Samsung Galaxy S21 Ultra 5G, US Version, 256GB, Phantom Black - Unlocked (Renewed)
Condition: Refurbished - Excellent
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90-day refund / replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 2 left in stock, order soon!
Arrives
Tuesday, Mar 10
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Features
- The Galaxy S21 Ultra features a massive 6.8-inch Dynamic AMOLED 2X display with Quad HD+ resolution, HDR10+ support, and an adaptive 120Hz refresh rate that scales dynamically to deliver ultra-smooth visuals while conserving battery life.
- Its rear camera system is a powerhouse, combining a 108MP wide sensor, 12MP ultra-wide lens, and two telephoto lenses (10MP each) with 3x and 10x optical zoom. With up to 100x Space Zoom, advanced AI scene optimization, and laser autofocus, the S21 Ultra captures extraordinary detail, whether shooting landscapes, zoomed-in subjects, or 8K video content.
- The phone is powered by Snapdragon 888 (U.S.) or Exynos 2100 (global) paired with up to 16GB of RAM, making it exceptionally fast for gaming, multitasking, and demanding productivity apps. Coupled with Samsung DeX support, the Ultra can be used like a full desktop workstation for editing, presentations, and professional workflows.
- The Galaxy S21 Ultra offers a 5,000 mAh intelligent adaptive battery with fast wired charging, fast wireless charging, and reverse wireless charging. Its AI-driven battery management optimizes power use based on your habits, allowing longer usage without frequent rechargingeven with heavy multitasking or 5G connectivity.
- Security and connectivity are top-tier, featuring Samsung Knox Vault for advanced protection of sensitive data, ultrasonic in-display fingerprint scanning, facial recognition, and ultra-fast 5G and Wi-Fi 6E support. Enhanced stereo speakers with Dolby Atmos create immersive audio, making the device ideal for gaming, streaming, and professional multimedia experiences.
Description
With Samsung Galaxy S21 Series, you have the ability to record in 8K. Which means your videos are double the resolution of 4K video. Or use the 64MP camera for still shots that come out clear whether it’s day or night. Single Take AI transcends the usual restrictions of photo and video editing to capture life’s greatest moments in one single take. Samsung Galaxy S21 Series, made for the epic in every day.
Brand: Samsung
Operating System: Android 11.0
Ram Memory Installed Size: 12 GB
CPU Model: Snapdragon
CPU Speed: 2.84 GHz
Memory Storage Capacity: 256 GB
Screen Size: 6.8 Inches
Resolution: 1440 x 3200
Refresh Rate: 120
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)
Is Discontinued By Manufacturer: No
Date First Available: June 7, 2021
Manufacturer: Samsung
Memory Storage Capacity: 256 GB
Standing screen display size: 6.8 Inches
Ram Memory Installed Size: 12 GB
Battery Capacity: 5000 Milliamp Hours
Item Weight: 0.48 Pounds
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Mar 10
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
I got it for my wife well she paid me LOL but she had a Samsung A15 so this is definitely leaps and bounds above that device. Great phone, I used to have the same one but I switched to Apple a few years ago and I haven't looked back.
Reviewed in the United States on March 1, 2026 by Aaron Peterman
I received my phone on time in perfect condition. No dents, scratches - nothing. Looked brand spanking new! Popped my SIM card in and everything works like a charm. Camera is AMAZING. I am a jewelry artist and taking photos of my opals has always been nearly impossible - even with my Canon. Not anymore. You can see all the colors & flash of them just like in real life. Oh! And the upload speeds to social media - I couldn't believe how quickly my videos upload now. I'm super impressed. I was looking at buying this from Samsung directly but it would've been almost twice the price and only 128 GB. I can't believe I got a perfect phone with 2x the storage space for wayyyy less in price. If you are thinking about it but nervous about getting off of Amazon, don't be. Delivery went smoothly - they alerted me when it was out for delivery and that gave me time to be ready to answer the door. Phone is excellent and I saved so much money. Also the only negative reviews I saw said that the phone wasn't unlocked and only worked for Verizon. I have AT&T and had no problems. I didn't have to contact them or anything. Worked right away! So I'm guessing that issue has been fixed. Lastly, the battery life is amazing. I use my phone a lot during the day - I haven't charged the phone now in about 48 hours and it's at 42%! Incredible! All in all, SOOOO happy with my purchase and highly recommend this phone!!
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Reviewed in the United States on July 19, 2022 by theXXXfiles
I'd like to start by saying i'm a Hurricane Helene survivor. I ordered this phone RIGHT before she hit here in northwest NC (Asheville), and wiped everything out including my job. After the disaster, wifi was a rare resource for a while, so I merely assumed that my phone's troubling inability to connect to service was temporary. When wifi returned, most cell towers were still knocked out and power was being restored all over the region, so it was no surprise that my phone was still unable to find a steady service connection. Slowly but surely as power was returned, other people were finding regular service. Not me! Oh no, I got to enjoy a frustrating rollercoaster of service disconnects, not receiving calls from my employer, missing important texts from people trying to check up on me and my father...these I only got to see when I restarted the phone after reconnecting to wifi. A trip to Charlotte was the teller when my phone never found service except for a few minutes after I rebooted it. Eventually, I could just manually reboot the sim card from settings and get the same 3mins of service experience before it would inevitably lose it. Well, silly little me just dismissed this cute little VOID sticker slapped at the bottom of the phone near the scuffed up charge port and sim card port -- ignore the shattered edges, this little treat happened the ONE time I dropped it in a BRAND NEW phone case. TBH the thing is so dang heavy I'm not surprised an Otterbox couldn't even save it from itself. But this sticker, man. I remember thinking "maybe it's voiding it as damage?" What a silly thought. They couldn't possibly sell me a broken phone! Pffffffffffffffff. Now I'm stuck with this ugly, broken brick, unable to afford a replacement because I'm on disaster financial aid and can't afford another meesely $350 device, and ATT absolutely REFUSES to let me buy a new sim card to test a desperate theory. I've been a long time customer of Samsung and you will not see me buying another; I'd rather be openly scammed by Apple, at least I know what to expect. Unfortunately, you can find articles dating back a couple years to this and the S22's release, discussing this exact issue with other providers. And can I just add that autocorrect is an embarrassing joke, like is it learning from 2yr olds, or just uneducated internet trolls because none of these words and capitalizations make any dang sense. TLDR; They might sell you a broken phone, and honestly it's kinda junk anyway.
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Reviewed in the United States on January 16, 2025 by Tiphani Soda Stano Tiphani Soda Stano
This Samsung Galaxy S21 Ultra has exceeded my expectations so far. It checks most, if not all of the boxes for what I want/need from a phone. Great quality, great cameras, marathon runner of a battery (I can go over 2 full days on a single charge with moderate use), ample storage (I got the 256gb version), speakers sound great, calls and texts work flawlessly, it's quick and responsive, feels good in the hand and has really nice haptic feedback. The fingerprint reader works great. I'm coming over from a OnePlus device (6t), so I'm still getting used to Samsung's operating system, but I'm liking it more and more as I get accustomed to it. The device came with Android 12 installed, and with Samsung's software/security update schedule, I'm hoping to get several years out of this S21 Ultra. I have purchased renewed/refurbished devices before, and love the option to get a solid, quality phone at a fraction of the cost of new. I ended up purchasing for the seller Re-Cell because they had great reviews and one of the best prices. The device shipped quicker than expected and was in almost like new condition. The only signs that it wasn't a brand new device were a couple small (a few mm in length) micro-scratches on the screen that were barely visible when the light caught them just right. That said, once I put a screen protector on, I can't see them at all. Overall, I definitely recommend the Samsung Galaxy S21 Ultra.
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Reviewed in the United States on May 28, 2022 by Kindle Customer Kindle Customer
Works as should. Rate as excellent but there were scuffs on the top edge. Doesn't affect use. Rest of phone is great!
Reviewed in the United States on February 6, 2026 by Johnny Labatte