Galaxy S21 5G • Unlocked vs iPhone XS • Unlocked

The Samsung Galaxy S21 5G, released in January 2021, and the Apple iPhone Xs, launched in September 2018, represent different generations and operating systems within the smartphone market. While both offer a premium mobile experience, key distinctions lie in their software ecosystems, camera capabilities, and display technologies, reflecting the advancements made over their respective release timelines.

When considering the longevity of these devices, their release dates and subsequent software support are important factors.

• Release Timeline and Software Support: The Galaxy S21 5G, released in January 2021, launched with Android 11 and has received major operating system updates up to Android 15, reaching its end of life for new Android versions as of April 2025. It will continue to receive security patches. The iPhone Xs, released in September 2018, launched with iOS 12 and has been updated to iOS 17. As of 2026, it is also at the later stages of its major iOS update cycle.
• Build Materials and Durability: The Galaxy S21 5G features a Gorilla Glass Victus front, a plastic back, and an aluminum frame, offering a balance of durability and a lighter feel. The iPhone Xs utilizes glass on both the front and back, encased in a stainless steel frame, providing a more substantial and premium feel. Both devices carry an IP68 rating for water and dust resistance, indicating protection against submersion.
• Practical Lifespan: Given its more recent release and newer hardware, the Galaxy S21 5G generally offers a longer practical lifespan for users seeking the latest software features and performance. The iPhone Xs, while still functional, is nearing the end of its major software update cycle, which may impact its compatibility with future applications.

The performance of a smartphone dictates its responsiveness and ability to handle various tasks, from everyday browsing to demanding applications.

• Processing Power and Responsiveness: The Galaxy S21 5G, being a newer device, features a more advanced processor that delivers smoother performance for intensive applications, complex multitasking, and graphic-heavy gaming. The iPhone Xs, while still capable for daily use and many applications, may exhibit some slowdown when running the most demanding software or handling extensive multitasking compared to more recent devices.
• Multitasking and Storage: The Galaxy S21 5G typically comes with 8GB of RAM, allowing for more applications to run simultaneously without significant performance degradation. The iPhone Xs has 4GB of RAM, which is sufficient for many users but offers less headroom for heavy multitasking. For storage, the Galaxy S21 5G is available with 128GB or 256GB, while the iPhone Xs offered options including 64GB, 256GB, and 512GB.
• Battery Performance: The Galaxy S21 5G is equipped with a 4000 mAh battery, generally providing a full day of use for many users. The iPhone Xs has a smaller 2658 mAh battery, which may require more frequent charging, especially for heavy users.

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

• Display Technology and Clarity: Both the Galaxy S21 5G and the iPhone Xs feature OLED display technology, known for producing vibrant colors, high contrast, and deep blacks. The Galaxy S21 5G has a 6.2-inch Dynamic AMOLED 2X display with a resolution of 1080 x 2400 pixels. The iPhone Xs has a 5.8-inch Super Retina OLED display with a resolution of 1125 x 2436 pixels. Both provide sharp and clear visuals for typical viewing distances.
• Refresh Rate and Smoothness: A notable difference is the refresh rate; the Galaxy S21 5G offers an adaptive 120Hz refresh rate, which results in noticeably smoother scrolling, animations, and a more fluid overall user experience. The iPhone Xs features a standard 60Hz refresh rate.
• Brightness and Viewing Experience: Both displays offer good brightness levels for visibility in various lighting conditions, including outdoors. The Galaxy S21 5G boasts a higher peak brightness, which can be beneficial in direct sunlight. The slightly larger screen of the Galaxy S21 5G may offer a more expansive viewing experience for media consumption.

For many users, the camera system is a crucial aspect of a smartphone, and these two models offer different photographic capabilities.

• Rear Camera Systems: The Galaxy S21 5G features a versatile triple-lens rear camera setup, including a 12MP wide-angle lens, a 64MP telephoto lens with 3x hybrid optical zoom, and a 12MP ultrawide lens. This configuration provides flexibility for various shooting scenarios. The iPhone Xs has a dual-lens rear camera system, comprising a 12MP wide-angle lens and a 12MP telephoto lens with 2x optical zoom.
• Photography Features and Performance: The Galaxy S21 5G benefits from newer image processing algorithms and includes features like a dedicated Night Mode and Director's View for video. It can capture detailed photos in various lighting conditions. The iPhone Xs delivers strong everyday photography with good color accuracy and detail, but it lacks a dedicated night mode, which can impact low-light performance compared to newer devices.
• Video Recording and Audio: The Galaxy S21 5G supports video recording up to 8K resolution at 24fps, along with 4K at 30/60fps. The iPhone Xs records video at up to 4K resolution at 24/30/60fps. Both devices offer good microphone quality for calls and recordings, and their stereo speakers provide a capable audio experience for media playback.