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Customer Ratings & Reviews

Your price for this item is $799.99

Customer reviews

Rating 4.5 out of 5 stars with 69 reviews

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Rating by feature

  • Display Quality

    Rating 4.7 out of 5 stars

  • Camera

    Rating 4.7 out of 5 stars

  • Battery Life

    Rating 4.3 out of 5 stars

Pros mentioned filter

Cons mentioned filter

88%would recommend to a friend

Customers are saying

Customers are satisfied with the Galaxy S21 5G 128GB's camera quality and battery life, with many praising the excellent picture and video capabilities and long-lasting power. The screen size is also generally well-received, although some prefer a more compact device. However, the lack of a headphone jack and the high initial price point are common criticisms.

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 69 reviews
  • Pros mentioned:
    Camera quality, Processor speed, Screen size
    Cons mentioned:
    Headphone jack

    Rated 4 out of 5 stars

    Stellar value for the phone, but has antifeatures

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

    Coming to this from a longtime Apple user, this is generally quite the upgrade. The screen is simply unparalleled. Super saturated colors and very bright. Snapdragon 888 handles anything that I throw at it and the high refresh rate runs everything smoothly. Overall, it's a good complete package that is extremely enjoyable. Gorilla Glass Victus is surprisingly capable, I've generally kept my phone scratch-free throughout its life with no screen protector. The camera is the best I've ever used on a phone. That said, there are some annoying antifeatures that prevent this from going to a 5 star. It's not particularly friendly for people transitioning to this from Apple (or for anyone who doesn't own a USB-C power brick), as it only comes with a USB-C to USB-C cable. I can't uninstall certain preloaded apps. There's no microSD or headphone jack.

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

    Rated 3 out of 5 stars

    Not an upgrade for previous S models.

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

    Compared to older versions you are getting less for about the same price. S7, S8, S9, S10, S20 series all had MFT, SD Card slots, 2k display, heart rate monitor, some had iris scanner, 3.5mm audio jack, advance download (used wifi and mobile data to accelerate download), more flexibility with the Hotspot settings, among other things. Samsung has kind of gone backwards removing all these features and only focusing I guess on camera. If you don't need 5G stay with your older Galaxy S phone for now and wait it out. In my opinion losing 3.5mm audio jack, SD card slot, and MFT for 5G and 120Hz display is not worth it.

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

    Rated 5 out of 5 stars

    Great little phone

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

    The S21 5g is great if you don't want a huge phone. It is just as fast as the ultra but the size is easier to use one handed. Camera is great and I haven't had any problems with phone. For how I use the phone the battery last easily 2 days.

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

    Rated 5 out of 5 stars

    Never disappointed

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

    Having been a Samsung user ever since I started using a smartphone, I've never been disappointed by their phones. You can just do a lot more compared to an iPhone. Cameras are always good. The overall user interface of the phone to very easy to use even for a new user. This new phone is much smoother experience when you use it.

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

    Rated 5 out of 5 stars

    Great phone

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

    Very light. Battery life is excellent. Perfectly fits my Galaxy watch. Th size is just about right; not too big, not too small. Feels good in my hand

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

    Rated 5 out of 5 stars

    Satisfied Customer

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

    This phone is great! Excellent pictures and video. Battery life is great, I'm still learning all the things it can do.

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

    Rated 5 out of 5 stars

    Nice deal and price

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

    Light weight. Fast. Tmobile tradein promos. High refresh rate.

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

    Rated 4 out of 5 stars

    Good phone for price, but not expandable.

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

    Great phone for the price. Was offered with enhanced trade-in on older phones, so made the deal worth it. Good picture quality, decent, speed. Drawbacks are the limited memory (128GB) and lack of expandability. Also lacks port for earbuds, so must use Bluetooth.

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

    Highly recommend

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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.

    Great phone to have, i upgraded to this one from the s8+ and it has been just as great to own as its successors. Price on it is also very reasonable for this high performing, durable, phone!

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

    Rated 1 out of 5 stars

    Not feeling it

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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 was defective from the moment I bought it. None of the features worked properly and I even tried to return it but I wasn't able to because it was already activated. Smh however after two years it finally works as it should. Literally out of nowhere it reset itself and starting working properly after TWO YEARS!! Would definitely not recommend! Plus it was expensive! I liked my Samsung Galaxy S10 better than this one. I hated when it broke. Then I had to settle for this piece of crap, for $700-800! That's crazy!

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

    Rated 4 out of 5 stars

    Quality phone.

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

    Big improvement over my old phone. Much faster and photos are great. Wish the battery lasted longer.

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

    Good quality

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

    Good phone for the price. I had 2 LG phones after owning a Galaxy and an iPhone. I still miss the LG phones but this was a good replacement.

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

    Rated 5 out of 5 stars

    Great Purchase

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

    Super fast, light weight great battery. Optical fingerprint sensor much better than A71. Only missing sd card and headphone jack.

    I would recommend this to a friend
  • 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.

    love this phone and I still have it...I'm a galaxy fan for life...

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

    Rated 5 out of 5 stars

    Good

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

    Excellent and very fast. But the price goes down very fast.

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

    Rated 5 out of 5 stars

    Samsung S21

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

    Former Samsung Galaxy owner, then Google Pixel for a few years, now back to Samsung. Between the two I really don't notice much of a difference but the specs on this phone are better than a comparable Pixel at the moment. The battery life is really amazing. Also, the Phantom Gray was $300 less than the black...I can live with Gray ;o)

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

    Phone 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.

    This is a phone. Phone good. Samsung is good. Thank.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Great phone

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

    This is a high quality phone. Lots of storage and doesn't slow down.

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

    Rated 5 out of 5 stars

    Worth the money spent

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

    One of the best phones I have ever used. Long-lasting battery and great camera

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

    Rated 4 out of 5 stars

    Good flagship Galaxy phone

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

    Good phone with light weight. Good battery, and beautiful screen. Love it

    I would recommend this to a friend
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