9.2 / 10.0

Samsung Galaxy S21 5G 128GB G991U Unlocked - Good Review

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

Overview

The Samsung Galaxy S21 5G is a premium smartphone that stands out with its sleek design and top-tier performance, making it an essential choice for tech enthusiasts and professionals alike.

What's In The Box

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

Technical Specifications

Display Dynamic AMOLED 2X, 6.2 inches
Processor Exynos 2100 (or Qualcomm Snapdragon 888 depending on region)
RAM 8GB
Storage 128GB
Rear Camera 64MP, Ultra-wide and Telephoto lenses
Front Camera 10MP

Design & Build Quality

The Samsung Galaxy S21 5G boasts a sleek and modern design with a Phantom Gray finish that is both elegant and timeless. The build quality is impressive, featuring Corning Gorilla Glass Victus on both the front and back for enhanced durability against scratches and drops. Despite its premium feel, the device remains lightweight and comfortable to hold.

Performance

Powered by either an Exynos 2100 or a Qualcomm Snapdragon 888 processor, depending on your region, the Galaxy S21 5G delivers outstanding performance in daily tasks as well as demanding applications such as gaming and multitasking. The device handles multiple apps seamlessly without any lag during use.

Key Feature Analysis

The camera system of the Samsung Galaxy S21 5G is one of its standout features, offering a versatile setup with a 64MP main sensor, an ultra-wide lens for expansive shots, and a telephoto unit that supports up to 3x optical zoom. The inclusion of 8K video recording capability sets it apart from many competitors in terms of multimedia creation.

Battery Life

With a capacity of approximately 4000mAh, the battery performance on the Galaxy S21 5G is reliable for daily use. It can last through an entire day with moderate to heavy usage patterns including frequent internet browsing and social media interactions.

Pros & Cons

Pros

  • High-quality camera system
  • Powerful processor options
  • Elegant design and build quality
  • Water and dust resistance
  • Fast charging capability

Cons

  • Touchscreen issues reported in some cases
  • Limited expandable storage options
  • No headphone jack included
  • High cost for refurbished condition
  • Potential software updates causing usability issues

Final Verdict

Overall, the Samsung Galaxy S21 5G is a top-tier smartphone that excels in terms of design, performance, and camera quality. The combination of these features makes it an excellent choice for those seeking a premium Android experience.

Who should buy: Ideal for tech enthusiasts and professionals requiring high-quality multimedia capabilities and smooth performance.

Who should skip: Consider alternatives if you are concerned about the reported touchscreen issues or looking for expandable storage options.

9.2/10
Samsung Galaxy S21 5G 128GB G991U Unlocked - Good Review

Where To Buy

$126.99

Samsung Galaxy S21 5G 128GB G991U Unlocked - Good

Prices may vary

Ready to Buy?

$126.99

Prices may vary by retailer and configuration