Galaxy S21 5G Vs iPhone 12

The Samsung Galaxy S21 5G, released in January 2021, and the Apple iPhone 12, launched in October 2020, represent flagship smartphones from their respective ecosystems. While both devices offer robust performance and advanced camera systems, they differ significantly in their operating systems, display technologies, and overall design philosophies. The Galaxy S21 5G operates on Android, providing a customizable experience, whereas the iPhone 12 runs on iOS, known for its streamlined interface and long-term software support.

The longevity of a smartphone is influenced by its release date, software support, and repairability. The iPhone 12, released in October 2020, is slightly older than the Galaxy S21 5G, which debuted in January 2021.

• Software Support: The iPhone 12 is expected to receive major iOS updates for approximately 5 to 7 years from its release, potentially extending its software lifespan until around 2028-2030, with security updates likely continuing until 2027. In contrast, the Galaxy S21 5G, which launched with Android 11, received its final major Android operating system update (Android 15) in May 2025, and its security updates concluded around November 2025 or February 2026.
• Repairability: The Galaxy S21 5G generally has a repairability score that indicates it is relatively easy to disassemble, with modular components and a removable back. However, some reports note challenges with battery removal due to strong adhesive and screen fragility. The iPhone 12 received a repairability score of 6 out of 10 from iFixit, indicating that while many components are modular, certain repairs, such as screen and camera replacements, may require proprietary software from the manufacturer for full functionality, posing challenges for independent repairs.
• Practical Lifespan: Users prioritizing extended software feature updates will find the iPhone 12 offers a longer period of support. For those who prioritize ease of physical repair for certain components, the Galaxy S21 5G may present fewer hurdles, though both devices have specific repair considerations.

Both devices deliver capable performance for daily tasks, but their underlying architectures and available configurations present some differences.

• Storage Options: The Galaxy S21 5G is available with 128GB or 256GB of internal storage. The iPhone 12 offers more flexibility with 64GB, 128GB, and 256GB storage configurations.
• Battery Behavior: The Galaxy S21 5G features a 4000 mAh battery. User experiences regarding its battery life vary, with some reporting it lasts a full day, while others note faster drainage with heavy use. The iPhone 12 is equipped with a 2815 mAh battery. Users often report that it can last a full day with moderate usage, but demanding tasks like video calls or extensive 5G use can deplete it more quickly, sometimes leading to noticeable warmth.
• System Responsiveness: The Galaxy S21 5G handles demanding applications and multitasking smoothly, providing a fluid user experience. The iPhone 12 also offers consistent and smooth performance across everyday tasks and more intensive applications, maintaining responsiveness over time.
• RAM: The Galaxy S21 5G comes with 8GB of RAM, which can benefit users who frequently switch between many applications or engage in heavy multitasking. The iPhone 12 features 4GB of RAM, optimized by its operating system for efficient performance.

The display is a primary interaction point, and both devices offer high-quality viewing experiences with distinct characteristics.

• Display Technology: The Galaxy S21 5G features a Dynamic AMOLED 2X display, while the iPhone 12 uses a Super Retina XDR OLED panel. Both technologies provide deep blacks, high contrast, and vibrant colors, contributing to an immersive visual experience.
• Resolution and Clarity: The Galaxy S21 5G has a resolution of 1080 x 2400 pixels, resulting in a pixel density of approximately 421 pixels per inch (ppi). The iPhone 12 offers a slightly higher resolution of 2532 x 1170 pixels, with a pixel density of about 460 ppi, providing a marginally sharper image.
• Brightness and Refresh Rate: The Galaxy S21 5G boasts an adaptive refresh rate of up to 120Hz, which contributes to smoother scrolling and more fluid animations, alongside a peak brightness of up to 1300 nits. The iPhone 12 features a standard 60Hz refresh rate and offers a typical brightness of 625 nits, with a peak brightness of 1200 nits for HDR content.
• Screen Size: The Galaxy S21 5G has a 6.2-inch display, while the iPhone 12 features a 6.1-inch display. This results in a very similar overall viewing area and handling experience.

Both smartphones offer capable camera systems designed to capture high-quality photos and videos, though they approach imaging with different hardware configurations.

• Rear Camera System: The Galaxy S21 5G is equipped with a versatile triple-camera setup on the rear, including a 12-megapixel wide-angle lens, a 64-megapixel telephoto lens with 3x hybrid optical zoom, and a 12-megapixel ultrawide lens. The iPhone 12 features a dual-camera system on the rear, consisting of a 12-megapixel wide-angle lens and a 12-megapixel ultrawide lens.
• Photography Performance: Both devices excel in everyday photography and offer Night Mode for improved low-light performance. The Galaxy S21 5G provides greater flexibility with its dedicated telephoto lens for optical zoom. The iPhone 12's main wide camera features a wider aperture, which can capture more light in various conditions.
• Video Recording: The Galaxy S21 5G supports video recording up to 8K resolution at 24 frames per second (fps) and 4K at 30 or 60 fps. The iPhone 12 records video up to 4K resolution at 24, 30, or 60 fps, and also supports HDR video recording with Dolby Vision.
• Front Camera and Audio: Both phones feature capable front-facing cameras for selfies and video calls; the Galaxy S21 5G has a 10-megapixel sensor, while the iPhone 12 has a 12-megapixel TrueDepth camera that also enables Face ID. Both devices include stereo speakers for media consumption.