Key Features & Overview

• Display: 6.7-inch Dynamic AMOLED 2X, 120Hz refresh rate. Smooth, vibrant, and excellent for media consumption and gaming.

• Processor: Snapdragon 888 (in the US) or Exynos 2100 (internationally). Both are top-tier chips from 2021, delivering powerful and fast performance even for today's standards.

• RAM: 8GB - Plenty for smooth multitasking.

• Storage: 128GB (Non-expandable). This is the only storage option for the S21 Plus, so consider if this is enough for you long-term.

• Camera System:

  • Main: 64MP Telephoto lens with 3x Hybrid Zoom (a standout feature).

  • Ultra-Wide: 12MP.

  • Wide: 12MP.

  • Front: 10MP.

  • Capable of recording 8K video.

• Battery: 4800mAh - A large battery that should comfortably last a full day with moderate to heavy use.

• Key Advantage: Factory Unlocked means it is not tied to any specific carrier. You can use it with any compatible GSM (like AT&T, T-Mobile) or CDMA (like Verizon) carrier worldwide by simply inserting a new SIM card.

Pros & Cons

Pros:

• Premium Build & Design: The "Contour Cut" camera housing is iconic and feels high-end. The Phantom Black color is sleek and timeless.

• Excellent Performance: The processor handles everything from daily tasks to intensive gaming without a hitch.

• Superb Display: The large, high-refresh-rate screen is a joy to use for everything from scrolling to watching videos.

• Great Battery Life: The 4800mAh battery is a significant advantage over the standard S21.

• Versatile Camera System: The 64MP telephoto sensor provides better zoom quality than many competitors at the time.

• Factory Unlocked Flexibility: The freedom to switch carriers or use local SIMs while traveling is a huge plus.

Cons:

• No Expandable Storage: The 128GB is fixed. If you take a lot of 8K video or have a massive media library, this could fill up quickly.

• No Charger in Box: Following the trend at the time, Samsung stopped including a charger and headphones.

• Plastic Back (on some models): While the S21+ has a glass back, it's worth noting the build materials. The standard S21 had a plastic back, but the Plus model uses a more premium Gorilla Glass Victus on the back.

• Aged Model: It will not receive as many Android OS updates as the newer S23 or S24 series, though it should still get security updates for a while.