Galaxy S21 5G Vs Galaxy S24 Ultra

The Samsung Galaxy S21 5G, released in early 2021, and the Samsung Galaxy S24 Ultra, launched in early 2024, represent different generations of Samsung's flagship smartphone offerings. While both devices operate on the Android platform with Samsung's One UI, the S24 Ultra introduces significant advancements in display technology, camera capabilities, and overall performance, reflecting three years of technological evolution.

The expected practical lifespan of a smartphone is influenced by its initial release date, the duration of software support, and physical durability.

• Release Timeline and Age: The Galaxy S21 5G was released in January 2021, making it a device from an earlier generation. The Galaxy S24 Ultra, launched in January 2024, benefits from being a much newer model.
• OS Support Duration: Samsung typically provides several years of Android operating system updates and security patches for its flagship devices. The Galaxy S21 5G, having launched with Android 11, has likely received its last major OS update, though security updates may continue for a period. In contrast, the Galaxy S24 Ultra launched with Android 14 and is promised an extended seven years of major OS and security updates, offering a considerably longer period of software longevity.
• Repairability: The Galaxy S24 Ultra has received high repairability scores, with many components being relatively easy to access and replace, though the display can be challenging to remove without damage. Information on the specific repairability score for the Galaxy S21 5G is less prominent, but generally, older flagships can present similar challenges with display removal.

Performance in smartphones is determined by the internal processing components, influencing how smoothly applications run, how quickly tasks are completed, and the device's overall responsiveness.

• Processor Capabilities: The Galaxy S21 5G is equipped with a powerful processor for its time, enabling smooth operation for everyday applications, multitasking, and mobile gaming. The Galaxy S24 Ultra features a significantly more advanced and efficient processor, designed to handle the most demanding applications, intensive gaming, and complex AI tasks with greater speed and responsiveness.
• RAM and Storage: The Galaxy S21 5G typically comes with 8GB of RAM, which is sufficient for most multitasking needs. Storage options include 128GB and 256GB, without expandable storage. The Galaxy S24 Ultra offers 12GB of RAM as standard, providing more headroom for heavy multitasking and future applications. It also provides larger storage options, including 256GB, 512GB, and 1TB, also without expandable storage.
• Battery Behavior: The Galaxy S21 5G houses a 4000 mAh battery, generally providing a full day of use for many users. The Galaxy S24 Ultra is equipped with a larger 5000 mAh battery, and user reports frequently highlight its excellent battery life, often lasting beyond a full day even with heavy usage.

The display is a primary interface for smartphone interaction, with various technologies and specifications contributing to the visual experience.

• Display Technology and Resolution: Both devices feature Dynamic AMOLED 2X displays, known for vibrant colors and deep blacks. The Galaxy S21 5G has a 6.2-inch display with a Full HD+ resolution (1080 x 2400 pixels). The Galaxy S24 Ultra boasts a larger 6.8-inch display with a Quad HD+ resolution (1440 x 3120 pixels), offering greater clarity and detail.
• Brightness and Refresh Rate: The S21 5G offers a peak brightness of 1300 nits and an adaptive refresh rate that ranges from 48Hz to 120Hz, providing smooth scrolling and good visibility in various lighting conditions. The S24 Ultra significantly enhances this with a peak brightness of 2600 nits, making it exceptionally visible even in direct sunlight, and an adaptive refresh rate that can scale from 1Hz to 120Hz for optimal power efficiency and smoothness. It also features an anti-glare coating for improved outdoor viewing.
• Protection: The Galaxy S21 5G's display is protected by Corning Gorilla Glass Victus. The Galaxy S24 Ultra features the newer Corning Gorilla Glass Armor, which offers enhanced scratch resistance and durability.

Camera systems are a key differentiator, with advancements impacting image quality, versatility, and video capabilities.

• Rear Camera System: The Galaxy S21 5G features a triple-camera setup with a 12MP wide lens, a 64MP telephoto lens with 3x hybrid optical zoom, and a 12MP ultrawide lens. The Galaxy S24 Ultra elevates this with a quad-camera system, including a 200MP wide sensor, a 12MP ultrawide, a 50MP periscope telephoto with 5x optical zoom, and an additional 10MP telephoto with 3x optical zoom, offering greater flexibility and zoom capabilities.
• Photography Performance: Both devices are capable of capturing high-quality images in good lighting. The S21 5G provides good detail and color, with its telephoto lens performing well for its generation. The S24 Ultra, with its higher resolution sensors and advanced processing, delivers exceptional clarity, dynamic range, and improved low-light performance. User reviews often praise its versatile camera system.
• Video Recording: Both phones support 8K video recording, with the S21 5G capable of 8K at 30fps and 4K at 60fps. The S24 Ultra offers 8K at 24/30fps and 4K at up to 120fps, providing more options for high-resolution and slow-motion video capture.
• Front Camera: The S21 5G has a 10MP front camera. The S24 Ultra features a 12MP front camera, offering slightly higher resolution for selfies and video calls.