Samsung Galaxy S21 Ultra 128GB 5G Smartphone (Unlocked, Black)

BH #SAGAS21U12SB • MFR #SM-G998UZKAXAA
Samsung Galaxy S21 Ultra 128GB 5G Smartphone (Unlocked, Black)
Key Features
  • GSM + CDMA / 4G LTE + 5G Compatible
  • North American Variant
  • Quad Cameras (108MP, 12MP, 2 x 10MP)
  • Wide, Ultra-Wide, 3x Tele & 10x Tele
Create professional quality content with the pro-grade camera system of the Samsung Galaxy S21 Ultra STORAGE 5G Smartphone. The quad camera system provides a 108MP wide, 12MP ultra-wide, 10MP 3x telephoto, and 10MP 10x telephoto cameras. In addition to 3x & 10x optical zoom, Space Zoom offers up to 100x digital zoom for long distance shots. Video recording can reach up to 8K resolution, and with 8K Video Snap, specific memories can be plucked out as 33MP hi-res stills. With support for an (optional) S Pen, you can precisely edit the footage, annotate, draw, and more.
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 Ultra SM-G998U Overview

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

Create professional quality content with the pro-grade camera system of the Samsung Galaxy S21 Ultra STORAGE 5G Smartphone. The quad camera system provides a 108MP wide, 12MP ultra-wide, 10MP 3x telephoto, and 10MP 10x telephoto cameras. In addition to 3x & 10x optical zoom, Space Zoom offers up to 100x digital zoom for long distance shots. Video recording can reach up to 8K resolution, and with 8K Video Snap, specific memories can be plucked out as 33MP hi-res stills. With support for an (optional) S Pen, you can precisely edit the footage, annotate, draw, and more.

With a stunning 6.8" Quad HD+ Dynamic AMOLED 2x screen, the S21 Ultra has a large canvas to accommodate an S Pen. Integrated AI automatically adjusts the display's refresh rate between 10 to 120 Hz based on the content you view, providing a smooth scrolling experience when you need it, and battery preservation 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 40MP camera to handle your selfies.

The screen on the Samsung S21 Ultra 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 Ultra 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-G998 is a North American variant of the S21 Ultra 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.

Space Zoom

If you can't get to your subject, bring it to you with Space Zoom. In addition to the 3x and 10x optical zoom abilities of the telephotos lenses, Space Zoom provides up to 100x digital zoom for focusing 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.

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 40MP 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.

Low-Light Photos

The Bright Night sensor of the S21 Ultra allows for clear image capture with bright and vivid colors, even in the dark of night. It also gives you the ability to control exposure time. The camera system is also equipped with nona-binning, which combined 9 pixels into 1. The result are pixels that can receive more light for sharper low-light shots with less noise.

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 Ultra without the need of a cable. You can also use the S21 Ultra to charge other devices. With Wireless PowerShare support, you can place another compatible Galaxy smartphone or Galaxy Buds onto the S21 Ultra 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.

Motion Mirror

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

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 Ultra 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.

Additional Features

Every lens supports 4K video at 60 fps
12-bit HDR combines two 10-bit frames for exceptional dynamic range
12-bit RAW support in Pro Mode
Audio tuned by AKG
5000mAh battery for all-day power
Microsoft OneDrive support for cloud syncing files
Large ultrasonic fingerprint reader
IP68 water and dust resistance
Compatible with Google Duo

Samsung S21 Ultra SM-G998U Specs

Performance
Operating SystemAndroid 11
Memory12 GB
ChipsetQualcomm Snapdragon888
CPU2.84 GHz Kryo 680 Single-Core
2.42 GHz Kryo 680 Triple-Core
1.8 GHz Kryo 680 Quad-Core
GPUAdreno 660
Storage128 GB
Display
Size6.8"
Native Resolution3200 x 1440
Refresh Rate120 Hz (at QHD+ Resolution)
Aspect Ratio20:9
Pixel Density515 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 5.2 + LE 
NFCYes
GPSYes
ANT+ SupportYes
FM RadioYes
Camera System
Camera SystemRear
Wide: 108 MP 1/1.33" Sensor (0.8 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
Telephoto: 10 MP 1/3.2" Sensor (1.22 µm Pixels) with a 240mm f/4.9 Lens
Telephoto: 10 MP 1/3.2" Sensor (1.22 µm Pixels) with a 70mm f/2.4 Lens
Front
Wide: 40 MP 1/2.8" Sensor (0.7 µm Pixels) with a 26mm f/2.2 Lens
Camera FlashRear: 1 x LED
Focus TypeRear Wide: Laser Autofocus, Phase-Detect Autofocus
Rear Ultra Wide/Telephoto: Phase-Detect Autofocus
Front Wide: Phase-Detect Autofocus
Computational PhotographyMulti-Camera Noise Reduction (Night Mode)

Multi-Camera Depth-of-Field Control (Portrait Mode)

Multi-Camera Dynamic Range Enhancement (HDR)
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
1080p at up to 60 fps
UHD 4K at up to 60 fps
General
Biometric AuthenticationFingerprint (Under-Screen)
SensorsAccelerometer, Barometer (Altimeter), Compass, Fingerprint, Gyroscope, Proximity
Water ResistanceResistant
IP RatingIP68
KeyboardVirtual
Pointing DeviceNone
BatteryInternal Lithium-Ion (5000.0 mAh)
Fast Charging TechnologyUSB Power Delivery
Wireless ChargingQi, PMA up to 15 W
Dimensions (W x H x D)3.0 x 6.5 x 0.4" / 75.6 x 165.1 x 8.9 mm
Weight8.1 oz / 229 g
Warranty LengthLimited 1-Year Warranty
Packaging Info
Package Weight0.85 lb
Box Dimensions (LxWxH)7.1 x 3.6 x 1.4"
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