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Samsung Galaxy S21 | Factory Unlocked Android Cell Phone | US Version 5G SmartphoneAmazon Product Imaging

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Samsung Electronics Galaxy S21 5G | Factory Unlocked Android Cell Phone | US Version Smartphone | Pro-Grade Camera, 8K Video, 64MP High Res | 128GB, Phantom Gray (SM-G991UZAAXAA)

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Color: Phantom Gray

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Purchase options and add-ons

Brand	SAMSUNG
Model Name	O1
Wireless Carrier	Unlocked
Operating System	Android
Cellular Technology	5G
Memory Storage Capacity	128 GB
Connectivity Technology	Wi-Fi Connectivity 802.11 a/b/g/n/ac/ax 2.4G+5GHz, HE80, MIMO, 1024-QAM USB USB 3.2 Gen 1 Bluetooth Bluetooth v5.0 Location Technology GPS,Glonass,Galileo Earjack USB Type-C Wi-Fi Direct Yes NFC Yes PC Sync. Smart Switch (PC version) USB Interface USB Type-C OS OS Android See more
Color	Phantom Gray
Screen Size	6.2 Inches
Wireless network technology	GSM, CDMA

About this item

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.Form_factor : Smartphone.Display resolution maximum:3200 x 1440 pixels
Sharp 8K Video: Capture Your Life’S 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

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SAMSUNG Galaxy S22 Cell Phone, Factory Unlocked Android Smartphone, 128GB, 8K Camera & Video, Night Mode, Brightest Display Screen, 50MP Photo Resolution, Long Battery Life, US Version, Phantom Black
$811.99
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WARNING:

CHOKING HAZARD -- Small parts. Not for children under 3 yrs.

Important information

Visible screen diagonal

7" / 16 cm

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	This Item Samsung Electronics Galaxy S21 5G \| Factory Unlocked Android Cell Phone \| US Version Smartphone \| Pro-Grade Camera, 8K Video, 64MP High Res \| 128GB, Phantom Gray (SM-G991UZAAXAA)	Recommendations Samsung Galaxy S21 5G \| Factory Unlocked Android Cell Phone \| US Version 5G Smartphone \| Pro-Grade Camera, 8K Video, 64MP High Res \| 128GB, Phantom White (SM-G991UZWAXAA)	dummy SAMSUNG Galaxy S21+ Plus 5G Factory Unlocked Android Cell Phone 256GB US Version Smartphone Pro-Grade Camera 8K Video 64MP High Res, Phantom Black	dummy SAMSUNG Galaxy S21+ Plus 5G Factory Unlocked Android Cell Phone 128GB US Version Smartphone Pro-Grade Camera 8K Video 12MP High Res, Phantom Silver	dummy Samsung Galaxy S21+ Plus 5G, US Version, 128GB, Phantom Silver - Unlocked (Renewed)	dummy Samsung Galaxy S21+ 5G, US Version, 128GB, Phantom Violet - Unlocked (Renewed)
	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart
Price	-28% $574.98 List: $799.99	-25% $599.97 List: $799.99	$899.97	-8% $549.99 Typical: $599.00	-56% $239.99 New Price: $549.99	-11% $239.00 List Price: $268.00
Delivery	Get it as soon as Friday, Apr 26	—	—	Get it as soon as Thursday, May 2	Get it as soon as Wednesday, May 1	Get it as soon as Wednesday, May 1
Customer Ratings	4.51,177	4.5658	4.62,577	4.62,577	4.0493	4.2900
Face recognition	4.2	3.9	4.2	4.2	3.9	4.2
Value for money	4.2	3.6	4.1	4.1	3.7	4.3
Fingerprint reader	4.1	4.2	4.0	4.0	4.3	4.1
Battery life	4.0	3.8	4.2	4.2	4.0	4.1
Sold By	All-Out Mobile	Reliant Cellular	Reliant Cellular	SBG Prime	EVOLVETECH	EVOLVETECH
display size	6.2 inches	6.2 inches	6.7 inches	6.7 inches	6.7 inches	6.7 inches
memory capacity	128 GB	128 GB	256 GB	128 GB	128 GB	128 GB
model name	O1	O1	T2	T2	Galaxy S21	Galaxy S21 Plus
operating system	Android	Android	Android	Android	Android	Android
connectivity tech	Wi-Fi Connectivity 802.11 a/b/g/n/ac/ax 2.4G+5GHz, HE80, MIMO, 1024-QAM USB USB 3.2 Gen 1 Bluetooth Bluetooth v5.0 Location Technology GPS,Glonass,Galileo Earjack USB Type-C Wi-Fi Direct Yes NFC Yes PC Sync. Smart Switch (PC version) USB Interface USB Type-C OS OS Android	Bluetooth, Wireless	Bluetooth, Wireless	Bluetooth, Wireless	Bluetooth, Wireless	Bluetooth, Wireless
display type	AMOLED	AMOLED	AMOLED	AMOLED	AMOLED	AMOLED
input interface	touch screen	touch screen	touch screen	touch screen	touch screen	touch screen

From the manufacturer

1 Space Zoom 2 All-day Battery 3 Dynamic AMOLED 2X 4 Storage

What's in the box

Handset, Travel Adapter, Data Cable, Ejection Pin, USB Connector

Looking for specific info?

Product information

Product Dimensions

0.3 x 2.8 x 5.9 inches

Item Weight

6 ounces

ASIN

B08N2FRMPN

Item model number

SM-G991UZAAXAA

Batteries

1 Lithium Ion batteries required. (included)

Customer Reviews

4.5 1,177 ratings

4.5 out of 5 stars

Date First Available

January 14, 2021

Manufacturer

Samsung

Memory Storage Capacity

128 GB

Standing screen display size

6.2 Inches

Ram Memory Installed Size

4 GB

Battery Capacity

4000 Milliamp Hours

Item Weight

171 Grams

Charging Time

12 Hours

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Product guides and documents

User Guide (PDF)

Product 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.

Customer reviews

4.5 out of 5

1,177 global ratings

How customer reviews and ratings work

Customers say

Customers like the speed, picture quality, and ease of use of the cellular phone. They mention that it's fast, the CPU is amazing, and the photos taken come out so clear. They also appreciate the battery life. That said, opinions are mixed on performance, and fit.

AI-generated from the text of customer reviews

51 customers mention45 positive6 negative

Customers like the quality of the cellular phone. They say it's a high quality phone, with a great camera and screen. Some customers also mention that the phone is in a pretty good condition with barely any defects. Overall, most are satisfied with the quality and performance of the product.

"...We were able to use it anywhere in the world. Very nice." Read more

"...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...." Read more

"I got it pre-owned and it was in a pretty good condition with barely any defects or scratches...." Read more

"...This S21 does that instantly. It is a high quality phone." Read more

29 customers mention22 positive7 negative

Customers like the battery life of the cellular phone. They mention that it has a great battery, and can go all day without recharging. Some say that the battery seems to adapt and improve the more it's used.

"...It is still going strong, and no malfunction to it. The battery life is still good, even after many years, and it is compatible with our phone..." Read more

"...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...." Read more

"...The battery lasts 2 full days , the last pixels I bought got about 6 hours. No comparison." Read more

"...Great pictures, battery life is OK, sometimes doesn't last a full day...." Read more

19 customers mention17 positive2 negative

Customers like the ease of use of the cellular phone. They say it's easy to operate, find, and set up. They also say it makes using the phone easier and faster. Customers also mention that the UI and Android OS are easy to use.

"...Since the last Samsung phone I had (S7), the software experience has gotten much better...." Read more

"...The performance is fantastic and it's very snappy with no lagging whatsoever...." Read more

"...It made using the phone easier and faster...." Read more

"Very beautiful and easy UI and The android OS very easy to use.The battery is good , not something special...." Read more

16 customers mention13 positive3 negative

Customers like the picture quality of the cellular phone. They say the camera takes amazing pictures, the photo quality is excellent, and the selfie shots are just amazing. They also love the size, the display is amazing, and that the camera is perfect.

"...The cameras are also fantastic...." Read more

"...The camera is top top, selfie shots are just amazing and rear shots are no different!Only thing I wasn't impressed with is the battery...." Read more

"...I love the size, the display is amazing, it's a beautiful phone and the quality is over the top...." Read more

"Similar to my other Samsung Galaxy phone I have owned. Great pictures, battery life is OK, sometimes doesn't last a full day...." Read more

13 customers mention13 positive0 negative

Customers are satisfied with the speed of the cellular phone. They mention that it has an amazing CPU, no lags, and 5G is lightning fast. They also appreciate the rapid charging and easy data transfer.

"...The performance is fantastic and it's very snappy with no lagging whatsoever...." Read more

"...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...." Read more

"...The camera is great and takes beautiful pictures. The rapid charging is awesome, charges up in no time." Read more

"...I'm already a Samsung user [s8], so this is an update. The fast processor and increase in RAM make for quick retrieval of material...." Read more

25 customers mention14 positive11 negative

Customers are mixed about the performance of the cellular phone. Some mention that it works good, has excellent battery life, and is easy to handle. However, others say that it doesn't work with US Cellular, the fingerprint reader rarely works, and has obvious bugs in basic functionality.

"...It is still going strong, and no malfunction to it...." Read more

"...It does NOT* work well, if it all, *with* weird off-brand screen protectors. It works about 30% of the time with the one I have on...." Read more

"...The performance is fantastic and it's very snappy with no lagging whatsoever...." Read more

"Fingerprint reader rarely works, the screen glitches, when the phone is powered off it's hard to get it turn back on, the screen flickers when..." Read more

11 customers mention6 positive5 negative

Customers are mixed about the fit of the cellular phone. Some mention that they love the size, the display is amazing, and it's a beautiful phone. However, others say that it'll be too small if the both ends are the same size.

"...The thickness is honeselt not, it's slim, even while packing a 4,000mah battery." Read more

"...The thing feels like my kids toy! The screen size feels like half inch smaller (I know it isn't but that's how it feels) and I'm having issues with..." Read more

"...I love the size, the display is amazing, it's a beautiful phone and the quality is over the top...." Read more

"...but the charger that's comes with the phone is no good the both ends is the same size and it's not working l expect better of that and there is no..." Read more

12 customers mention0 positive12 negative

Customers are dissatisfied with the cord of the cellular phone. They mention that it didn't come with the charger or earbuds. Some customers also say that the phone didn''t have a plug to charge.

"...The downside, has no charger has to be bought separately which sucks a phone that expensive should definitely come with accessories!!!!..." Read more

"...to Note20, besides it came with1sim card, without SD card slot, no charger and arriverd with a poked box from one side as if somebody has tried to..." Read more

"Just doesn't come with wall adapter" Read more

"...Main issue is the usb-c port. There was no cable in the package. So I had to order the cable to make the first charge...." Read more

Reviews with images

See all photos

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Top reviews from the United States

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Still going strong

Reviewed in the United States on February 3, 2024

Color: Phantom GraySize: 128GBStyle: S21Verified Purchase

Son had this as his birthday present, he loves using it and has been using this for over 3 years now. It is still going strong, and no malfunction to it. The battery life is still good, even after many years, and it is compatible with our phone carrier, even when we brought it overseas. We were able to use it anywhere in the world. Very nice.

One person found this helpful

Helpful

Brian DiGiorgio

High quality phone with a great user experience, middling battery

Reviewed in the United States on October 1, 2021

Color: Phantom GraySize: 128GBStyle: S21Verified Purchase

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.

3 people found this helpful

Helpful

John

Works just fine

Reviewed in the United States on October 28, 2021

Color: Phantom GraySize: 128GBStyle: S21Verified Purchase

I got it pre-owned and it was in a pretty good condition with barely any defects or scratches. The performance is fantastic and it's very snappy with no lagging whatsoever. The camera is top top, selfie shots are just amazing and rear shots are no different!

Only thing I wasn't impressed with is the battery. I don't know if it's because of the usage patterns of the previous owner. It's manageable for me though because I always have access to power and I don't mind plugging in every now and then.

Overall I'm enjoying it and I think I got a bang for my buck!

Helpful

Stephen M

Good bang for the buck, Fast, and lasts a good long time.

Reviewed in the United States on April 15, 2021

Color: Phantom GraySize: 128GBStyle: S21Verified Purchase

I bought this phone after having the s9 for a few years. I really did not want to upgrade, but I was having issues with it draining super fast, even in Safe mode. My over all impression with this is phone is amazing. After having it for a month. The only thing I dislike is the under screen fingerprint reader. It does NOT* work well, if it all, *with* weird off-brand screen protectors. It works about 30% of the time with the one I have on. It's worth getting good quality screen protectors from otterbox or another company that is really reputable. Now with that being said the face recognition is fast, you'll want a light color background for when it's dark where your using it. The thickness is honeselt not, it's slim, even while packing a 4,000mah battery.

3 people found this helpful

Helpful

Noni

The phone

Reviewed in the United States on March 12, 2024

Color: Phantom GraySize: 128GBStyle: S21Verified Purchase

Love my Samsung galaxy so happy with my purchase.

Helpful

BeavRocks

S21

Reviewed in the United States on September 13, 2021

Color: Phantom GraySize: 128GBStyle: S21Verified Purchase

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.

2 people found this helpful

Helpful

John Bebout

Samsung Galaxy S 21 , smartphone perfection.

Reviewed in the United States on June 5, 2021

Color: Phantom GraySize: 128GBStyle: S21Verified Purchase

I love all Samsung products, I've owned many and have been pleased with every purchase. My latest purchase the Galaxy S21, the screen, the operating system, the hardware is sweet perfection. I love the size, the display is amazing, it's a beautiful phone and the quality is over the top. I'm very pleased, as I've been with every Samsung product I've ever bought. I'll never buy any other phone than a Samsung Galaxy. Buttery smooth and rock solid. I've had many Android phones, including pixels, Samsung Galaxy's are far superior. The battery lasts 2 full days , the last pixels I bought got about 6 hours. No comparison.

2 people found this helpful

Helpful

DWB

Nice phone

Reviewed in the United States on August 21, 2021

Color: Phantom GraySize: 128GBStyle: S21Verified Purchase

Similar to my other Samsung Galaxy phone I have owned. Great pictures, battery life is OK, sometimes doesn't last a full day. I have a screen protector on it since I received it and also had it in a case with a built in cover to double protect it. Trouble using the finger ID with the double screens. You must also press pretty hard for it to recognize your fingerprint. I really like the phone buy for battery use I wish I would have stuck with my Nord N10 5G.

2 people found this helpful

Helpful

Top reviews from other countries

Translate all reviews to English

Luis Daniel

Muy buen celular

Reviewed in Mexico on March 28, 2021

Color: Phantom GraySize: 128GBStyle: S21Verified Purchase

Gran celular, muy rápido práctico en tamaño y muy eficiente, con un precio genial, funciona al 100% con las telefonicas mexicanas, las cámaras de lo mejor lo recomiendo mucho

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Jafet Vazquez

Excelente S21

Reviewed in Mexico on February 25, 2021

Color: Phantom GraySize: 128GBStyle: S21Verified Purchase

Excelente precio, la entrega fue antes del tiempo estimado, es mi primer compra de un articulo de importación tenia mis dudas al respecto y más por el valor, y la verdad me dejo una excelente experiencia y el teléfono cumplió con todas mis expectativa funciona perfecto con telcel

2 people found this helpful

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Jose Luis Zenil

Excelente Amazon. Y excelente precio..

Reviewed in Mexico on February 18, 2021

Color: Phantom GraySize: 128GBStyle: S21Verified Purchase

Me encantó el teléfono apenas lo estoy configurando pero está de lujo... Y además a un super precio!!! Vengo de una mala experiencia con la tienda chafa de de ML y estaba dudoso pero gracias a sus errores pude aprovechar esta super oferta. Lo retuvieron en la aduana 4 días pero Amazon cumplió con la fecha de entrega cabalmente. Y el mismo día que salió de aduana me llegó
Fue una maravilla encontrarlo en ese precio ahora ya subió je je je

11 people found this helpful

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Ismael T.

Todo bien hasta el momento, aunque la información no es precisa

Reviewed in Mexico on February 19, 2021

Color: Phantom GraySize: 128GBStyle: S21Verified Purchase

Es un dispositivo muy bueno en cuanto a rendimiento y estéticamente es muy bonito. Hasta ahora todo funciona a la perfección, solo que los datos de la descripción son incorrectos: el chip es el Snapdragon y no el Exynos (aunque dicen que el Snapdragon es mejor), y son 8 GB de RAM, no 12 como dice el título. Igualmente hay que tener en consideración que hay que comprar un adaptador de corriente por aparte, pues no lo trae incluido. El paquete llegó en perfectas condiciones, aunque con un día de retraso.

7 people found this helpful

Translate review to English

Israel Elí Mata Villanueva

Excelente Celular

Reviewed in Mexico on April 12, 2021

Color: Phantom GraySize: 128GBStyle: S21Verified Purchase

Actualice mi samsung s8 por este modelo y la diferencia es masiva, seria el celular perfecto si todavia tuviera expansion con micro sd y jack de auriculares, pero al menos la menoria de 128gb es suficiente y los audifonos bluetooth han mejorado mucho, por lo que no extranio tanto estos faltantes.

La version que tengo cuenta con el Snapdragon 888 que es un gran plus ya que la version Exynos es inferior.

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Samsung Electronics Galaxy S21 5G | Factory Unlocked Android Cell Phone | US Version Smartphone | Pro-Grade Camera, 8K Video, 64MP High Res | 128GB, Phantom Gray (SM-G991UZAAXAA)

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