Galaxy A23 vs Galaxy S21 5G

The Samsung Galaxy A23, released in March 2022, and the Samsung Galaxy S21 5G, launched in January 2021, represent different segments of Samsung's smartphone offerings. While both operate on the Android platform, the Galaxy S21 5G was a flagship device at its release, emphasizing premium performance and features, whereas the Galaxy A23 is positioned as a more accessible option. The primary differentiators lie in their core processing power, display technology, and camera capabilities.

When considering the practical lifespan of these devices, their release timelines and software support policies are key factors.

• Release Timeline: The Galaxy S21 5G was released in January 2021, making it an older model compared to the Galaxy A23, which launched in March 2022.
• OS Support: The Galaxy S21 5G shipped with Android 11 and has received updates up to Android 15, which is its final major Android update. The Galaxy A23 launched with Android 12 and is expected to receive two major Android updates, with security updates for four years. This means the Galaxy A23 5G has been updated to Android 15 as of July 2025.
• Repairability: The Galaxy S21 5G generally has a higher repairability score, with some sources indicating it is relatively easy to disassemble and replace parts, scoring around 7.5 out of 10. The Galaxy A23 is also considered relatively repairable, scoring around 6.75 to 8.1 out of 10, with accessible back plates and replaceable batteries.

The performance of a smartphone significantly impacts daily usage, from app responsiveness to handling demanding tasks.

• Processing Power: The Galaxy S21 5G features a processor designed for flagship performance, enabling smooth operation for intensive applications and multitasking. The Galaxy A23, on the other hand, utilizes a mid-range processor, which capably handles everyday tasks but may show limitations with very demanding applications or extensive multitasking.
• Multitasking and Responsiveness: With 8GB of RAM, the Galaxy S21 5G offers robust multitasking capabilities, allowing users to switch between numerous applications without significant slowdowns. The Galaxy A23 comes with various RAM configurations, from 4GB to 8GB, with higher RAM variants providing a smoother experience for moderate multitasking.
• Storage Options: The Galaxy S21 5G offers internal storage options of 128GB or 256GB without expandable storage. The Galaxy A23 provides 64GB or 128GB internal storage, with the added flexibility of a microSD card slot for expansion up to 1TB.
• Battery Behavior: The Galaxy A23 is equipped with a larger 5000 mAh battery, generally providing extended usage times. The Galaxy S21 5G has a 4000 mAh battery, which, combined with its efficient processor and adaptive display, can still offer a full day of use for many users, though heavy usage might require more frequent charging.

The display is a primary interface for smartphone interaction, and differences in technology and specifications can greatly affect the viewing experience.

• Display Technology and Clarity: The Galaxy S21 5G features a 6.2-inch Dynamic AMOLED 2X display, known for its vibrant colors, deep blacks, and excellent contrast. The Galaxy A23 has a larger 6.6-inch PLS TFT LCD, which offers good clarity but does not achieve the same level of contrast or color vibrancy as an AMOLED panel.
• Refresh Rate and Smoothness: The Galaxy S21 5G boasts an adaptive 120Hz refresh rate, which dynamically adjusts to content for smooth scrolling and responsive interactions while conserving power. The Galaxy A23 offers a 90Hz refresh rate (or 120Hz on the 5G variant), providing a smoother visual experience than standard 60Hz displays.
• Brightness Levels: The Dynamic AMOLED 2X display of the Galaxy S21 5G can achieve higher peak brightness, making it more comfortable to view content in bright outdoor conditions. The Galaxy A23's LCD panel may struggle with outdoor visibility in direct sunlight.

Camera systems are a significant consideration for many users, and both devices offer distinct photographic capabilities.

• Rear Camera System: The Galaxy S21 5G features a versatile triple-camera setup, including a 12MP main sensor, a 12MP ultrawide, and a 64MP telephoto lens with 3x hybrid optical zoom, providing flexibility for various shooting scenarios. The Galaxy A23 comes with a quad-camera array, highlighted by a 50MP main sensor with optical image stabilization (OIS), a 5MP ultrawide, and two 2MP sensors for macro and depth.
• Photography Performance: The Galaxy S21 5G excels in overall image quality, offering sharp details, good dynamic range, and improved low-light performance through software enhancements. The Galaxy A23's 50MP main camera can capture decent photos in good lighting, but its performance in low-light conditions and with its secondary lenses may be less consistent.
• Video Recording: The Galaxy S21 5G supports video recording up to 8K resolution, along with advanced features like Director's View for multi-camera recording. The Galaxy A23 records video at a maximum of 1080p at 30 frames per second, lacking higher frame rate options or 4K capabilities.
• Audio Experience: The Galaxy S21 5G includes stereo speakers, providing a more immersive audio experience for media consumption. The Galaxy A23 typically features a mono speaker.