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Samsung

Samsung Galaxy S21 Ultra 5G, US Version, 128GB, Phantom Black - for AT&T (Renewed)

    • Based on 15,136 reviews
Condition: Refurbished - Excellent
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$249.00 Why this price?
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Availability: Only 8 left in stock, order soon!
Fulfilled by MCEsales
Arrives May 10 – May 12
Order within 7 hours and 45 minutes
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Service Provider: AT&T


Color: Phantom Black


Size: 128GB


Features

  • 6.8", 1440 x 3200 pixels, Dynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak), 5000mAh Battery
  • 128GB ROM, 12GB RAM, No SD Card Slot, Qualcomm SM8350 Snapdragon 888 5G (5 nm), Octa-Core, Adreno 660
  • Rear Camera:108MP, f/1.8 + 10MP, f/4.9 + 10MP, f/2.4 + 12MP, f/2.2, Front Camera: 40MP, f/2.2, Android 11, upgradable to Android 12, One UI 4.1
  • CDMA 800/1900, 3G: HSDPA (AWS)/1900/2100, CDMA2000 1xEV-DO, 4G LTE: 1/2/3/4/5/7/8/12/13/14/18/19/20/25/26/28/30/38/39/40/41/46/48/66/71, 5G: 2/5/25/41/66/71/260/261 SA/NSA/Sub6/mmWave - Single SIM
  • AT&T Locked cellphones are not compatible with other GSM carriers or CDMA carriers such as T-Mobile, Verizon and Sprint.

Description

Unleash a new era of mobile supremacy with the Samsung Galaxy S21 Ultra 5G SM-G998U, where innovation meets unmatched excellence. Dive into an immersive visual extravaganza on its expansive display, captivating your senses with vibrant details and stunning colors. Elevate your photography game with an advanced camera system that turns every moment into a visual masterpiece with extraordinary precision. Powered by a formidable processor, this device ensures a seamless and responsive performance, effortlessly adapting to your dynamic lifestyle. The Galaxy S21 Ultra 5G keeps you powered throughout your day, while intuitive features enhance your daily tasks. Immerse yourself in the Samsung ecosystem, offering a seamless interface and unlocking a plethora of functionalities. This sleek and resilient companion goes beyond being a mere phone; it's a symbol of Samsung's commitment to delivering an unparalleled smartphone experience. Redefine your mobile journey and indulge in the extraordinary with the Samsung Galaxy S21 Ultra 5G SM-G998U — where cutting-edge innovation meets an unprecedented level of excellence. Our carefully inspected and tested Manufacturer refurbished products assure full functionality, having undergone a comprehensive examination. While they may exhibit signs of light to moderate usage, each unit is certified as functional by Phonecheck, an industry-certified, leading stringent quality control and diagnostics examination. Moreover, our commitment to quality extends to a thorough cleaning process. Please note that each shipment may arrive in a brown or white generic box, accompanied by relevant charging accessories (please be aware that headphones are not included), which may also be generic. Our top priority throughout this refurbishment process is your reliable performance and quality assurance..

Brand: Samsung


Operating System: Android


Ram Memory Installed Size: 128 GB


CPU Model: Core i7


CPU Speed: 2.84 GHz


Memory Storage Capacity: 128 GB


Screen Size: 6.8 Inches


Resolution: 1440 x 3200


Refresh Rate: 120 hertz


Model Name: Galaxy S21 Ultra 5G


Product Dimensions: 6.5 x 2.98 x 0.35 inches


Item Weight: 7.7 ounces


Item model number: Galaxy S21 Ultra 5G


Batteries: 1 Lithium Ion batteries required. (included)


OS: Android


Wireless communication technologies: Wi-Fi


Connectivity technologies: Wi-Fi


GPS: True


Other display features: Wireless


Human Interface Input: Touchscreen


Scanner Resolution: 1440 x 3200


Other camera features: Rear, Front


Audio Jack: 3.5 mm


Form Factor: Slate


Color: Phantom Black


Battery Power Rating: 5000 Milliamp Hours


Phone Talk Time: 10 Hours


Whats in the box: AKG Headset, Data, STD Battery


Manufacturer: Samsung


Date First Available: May 5, 2021


Memory Storage Capacity: 128 GB


Standing screen display size: 6.8 Inches


Ram Memory Installed Size: 128 GB


Battery Capacity: 5E+3 Milliamp Hours


Weight: 0.48 Pounds


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 10 – May 12

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.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Excellent so far
Service Provider: Unlocked Color: Phantom Gray Size: 128GB
I ordered it on Sept 20th at $339 plus shipping of ~$34 and Morocco VAT of ~$80, so totally I paid $449. Delivery was very good. I saw it was shipped on the 25th. On the 30th, I received an SMS from DHL saying they planned delivery on Oct. 3rd, but on the same day I got an email asking for copy of national ID and content description for clearing customs. I am not a Morocco residents nor citizen, so I sent my foreign passport instead. On the 3rd, Amazon tracking info said clearing custom was delayed as additional documents were needed. So I called DHL, and the rep said it would be delivered on the 4th instead. On the 4th, I saw a newly posted message about delay on Amazon tracking. I called DHL various times but couldn't get to anyone. I then sent an inquiry by email and get a response shortly saying it was being taking care of. Then late afternoon, I got the package. Upon arriving, the seal of the packing had an opening large enough to put in a hand but not for getting the phone out, so I didn't complain. Unpacked, the inner packing of the phone was in excellent condition, very much like the original packing but had no Samsung marking, rather, it had a marking of "amazonrenewed". There was a film covering the screen, like on a new phone. The phone appeared in excellent condition, only had a small scratch at the back when I looked in detail, and a hair of scratch on the screen that is only visible under bright light and in a particular angle. I tried but couldn't turn on the phone - there was no response. The box also included a USB-C cable and a cheap non-Samsung charger made in China. I used my own Samsung Charger to charge the phone. After plugged in, it showed the battery was at 0. So I let it charge to full. After started, it turned out fully unlocked. My Morocco sim card works with 4G. The phone's software looked already reset, but I reset it myself anyhow. Then updated to the latest system with Android 12, and loaded many apps I need. During about the first week, the battery appeared quite poor. With medium usage it lasted about a day. I tried all necessary settings to conserve battery, but it didn't seem to help much. These couple days, it becomes much better, lasting about 45 hours. I read it was likely due to some AI processes either from Android 12 or Samsung doing the learning work at first. But it's pretty bad the phone doesn't show any info. I would say I am very happy with the phone. And this is after having a terrible experience in the past with Samsung. The last Samsung phone I had was S7 Edge bought in Thailand (I am a traveler), new at a Samsung store for perhaps ~$800. I actually wanted the normal S7 (without the "edge"), but it was out of stock then. I never liked the "edge", it was a silly design in my mind. The phone worked well initially, but in the coming couple of years I had a terrible experience. About 5 months later when I was in Vietnam, the screen started to show shaded bands across. As I was wondering how or if I should return to Thailand to get the phone serviced, the bands disappeared after a month. Then about another 7 months later when I was in Azerbaijan, the phone couldn't start after I did a system update. So I couldn't use the phone for a couple weeks until I reached Tbilisi in Georgia when I had someone flashed it. About a year later, it died on me again when I was in Morocco. I had someone re-flashed it, but it was not successful. About 1 month later I reached the city of Fes where there is a Samsung service center. After checking, they said there was something wrong with the motherboard. Very shocking! I've never had such problem in my life with all the phones and computers, cheap or dear, and this was a flagship! So eventually, I sold it to a local repair shop for $200, for which they said they only needed the screen. That was end of 2017. So I never bought a Samsung again, and would definitely not buy one at the full price. I admit the S series is not worthless. At least, I like the camera. But I never had a chance to buy one at a largely reduced price (I won't buy from just any second-hand sellers). So now, the Amazon reviewed phone with some warranty got me interested. Yes, I have some risk, but to me with the past experience, the risk is not much higher than getting a new phone from Samsung, plus, I am putting in a much lower bet now. ... show more
Reviewed in the United States on October 13, 2022 by X Jia
    • Best phone 5 🌟 🌟 🌟 🌟 🌟
Service Provider: Unlocked Color: Phantom Pink Size: 128GB
5 stars. This is the best galaxy phone i ever had. And I been using galaxy phones for years. This phone has the best picture quality. And last so much. Im in love. And the pink is so cuteeee. I bought this phone for my 3 year old son and I ended up keeping it for myself and went ahead and purchased another one for him. Now I'm planning to order a third one for my boyfriend. I love it. If u want a phone that last and take good picture's . Order it. 🌟 🌟 🌟 🌟 🌟now i think i have so much regrets spending 1000 $ buying phone from tmobile when this one is so much cheaper and better quality. Thank you amazon. 💕 ... show more
Reviewed in the United States on March 24, 2025 by stephanie
    • First and LAST time i will ever buy a refurbished device
Service Provider: CDMA Carriers Color: Phantom Black Size: 128GB
I was very apprehensive about buying a refurbished phone but after reading so many 5 star reviews i pulled the trigger. The first one i got looked brand new cosmetically but any time i would go to charge it it said there was "Water in the charging port" and wouldn't let me charge the phone (there was no water anywhere near the phone, let alone in the charging port). That kept happening until i returned it for another one. This one (got it in March of 2023) looked great too cosmetically but functionality is the big issue. First it wouldn't give me any notifications of emails - I went through all the prompts and settings, changed everything I could...still no notifications of emails. The only time it will notify me is if I actually open up Gmail - then it will pop up saying you have x amount of unread messages but if I'm already opening the program it's completely useless! Then I started having people tell me "I was calling you but it went straight to voicemail" I thought it was odd but maybe it was service related. I went to my wireless provider and they said there is nothing wrong with the service it's probably the device. My wife has the same exact service with a different phone and has service throughout the house. Now not only can i not make or receive calls in my house I can't send text messages! The phone will say I have full service (5 bars) plus I'm connected to Wifi 6 with a 1 gig fiber connection. When I go to send a message it will just keep spinning and spinning until the message times out after a long time. The only way I've figured out how to trick the phone into sending messages is send the message, turn the phone on airplane mode and then switch airplane mode off again and the message will send. To add insult to injury last month I noticed a small artifact on the screen that does not go away. I've had this phone for less than a year and I have a permanent line on the screen that shows even when it's on the charging screen. I purchased this from the seller "TheGadgetDeals" because they had 100% positive reviews - not sure how that's possible if these are the kind of phones they are selling. So with no email notifications, no ability to make or receive calls or send text messages in my house (and a lot of times other places) I effectively have a $450 paper weight masquerading as a phone. If you're ok with spending nearly $500 on a phone that will be essentially unusable within 7 months of purchasing I say go for it, otherwise I'd look elsewhere! 1/10 WOULD NOT RECOMMEND PS. After owning the phone for a month or so i purchased another one for my wife (also from TheGadgetDeals) her phone came in excellent cosmetic condition but every time she would make or receive a call the person on the other end would hear an echo of everything they said so that phone had to returned ... show more
Reviewed in the United States on October 29, 2023 by Michael
    • Great Everything
Service Provider: AT&T Color: Phantom Black Size: 128GB
Great Phone, Great Price, Great Delivery Speed. I am sorry but I am just a little petty but the phone arrived not set to the factory setting, I once got a phone that was not set to the factory setting & had to throw it away due to the software was corrupted & wouldn't allow me to set the phone to the factory setting, the seller wouldn't let me return it because when I got to set it up on my network; I found I only had 10 days to try it & then decide to return it if I didn't want it & was unable to return it. But I was both thrilled & excited to find the phone was not corrupted or it wasn't defective, So A++ to the seller to sell a great phone & great everything about it ! I love this phone it is so awesome ! I took 1 star off due to that it took time out of my busy life to reset it to the factory setting !! ... show more
Reviewed in the United States on April 19, 2025 by SLittle

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