frustrated customer

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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.

    Customer support can do nothing of professional help when the product you order online and is shipped is not the condition that was ordered and expected. It was an open box excellent condition order. They don't try to make the order good and make changes that are not helpful.

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

    Rated 5 out of 5 stars

    Awesome.

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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 camera, love the design and battery last longer.

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

    Rated 5 out of 5 stars

    Long battery, great camera!

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

    I've had this phone for over a year now and have had zero issues! I use it for work and it lasts long shifts no problem! And the camera quality 9/10 times leaves me having the nicest quality out of any group of people I'm with; can't complain!

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

    Rated 5 out of 5 stars

    What a Monster

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

    I have been using this phone for a while. I had an s10 and figured it was time to upgrade. So I chose Samsung's new flagship. The best they had to offer. After a few months of using it, I will say that is isn't bulky, just a bit large. If that's your thing, more power to you. The phone's display, camera and battery life as well as performance on streaming and most games is wildly impressive. Low light, no light, too much light, the cameras don't care. Couldn't be happier.

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

    Rated 5 out of 5 stars

    I am very satisfied with my new phone

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

    I am very satisfied with my new phone. Reasonable price, long last battery, excellent condition, fast delivery! My overall expectations have been fascinating!

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

    Rated 5 out of 5 stars

    Great 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.

    Excellent phone. That has all the checks in all the boxes. Fast and sleek with a great camera. Served me well.

    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, 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:
    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:
    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

    High standard and sustainable cell phone

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

    Quality and original Sumsung Phone. Very durable with excellent capabilities. High class camera, excellent voice and efficient call quality.

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

    Rated 5 out of 5 stars

    A great choice, but expensive

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

    This is a great phone if you can get it for the $800-$900 range. It's a heavy bugger but comes through in spades with its cameras.

    No, I would not recommend this to a friend