Galaxy S24 Vs Galaxy S25 Ultra

The Samsung Galaxy S24, released in January 2024, and the Samsung Galaxy S25 Ultra, launched in February 2025, represent different tiers within Samsung's flagship smartphone offerings. While both devices operate on the Android platform with Samsung's One UI, the S25 Ultra distinguishes itself with a larger form factor, enhanced camera capabilities, and a more powerful internal architecture. The S24 offers a compact yet capable experience, whereas the S25 Ultra is designed for users seeking the most advanced features and a premium mobile experience.

When considering the longevity of these devices, both the Galaxy S24 and S25 Ultra are built to offer extended usability through robust software support and durable construction.

• Software Support: Both the Galaxy S24 and S25 Ultra are part of Samsung's commitment to providing seven years of major Android operating system upgrades and security updates. This policy ensures that both phones will remain current with the latest software features and security patches for an extended period. Due to its later release, the S25 Ultra will receive these updates for approximately one year longer than the S24.
• Build Materials: The Galaxy S24 features an Armor Aluminum frame and Corning Gorilla Glass Victus 2 on both the front and back, providing a strong and scratch-resistant surface. The Galaxy S25 Ultra elevates this with a titanium frame and Corning Gorilla Armor 2 on the front display, which offers enhanced durability, superior scratch resistance, and anti-reflective properties for better outdoor visibility. Both devices carry an IP68 rating for dust and water resistance.
• Expected Lifespan: With identical long-term software support, both models are designed for a practical lifespan that extends well beyond typical usage cycles, making them suitable for users who prefer to keep their devices for many years.

The performance of a smartphone is crucial for daily tasks, from basic browsing to demanding applications and gaming. Both the Galaxy S24 and S25 Ultra deliver responsive experiences, though the Ultra model offers a generational leap in processing power.

• Processing Power: The Galaxy S24 is equipped with a current-generation processor, which provides swift performance for everyday use, smooth multitasking, and efficient handling of various applications. The Galaxy S25 Ultra features a next-generation processor, specifically optimized for Galaxy devices, delivering a significant boost in capabilities. This translates to even smoother operation, faster app loading, and enhanced performance for intensive tasks like advanced gaming and on-device artificial intelligence features.
• Memory and Storage: The Galaxy S24 typically comes with 8GB or 12GB of RAM, alongside storage options of 128GB, 256GB, or 512GB. The Galaxy S25 Ultra generally offers 12GB of RAM, with some configurations potentially reaching 16GB, and storage options starting from 256GB, extending to 512GB, and up to 1TB. The increased RAM in the Ultra model supports more demanding multitasking scenarios, allowing more applications to run simultaneously without performance degradation.
• Battery Endurance: The Galaxy S24 houses a 4000 mAh battery, which typically provides a full day of use for most users, with screen-on times ranging from 4 to 6 hours under moderate usage. The Galaxy S25 Ultra, with its 5000 mAh battery, offers extended endurance, often surpassing its predecessor in real-world usage tests and providing impressive all-day battery life even for heavy users.

The visual experience is a key differentiator, with both devices offering vibrant displays, but the S25 Ultra provides a larger, more detailed canvas with additional enhancements.

• Display Technology and Size: Both smartphones feature Dynamic AMOLED 2X displays with LTPO technology, enabling adaptive refresh rates and HDR10+ support for rich, dynamic visuals. The Galaxy S24 has a 6.2-inch display, offering a compact viewing experience. The Galaxy S25 Ultra boasts a larger 6.9-inch display, providing a more expansive and immersive viewing area.
• Resolution and Brightness: The Galaxy S24 features an FHD+ resolution (1080 x 2340 pixels), delivering clear and sharp images for its size. It can reach a peak brightness of up to 2600 nits, ensuring good visibility in various lighting conditions. The Galaxy S25 Ultra offers a QHD+ resolution (1440 x 3120 pixels), resulting in a higher pixel density and greater clarity, particularly noticeable on its larger screen. While advertised with a similar peak brightness of 2600 nits, real-world testing has shown recorded peak brightness around 1860 nits, which is still excellent for outdoor use. The S25 Ultra also includes an anti-reflective coating, further enhancing outdoor visibility by reducing glare.
• Smoothness and Clarity: Both models offer an adaptive refresh rate ranging from 1Hz to 120Hz, ensuring smooth scrolling and fluid animations while optimizing power consumption. The S25 Ultra's larger display and higher resolution contribute to a more detailed and engaging visual experience, though some users have noted potential graininess at low brightness levels.

The camera systems on both devices are designed to capture high-quality images and videos, with the Galaxy S25 Ultra offering a more versatile and advanced setup, particularly in telephoto and ultrawide capabilities.

• Rear Camera Systems: The Galaxy S24 features a triple-camera setup, including a 50-megapixel wide-angle lens with optical image stabilization (OIS), a 12-megapixel ultrawide lens, and a 10-megapixel telephoto lens with 3x optical zoom. The Galaxy S25 Ultra boasts a quad-camera system, building on its predecessor with a 200-megapixel wide-angle lens (OIS), a significantly upgraded 50-megapixel ultrawide lens, a 10-megapixel telephoto lens with 3x optical zoom, and a 50-megapixel periscope telephoto lens offering 5x optical zoom.
• Photography Performance: The S24 provides an advanced camera setup capable of producing quality photos in various conditions. The S25 Ultra delivers excellent detail and color accuracy in daylight, with strong and clear zoom performance across its multiple telephoto lenses. Its night photography is also very capable, capturing bright colors and good detail with minimal noise. The upgraded ultrawide sensor on the S25 Ultra captures more detail and offers improved dynamic range.
• Video Recording and Audio: Both devices support 8K video recording at up to 30 frames per second. The S25 Ultra introduces improvements in night-time video capture and offers a new zoom slider for more controlled video recording. It also includes an 'Audio Eraser' tool to minimize background noise, and records video in 10-bit HDR by default for more natural colors and dynamic range. The microphone quality on the S25 Ultra is generally good, though it can pick up background noise in some environments.