Galaxy S21 5G • Unlocked vs Google Pixel 9 Pro XL • Unlocked

The Samsung Galaxy S21 5G, released in January 2021, and the Google Pixel 9 Pro XL, launched in August 2024, represent different generations of flagship smartphones. While both devices operate on the Android platform, the Pixel 9 Pro XL introduces significant advancements in processing power, camera technology, and software longevity due to its more recent release. This comparison will explore the practical differences between these two devices to help users understand which model best suits their needs.

The expected practical lifespan of a smartphone is heavily influenced by its release date and the manufacturer's commitment to software updates.

• Release Timeline: The Samsung Galaxy S21 5G was released in January 2021, making it an older device compared to the Google Pixel 9 Pro XL, which launched in August 2024. This age difference directly impacts the remaining support period for each phone.
• OS Support Duration: The Google Pixel 9 Pro XL launched with Android 15 and is guaranteed to receive seven years of operating system and security updates, extending its software support until Android 22. In contrast, the Samsung Galaxy S21 5G, which launched with Android 11, has likely received its final major Android OS update (Android 15) and is nearing the end of its security update cycle, typically around five years from its release.
• Repairability and Longevity: Both devices feature durable builds with Gorilla Glass protection on their displays. The Pixel 9 Pro XL utilizes Gorilla Glass Victus 2 on both its front and back, while the Galaxy S21 5G features Gorilla Glass Victus on the front and a plastic back. The newer components and extended software support of the Pixel 9 Pro XL suggest a longer period of optimal functionality and security.

Performance in smartphones is determined by the efficiency of their internal components, impacting everything from app loading to multitasking capabilities.

• Processing Capabilities: The Google Pixel 9 Pro XL features a newer generation processor, the Google Tensor G4, which is designed for enhanced AI performance and overall system efficiency. This allows for smoother handling of demanding applications, faster web browsing, and more responsive AI-driven features. The Samsung Galaxy S21 5G is powered by a processor that was top-tier at its release, providing capable performance for everyday tasks and gaming from 2021.
• Multitasking and Responsiveness: The Pixel 9 Pro XL typically comes with 16GB of RAM, offering substantial capacity for seamless multitasking and keeping numerous applications open without slowdowns. The Galaxy S21 5G includes 8GB of RAM, which is sufficient for most daily usage but may show limitations when handling a large number of concurrent demanding applications compared to the Pixel.
• Storage Options: Both devices offer various internal storage configurations, with the Galaxy S21 5G available in 128GB and 256GB options. The Pixel 9 Pro XL provides more extensive choices, ranging from 128GB up to 1TB, catering to users with larger storage needs. Neither device supports expandable storage via microSD cards.

The display is a primary interface for smartphone interaction, and both models offer distinct visual experiences.

• Display Technology and Clarity: Both the Galaxy S21 5G and the Pixel 9 Pro XL feature AMOLED display technology, known for vibrant colors and deep blacks. The Galaxy S21 5G has a 6.2-inch Dynamic AMOLED 2X display with a 1080 x 2400 pixel resolution (FHD+). The Pixel 9 Pro XL boasts a larger 6.8-inch LTPO OLED display with a higher 1344 x 2992 pixel resolution (QHD+), offering greater sharpness and detail.
• Brightness and Refresh Rate: The Pixel 9 Pro XL's display can reach a peak brightness of 3000 nits, providing excellent visibility even in bright outdoor conditions. Its adaptive refresh rate ranges from 1Hz to 120Hz, optimizing power consumption while ensuring smooth scrolling and responsiveness. The Galaxy S21 5G offers a 120Hz refresh rate and a peak brightness of 1300 nits, which is still bright and smooth for its generation.
• Screen Size and Viewing Experience: The larger 6.8-inch screen of the Pixel 9 Pro XL provides a more expansive viewing area, which can enhance media consumption and productivity tasks. The 6.2-inch display of the Galaxy S21 5G offers a more compact form factor, potentially favoring one-handed use and easier pocketability.

Both smartphones offer advanced camera systems, but with different strengths and capabilities.

• Rear Camera Systems: The Samsung Galaxy S21 5G features a versatile triple-camera setup with a 12MP wide-angle main lens, a 64MP telephoto lens with 3x hybrid zoom, and a 12MP ultrawide lens. The Google Pixel 9 Pro XL also has a triple rear camera system, but with higher megapixel counts: a 50MP main sensor, a 48MP ultrawide lens with macro focus, and a 48MP telephoto lens offering 5x optical zoom.
• Photography Features: The Pixel 9 Pro XL leverages Google's computational photography, offering features like Night Sight, Astrophotography, Portrait Mode, and advanced Pro Controls for manual adjustments. The Galaxy S21 5G also provides strong photography capabilities for its time, including a dedicated Night mode and various portrait effects.
• Video Recording and Front Camera: Both devices are capable of recording 8K video, with the Galaxy S21 5G at 24fps and the Pixel 9 Pro XL utilizing a cloud-based Video Boost feature for 8K. The Pixel 9 Pro XL's front camera is a 42MP sensor with autofocus, capable of 4K 60fps video, while the Galaxy S21 5G has a 10MP front camera.