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Samsung Galaxy S21 5G bar phone in Phantom Violet finish

SAMSUNG

SAMSUNG Galaxy S21 5G G991U AT&T 128GB Phantom Violet

SKU CH-9VRV-3JYB9

An unlocked 5G Android phone with a 6.2-inch Dynamic AMOLED display, Snapdragon 888 processor, 8GB RAM, 128GB storage and a triple camera system including a 64MP telephoto lens

  • Storage drive128 GB
  • Operating systemAndroid
  • Form factorBar Phones
  • RAM capacity8 GB
  • Product typeCell Phone
  • Product colorViolet
  • Snapdragon 888 powers demanding apps and 5G tasks
  • 2-inch Dynamic AMOLED display with 2400 x 1080 resolution and 120Hz refresh
  • Triple camera system with 64MP telephoto lens and 8K video recording
  • 8GB RAM and 128GB storage run Android 12 with One UI
  • 4000mAh battery supports all-day use with included UL-approved charger

Compact 5G flagship for everyday users

The Samsung Galaxy S21 5G G991U is an Android 12 smartphone built around a Qualcomm Snapdragon 888 processor with 8GB of RAM and 128GB of internal storage. Its 6.2-inch Dynamic AMOLED display delivers a 2400 x 1080 resolution and supports a 120Hz adaptive refresh rate with HDR. The triple-camera system includes a 64MP telephoto lens and 8K video recording, aimed at photographers who want pro-grade tools in a pocketable bar form factor.

AT&T network lock and missing accessories

This unit is carrier-locked to AT&T and will not operate on other networks without an unlock. It ships without original packaging, headphones, a SIM card or a manual, though a UL-approved power adapter and charging cable are included. Buyers who need dual-SIM flexibility, expandable storage or an unlocked device for international travel should verify compatibility before ordering.

Thermals noise and power in daily use

A 4000mAh battery powers the handset through typical mixed workloads, while the Snapdragon 888 chipset manages heat under sustained loads such as 8K capture or high-refresh gaming. The sealed bar chassis has no moving parts, so operation is silent aside from vibration alerts. Corning Gorilla Glass Victus protects the front panel against scratches during normal handling.

How it compares

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

Price $156.99
Cheaper than about 59% 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 lineGalaxy S21 5G
Model nameG991U
Product typeCell Phone
Product colorViolet
Memory
RAM capacity8 GB
Storage
Storage drive128 GB
Display
TouchscreenYes
Connectivity
Built-in GPSYes
Size & build
Form factorBar Phones
Software
Operating systemAndroid

Questions about this item

Does the phone ship with a charger and cable, or do I need to buy them separately?

A UL approved power adapter and charging cable are included in the box. Headphones, SIM card, manual and original packaging are not included.

This listing shows 128GB storage — is a 256GB version also available for this model?

The Galaxy S21 5G is offered with 128GB or 256GB of internal storage; this specific unit provides 128GB.

What does the 120Hz adaptive refresh rate actually do for daily use on the 6.2-inch display?

The 6.2-inch Dynamic AMOLED panel adjusts up to 120Hz for smoother scrolling and gaming, then lowers the rate to save battery when viewing static content.

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