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Samsung

Samsung Galaxy S23 Ultra 5G, US Version, 512GB, Green - Unlocked (Renewed)

  • Based on 3,336 reviews
Condition: Refurbished - Excellent
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Availability: In Stock.
Fulfilled by Ecobuyphone
Arrives Sunday, Aug 2
Order within 15 hours and 35 minutes
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Service provider: Unlocked


Color: Green


Size: 512GB


Features

  • 6.8" Dynamic AMOLED 2X Infinity-O QHD+, Edge Screen, 120Hz Refresh Rate, 500ppi, 1750nit (Outdoor Peak), 1440 x 3088 pixels, 5000mAh Battery
  • 512GB, 12GB RAM, No SD Card Slot, Qualcomm SM8550-AC Snapdragon 8 Gen 2 (4nm), Octa-Core, Adreno 740
  • Rear Camera: 200MP, f/1.7 + 10MP, f/4.9 + 10MP, f/2.4 + 12MP, f/2.2, Front Camera: 12MP, f/2.2, Android 13, One UI 5.1
  • 2G: GSM /1900, CDMA 800/1900, 3G: HSDPA (AWS)/1900/2100, CDMA2000 1xEV-DO, 4G LTE: 1/2/3/4/5/7/8/12/13/14/18/19/20/25/26/28/29/30/38/39/40/41/46/48/66/71, 5G: 1/7/28/41/66/71/78/258/260/261 SA/NSA/Sub6/mmWave - Single SIM
  • No Warranty. Compatible with Most GSM and CDMA Carriers like T-Mobile, AT&T, MetroPCS, etc. Will Also work with CDMA Carriers Such as Verizon, Sprint.

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.

Brand: Samsung


Operating System: Android


Ram Memory Installed Size: 12 GB


CPU Model: Snapdragon


CPU Speed: 2.8 GHz


Memory Storage Capacity: 512 GB


Screen Size: 6.8 inches


Resolution: 1440x3088


Refresh Rate: 120


Model Name: Galaxy S23 Ultra


Operating System: Android


RAM Memory Installed: 12 GB


Processor Series: Snapdragon


Processor Speed: 2.8 GHz


Memory Storage Capacity: 512 GB


Color: Green


SIM Card Slot Count: Single SIM


Connector Type: USB Type C


Form Factor: Bar


Biometric Security Feature: Face Recognition


Human-Interface Input: Keyboard


Sim Card Size: Nano


Water Resistance Level: Water Resistant


Headphones Jack: 3.5 mm


Flash Memory Supported Size Maximum: 512 GB


Front Photo Sensor Resolution: 12 mp


Rear Facing Camera Photo Sensor Resolution: 200 mp


Camera Description: Rear


Shooting Modes: Night Mode


Number of Rear Facing Cameras: 4


Number of Front Cameras: 1


Battery Capacity: 5000 milliamp_hours


Battery Description: Lithium-Ion


Battery Power: 5000 milliamp_hours


Battery Average Life: 18 hours


Phone Talk Time: 22 hours


GPS Geotagging Functionality: True


Screen Size: 6.8 inches


Resolution: 1440x3088


Refresh Rate: 120


Display Type: AMOLED


Display Resolution Maximum: 1440x3088


Display Pixel Density: 500 pixels_per_inch


Wireless Provider: Unlocked for All Carriers


Cellular Technology: 5G


Connectivity Technology: Bluetooth


Wireless Network Technology: Wi-Fi


Brand: Samsung


Model Year: 2023


Built-In Media: Charging Cable


Warranty Description: 90 days limited warranty


Manufacturer: Samsung


Specific Uses For Product: Photography, Videography


UPC: 657768425745


Item Weight: 8.32 ounces


Item Dimensions: 6 x 4 x 2 inches


Video Capture Resolution: 1440p


Frame Rate: 120 fps


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Aug 2

Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Similar Products

Top Amazon Reviews

    • Phone is awesome, but mine was network locked to AT&T. Read review in full!
Service provider: Unlocked Color: Green Size: 512GB
It is almost identical to my last phone, the S22. I dropped the s22 and went ahead and bought this S23 Ultra. They replaced the screen on the S22 in 4 hours and it is excellent renewed. Instead of returning this s23 ultra I decided to keep it. This S23 Galaxy ultra should last many years. One issue I encountered was that the phone was locked to AT&T unlike what was advertised. I chose to use Unlockme mobile to unlock. Not recommended. It took 5 days and instead of charging me the initial 24 dollars that I paid at the beginning, at the very end they charged me $96.00 for the unlock code. A big scam. I found out that in my call to AT&T that they no longer give unlock codes and recommend to me to use Unlockme. I should have just returned the phone to Amazon. I didn't because I am confined to a nursing home and could not drop phone off at an Amazon drop off location. If phone is locked save $120 and just return it. ... show more
Reviewed in the United States on July 2, 2026 by Douglas H Cart
    • Excellent s
Service provider: Unlocked Color: Lime Size: 1TB
I got this phone specifically for the 1tb memory and how much extra I have to keep on my phone for work. I don't like having to carry 2 phones for work. It has all my work apps and personal and I still have tons of space. It doesn't have any drag or delays and operates fast. The other thing about this phone and i use often is the translation functions it has, super helpful for me at work. The only drawback I have found is listening to music without headphones, built in speaker isn't as good, but its not often im listening to music without headphones so doesn't bother me to much at all. ... show more
Reviewed in the United States on July 6, 2026 by alicia
    • The Biggest Waste of Money I've ever had the Displeasure of Owning
Service provider: AT&T Color: Phantom Black Size: 256GB
I want to be clear about something before I get into the details: I am not a difficult customer. I do not leave reviews like this lightly. But what I received from this seller was not a refurbished phone, that implies the phone actually works. From the moment I attempted to set this phone up, it was restarting. During initial configuration. During data transfer. During update attempts. Every single time I tried to install an available update the phone threw the same useless error message at me and gave up. A device that cannot update itself out of the box is not a functioning device. What I eventually discovered was that this phone shipped with firmware from September 2025, five updates behind current at the time of purchase. Five. It's likely someone wiped and put it back in a box. In order to get this device to a functional state I was forced to manually flash the firmware myself using Samsung Smart Switch on my PC. This took multiple attempts over several hours. One failed flash left the phone stuck on a cyan error screen. I had to force restart it into recovery mode just to get the home screen back. I did all of this just to reach the baseline a refurbished phone should have shipped at. After weeks of normal use following all of that, the phone is still randomly restarting. Sometimes once a day, sometimes every twenty seconds. Apps open and immediately crash. The behavior is inconsistent and unpredictable. I have been a Samsung user for years. I have never had a device that required this level of intervention just to function, let alone one that still failed after all of it. Save your money. Save your time. Save yourself the particular misery of spending an afternoon in recovery mode on a phone you bought two days ago. ... show more
Reviewed in the United States on April 13, 2026 by Brandon Katavich
    • Solid great phone so far...
Service provider: Unlocked Color: Phantom Black Size: 256GB
Phone showed up in great condition with only a couple scuffs on the frame that are barely noticeable. Battery life seems solid so far have an app testing it but hasn't cycled enough to tell me what percentage it's at. Screen is in great shape no scratches and seems gem or decent quality replacement anyway. It is a Canadian model but as far as I can tell that has no effect on anything. Took many hours of updating os then the security updates from 2023 til now that was tedious waitng for one at a time to download and install. Will update if anything changes. ... show more
Reviewed in the United States on July 7, 2026 by Jose
    • This can't be refurbished⭐⭐⭐⭐⭐
Service provider: Unlocked Color: Phantom Black Size: 256GB
Wow, I'm seriously impressed with how perfect the quality of this refurbished phone is. It's pristine, not a scratch anywhere! If you're hesitant about buying refurbished phones, don't be. I've bought several, and they've always been in great condition. And on the rare occasion they're not, you can always send them back, guaranteed through Amazon. So yeah, I couldn't be happier with my purchase! ... show more
Reviewed in the United States on July 7, 2026 by Kevin Silver
    • Worth every penny --But please read to avoid any issues
Service provider: Unlocked Color: Green Size: 512GB
Review Image by Rose Peterson Problem Solver!
Review Image by Rose Peterson Problem Solver!
Review Image by Rose Peterson Problem Solver!
I waited about a week before posting to get a feel for the device and ensure everything works well. Before the full review I want to note that I posted an unboxing video. The phone arrived in bubble wrap with a generic 10 watt charger included. Do not use that charger — plan to purchase a minimum 45 watt charger and a high quality cord. Using the included charger may cause battery overheating, slow charging, and long term battery damage. Another concern was that when I plugged the phone in for its initial full charge, I received a water detection warning. I tested three of my S22 Ultra cables that have never had issues and got the same warning each time. I used a small cool fan briefly, stood the phone upright. Just be cautious and double check your charging port before use. The water detection warning has not returned once since that first day — the fix worked completely. The phone also did not come with a SIM card removal tool. If you don't have one, the back of an earring works surprisingly well as a backup — that's always been my go-to. Luckily I had my own tool for the SIM swap. (These are the reasons I couldn't give 5 stars. Had I not caught these issues — especially the charger — I would likely have been frustrated enough for 1 or 2 stars.) That said, this phone is amazing. I'm coming from the S22 Ultra so the UI was immediately familiar, with many similar features and an easy transition. The biggest improvement is the processor — App installation, gaming without lag, browsing, music from the internal speakers, all noticeably better across the board. Most notably for my usual activities, game downloads that took 2+ minutes on my S22 Ultra now complete in approximately 10 seconds on the S23 Ultra. The difference is genuinely dramatic. I transferred approximately 128GB of apps and data wirelessly from my S22 Ultra in about 40 minutes. A USB-C to C cable would have been faster, but after the water detection warning I didn't want to use a cord for that step. The 40 minutes was likely influenced by the transfer speed of the older S22 Ultra as the source device. After the transfer, everything was loaded exactly as it was on my previous phone — it connected to my WiFi without entering a password, and my Samsung biometrics remembered passwords for each app, making it seamless to use immediately. The battery does not overheat the way the S22 Ultra is well known to do, which was a major concern of mine going in. The condition was as described. There were two very small micro cracks near the edge, but after applying a screen protector they are completely invisible. If they ever become visible I'll simply use a liquid glass repair solution. After extensive research I'm not concerned about the screen integrity. The camera is phenomenal. I was always impressed with the S22 Ultra camera, but the increased resolution makes every shot noticeably more vivid. Photos look almost better than real life, with no extra steps needed — just point and shoot. The 512GB storage is more than I'll likely ever need, even with a heavy volume of photos, videos and apps. I don't see myself coming close to capacity. I spent considerable time deciding between the S23 and S24 Ultra. After thorough research the benefits of paying several hundred dollars more for a marginally better camera and minor improvements weren't justified. This phone represents an incredible upgrade at a very reasonable price. Edit: After using for about a month i wanted to note that the battery lasts for an extreme long time, the photos are absolutely incredible, the processing speed... is unmatched, I used to lag, or have apps crash, now everything is seemeless. This is just an amazing phone! ... show more
Reviewed in the United States on May 13, 2026 by Rose Peterson Problem Solver!
    • It is an awesome phone
Service provider: Unlocked Color: Graphite Size: 512GB
This phone was exactly as described and works perfectly. I'm so happy with it.
Reviewed in the United States on July 21, 2026 by Didi H
    • Love the ultra line
Service provider: Unlocked Color: Phantom Black Size: 256GB
I bought this as a gift for my boyfriend, but I previously owned the Galaxy S23 Ultra and now use the S25 Ultra. After using both, I honestly don't notice a huge difference in day-to-day performance. Both phones are exceptionally fast, take outstanding photos, have gorgeous displays, and handle multitasking with ease. What really stands out is the value. The S23 Ultra can often be found for about half the price of the S25 Ultra, making it an incredible bargain. Unless you absolutely need the newest features, the S23 Ultra still delivers a true flagship experience and is a smart way to save money without sacrificing performance. ... show more
Reviewed in the United States on July 2, 2026 by Brandon Guilbeau

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