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Large silver smartphone with edge-to-edge 6.8-inch screen and quad rear camera array

SAMSUNG

SAMSUNG Galaxy S21 Ultra 128GB 6.8" 5G AT&T Phantom Silver

SKU CH-4T50-5Y5CV

A 6.8-inch 1440 x 3200 display smartphone with 128GB storage, 108MP quad rear camera, 40MP front camera, 5G on AT&T, Android 10, and adaptive 10 to 120 Hz refresh rate

  • Storage drive128 GB
  • Operating systemAndroid 10
  • Technology type5G
  • Screen resolution1440 × 3200
  • Back camera108 MP
  • Product typeCell Phone
  • Large 6.8-inch Quad HD+ display shows sharp 1440 x 3200 detail
  • 108MP wide camera plus three extra lenses capture 8K video and 33MP stills
  • 120 Hz adaptive refresh rate smooths scrolling while saving battery
  • 128GB built-in storage holds apps, photos and 8K clips
  • 5G on AT&T network delivers fast mobile data speeds

Product Identity

The Samsung Galaxy S21 Ultra is a 6.8-inch Android 10 smartphone with 128GB storage and a 108MP quad rear camera system. It is built for AT&T 5G networks and finished in Phantom Silver. This device targets photographers and power users who want extensive optical zoom and a large, high-resolution canvas for media and optional S Pen input.

Upgrade Context

The handset replaces phones limited to single focal lengths or lower-resolution sensors by adding 3x and 10x optical zoom plus 100x Space Zoom. The jump is worthwhile for users who regularly shoot distant subjects or need 8K video with 33MP frame extraction. Buyers who do not need multi-lens versatility or 5G on AT&T will not benefit from the added complexity.

Interface Limits

The Dynamic AMOLED 2x panel adjusts its refresh rate between 10 and 120 Hz to balance smoothness and battery life. Gorilla Glass Victus covers the 1440 x 3200 display. The integrated 40MP front camera sits in a centred hole-punch cut-out. Optional S Pen support relies on capacitive interaction without a dedicated storage slot in the chassis.

How it compares

Measured against everything we stock in No-Contract Smartphones, at today’s prices. Recalculated every night.

Price $195.99
Pricier than about 54% of the 646 comparable items (median $180.49).
Storage drive 128 GB
Typical for this category: the median of 506 items is 128 GB.

Specifications

Product
Brand nameSamsung
Product typeCell Phone
Product colorSilver
Storage
Storage drive128 GB
Display
Screen resolution1440 × 3200
Audio & video
Back camera108 MP
Connectivity
Technology type5G
Software
Operating systemAndroid 10

Questions about this item

What are the exact height, width, and depth dimensions of the Galaxy S21 Ultra?

The phone measures 6.5 inches tall, 2.98 inches wide, and 0.35 inches deep.

Does the S21 Ultra support an S Pen, and is one included in the box?

The S21 Ultra supports an optional S Pen for editing and annotation, but the pen is sold separately and not included with the phone.

Will the 128GB internal storage be expandable with a microSD card later?

No, the Galaxy S21 Ultra does not have a microSD card slot, so the 128GB of internal storage cannot be expanded after purchase.

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