Samsung Galaxy S21 256GB 5G Smartphone (Unlocked, Phantom Gray)

BH #SAGAS21256G • MFR #SM-G991UZAEXAA
Samsung Galaxy S21 256GB 5G Smartphone (Unlocked, Phantom Gray)
Key Features
  • GSM + CDMA / 4G LTE + 5G Compatible
  • North American Variant
  • Triple Camera System (12MP, 12MP, 64MP)
  • Ultra-Wide, Wide & Telephoto Cameras
Never let a moment be missed with the Samsung Galaxy S21 256GB 5G Smartphone, which features a triple camera system and a host of pro-grade AI-supported technologies. The 12MP ultra-wide, 12MP wide, and 64MP telephoto lenses can capture a wide variety of still image types, while also allowing you to capture videos at up to 8K. With 8K video support, you can use the 8K Video Snap feature to pull out 33MP hi-res frames from within clips, so you can ensure that you never miss a chance of saving and sharing specific moments.
No Longer Available
This device is unlocked and should work fully with carriers listed below with green bars. Yellow bars denote partial network coverage. A SIM card and service plan must be purchased separately. Network compatibility listed here is for reference only and does not guarantee phone compatibility or activation on CDMA Carriers.

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Samsung S21 SM-G991U Overview

  • 1Description
  • 2GSM + CDMA / 4G LTE + 5G Wireless Connectivity
  • 3North American Variant / US Compatible 5G
  • 4Single Take
  • 5Director's View
  • 6Super Steady
  • 7Portrait Modes
  • 8Space Zoom
  • 9Eye Comfort Shield
  • 10Wireless Charging
  • 11Priority Mode
  • 12Knox Vault
  • 13One UI 3
  • 14Motion Mirror
  • 15Additional Features

Never let a moment be missed with the Samsung Galaxy S21 256GB 5G Smartphone, which features a triple camera system and a host of pro-grade AI-supported technologies. The 12MP ultra-wide, 12MP wide, and 64MP telephoto lenses can capture a wide variety of still image types, while also allowing you to capture videos at up to 8K. With 8K video support, you can use the 8K Video Snap feature to pull out 33MP hi-res frames from within clips, so you can ensure that you never miss a chance of saving and sharing specific moments.

What you see on the Samsung S21 is just as good as what you can record, with a stunning 6.2" Dynamic AMOLED 2x screen with an adaptive refresh rate of up to 120 Hz. AI detects the content you are viewing and alters the refresh rate automatically, between 48 to 120 Hz, giving you a smooth scrolling experience when you need it, and preserving battery life when you don't. Gorilla Glass Victus protects the display with extremely durable damage and scratch resistance. A tiny hole in the Infinity-O display accommodates a 10MP camera to handle your selfies.

The screen on the Samsung S21 is how we experience all of what a smartphone can offer us, and much of that content is streamed to us via the internet. From streaming movies and TV shows to online gaming. This is why Samsung equipped the S21 with 5G support in both Sub-6 and mmWave network frequencies, maximizing your ability to utilize the blazing fast speeds that 5G can offer. The phone also supports Wi-Fi 6E, which expands home and public network support into the latest 6 GHz spectrum for more stable connections and the fastest bandwidth possible.

GSM + CDMA / 4G LTE + 5G Wireless Connectivity

This phone is designed to work on select CDMA, GSM & 5G networks, including sub-6 and mmWave. 5G is a cellular network data protocol capable of extremely fast data speeds that rival, or surpass, that of wired broadband Internet providers. 5G speeds can vary considerably based on location, but on average, should have no problem streaming 4K video. As 5G upgrades over time, mobile AR and VR applications could become possible. The phone is backwards compatible with 4G LTE, 3G, and 2G data for locations that do not support 5G.

North American Variant / US Compatible 5G

The SM-G991 is a North American variant of the S21 5G. It may be used in other parts of the world; however, 5G access may be limited or unsupported, depending on the network. Please choose your country/carrier above to confirm the network compatibility of this phone.

Single Take

With Single Take, integrated AI snaps a variety of Instagram-ready photos and videos (up to 15 seconds) with a single tap, letting you pick the perfect shot or video to share.

Director's View

Like a director on a big Hollywood production, you too can film with multiple cameras at once. As you record, Director's View will show you thumbnails of what each camera can see, letting you switch between them on the fly, giving your resulting video a more professional look and save you some editing time later.

Super Steady

This feature works to remove the shakiness that comes when moving as you film, resulting in smooth videos akin to what you would get with an action cam.

Portrait Modes

The 10MP selfie camera does not just simply take your photo. It uses integrated AI to bring out your features, ensure true-to-life color, and provide fast autofocus. You also get multiple portrait modes to get creative with what you share online. Choose from your original AI-enhanced photo, Blur, Studio, High-Key Mono, Low-Key Mono, Backdrop, or Color Print.

Space Zoom

If you can't get to your subject, bring it to you with Space Zoom. A 30x digital zoom ability lets you focus on people and objects far in the distance, and with Zoom Lock, your subject will remain centered so you can more easily capture a photo or video.

Eye Comfort Shield

More and more, smartphones are becoming our window in which we view the world. With so much time spent staring at a digital screen, Samsung created Eye Comfort Shield. It's an AI-based technology that will automatically adjust the blue light emitted from your phone to help minimize eye strain.

Wireless Charging

With support for Fast Wireless Charging 2.0, you can recharge the S21 without the need of a cable. You can also use the S21 to charge other devices. With Wireless PowerShare support, you can place another compatible Galaxy smartphone or Galaxy Buds onto the S21 to give them a quick recharge.

Priority Mode

Whether you're going up against an AI or human opponent, victory requires focus. With Priority Mode engaged, calls are blocked as you play.

Knox Vault

Samsung provides a dedicated chip to help ensure that your data and personal information remain safe. It also encrypts your biometric data that you can use to more easily unlock your phone.

One UI 3

Enhancing the Android operating system is Samsung's One UI 3, which delivers a plethora of features to make using the S21 easier and more convenient. Some features include the ability to have multiple widgets on your lock screen, so you can see more info at-a-glance. You can also customize a widget's size and opacity. There's also an object eraser ability that lets you edit photos to remove unwanted people or objects with a few taps.

Motion Mirror

This feature lets you view yourself on your TV via the S21's camera as you work out, helping you better replicate exercises and forms being demonstrated by an instructor.

Additional Features

Smooth 60 fps video at 1080p
4000mAh battery for all-day power
Large ultrasonic fingerprint reader
IP68 water and dust resistance
Compatible with Google Duo
Support for Samsung Pay

Samsung S21 SM-G991U Specs

Performance
Operating SystemAndroid 11
Memory8 GB
ProcessorQualcomm Snapdragon888
CPU2.84 GHz Kryo 680 Single-Core
2.42 GHz Kryo 680 Triple-Core
1.8 GHz Kryo 680 Quad-Core
GPUAdreno 660
Storage256 GB
Display
Size6.2"
Native Resolution2400 x 1080
Refresh Rate120 Hz (at Max Brightness)
Aspect Ratio20:9
Pixel Density421 ppi
Panel TypeOLED
Screen CoatingGorilla Glass Victus
Input/Output Connectors
Ports1 x USB Type-C (USB 3.1 / USB 3.2 Gen 1)
Speaker2
Media/Memory Card SlotNone
SIM Card Slots1 x Nano SIM
Communications
CDMA 2GCDMA: 800, 1900 MHz
GSM 2GGSM, GPRS, EDGE: 850, 900, 1800, 1900 MHz
CDMA 3GCDMA2000, EV-DO: 800, 1900 MHz
GSM 3G/3.5GUMTS, HSPA+: 850, 900, 1700, 1900, 2100 MHz
4G LTELTE: 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 Bands
5G NRn2, n5, n25, n41, n66, n71, n260, n261 Bands
Wi-FiWi-Fi 6E (802.11ax)
BluetoothBluetooth 5.0 + LE 
NFCYes
GPSYes
ANT+ SupportYes
FM RadioYes
Camera System
Camera SystemRear
Telephoto: 64 MP 1/1.76" Sensor (0.8 µm Pixels) with a 28mm f/2.0 Lens
Wide: 12 MP 1/1.76" Sensor (1.8 µm Pixels) with a 26mm f/1.8 Lens
Ultra Wide: 12 MP 1/2.6" Sensor (1.4 µm Pixels) with a 13mm f/2.2 Lens (120° FoV)
Front
Standard: 10 MP 1/3.2" Sensor (1.22 µm Pixels) with a 26mm f/2.2 Lens
Camera FlashRear: 1 x LED
Focus TypeRear Wide/Telephoto: Phase-Detect Autofocus
Front Standard: Phase-Detect Autofocus
Computational PhotographyMulti-Camera Depth-of-Field Control (Portrait Mode)

Multi-Camera Dynamic Range Enhancement (HDR)

Multi-Camera Noise Reduction (Night Mode)
Video RecordingRear
UHD 8K at up to 24 fps
UHD 4K at up to 60 fps
1080p at up to 60 fps (240 fps in Slow-Mo Mode)
720p (960 fps in Slow-Mo Mode)
Front
UHD 4K at up to 60 fps
1080p at up to 30 fps
General
Biometric AuthenticationFingerprint (Under-Screen)
SensorsAccelerometer, Barometer (Altimeter), Compass, Fingerprint, Gyroscope, Proximity
Water ResistanceResistant
IP RatingIP68
KeyboardVirtual
Pointing DeviceNone
BatteryInternal Lithium-Ion (4000.0 mAh)
Wireless ChargingQi, PMA up to 15 W
Dimensions (W x H x D)2.8 x 6.0 x 0.3" / 71.2 x 151.7 x 7.9 mm
Weight6.0 oz / 171 g
Warranty LengthLimited 1-Year Warranty
Packaging Info
Package Weight0.695 lb
Box Dimensions (LxWxH)6.6 x 3.5 x 1.3"
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