Save up to 50% on 3-Day Sale deals.Ends 12/14.Shop now

Skip to content
Gift Ideas
Main Content

Customer Ratings & Reviews

No content
  • Front. Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black.
  • Alt View 11. Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black.
  • Alt View 12. Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black.
  • Alt View 13. Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black.
  • Alt View 14. Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black.
  • Alt View 15. Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black.
  • Alt View 16. Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black.
  • Alt View 17. Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black.
  • Alt View 18. Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black.
  • Alt View 19. Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black.
  • Alt View 20. Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black.
  • Alt View 21. Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black.
  • Alt View 22. Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black.
  • Alt View 23. Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black.
  • Alt View 24. Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black.
  • Alt View 25. Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black.
  • Alt View 26. Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black.
  • Alt View 27. Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black.
  • Alt View 28. Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black.
  • Alt View 29. Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black.
  • Unboxing - Samsung Galaxy S23 Ultra & Book3 Pro 360 video 2 minutes 04 seconds
  • Galaxy S23 Ultra Pen Phantom Black 3D Spin Video video 0 minutes 10 seconds
  • Galaxy S23 Ultra Phantom Black 3D Spin Video video 0 minutes 10 seconds
  • Galaxy S23 Series Premium Design Video video 0 minutes 27 seconds
  • Galaxy S23 Series Camera Feature Video video 0 minutes 32 seconds
  • Galaxy S23 Series Powerful Performance Video video 0 minutes 27 seconds
  • Galaxy S23 Ultra Gaming Video video 0 minutes 30 seconds

Samsung - Galaxy S23 Ultra 512GB (Unlocked) - Phantom Black

Model:
SM-S918UZKFXAA
SKU:
6529724
Highly rated by customers for:
Your price for this item is $438.99
Clearance
The comparable value price is $1,379.99

Customer reviews

Rating 4.8 out of 5 stars with 605 reviews

Rating Filter

Rating by feature

  • Display Quality

    Rating 4.9 out of 5 stars

  • Camera

    Rating 4.9 out of 5 stars

  • Battery Life

    Rating 4.8 out of 5 stars

Pros mentioned filter

Cons mentioned filter

97%would recommend to a friend

Customers are saying

Customers are satisfied with the Galaxy S23 Ultra 512GB (Unlocked) for its excellent camera quality, long battery life, and powerful performance. They appreciate the built-in S Pen and stylish design. However, some customers are disappointed with the lack of a microSD card slot, the high price, and the heavy weight of the phone.

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 19 Showing 361-380 of 605 reviews

  • Samsung Galaxy s23

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

    Great product. Great updates. I love Samsung Galaxy.

    I would recommend this to a friend

  • Great phone

    |
    |
    Posted . Owned for 10 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I liked the phone very much but unfortunately I have grown to use to the Apple iPhone so I give to a friend of mine. They love it very much

    I would recommend this to a friend

  • Great Phone Samsung

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

    Understandinv that the phone world has slowed on innovation and new ideas I think companies have for sure got the point that polish is the best way to go and samsung did just that.

    I would recommend this to a friend

  • Love the phone

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

    I really like the phone. I liked my sales girl too!! She was very helpful she had to go home. Then another employee helped transfer my stuff he was also very nice. I love the phone.

    I would recommend this to a friend

  • Solid upgrade from the S21

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

    We've had no problems with the phones that we've bought. I definitely recommend getting the unlocked version over the carrier's version because you don't get as much bloatware.

    I would recommend this to a friend

  • Samsung galaxy S23 Ultra

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

    The phone came as advertised!! It was such a great open-box deal!! I would recommend it to anyone!!

    I would recommend this to a friend

  • Awesome phone

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

    I have I have been using this phone for the last year and this is awesome phone

    I would recommend this to a friend

  • Samsung 1T unlocked

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

    Im glad i got the 1T unlocked before they stopped selling them. It has been a great phone so far and i have lots of space. It runs great and pen is definitely a plus fpr writting notes

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

    Camera

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

    Great camera and camcorder. Good upgrade from s21 ultra.

    I would recommend this to a friend

  • Good

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

    Switched from IPhone 12 pro max to S23 Ultra, always knew how nice an android is but this phone excedded my expectations

    I would recommend this to a friend

  • Phone review

    |
    |
    Posted . Owned for 8 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This phone is really great for photo taking. Has a good display too.

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

    Samsung S23 Ultra

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

    Had for a few months, still working great. Battery is good.

    I would recommend this to a friend

  • Phone Upgrade

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

    Ive had the same phone for about 5 years and i finally upgrade! So many great features and a smooth purchasing process!

    I would recommend this to a friend

  • Delightful

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

    Excellent upgrade from the S20. Faster and clearer. A delight to use. Enough space for pictures and documents.

    I would recommend this to a friend

  • two enthusiastic thumbs up

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

    This phone has exceeded my expectations. I would highly recommend for anyone who has enjoyed Samsung products in the past.

    I would recommend this to a friend

  • Perfect

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

    Meeting all my expectations. My over all experience with this product, blows my mind. Definitely the the best purchase I have made

    I would recommend this to a friend

  • Samsung galaxy s23 ultra

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

    I got this for myself. I am very well satisfied with the product and was very happy with the customer service.

    I would recommend this to a friend

  • S23 Ultra

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

    Not a fan of curve screen, otherwise phone is great.

    No, I would not recommend this to a friend

  • Much more of an upgrade than expected...

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

    Huge improvement over my old S21 Ultra in terms of battery life and performance. First time I've felt happy with the battery endurance. Camera improvements are nice too.

    I would recommend this to a friend

  • Galaxy S23 Ultra

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

    It has been a month since I bought Galaxy S23 Ultra. I'm really enjoying new features, high speed responsiveness and light.

    I would recommend this to a friend
Page 19, Showing 361-380 of 605 reviews
Sign in or Create Account

Get the latest deals and more.

Best Buy appLearn more
Share on YouTubeShare on InstagramShare on TikTokShare on FacebookShare on PinterestShare on X
Best Buy Canada
AccessibilityTerms & ConditionsPrivacyInterest-Based AdsState Privacy RightsHealth Data PrivacyDo Not Sell/Share My Personal InformationLimit Use of My Sensitive Personal InformationTargeted Advertising Opt OutCA Supply Chain Transparency Act
In-store pricing may vary. Prices and offers are subject to change. © 2025 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.