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Rectangular Phantom Black smartphone with glass front and back, aluminum frame, large 6.8 inch display

SAMSUNG

SAMSUNG Galaxy S21 Ultra (5G) 128GB Phantom Black cell phones - unlocked

SKU CH-RK95-MQ5D5

Unlocked 5G flagship with a 6.8 inch 120Hz Dynamic AMOLED display, 108MP quad camera system, S Pen support and 128GB storage

  • Storage drive128 GB
  • Product colorPhantom Black
  • 8-inch Dynamic AMOLED 2X display with 120Hz refresh rate for smooth visuals
  • 108MP quad-camera system including periscope and telephoto lenses for versatile photography
  • S Pen compatibility adds precise input for notes and creative work
  • 5000mAh battery supports fast, wireless and reverse charging for all-day power
  • IP68 water and dust resistance protects the device in challenging environments

Pinnacle Galaxy for power creators

The Galaxy S21 Ultra (5G) is Samsung's elite flagship with a massive display, quad-lens camera, and S Pen support. It is built for users who want the very best in photography, editing, multitasking, and S Pen productivity. The 6.8 inch Dynamic AMOLED 2X screen runs at 120Hz with HDR10+ and 1500 nits peak brightness.

Fully unlocked single SIM flexibility

This unit arrives fully unlocked for any compatible carrier with Single SIM support via Nano-SIM or eSIM. No carrier bloatware restricts network choice or software updates. The Android 11 launch OS is upgradable to Android 14 for current security and features.

Gorilla Glass Victus and IP68 durability

Glass front and back use Gorilla Glass Victus over an aluminum frame for structural rigidity. IP68 water and dust resistance protects against accidental submersion. The 5000mAh battery supports fast, wireless, and reverse charging through the USB-C port. Buyers needing pristine cosmetic condition should note this is a Grade C device.

How it compares

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

Price $157.99
Typical for this category: the median of 2,409 items is $168.99.
Storage drive 128 GB
Typical for this category: the median of 1,888 items is 128 GB.

Specifications

Product
Product colorPhantom Black
Storage
Storage drive128 GB

Questions about this item

Will the 128GB storage need expansion later?

The phone has 128GB internal storage with no microSD slot, so space cannot be expanded after purchase.

What limits the 120Hz display during sustained use?

The Dynamic AMOLED 2X panel runs at 120Hz, but the Snapdragon 888 or Exynos 2100 may throttle under continuous heavy load, reducing frame rates.

How hot does the 5000mAh battery get when the phone runs all day?

The 5000mAh battery supports fast, wireless and reverse charging; sustained 5G and 120Hz use will warm the aluminum frame, though IP68 sealing remains intact.

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