Galaxy S21 5G vs Google Pixel 9

The Samsung Galaxy S21 5G, released in January 2021, and the Google Pixel 9, launched in August 2024, represent different generations of flagship smartphones. While both devices offer a premium Android experience, the Pixel 9 introduces advancements in software longevity, display technology, and camera capabilities, reflecting its more recent release. Both operate on the Android platform, but the Pixel 9 benefits from a significantly extended software support timeline.

The practical lifespan of a smartphone is heavily influenced by its release timeline and the duration of software support it receives.

• Release Timeline: The Galaxy S21 5G was released in January 2021, making it an older device compared to the Google Pixel 9, which launched in August 2024. This age difference directly impacts their remaining support cycles.
• OS Support Duration: The Galaxy S21 5G typically received four major Android OS updates, with security updates extending for five years from its release, concluding around January 2026. In contrast, the Google Pixel 9 is guaranteed seven years of OS and security updates, extending its support until at least August 2031. This provides the Pixel 9 with a considerably longer period of official software maintenance and new feature rollouts.
• Repairability: The Galaxy S21 5G received a repairability score of 4 out of 10 from iFixit, noting challenges with its glued battery and display, though it was considered an improvement over its predecessor. While a specific iFixit score for the Pixel 9 is not widely available, Google's recent Pixel devices generally aim for moderate repairability. Users seeking to extend the life of their device through repairs might find both models present some challenges, but parts availability for newer devices like the Pixel 9 is typically more robust.

Performance in daily use is a key factor for smartphone users, encompassing how smoothly applications run, the speed of multitasking, and overall system responsiveness.

• Processor Capabilities: The Galaxy S21 5G handles everyday tasks and moderate gaming with efficiency, providing a responsive user experience for most applications. The Google Pixel 9, being a newer device, features a more advanced processor designed for enhanced efficiency and the demands of modern applications, including advanced on-device artificial intelligence features. This translates to smoother performance, quicker app loading times, and more seamless multitasking, particularly with demanding software.
• RAM Implications: The Galaxy S21 5G comes with 8GB of RAM, which is sufficient for typical multitasking and application usage. The Google Pixel 9 typically offers 12GB of RAM, providing more headroom for running multiple applications simultaneously and handling memory-intensive tasks without slowdowns.
• Battery Behavior: The Galaxy S21 5G is equipped with a 4000 mAh battery, with user experiences often indicating that heavy users may require more frequent charging to last a full day. The Google Pixel 9 features a larger 4700 mAh battery, and user reports suggest improved battery longevity, often lasting a full day or more for moderate usage patterns.

The display is a primary interface for smartphone interaction, and differences in technology, resolution, and brightness can significantly impact the viewing experience.

• Display Technology and Clarity: Both devices feature OLED display technology, known for deep blacks and vibrant colors. The Galaxy S21 5G has a 6.2-inch Dynamic AMOLED 2X display with a resolution of 1080 x 2400 pixels. The Google Pixel 9 features a 6.3-inch Actua OLED display with a resolution of 1080 x 2424 pixels, offering comparable clarity for typical viewing.
• Brightness Levels: The Galaxy S21 5G can reach a peak brightness of 1300 nits, providing good visibility in various lighting conditions. The Google Pixel 9 significantly surpasses this with an HDR brightness of up to 1800 nits and a peak brightness of up to 2700 nits, making it exceptionally bright and highly legible even in direct sunlight.
• Refresh Rate and Smoothness: Both smartphones offer an adaptive 120Hz refresh rate, which contributes to smooth scrolling and a fluid user interface. This dynamic adjustment helps optimize power consumption while providing a responsive visual experience.

Camera systems are a crucial aspect of modern smartphones, with capabilities varying across different models in terms of hardware and computational photography.

• Camera System Configuration: The Galaxy S21 5G features a versatile triple-camera setup on the rear, including a 12MP wide-angle lens, a 12MP ultrawide lens, and a 64MP telephoto lens capable of 3x hybrid optical zoom. The Google Pixel 9 employs a dual-camera system, typically consisting of a 50MP main camera with optical image stabilization and an ultrawide lens.
• Photography Performance: The Galaxy S21 5G delivers good results in various conditions, with its telephoto lens offering flexibility for zoomed shots. User feedback indicates generally good camera performance, though some noted the ultrawide camera could produce noisy photos. The Google Pixel 9 is highly regarded for its computational photography, excelling in producing detailed images with natural colors and strong dynamic range. It particularly stands out in low-light conditions, where its Night Sight mode can capture impressive detail and color accuracy.
• Video Recording and Audio: Both devices are capable of high-resolution video recording. The Galaxy S21 5G can record up to 8K video. The Pixel 9 also offers robust video capabilities, with both front and rear cameras capable of shooting 4K videos at 60 frames per second. For audio, both provide a good media consumption experience through their speakers, and microphone quality is generally suitable for calls and recordings.