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SAMSUNG

SAMSUNG Galaxy S21+ 5G SM-G996U 128GB Phantom Black cell phones - unlocked

SKU CH-X809-842P3

An unlocked 6.7" AMOLED smartphone with a triple 64 MP camera, 128 GB storage and IP68 water resistance

  • CPUOcta-core (1 × 2.84 GHz Kryo 680 & 3 × 2.42 GHz Kryo 680 & 4
  • Storage drive128 GB
  • Connection optionsWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot
  • Operating systemAndroid
  • Form factorSmart Phones
  • Technology type5G
  • 7 inch Dynamic AMOLED 2X display with 2400 x 1080 resolution
  • Triple rear camera system capturing 8K video at 4320p
  • IP68 water resistance protects against dust and immersion
  • 128GB storage plus 8GB RAM for smooth multitasking
  • Unlocked for GSM and CDMA networks with no carrier apps

Unlocked 5G Smartphone

This Samsung Galaxy S21+ 5G is an unlocked Android smartphone compatible with most major U.S. networks and international carriers. It arrives without carrier-installed apps for a clean, customizable software experience. The device supports both GSM and CDMA technologies for broad connectivity.

Compatibility Checklist

Verify your carrier supports the phone's 5G bands and that you have a Nano SIM card ready for activation. Ensure your existing accessories use standard interfaces such as USB-C or Bluetooth, as no proprietary connectors are included. Confirm your Wi-Fi network operates on a supported frequency band.

Build and Daily Use

The handset features a 6.7 inch Dynamic AMOLED 2X display protected by Corning Gorilla Glass Victus and an IP68 water-resistance rating. An ultrasonic fingerprint sensor sits under the screen for secure unlocking. A triple rear camera system with a 64 MP primary sensor handles 8K video capture, while a 10 MP front camera supports dual video calls.

How it compares

Measured against everything we stock in Unlocked Smartphones, at today’s prices. Recalculated every night.

Price $132.99
Cheaper than about 60% of the 2,409 comparable items (median $168.99).
Storage drive 128 GB
Typical for this category: the median of 1,888 items is 128 GB.

Specifications

Product
Brand nameSamsung
Product lineGalaxy
Model nameSamsung Galaxy S21+ 5G
Part numberSM-G996U
Product colorBlack
Processor
CPUOcta-core (1 × 2.84 GHz Kryo 680 & 3 × 2.42 GHz Kryo 680 & 4 × 1.8 GHz Kryo 680
Processor chipQualcomm Snapdragon 888
Core configurationOcta-core
CPU clock speed2.84 GHz
Memory
RAM capacity8 GB
Storage
Storage drive128 GB
Display
TouchscreenYes
Main screen size6.7 in (17 cm)
Screen resolution2400 × 1080
Pixel density394 ppi
Display technologyAMOLED
Audio & video
Back camera(Triple) 64 MP + 12 MP + 12 MP
Camera flashLED
Video recording4320p
AutofocusYes
Selfie camera10 MP
SoundYes
Connectivity
Connection optionsWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot
Technology type5G
Cellular bandsWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot
SIM configurationSingle SIM Card
SIM typeNano SIM
BluetoothBluetooth v5.0
Built-in GPSYes
Ports & slots
Expansion slotNone
USB portsType-C 3.2, USB On-The-Go
Audio connectionUSB Type-C
Power
Battery capacity4,800 mAh
Battery typeNon-removable Li-Ion
Charging optionsFast Charging / Wireless Charging
Size & build
Form factorSmart Phones
Overall dimensions6.36 × 2.98 × 0.31
In the box
In the boxSamsung Galaxy S21+ 5G, Wall Charger
Environment & compliance
Water resistanceIP68
Software
Operating systemAndroid
More details
Built-in sensorsFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer

Questions about this item

Does the box include a charger or earbuds, or must they be bought separately?

The phone ships unlocked with a USB-C cable and SIM eject tool. Power adapter and earbuds are not included and must be purchased separately.

Is the 128 GB version enough storage, or should I wait for a larger capacity?

This model is offered only in 128 GB with 8 GB RAM. No higher-capacity variant is listed, so 128 GB is the sole option.

What does the 64 MP main sensor actually deliver for everyday photos and 8K video?

The triple rear array uses a 64 MP primary sensor alongside 12 MP ultra-wide and telephoto lenses, enabling 4320p video capture and high-detail stills.

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