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Deal.ai › Samsung › GSM Unlocked
Samsung
Samsung Galaxy S21 5G 256GB Dual Sim GSM Unlocked Android Smartphone (International Variant/US Compatible LTE) - Phantom Gray

Samsung Galaxy S21 5G 256GB Dual Sim GSM Unlocked Android Smartphone (International Variant/US Compatible LTE) - Phantom Gray

4.1(597 ratings)

Best price now

$575.00at WalmartChecked Nov 12

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Last seen at $575.00 at Walmart on Nov 12.
  • Checked at 2 stores.

Our take on the Samsung Galaxy S21 5G 256GB Dual Sim GSM Unlocked Android Smartphone (International Variant/US Compatible LTE) - Phantom Gray

The Galaxy S21 is Samsung's 2021 flagship phone, now sold mainly as a value option. It pairs a Snapdragon 888 with a 6.2-inch 120Hz AMOLED screen, a triple camera led by a 12MP main and 64MP telephoto, and 256GB of storage with no microSD slot. It suits buyers who want a compact, fast Android phone with a strong camera and long software support. Against newer mid-range phones it wins on camera versatility and build, but its 4,000mAh battery and 25W charging trail rivals, and the plastic back feels less premium than the S21 Ultra.

Best forBuyers who want a compact flagshipPhotographers on a budgetBusiness users needing Knox and DeXInternational travelers wanting dual SIM
Pros
  • Bright 120Hz AMOLED display
  • Versatile triple camera with 3x optical zoom
  • Snapdragon 888 handles heavy apps and games
  • Samsung Knox security and DeX desktop mode
  • Dual SIM for travel and work lines
  • 256GB storage without carrier bloatware
Cons
  • 4,000mAh battery drains fast at 120Hz
  • 25W charging is slow by current standards
  • No microSD expansion
  • Plastic back and no charger in the box
  • Runs warm under sustained gaming

Samsung Galaxy S21 5G 256GB Dual Sim GSM Unlocked Android Smartphone (International Variant/US Compatible LTE) - Phantom Gray prices at every store

  • WalmartNew

    In stockSold by FechMartReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $575.00Free shippingChecked Nov 12
    Visit Walmart
  • koshercell.orgOpen box

    Availability unknown

    $359.99+ $7.49 shippingChecked Nov 12
    Visit koshercell.org

What reviewers say

  • 4.1 / 5597 ratings

Owners rate it highly for its screen, camera and everyday speed, and many call it a good value flagship. Complaints center on battery life, slow charging and the plastic build.

What people mention
  • BatteryCriticisedOwners say the 4,000mAh cell drains quickly, especially with the 120Hz display on.
  • DisplayPraisedReviewers call the 6.2-inch AMOLED bright and smooth at 120Hz.
  • CameraPraisedThe main and 3x telephoto cameras get consistent praise for detail and color.
  • BuildMixedThe plastic back divides owners; some find it durable, others say it feels less premium.
  • ChargingCriticisedReviewers note 25W wired charging is slow next to rivals, and no charger is included.
  • PerformancePraisedThe Snapdragon 888 keeps apps and games smooth, though some report heat under load.

About the Samsung Galaxy S21 5G 256GB Dual Sim GSM Unlocked Android Smartphone (International Variant/US Compatible LTE) - Phantom Gray

The Samsung Galaxy S21 5G is an unlocked Android smartphone with 256 GB of storage and Dual SIM support. It is an international GSM variant that is compatible with US LTE. It has no pre-loaded carrier apps and works on most major U.S. It can also be used with local networks when traveling internationally.

The camera supports 8K video. Director's view lets you shoot from the front and rear cameras at the same time. Samsung DeX lets you go from phone to desktop. Wirelessly, you can use the phone as a remote, take conference calls on a TV, and drag and drop files from the phone to a PC.

Security is built in through a secure processor and Samsung Knox. The Knox Vault protects your PIN, password, pattern and blockchain private key. Biometric authentication protects private data. Microsoft Office, OneDrive and Teams are integrated, and the phone links to Windows.

Storage
256 GB
Color
Phantom Gray
SIM
Dual SIM
Network
5G, GSM unlocked, US-compatible LTE
Operating system
Android
Camera
8K video recording
Security
Samsung Knox, Knox Vault, secure processor, biometric authentication
Software
Samsung DeX, Microsoft Office, OneDrive, Teams, Link to Windows
Carrier apps
None pre-loaded

Specifications

hard_drive_capacity
256 GBSource
color
GraySource
actual_color
GraySource

Questions and answers

Is the Galaxy S21 still worth buying?
Yes if you want a compact flagship with a strong camera and 120Hz screen at a lower cost than newer models. Expect average battery life and slower charging than current phones.
Does it work on US carriers?
This is an international dual-SIM variant. It supports US LTE bands and works on most major US networks, but check 5G band support with your carrier before buying.
How does it compare with the S21 Ultra?
The Ultra adds a larger screen, a 108MP main camera with 10x zoom, and a bigger battery. The S21 is smaller, lighter and easier to use one-handed.
Does it have a microSD slot?
No. The Galaxy S21 has no microSD expansion, so the 256GB of built-in storage is all you get.
What is in the box?
The phone only. Samsung does not include a charger or earphones, so you need your own USB-C charger.
Does it support DeX and Knox?
Yes. It runs Samsung DeX for desktop mode and Knox security, which suits business use.
Where is the Samsung Galaxy S21 5G 256GB Dual Sim GSM Unlocked Android Smartphone (International Variant/US Compatible LTE) - Phantom Gray cheapest?
At Walmart, for $575.00, as of our latest check.
What do buyers say about the Samsung Galaxy S21 5G 256GB Dual Sim GSM Unlocked Android Smartphone (International Variant/US Compatible LTE) - Phantom Gray?
Rated 4.1 out of 5 from 597 ratings.
Where can I buy the Samsung Galaxy S21 5G 256GB Dual Sim GSM Unlocked Android Smartphone (International Variant/US Compatible LTE) - Phantom Gray?
2 stores we checked sell it, including Walmart, koshercell.org.

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