9.2 / 10.0

Samsung Galaxy S21 S991U 5G 128GB FACTORY UNLOCKED VERIZON ATT TMOBILE EXCELLENT Review

Published October 16, 2025 • 8 min read • 5 views

Overview

The Samsung Galaxy S21 is a high-end smartphone that offers top-tier performance and features, making it an excellent choice for users seeking the latest technology without compromising on quality or functionality.

What's In The Box

  • Main product
  • Carrying case or accessories
  • Charging cable
  • Documentation

Technical Specifications

Operating System Android 11, OneUI 3.1
Display Size 6.2 inches Dynamic AMOLED 2X display
RAM 8GB
Storage Capacity 128GB
Rear Camera 64MP (telephoto) + 12MP (wide) + 12MP (ultrawide)
Front Camera 10MP

Design & Build Quality

The Samsung Galaxy S21 boasts a sleek and modern design, featuring a matte finish that minimizes fingerprint smudges. The device is constructed with durable materials, such as Corning Gorilla Glass Victus on both the front and back sides, ensuring long-lasting durability. The slim profile and lightweight build make it comfortable to hold for extended periods.

Performance

Powered by the powerful Exynos 2100 processor, the Galaxy S21 delivers lightning-fast performance in day-to-day usage. Whether multitasking with several apps open or playing graphically intense games, it handles everything smoothly without any noticeable lag. The device's responsiveness is also commendable, ensuring a seamless user experience.

Key Feature Analysis

The Galaxy S21 excels in its camera capabilities, offering versatile shooting options with triple rear cameras and 30x digital zoom. Video recording features are equally impressive, supporting 8K video at up to 24fps and 4K UHD recording at 60 frames per second. However, some users have encountered touch screen responsiveness issues that need addressing through software updates or temporary fixes.

Battery Life

With a 4000mAh battery, the Galaxy S21 provides solid battery life for most daily tasks, though heavy usage might drain it faster. The device supports fast charging and wireless power sharing, enhancing its utility and convenience.

Pros & Cons

Pros

  • High-quality display with vibrant colors
  • Powerful performance suitable for multitasking
  • Superb camera setup with multiple lens options
  • Fast-charging capabilities
  • Factory-unlocked, compatible with major carriers

Cons

  • Occasional touch screen responsiveness issues reported
  • Battery life may be insufficient for heavy users
  • No headphone jack included
  • Expensive when compared to mid-range alternatives

Final Verdict

The Samsung Galaxy S21 is a well-rounded smartphone that excels in design, performance, and camera quality. While it comes with some minor drawbacks such as touch screen responsiveness issues and lack of headphone jack, the overall experience remains highly satisfactory.

Who should buy: Ideal for tech enthusiasts seeking top-tier features and performance.

Who should skip: Users on a tight budget might prefer more affordable alternatives.

9.2/10
Samsung Galaxy S21 S991U 5G 128GB FACTORY UNLOCKED VERIZON ATT TMOBILE EXCELLENT Review

Where To Buy

$149.48

Samsung Galaxy S21 S991U 5G 128GB FACTORY UNLOCKED VERIZON ATT TMOBILE EXCELLENT

Prices may vary

Ready to Buy?

$149.48

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