More sustainable than new

Galaxy S23 Ultra 512GB - Red - Unlocked

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Galaxy S23 Ultra - Unlocked's customer reviews


132 verified reviews in the last 6 months.

  • K

    Keah P.

    Purchased on February 29, 2024


    This is the third item I have purchased from back market. I truly don't foresee ever buying electronics brand new again. The phone came in record time, in stellar condition. You would truly never know it was refurbished. It works great, I have had zero problems with anything I've purchased from back market and the Galaxy s23 Ultra was no different.

    Reviewed in the United States on March 28, 2024

    Galaxy S23 Ultra 512GB - Red - Unlocked
  • S

    Shawna S.

    Purchased on April 5, 2024


    I was hesitant to ordering such an expensive refurbished phone but I have been pleasantly surprised with my purchase thus far. My phone came in better than Good condition. My only "issue" was that when I started the phone it didn't go through the initial start setup. I ended up factory resetting the phone. After setup I had to go through the settings to unlock the network, which is not a big deal but it is something that not many people would know or consider. Aside from that, it has been a fantastic phone that has worked with my Mint plan.

    Reviewed in the United States on April 21, 2024

    Galaxy S23 Ultra 512GB - Red - Unlocked
  • A

    Andre S.

    Purchased on June 11, 2024


    This is my first order and trade-in and I'm very happy with everything I will be making recommendations to all my friends and family I purchased a Galaxy S23 Ultra it's flawless I purchased it Excellent grade and it was like it was brand new. I'm very happy

    Reviewed in the United States on June 13, 2024

    Galaxy S23 Ultra 512GB - Red - Unlocked
  • M

    Miguel R.

    Purchased on May 24, 2024


    My latest purchase was for my oldest daughter. who didn't want to get bound to a lengthy payment contract with the cellular carrier. She specifically asked for the Samsung Galaxy S23 Ultra. 512 GB. We got a really competitive price and a great product presentation. She had no issues once she started using it. We continue our tradition with Backmarket. Being our cellphone provider.

    Reviewed in the United States on June 9, 2024

    Galaxy S23 Ultra 512GB - Red - Unlocked
  • A

    April F.

    Purchased on January 5, 2024


    I was skeptical buying a refurbished phone. I chose Back Market because they have a great warranty. I bought a S23 Ultra and it is in perfect condition. It came with a charger. I am happy with my choice.

    Reviewed in the United States on January 21, 2024

    Galaxy S23 Ultra 512GB - Red - Unlocked
  • A

    American P.

    Purchased on December 9, 2023


    A fair deal on a S23 Ultra that looks and seem new if I didn't know better.. upgraded because I had to S20 (also a great phone) broke when I dropped it. I had never heard of this place and was a little skeptical, but I finally read enough to put me at ease. Glad I did. Great Phone, Great Price, Get Company and Refurbisher.

    Reviewed in the United States on December 24, 2023

    Galaxy S23 Ultra 512GB - Red - Unlocked
  • C

    Charles C.

    Purchased on December 28, 2023


    Fabulous! Ordered Samsung S23 Ultra from Back Market and couldn't be more pleased. Phone arrived promptly and existing number and data including my dozens of apps transferred without any problems as well as all data. Did not include a charger but did include a charging cable. This was described in the advertisement. Phone appears new and works absolutely perfectly. Highly recommend Back Market!

    Reviewed in the United States on February 1, 2024

    Galaxy S23 Ultra 512GB - Red - Unlocked
See all 132 reviews

Reborn vs. brand new

Here’s what you help prevent on average by choosing a reborn smartphone over a brand new one.

171.1 lbs of CO2e

That's like driving an SUV from NYC to Chicago.

6.3 oz of e-waste

That’s around the weight of a baseball.

537.1 lbs of raw materials

That's like 20 dogs digging in your yard for a week.

20,341.2 gallons of water

That's like running a faucet for 3 days

Everything you ever wanted to know about the Galaxy S23 Ultra - Unlocked

  • Description
    S Series has a legacy of pushing the boundaries of what a smartphone can do. And with Galaxy S23 Ultra, we’re raising that bar again. Galaxy S23 Ultra is more than the next big step in mobile tech. With the crystal-clear camera resolution on a phone and stunning Night Mode powered by Nightography, you can share those big moments no matter the lighting. Plus, with the fastest Snapdragon processor yet, juggle high-intensity games, multiple apps or video calls with ease. Write, sketch, edit, create and share from anywhere with a built-in S Pen. And do all of the above on an incredibly large display built for gaming, streaming, creating and doing. Enhance your day-to-day with a device that’s anything but ordinary, and share the epic with Galaxy S23 Ultra.
    • Capture the night, even in low light

      Ready to own the night? Whether you’re headed to a concert or romantic night out, there’s no such thing as bad lighting with Night Mode. Galaxy S23 Ultra lets you capture epic content in any setting with stunning Nightography.

    • Capture scenes in stunning detail

      Create crystal-clear content worth sharing with Galaxy S23 Ultra 200MP camera. Whether you’re posting or printing, Galaxy S23 Ultra always does the moment justice.

    • Steady video. Incredibly easy.

      Capture incredibly smooth video during life’s most exciting moments. With Video Stabilization, you can easily record daytime outdoor adventures or those spur-of-the-moment dance parties at night.

    • Upgrade your Note pad

      Capture scribbles, strokes of genius and everything in between with the built-in S Pen. Writing your next short story or sketching on the go has never felt this easy.

    • Take out the S Pen. Take a pic.

      Capture epic selfies and beautiful photos with the click of your S Pen. Simply open up the camera app and click the button on the S Pen instead of the screen. Getting that great shot just got easier.

    • Our fastest mobile processor available

      Whether you’re working hard, playing hard or doing both at the same time, smoothly switch between apps with our fastest processor ever.

    • The power to stay on top of your game

      Power through a packed day or a long night of gaming without worrying about your phone dying. The robust 5,000mAh battery has been fine-tuned with a smarter processor that helps manage energy usage without slowing you down.¹

    • More storage. More memories.

      You’re good on storage space. With an impressive amount of storage, starting at 256GB, you can enjoy being behind the camera without the stress that comes with getting close to filling up your phone.

    • Watch anything in any light

      Watch your content comfortably as Adaptive Vision Booster helps your screen adapt to your environment. Whether out in direct sunlight or in bed with the lights off, the contrast on Galaxy S23 Ultra expansive screen still looks amazing.

    • Convenient collaboration

      Easily answer video calls and collaborate with the team while remote with Galaxy S23 Ultra and Google Meet.²

    • Love it? Share it.

      Send even your large files —whether it’s cute puppy videos or work documents —between your Galaxy S23 Ultra and any iOS or Android device. Quick Share helps minimize frustration when sharing the epic.³

    • Snap once. Capture a ton.

      Get the group together for one shot and capture a variety of candid moments. Simply tap, record and choose from multiple stills and videos.⁴

    • Capture memories in stunning 8K Video

      Capture memories in stunning detail with 8K Video recording. No matter the moment, Galaxy S23 Ultra lets you shoot ultra-bright, crystal-clear scenes —day or night.

    • Get back to on the go

      Life’s best moments could happen at any second. With a battery that supports up to 45W Super-Fast Charging, it’s easy to stay ready. Power up your Galaxy S23 Ultra quickly and get back to making more memories.⁵

    • Tough when it matters most

      Take on the day confidently with a tough yet stylish phone —one built to resist spills and scratches.

    • Your phone. Your look. Your style.

      Design your own Galaxy experience with Galaxy S23 Ultra. With our versatile One UI, you can personalize a lock screen that reflects your lifestyle.

    • Designed with our planet in mind

      Feel good knowing your new phone supports what you support. Galaxy S23 Ultra was designed to help you live in a more sustainable world, while enjoying everything that makes that life amazing.

    • Smart Switch into the Galaxy

      Diving right into your new Galaxy S23 Ultra is easy. Simply transfer your favorite content —photos, calendar dates, alarms and even call history —from your previous phone with Smart Switch.

    • ¹Based on average battery life under typical usage conditions. Average expected performance based on typical use. Actual battery life depends on factors such as network, features selected, frequency of calls, and voice, data, and other application usage patterns. Results may vary.

    • ²Requires devices to have One UI 2.5 or later. Must be logged into the same Google account and Google Meet app must be activated on each device.

    • ³For Galaxy-to-Galaxy or any other devices: Quick Share to Galaxy smartphones and tablets smartphones and tablets with Android OS version 10.0 (Q) and One UI 2.1 or above requires Wi-Fi and Bluetooth connection.

    • ³Quick Share to iOS and Android devices available by sending shared link: individual files shared cannot exceed 3GB (for a total of 5GB per day) and link will expire after two days; requires a Samsung account and Internet connection.

    • ³For Galaxy-to-Galaxy device: Quick Share between Galaxy smartphones and tablets with Android OS version 10.0 (Q) and One UI 2.1 or above requires Wi-Fi and Bluetooth connection.

    • ⁴Single Take captures images and video for up to 15 seconds.

    • ⁵Wall charger sold separately; use only Samsung-approved chargers and cables. To avoid injury or damage to your device, do not use incompatible, worn or damaged batteries, chargers or cables. Supports up to 45W charging.

Galaxy S23 Ultra 512GB - Red - Unlocked

  • Manufacturing part numbers (MPN) : SM-S918UZGFXAA
  • Color : Red
  • Screen size (inches) : 6.8
  • Model : Galaxy S23 Ultra
  • OS : Android
  • Resolution : 1440x3088
  • Carrier compatibility : Unlocked
  • Storage : 512 GB
  • Memory : 12 GB
  • Screen type : AMOLED
  • Network : 5G
  • Double SIM : No
  • Manufacturer Ref. : SM-S918U
  • Memory Card Slot : No
  • Verizon compatible : Yes
  • AT&T compatible : Yes
  • T-Mobile compatible : Yes
  • Release Year : 2023
  • Foldable : No
  • SAR head : 1.12
  • SAR body : 0.92
  • Series : Samsung Galaxy S
  • SIM card : Single-SIM + eSIM
  • Color (official name) : Red
  • Product type : Refurbished
  • Brand : Samsung
  • Weight : 8 oz
  • Height : 6.4 in
  • Width : 3.1 in
  • Depth : 0.4 in

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