Galaxy S21+ 5G Vs Galaxy S9

The practical lifespan of a smartphone is influenced by its release timeline, software support, and repairability.

• Release Timeline: The Galaxy S9 was released in March 2018, while the Galaxy S21 Plus 5G launched in January 2021. This three-year difference means the S21 Plus 5G benefits from more recent hardware and a longer potential support window.
• Software Longevity: The Galaxy S9 originally launched with Android 8.0 and received major OS updates up to Android 10, with security updates concluding around April 2022. The Galaxy S21 Plus 5G, however, launched with Android 11 and is part of Samsung's policy to provide three major Android OS upgrades and four years of security updates, offering a considerably longer period of official software support.
• Repairability: Both devices present challenges for repair due to their glass construction and the use of strong adhesives. The Galaxy S9 received a low repairability score of 4 out of 10 from iFixit, indicating difficulty in accessing internal components and replacing parts like the display and battery. The Galaxy S21 Plus 5G is also considered tedious to repair, with its battery securely glued, though some components are modular.

Performance in smartphones is determined by the efficiency of their internal components, impacting daily operations and demanding applications.

• Overall Responsiveness: The Galaxy S21 Plus 5G features a more advanced processor, enabling smoother navigation, quicker app loading times, and more efficient multitasking compared to the Galaxy S9. Users will experience a noticeable difference in speed and fluidity with the newer model.
• Battery Behavior: The Galaxy S9 is equipped with a 3000mAh battery, which users reported typically lasts a full day with moderate use but often requires nightly charging. The Galaxy S21 Plus 5G has a larger 4800mAh battery, providing excellent endurance that can extend through a full day of heavy use, and potentially two days with lighter usage.
• Storage Options: The Galaxy S9 offered internal storage options of 64GB, 128GB, or 256GB, with the ability to expand storage via a microSD card up to 400GB. The Galaxy S21 Plus 5G comes with 128GB or 256GB of internal storage but does not include a microSD card slot for expansion.

The display is a primary interface, and its quality significantly impacts the user experience.

• Display Technology and Clarity: The Galaxy S9 features a 5.8-inch Quad HD+ Super AMOLED display with a resolution of 1440x2960 pixels, offering sharp visuals and vibrant colors. The Galaxy S21 Plus 5G has a larger 6.7-inch Dynamic AMOLED 2X display with a Full HD+ resolution of 1080x2400 pixels. While the S9 has a higher pixel density, the S21 Plus 5G's newer panel technology provides excellent color accuracy and brightness.
• Brightness and Outdoor Visibility: The Galaxy S9's display can reach a peak brightness of 1,130 nits, ensuring good visibility in various lighting conditions. The Galaxy S21 Plus 5G also offers high peak brightness, making it comfortable for outdoor viewing.
• Refresh Rate: The Galaxy S9 features a standard 60Hz refresh rate. The Galaxy S21 Plus 5G, however, boasts an adaptive refresh rate of up to 120Hz, which provides a smoother scrolling experience and more fluid animations, enhancing the overall visual interaction.

Camera capabilities are a key differentiator, influencing the quality of photos and videos captured.

• Rear Camera System: The Galaxy S9 features a single 12-megapixel rear camera with a variable aperture (f/1.5 and f/2.4), designed to perform well in varying light conditions, particularly excelling in low-light photography. The Galaxy S21 Plus 5G comes with a versatile triple-camera setup, including a 12MP wide-angle, a 64MP telephoto with 3x hybrid zoom, and a 12MP ultrawide lens. This configuration offers greater flexibility for different types of shots.
• Photography Performance: The S9's camera delivers detailed photos with good color saturation, and its variable aperture helps capture clear images in challenging lighting. The S21 Plus 5G produces vibrant and detailed images with impressive dynamic range, and its software enhancements improve depth estimation in portrait mode and overall low-light performance.
• Video Recording: The Galaxy S9 supports 4K video recording at 30 or 60 frames per second (fps) and features Super Slow-mo at 720p 960fps. The S21 Plus 5G elevates video capabilities with support for up to 8K resolution at 24fps, 4K at 60fps, and 720p at 960fps slow-motion, offering more options for high-quality video capture.

Beyond core features, several practical elements contribute to the daily usability and overall experience of a smartphone.

• Connectivity: The Galaxy S9 supports 4G LTE networks. The Galaxy S21 Plus 5G, as its name suggests, offers advanced 5G connectivity, providing faster download and upload speeds in supported areas, alongside Wi-Fi 6 and Bluetooth 5.0.
• Ports and Sensors: The Galaxy S9 includes a 3.5mm headphone jack and a rear-mounted fingerprint sensor. The Galaxy S21 Plus 5G utilizes a USB-C port for charging and data transfer, and features an in-display fingerprint sensor. It does not have a headphone jack.
• Build Materials and Dimensions: The Galaxy S9 features a glass front and back with an aluminum frame, weighing 163 grams and measuring 147.7 x 68.7 x 8.5 mm. The Galaxy S21 Plus 5G also has a glass front and back (Gorilla Glass Victus) with an aluminum frame, weighing 200 grams and measuring 161.5 x 75.6 x 7.8 mm, making it a larger and slightly heavier device. Both devices carry an IP68 rating for dust and water resistance.