Galaxy S21 Ultra 5G • Unlocked vs iPhone 16 Pro • Unlocked

The Samsung Galaxy S21 Ultra 5G, released in January 2021, and the Apple iPhone 16 Pro, launched in September 2024, represent different generations of flagship smartphones from their respective manufacturers. While both devices offer premium experiences, the iPhone 16 Pro introduces advancements in processing power, camera technology, and display features due to its more recent release. The Galaxy S21 Ultra 5G operates on Android, offering a customizable interface, while the iPhone 16 Pro runs on Apple's iOS, known for its integrated ecosystem.

When considering the long-term usability of these devices, their release timelines and software support policies are key factors.

• Release Timeline: The Galaxy S21 Ultra 5G was released in January 2021, making it an older device compared to the iPhone 16 Pro, which launched in September 2024. This age difference directly impacts their remaining support lifecycles.
• Software Longevity: Samsung typically provides four years of Android operating system updates and five years of security updates for its S-series flagships, meaning the Galaxy S21 Ultra 5G has likely received its final major Android update and is nearing the end of its security update period. Apple generally offers major iOS updates for approximately five to seven years and security updates for seven to eight years, suggesting the iPhone 16 Pro will continue to receive software support for a considerably longer duration, potentially until around 2036.
• Practical Lifespan: Users prioritizing the latest software features and security patches will find the iPhone 16 Pro offers a longer practical lifespan. For those considering an eco-friendly, quality-assured refurbished option, understanding these support timelines helps manage expectations for future software compatibility.

Performance is a core aspect of any smartphone, influencing how smoothly applications run and how efficiently tasks are handled.

• Processing Capabilities: The iPhone 16 Pro is equipped with a newer generation processor, which provides enhanced performance, particularly for demanding applications and AI-related tasks. The Galaxy S21 Ultra 5G, while powerful at its release, features an older generation processor that still handles everyday tasks and multitasking effectively.
• System Responsiveness: Users of the iPhone 16 Pro can expect a highly responsive experience, with faster app launches and smoother transitions, benefiting from its advanced chip architecture. The Galaxy S21 Ultra 5G offers a fluid experience for most users, though the difference in raw processing power may be noticeable in intensive gaming or complex video editing.
• Multitasking and Storage: Both devices offer ample storage options, with the iPhone 16 Pro providing configurations up to 1TB and the Galaxy S21 Ultra 5G up to 512GB. The iPhone 16 Pro comes with 8GB of memory, while the Galaxy S21 Ultra 5G was available with 12GB or 16GB of memory, which can contribute to efficient multitasking on both devices.
• Battery Behavior: The iPhone 16 Pro features a 3582 mAh battery, rated for up to 27 hours of video playback, with real-world usage often yielding 8-10 hours of screen time. The Galaxy S21 Ultra 5G includes a larger 5000 mAh battery, which generally provides a full day of use for most users, with some tests showing over 10 hours of screen-on time.

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

• Display Technology and Clarity: Both the Galaxy S21 Ultra 5G and the iPhone 16 Pro feature vibrant OLED displays, known for deep blacks and excellent contrast. The Galaxy S21 Ultra 5G has a 6.8-inch Dynamic AMOLED 2X display with a QHD+ resolution (3200x1440 pixels), resulting in a pixel density of 515 PPI. The iPhone 16 Pro features a 6.3-inch Super Retina XDR OLED display with a resolution of 2622x1206 pixels, offering a pixel density of 460 PPI.
• Brightness and Refresh Rate: Both phones support an adaptive 120Hz refresh rate, providing smooth scrolling and responsive visuals. The iPhone 16 Pro offers a typical brightness of 1000 nits and a peak brightness of 2000 nits for outdoor viewing, along with an Always-On display feature. The Galaxy S21 Ultra 5G reaches a peak brightness of 1500 nits.
• Viewing Experience: The slightly larger screen of the Galaxy S21 Ultra 5G may appeal to users who prefer more screen real estate for media consumption or productivity. The iPhone 16 Pro's display, with its higher peak brightness and Ceramic Shield protection, offers enhanced durability and visibility in bright conditions.

Both smartphones are equipped with advanced camera systems designed to capture high-quality photos and videos.

• Rear Camera Systems: The Galaxy S21 Ultra 5G features a versatile quad-camera setup, including a 108MP wide lens, a 12MP ultrawide lens, a 10MP telephoto lens with 3x optical zoom, and another 10MP telephoto lens with 10x optical zoom, offering significant zoom capabilities. The iPhone 16 Pro comes with a triple-camera system, featuring a 48MP wide lens, a 48MP ultrawide lens, and a 12MP 5x telephoto lens, along with a LiDAR scanner for improved depth sensing.
• Photography Performance: The Galaxy S21 Ultra 5G excels in capturing detailed images, especially with its high-resolution main sensor and impressive optical zoom range, including macro capabilities through its ultrawide lens. The iPhone 16 Pro offers upgraded wide and ultrawide cameras, with a focus on improved low-light performance and detailed macro shots. It also introduces a dedicated Camera Control button for quick access and adjustments.
• Video Recording and Audio: Both devices support 4K video recording at 60fps across multiple lenses. The Galaxy S21 Ultra 5G can record 8K video at 24fps and offers features like Director's View. The iPhone 16 Pro supports 4K Dolby Vision video recording up to 120fps, ProRes video recording, Spatial video, and includes improved audio recording features. Both phones feature stereo speakers for media consumption.