Samsung Galaxy S21 Ultra 5G, US Version, 128GB, Phantom Black - Unlocked (Renewed)
Condition: Refurbished - Excellent
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Availability:
Only 2 left in stock, order soon!
Arrives
Saturday, Aug 29
Recently Viewed
Service provider: Unlocked
Color: Phantom Black
Size: 128GB
Features
- The Samsung Galaxy S21 Ultra (Renewed) is a premium smartphone with a 6.8-inch AMOLED display, 120Hz refresh rate, and powerful camera system featuring a 108MP main lens and up to 100x zoom. It supports the S Pen, offers strong performance with 5G connectivity, and is ideal for users seeking flagship features at a better value.
Description
Samsung Galaxy S21 Ultra (Renewed)
Brand: Samsung
Operating System: Android 11.0
Ram Memory Installed Size: 12 GB
CPU Model: Core i5
CPU Speed: 2.84 GHz
Memory Storage Capacity: 128 GB
Screen Size: 6.8 inches
Resolution: 1440 x 3200
Refresh Rate: 120
Model Name: Galaxy S21 Ultra 5G
Operating System: Android 11.0
RAM Memory Installed: 12 GB
Processor Series: Core i5
Processor Speed: 2.84 GHz
Memory Storage Capacity: 128 GB
Color: Phantom Black
SIM Card Slot Count: Single SIM
Connector Type: USB Type C
Form Factor: Bar
Biometric Security Feature: Face Recognition
Human-Interface Input: Touchscreen
Sim Card Size: Nano
Water Resistance Level: Water Resistant
Headphones Jack: No headphone jack
Additional Features: Fast Charging Support
Flash Memory Supported Size Maximum: 128 GB
Front Photo Sensor Resolution: 40 mp
Rear Facing Camera Photo Sensor Resolution: 108 mp
Camera Description: Front
Shooting Modes: High Dynamic Range
Number of Rear Facing Cameras: 4
Number of Front Cameras: 1
Battery Capacity: 5000
Battery Description: Lithium-Ion
Battery Power: 5000
Battery Average Life: 10 hours
Phone Talk Time: 37 hours
GPS Geotagging Functionality: True
Supported Satellite Navigation System: GPS
Screen Size: 6.8 inches
Resolution: 1440 x 3200
Refresh Rate: 120
Display Type: OLED
Aspect Ratio: 1.341
Display Resolution Maximum: 3200 x 1440
Display Pixel Density: 515 pixels_per_inch
Wireless Provider: Unlocked for All Carriers
Cellular Technology: 5G
Connectivity Technology: Bluetooth, NFC, USB, Wi-Fi
Wireless Network Technology: GSM
Brand: Samsung
Model Year: 2021
Built-In Media: Adapter, USB Cable
Warranty Description: 90 DAY LIMITED
Manufacturer: Samsung
Model Series: S21
Specific Uses For Product: Entertainment
UPC: 686457991643 796575251793 601557986368
Unit Count: 1 Count
Item Weight: 5.96 ounces
Item Dimensions: 6.7 x 3.4 x 2.44 inches
Effective Video Resolution: 1080 pixels
Video Capture Resolution: 8k
Frame Rate: [Adjustable]
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Aug 29
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
This product only surprised me because im pessimistic by default. It arrived in pristine, unblemished, completely perfect condition. I couldn't believe it. I was like its gotta be the battery then. so ive tested it out for a week at work using it for work as a driver, and it performs very similarly in terms of battery life to my previous phone which was brand new before i busted the screen on it and had to get this one. For some context, I've never paid 1000 bucks for a flagship phone. This was the first time i got a chance to see what owning a flagship top of the line phone is like. And im gonna be real honest about the fact that it is effing awesome on every level. Top of the line everything all included on my phone that i take everywhere. It's like a gamer's quality-of-life update that improves your actual life. If the sun is out hard this damn screen is so bright it makes no difference, i can still see everything at full brightness unlike my previous samsung A53 which did the job but the brightness was hot garbage. The camera is so good i dont even know where to begin. All i can say is even though i might never pay full price for a flagship phone, owning one is sooooooooo nice. even this old thing that looks brand spanking new and works like new too. I couldn't be happier about this purchase. Your phone stays with you everywhere you go, and you can have a crappy phone or one like this, or even the newest model of it too. Im probably never going to settle for less than this quality from now on since a phone is such an everyday necessity and since it improves the quality of your life this much. I love it. Really glad i pulled trigger on this one - even though you gotta hedge your expectations when looking at a refurbished product, but i trust Amazon's assessment that it is excellent quality, and i dont regret trusting them for it. Feels like a 1000 dollar phone for $270
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Reviewed in the United States on June 30, 2026 by Mike S.
I’m very happy with this phone. It arrived in great condition, was easy to set up, and everything works smoothly. The screen is bright, the camera takes amazing photos, and the battery lasts all day. It feels fast and reliable, and I would definitely recommend it to anyone looking for a great smartphone.
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Reviewed in the United States on July 13, 2026 by Arlenis Lopez Cortina
Nothing but problems from the beginning. I do a lot of phone repairs so I figured even if there are issues with it being "renewed", I can fix them myself. I was very wrong. Out of the box, the screen wouldn't work correctly while charging. It would randomly touch or swipe until you unplug it. I opened it up and replaced the charging port hoping that would fix it but no. While it was open, I saw that over half the screws inside were missing or in the wrong place. But the most concerning part: one screw had come loose and was pushing against the battery! It was already inflating so I replaced the battery right then and there. Another issue: the screen would occasionally become covered in static for a few frames during use. Due to this issue and the charging issue, I though maybe a replacement screen would fix both. It did not, and that turned out to be yet another waste of money into this endless pit of a device. Every single part in the phone is terrible. The aftermarket cameras are worthless, the motherboard is horribly glitchy and slow, the speakers sound awful, the original screen was terrible, and the antennae are constantly losing connection (eventually I was no longer able to receive calls at all!). Less than a year into ownership this phone is going into the garbage. I should've gotten a new A-series phone instead of this.
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Reviewed in the United States on February 4, 2026 by Elizabeth Rosebrough
This phone still feels like a top-tier flagship even years later. The display is gorgeous, performance is fast, and the camera system is still one of the best in its class. Battery life holds up well, and getting this level of hardware at a renewed price makes it an incredible deal. The Phantom Black finish also looks clean and premium. For $250, it’s honestly hard to beat. Feels like you’re getting way more than you paid for.
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Reviewed in the United States on April 6, 2026 by Seth
The Samsung S21 Ultra has exceeded my expectations in almost every aspect. From its stunning display to its powerhouse performance, this flagship smartphone truly stands out in the crowded market. Let me delve into the details of what makes this device a must-have, while also shedding light on an area that could use some improvement. First and foremost, let's talk about the display. The S21 Ultra boasts a breathtaking Dynamic AMOLED 2X screen with a 120Hz refresh rate, delivering unparalleled clarity and vibrancy. Whether I'm streaming my favorite movies or gaming with friends, every visual detail pops with stunning realism. It's like having a cinema in the palm of my hand. Performance-wise, the S21 Ultra is an absolute beast. Powered by the latest Snapdragon processor (or Exynos depending on the region), coupled with generous RAM, this smartphone effortlessly handles multitasking, gaming, and productivity tasks with lightning-fast speed. Apps launch instantly, and I can seamlessly switch between tasks without any lag or stutter. One of the standout features of the S21 Ultra is its camera system. With a quad-camera setup including a 108MP main sensor, 10x optical zoom, and 100x Space Zoom, this phone lets me capture moments with astonishing clarity and detail. Whether it's a scenic landscape or a close-up shot, the photos turn out sharp and vibrant, even in low light conditions. The sleek design of the S21 Ultra is another aspect that I absolutely adore. From its premium build quality to its ergonomic feel in hand, Samsung has nailed the aesthetics of this device. It's a perfect blend of style and functionality, making it a pleasure to use and show off. However, no device is without its flaws, and in the case of the S21 Ultra, it's the included charger. While the smartphone itself supports fast charging up to 25W, the included 2.1A 10W ONLY charger feels somewhat underwhelming. In today's fast-paced world, where every minute counts, having a more powerful charger would significantly enhance the user experience, allowing for quicker top-ups on the go.
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Reviewed in the United States on May 8, 2024 by Vinicius R da Silva
Horrible. Freezes way to often.2nd one ordered,first one sent back with same problem.very unsatisfied.
Reviewed in the United States on July 13, 2026 by Ger-ma
El Samsung S21 Ultra es un excelente smartphone. La pantalla tiene una calidad impresionante, con colores vivos y una gran fluidez. La cámara toma fotos y videos espectaculares, incluso de noche, y el zoom es de los mejores que he probado. El rendimiento es rápido y permite ejecutar varias aplicaciones sin problemas. Además, la batería ofrece una buena duración para todo el día con un uso normal. Aunque ya tiene algunos años en el mercado, sigue siendo una compra muy recomendable por su calidad, potencia y excelente relación entre precio y prestaciones
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Reviewed in the United States on July 28, 2026 by Jorge Martinez Trujillo
Finally pulled the trigger on getting a new phone. I used to use a Galaxy S8 (what I used to take the pictures) and it held together for a good 5 years. However time and wear had taken it's toll. Battery lasting 8-10 hours with light use, a few cracks to the screen, you get the idea. I decided to keep with Samsung as I rarely is ever have issues with them. I had an LG Stylo for less than a week before I went with the S8 after my S6. Found this deal. Advertised as 'Renewed - Excellent', and I knew what quality that would be as that's what my S8 was when I picked it up. So I went a little over budget to pay that premium. It wasn't quite worth it. Pros : Battery seems to be great, lasts about as long as the first ads for the S21 Ultra when it first dropped. It's now day 4 since I decided to test the battery and keep it off the charger. With light use, I'm still at 39%. The fingerprint scanner hasn't given me an issue yet, Audio quality on calls and playing music is better than I was expecting to be honest. The 5G is a lot better than the 4G I was at with my previous phone. The camera is working pretty well, though the 100x is a bit too blurry, but at 50x, for example, it's definitely usable. Screen quality still lives up to the hype, though I still need to tinker with the phone settings as the color seems a bit oversaturated. And, for a user of Boost Mobile, this has been the fastest switchover from phone to phone I've ever had. No calling in, no visiting a physical store, not even punching some numbers into an internet portal, just literally took the SIM from my S8, slid it into the new phone, and in seconds I was active. Even the Boost Mobile site had the updated phone information already registered. Cons: Here's where my praise kind of ends. As I said, it's not in Excellent condition. There are two noticeable scratches on the screen. On mid way up the phone from left to center that I can see at arm's length, and one in the lower right quadrant that I can see when the light hits it just right. At lest you can't see them with the screen on. Man, those two hard to get clear images of. I might not have noticed them if I didn't remove the ill-fitting screen protector with plans to replace it. There's some deformation in the bottom right corner as if that's where they used a metal tool to pry up the old screen. It's not sharp, but you definitely notice if you run your finger over it. The charge port is deformed as well. Slight bend on the rear side towards the front. Not enough to interfere with plugging it in, but it's there. And speaking of ill-fitting protections, the camera were covered with a piece of tape. Even after I removed it, it took more than a little work to clean off the adhesive that was left behind. They seller was 'nice' enough to include a cable and charger. The cable is a sub-standard 4 wire USB-A to USB-C. At least the data lines were connected so I could get SOME use out of it, but no chance of any change plugging it into a USB 3.0 port, as opposed to USB 2.0. The charger itself was a basic 5 volt 2.1 amp mini brick. I'm glad I already had the proper charger and cable so I could get the proper charging speed. So understand that you might not get what's advertised. According to Amazon's own policies, this should have been 'Renewed - Acceptable' at best. That $40 difference, from sellers providing the same, I could have put toward a case, proper screen protector, and maybe even a charge/cable bundle. Definitely not worth the full price I paid.
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Reviewed in the United States on May 30, 2025 by Amazon Customer