AT&T Samsung Galaxy S23 Ultra 5G - 512GB - Black - SM-S918UZKFATT

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AT&T Samsung Galaxy S23 Ultra 5G - 512GB - Black - SM-S918UZKFATT

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12 Month Warranty

on every device

30-Day Money Back Guarantee

on every device

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most orders ship same day


Unleash the ultimate mobile experience with the Samsung Galaxy S23 Ultra 5G. This powerhouse device in elegant Black is packed with advanced features and massive storage, making it the perfect choice for tech enthusiasts and professionals alike.

Key Features

  • 5G Connectivity: Enjoy blazing-fast speeds with AT&T's robust 5G network.
  • 512GB Storage: Store all your photos, videos, apps, and files with ease.
  • Dynamic AMOLED 2X Display: The expansive 6.8-inch screen offers stunning visuals with vibrant colors and deep contrasts.
  • Quad Camera System: Capture incredible photos and videos with the 200MP main camera, 12MP ultra-wide lens, 10MP periscope telephoto, and 10MP telephoto lens.
  • S Pen Integration: Enhance your productivity with the built-in S Pen for precise control and creativity.
  • Long-lasting Battery: The 5000mAh battery keeps you powered throughout the day.
  • Fast Charging: Get back to full power quickly with 45W Super Fast Charging.
  • Snapdragon 8 Gen 2 Processor: Experience top-tier performance and smooth multitasking.
  • Water and Dust Resistant: With an IP68 rating, the Galaxy S23 Ultra is built to withstand the elements.

What's in the Box

  • AT&T Samsung Galaxy S23 Ultra 5G - Black
  • S Pen
  • Charging cable
  • Power Adapter
  • SIM Removal Tool


  • Carrier: AT&T
  • Display: 6.8 inches, Dynamic AMOLED 2X, 1440 x 3088 pixels
  • Processor: Snapdragon 8 Gen 2
  • RAM: 12GB
  • Storage: 512GB
  • Camera: 200MP (wide), 12MP (ultra-wide), 10MP (periscope telephoto), 10MP (telephoto)
  • Front Camera: 12MP
  • Battery: 5000mAh, 45W fast charging
  • Operating System: Android 13
  • Dimensions: 163.4 x 78.1 x 8.9 mm
  • Weight: 234g
See Specifications
Brand R3NEW
Title AT&T Samsung Galaxy S23 Ultra 5G - 512GB - Black - SM-S918UZKFATT


What kind of warranty/guarantee do you offer?

At R3NEW, all purchses come with a 30 day money back guarantee and 12 month warranty. Our 12 month warranty covers any technical defects and malfunctions. Our warranty aims to provide peace of mind, ensuring that you can trust in the reliability and longevity of your purchase.

What's the difference between the conditions? (Excellent, Good, EcoSave)

Great question! Let us break down the difference.

Excellent: Our Excellent condition devices offer a pristine user experience that rivals new units, boasting a flawless appearance with no visible scratches on the display or body. Each device undergoes rigorous testing to ensure it operates like new, giving you peace of mind with a full year of warranty coverage. It’s an ideal choice for those seeking near-new quality without the brand-new price tag

Good: Devices in Good condition are a great compromise between cost and quality. You might find a few minor scratches or slight nicks on the body or display, but these are purely cosmetic and don’t affect the device’s operation. We suggest using a case to bring its external appearance closer to 'like new.' Rest assured, every device meets our strict functional standards and comes with a one-year warranty for functionality

EcoSave: Opt for our EcoSave condition if you want to maximize value while minimizing environmental impact. These devices show visible signs of use, such as scratches or dents, which are purely cosmetic and can often be concealed with a case. Each device has passed our comprehensive functional tests and is backed by a one-year warranty, ensuring it works perfectly for you while also being kind to the planet.

Can I trust R3NEW?

We've sold electronics for over 15 years and are one of top trusted sources of certified refurbished electronics. Plus, with a 30-day guarantee and 12 month warranty, you can shop with peace of mind. If you have any issues at all, just email our support team and we'll help you out.