48-Hour Flash SaleEnds Tuesday. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product SearchGo to Footer
Main Content

Customer Ratings & Reviews

No content
  • Front. Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Phantom Black.
  • Alt View 11. Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Phantom Black.
  • Alt View 12. Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Phantom Black.
  • Alt View 13. Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Phantom Black.
  • Alt View 14. Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Phantom Black.
  • Alt View 15. Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Phantom Black.
  • Alt View 16. Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Phantom Black.
  • Alt View 17. Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Phantom Black.
  • Alt View 18. Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Phantom Black.
  • Alt View 19. Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Phantom Black.
  • Alt View 20. Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Phantom Black.
  • Alt View 21. Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Phantom Black.
  • Alt View 22. Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Phantom Black.
  • Alt View 23. Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Phantom Black.
  • Alt View 24. Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Phantom Black.
  • Alt View 25. Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Phantom Black.
  • Alt View 26. Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Phantom Black.
  • Alt View 27. Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Phantom Black.
  • Alt View 28. Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Phantom Black.
  • Alt View 29. Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Phantom Black.
  • Unboxing - Samsung Galaxy S23 Ultra & Book3 Pro 360 video 2 minutes 04 seconds
  • Unboxing - Samsung Galaxy S23 Ultra & Book3 Pro 360 video 2 minutes 00 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 256GB (Unlocked) - Phantom Black

Model:
SM-S918UZKAXAA
SKU:
6529723
Highly rated by customers for:
Your price for this item is $304.99
Clearance
The comparable value price is $1,199.99

Customer reviews

Rating 4.8 out of 5 stars with 2642 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 praise the Galaxy S23 Ultra 256GB (Unlocked) for its outstanding camera quality, overall performance, and battery life. Many appreciate the fast processor, screen size, and the inclusion of a stylus. Some customers mention concerns about the phone's weight, RAM, and connectivity issues.

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 85 Showing 1,681-1,700 of 2,642 reviews
  • Pros mentioned:
    Overall performance

    The best costs the most.

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

    The best phone on the market. If you have $1300 you need to get rid of, its a solid option.

    This review is from Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Green

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    S23 ULTRA

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

    Best PHONE ever. Better than S22 Ultra. Dnt buy if you are not going to use all the features.

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Samsung

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

    Very good price for Samsung 23ultra, my daughter was so happy

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Wow

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

    Its a nice feeling having this phone as it gives me what having always love in a phone.

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    S23

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

    Overall nice phone, great upgrade from the note 9. will always be a samsung user

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

    Amazing

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

    This phone is amazinf and the camera is hy far the best. The moon shotd are so unreal.

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

    Galaxy s23 ultra

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

    Really good phone I love it graat camera ,size of phone, color options definitely LOVE IT

    This review is from Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Lavender

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

    Great Phone

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

    Has a good battery life perfect for graduation pics bought it as a gift grandma loves it.

    I would recommend this to a friend

  • Great buy!!!

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

    Great mobile, got it at a great price. Best in the market

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

    Great better than apple iphone 14 pro max

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

    The battery is good. The specs are amazing. Best phone. #SamsungGalaxyUltra23

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

    Best phone ever

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

    Nice design and has best camera quality and charges quickly

    This review is from Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Lavender

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

    Would recommend

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

    The phone is great. Had no problems. Upgraded from the 21 ultra. The battery is phenomenal.

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

    Galaxy S23 Ultra

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

    Love my new phone. Fantastic camera, it is bright and colors come through awesome on it.

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    The best

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

    My wife has the iPhone 14 and I can tell you first hand that this Samsung is better.

    This review is from Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Green

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

    Awesome

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

    This phone is awesome the quality of the camera is great!!

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Samsung galaxy s23 ultra

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

    The phone is amazing. The service was pretty great and in perfect condition.

    This review is from Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Green

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    This is the best phone ever,love it

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

    This is the best phone ever,everything so good.I highly recommended

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

    Galaxy s23 ultra

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

    I love this phone. The battery life is great and the phone itself is fast

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

    Awesome Phone

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

    Great phone and awesome camera. The interface is smooth with no glitches this is must have.

    This review is from Samsung - Galaxy S23 Ultra 256GB (Unlocked) - Green

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Nice Celphone

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

    Very Good for all features in day. fast, smart nad beautifull

    I would recommend this to a friend
Page 85, Showing 1,681-1,700 of 2,642 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. © 2026 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.