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Samsung

Samsung Galaxy S21 5G | Factory Unlocked Android Cell Phone | US Version 5G Smartphone | Pro-Grade Camera, 8K Video, 64MP High Res | 256GB, Phantom Gray (SM-G991UZAEXAA)

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Availability: Only 9 left in stock, order soon!
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Arrives Sunday, May 10
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Color: Phantom Gray


Size: 256GB


Style: S21


Features

  • Pro Grade Camera: Zoom In Close, Take Photos And Videos Like A Pro, And Capture Incredible Share-Ready Moments With Our Easy-To-Use, Multi-Lens Camera
  • Sharp 8K Video: Capture Your LifeS Best Moments In Head-Turning, Super-Smooth 8K Video That Gives Your Movies That Cinema-Style Quality
  • Multiple Ways To Record: Create Share-Ready Videos And Gifs On The Spot With Multi-Cam Recording And Automatic Professional-Style Effects
  • 30 Space Zoom: Get Amazing Power And Clarity, Zoom In From Afar Or Magnify Details Of Nearby Objects; Zoom Lock Keeps Focus And Stability

Description

Life Is A Series Of Moments. Why Not Make Them Beautiful? Take Your Photos And Videos To An Incredible New Level With Multiple, Cutting-Edge Ways To Capture Life Exactly As It Is, Or Turn It Into A Work Of Art. With A Sleek, New Design, Hyperfast Processing And A Battery That Won'T Give Out On You When You Need It Most, Samsung Galaxy S21 Smart Phone Lets You Get Creative, Stay Connected And Do It All Your Way. We Know Your Life Moves Fast, And There’S A Fine Line Between What Makes A Moment Ordinary And What Makes It Extraordinary. That’S Why We Created S21. With The Ability To Record In 8K, Your Videos Aren’T Just Cinema Quality, They’Re Double The Resolution Of 4K Video. Or Use The 64Mp Camera For Still Shots That Come Out Clear Whether It’S Day Or Night. Better Yet, Why Not Do Both? Single Take Ai Transcends The Usual Restrictions Of Photo And Video Editing To Capture Life’S Greatest Moments, Wherever They Happen, In One Single Take . Galaxy S21, Made For The Epic In Every Day. Single Take Ai Captures Images And Video Up To 15 Seconds.

Brand: Samsung


Operating System: Android


CPU Model: A-Series


Memory Storage Capacity: 256 GB


Screen Size: 6.2 Inches


Resolution: 3200 x 1440 pixels


Refresh Rate: 120 Hz


Model Name: O1


Wireless Carrier: Unlocked


Cellular Technology: 5G


Operating System: Android


Processor Series: A-Series


Memory Storage Capacity: 256 GB


Color: Phantom Gray


SIM Card Slot Count: Dual SIM


Connector Type: USB Type C


Form Factor: Smartphone


Biometric Security Feature: Face Recognition


Human-Interface Input: Touchscreen


Sim Card Size: Nano


Water Resistance Level: Waterproof


Headphones Jack: No headphone jack


Compatible Devices: 5G-enabled devices


Specific Absorption Rate: 1.6 Watts per Kilogram


Additional Features: Bluetooth Enabled, Expandable Memory, LTE, Water Resistant, Wireless Charging


Material Features: Dust and water resistant


Rear Facing Camera Photo Sensor Resolution: 64 MP


Camera Description: Front, Rear


Camera Flash: no flash


Shooting Modes: Automatic


Optical Sensor Resolution: 64 MP


Number of Front Cameras: 1


Battery Capacity: 4000 Milliamp Hours


Battery Description: Lithium-Ion


Battery Power: 4000


Phone Talk Time: 5 Hours


Effective Video Resolution: 8 Kilopixels


Video Capture Resolution: 8k


Frame Rate: 120


Screen Size: 6.2 Inches


Resolution: 3200 x 1440 pixels


Refresh Rate: 120 Hz


Display Type: AMOLED


Aspect Ratio: 1.771


Display Resolution Maximum: 3200 x 1440 Pixels


Wireless Provider: Unlocked


Cellular Technology: 5G


Connectivity Technology: Bluetooth, Wireless


Wireless Network Technology: Wi-Fi


Brand: Samsung


Model Year: 2021


Built-In Media: Handset, Travel Adapter, Data Cable, Ejection Pin, USB Connector


Warranty Description: 1 year manufacturer


Manufacturer: Samsung


Model Series: S21


Specific Uses For Product: [INFERRED] High-quality photography and videography, 5G network connectivity, use in various environments including wet or dusty conditions


UPC: 887276514758


Item Type Name: Smartphone


Unit Count: 1.0 Count


Item Weight: 0.4 Pounds


Item Dimensions: 6.7 x 3.4 x 2.44 inches


GPS Geotagging Functionality: True


Frequently asked questions

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

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Exceeds all Expectations
Color: Phantom Gray Size: 256GB Style: S21
Samsung hit the nail on the head with this one. This phone has everything I need and more. The camera is top notch. I find myself leaving my DSLR at home, unless for special occasions. The screen is super clear even in direct sunlight and collects very few fingerprints (its like sorcery). The screen refresh rate also lends itself well to make the phone feel snappy and smooth. It's honestly heaven in my hands. The fast charging is a must, but fast wireless charging is even better. In glass finger print sensor is fast and accurate, you just have to get used to where it is (way better than face ID. However, the battery life is a little short (for heavy loads), but fast charging more for makes up for it. I considered getting the Ultra, but this phone exceeded my expectations in every way. The law of diminishing returns plagues the Ultra waaay too much. Take it from a person who values fast, robust, and cutting-edge tech that the S21 5G will not leave you short handed at nearly half price. It's not the cheaper option, it's the smarter one. ... show more
Reviewed in the United States on May 23, 2021 by Matthew
    • High quality phone with a great user experience, middling battery
Color: Phantom Gray Size: 128GB Style: S21
I came to this phone from a OnePlus 6t after growing suspicious of OnePlus's company decisions/priorities and wanting a smaller phone, and I have been largely satisfied with it over the past 3 months. Since the last Samsung phone I had (S7), the software experience has gotten much better. GoodLock lets you customize basically everything OxygenOS did (taking away OnePlus's main argument nowadays). The speakers and vibration motor are much higher quality than I was used to, and the overall construction of the phone is very solid. I haven't had any durability issues with it in the past 3 months, and the phone still looks pristine even without a case. The cameras are also fantastic. I have been using my DSLR far less than I was before because of the wide range of capabilities the three different focal lengths have. I only wish the wide angle camera had a macro mode like some other phones do. My only worry with it has been battery life. The OnePlus 6t really spoiled me in this regard, getting 7-8 hours of screen on time even after 2.5 years of use, and initially this phone didn't live up to that. However, over time it has gotten better (as people said it would), and it's probably around that range now. Overall, I would definitely recommend this to anyone who is looking for a small phone with top end features. ... show more
Reviewed in the United States on October 1, 2021 by Brian DiGiorgio
    • A good gift phone for a relative.
I gave this phone to a relative and he told me what is going super well with this product despite being refurbished, it has a good battery 🔋 and takes good pictures, the truth is a good phone.
Reviewed in the United States on September 27, 2025 by Esta mica es una basura se hacen burbujas y no pega nada
    • Power Features
My device arrived in perfect new condition. Set up was easy, and I found getting everything organized natural. I decided to write a review to give some important things to know from the power users point of view. I have used the device for about 1 week now. First, some background. I work on consumer electronics professionally. This means I'm absolutely a power user. Other reviewers cover the basics better, so I'm going to focus on those details that power users would really want to know but have a hard time finding before buying. I'll start with the bad. Samsung completely dropped the ball on two important features: visual voicemail and RCS messaging. The former only works if you have a carrier app that supports it. The built-in dialer has no support for visual voicemail whatsoever, and if you install the Google dialer, Samsung's modifications prevent it from accessing visual voicemail services on my carrier. If you care about visual voicemail, and your carrier doesn't provide a carrier specific app, then you're out of luck. In my opinion, this is the biggest downside of the phone: Samsung software. If I knew that visual voicemail wasn't officially supported without a carrier application, I wouldn't have bought this phone. I'm on Mint Mobile where no carrier application is available, meaning I just don't have this feature on a premium flagship phone. That's a fail. I expect this feature standard in the premium segment. For RCS messaging, support in their SMS app is strangely absent for this latest model phone. Even if you install Google Messages and Carrier Services, it activates, but I was never able to successfully send an RCS message. As a power user, I like running the latest Android software. Samsung is getting better about this, but the updates will lag Pixel phones. Samsung is on the right track offering 3 years of software support followed by an additional fourth year of security updates. If you like Android tunables, this is the phone for you. You can control everything from high-speed battery charging levels vs cycle count to detailed power savings restrictions applied to each app. You can control the kind of network you connect to using what technology, and you can even view networks in your area from other carriers that aren't yours! I really like having this degree of control over the phone. It almost makes up for the lack of visual voicemail. Snapdragon 888 performance is the best at any price for Android. Although it doesn't challenge the king of mobile silicon performance, Apple, performance remains excellent with the new X1 prime core. This phone can play anything beautifully and will not leave you wanting more. Reverse wireless charging and the ability to output to a full size display over HDMI are as niche as they are wonderfully geeky. I love the idea that I could use this phone as my only computer. The indisplay fingerprint reader is fast and responsive. I have applied a glass display protector, and it still works if you recalibrate your fingerprints and increase display sensitivity. It's just not as responsive. I'm of the opinion that the back of the device is the best place to put a fingerprint reader or on the power button. With that said, the solution works. Battery life is genuinely all day. It's definitely not two day battery life, but I end the day using my phone actively for much of it with some power to spare. The battery size for this phone is just right. Camera is spectacular. It's better than my own eyes. I'll leave this one to the photographers. I love the AI powered scene recognition; it's helped me take some unbelievable shots. Overall: a premium device with strange omissions and cool niche features. I like the phone, but I question the manufacturer's priorities at times. You shouldn't have to compromise at this price. With that said, this is pretty cool phone that will please many users. ... show more
Reviewed in the United States on June 3, 2021 by Karen W
    • This phone is survival-rated
Color: Phantom Gray Size: 256GB Style: S21
Making a review 4 years after purchase. This phone has survived everything short of a nuclear explosion... Not one crack or dent. It's fallen from meters and has stayed intact. Water resistant to accidental dunks in the shower or pool settings. The service works amazing still. Best phone I've had since the S8. Battery life has degraded a bit (as with any phone over time) but not too menacingly. Colors on display are still vibrant. Would purchase again. ... show more
Reviewed in the United States on March 24, 2025 by Linda Colon
    • S21
Color: Phantom Gray Size: 128GB Style: S21
I upgraded from an S7 Edge to this S21. The phone size is exactly the same as my old S7. The battery life on this new phone is awesome. i can go all day without recharging. Like all phones, if you are using Maps, the charge time is reduced quite a bit as that app sucks a lot of juice. So far, after a month, I like this phone quite a bit. I bought it on Prime day and got a real good price. The normal retail price is otherwise a bit much for what it is. I am totally satisfied though as 5G is lightning fast. My old S7 took a lot of time to refresh simple things like the weather app. This S21 does that instantly. It is a high quality phone. ... show more
Reviewed in the United States on September 13, 2021 by BeavRocks

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