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Samsung Galaxy S21 5G in Phantom White, flat glass back, triple camera array, 6.2 inch display

SAMSUNG

Samsung Galaxy S21 5G G991U 128GB Phantom White cell phones - unlocked

SKU CH-40GG-5Z3RS

A 6.2 inch Android smartphone with a triple 64 MP camera, 128 GB storage and 8 GB RAM, factory unlocked for GSM and CDMA networks

  • Mobile FrequenciesWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot
  • ColorWhite
  • SensorsFingerprint (under display, ultrasonic), accelerometer, gyro
  • Main Display Size6.2"
  • Rear Camera(Triple) 64 MP + 12 MP + 12 MP
  • Operating SystemAndroid
  • 2" Dynamic AMOLED 2X display for vivid visuals
  • Triple rear camera with 64 MP main sensor for detailed photos
  • 8 GB RAM and octa-core processor for smooth multitasking
  • 128 GB internal storage for apps and media
  • Factory unlocked for use on major U.S. networks

Unlocked Samsung Galaxy S21 5G 128GB

The Samsung Galaxy S21 5G G991U is an unlocked Android smartphone with 128GB storage and 8GB RAM. It runs on an octa-core processor with speeds up to 2.84 GHz. The 6.2-inch Dynamic AMOLED 2X display has a 1080 x 2400 resolution and Gorilla Glass Victus. It supports GSM and CDMA networks without carrier apps.

Best for single-SIM users wanting 8K video

This phone suits buyers who need an unlocked US model for flexible carrier choice and international travel. The triple rear camera captures 8K video and 64 MP photos. Samsung DeX enables desktop-like productivity. Knox security protects business data. Buyers who need dual-SIM standby or expandable storage via microSD should look elsewhere.

128GB fixed storage with no card slot

The internal storage is 128GB with no microSD expansion slot. This capacity decides whether the device can hold your apps, media and offline files long-term. The USB Type-C 3.2 port supports OTG for external drives, but internal space cannot be increased. Verify that 128GB meets your needs before purchase.

Highlights

  • 2" Dynamic AMOLED 2X display for vivid visuals
  • Triple rear camera with 64 MP main sensor for detailed photos
  • 8 GB RAM and octa-core processor for smooth multitasking
  • 128 GB internal storage for apps and media
  • Factory unlocked for use on major U.S. networks

Specifications

BrandSamsung
Mobile FrequenciesWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot
ColorWhite
SensorsFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
Main Display Size6.2"
Rear Camera(Triple) 64 MP + 12 MP + 12 MP
Operating SystemAndroid
ProcessorOcta-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680
Processor Speed1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680
RAM8GB
Storage128GB
ConnectivityWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot
USBUSB Type-C 3.2, USB On-The-Go
Battery TypeNon-removable Li-Ion
Dimensions (H x W x D)5.97 x 2.80 x 0.31 in
Package ContentsSamsung Galaxy S21 5G, Wall Charger

Questions about this item

Does the Galaxy S21 5G G991U need a nano-SIM card to activate service?

Yes, the unlocked phone accepts a standard nano-SIM from any compatible GSM or CDMA carrier for voice and data.

Can I keep using my existing USB-A chargers and cables with the USB Type-C 3.2 port?

You will need a USB-C to USB-A cable or adapter; the included wall charger has a USB-C output for the supplied cable.

How can I verify the 6.2 inch Dynamic AMOLED 2X display is operating at its 1080 x 2400 pixel resolution?

Open Settings, tap Display, then Screen resolution to confirm it shows FHD+ (1080 x 2400).

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