Galaxy S25 Ultra Vs Galaxy Z Fold4

The Samsung Galaxy S25 Ultra, released in early 2025, is a traditional flagship smartphone, while the Samsung Galaxy Z Fold4, launched in late 2022, is a foldable device. These two Android-based phones offer distinct user experiences, primarily differing in their form factor and the generational advancements in technology. Both run on the Android operating system, customized with Samsung's One UI, but cater to different preferences regarding display and overall design.

When considering the practical lifespan of these devices, their release timelines and software support policies are key factors.

• Release Timeline and Age: The Galaxy S25 Ultra was released in February 2025, making it a current-generation device. The Galaxy Z Fold4, released in August 2022, is now over three years old. This age difference significantly impacts their remaining software support and hardware relevance.
• OS Support Duration: The Galaxy S25 Ultra is promised seven years of Android OS and security updates, extending its software longevity well into the 2030s. In contrast, the Galaxy Z Fold4 was guaranteed four major Android OS updates and five years of security updates, meaning its major OS updates will conclude around Android 16, and security patches will end around August 2027.
• Repairability and Durability: The Galaxy S25 Ultra features a robust titanium frame and Corning Gorilla Armor 2 on its display and back, offering enhanced durability and scratch resistance. The Galaxy Z Fold4, while featuring an Armor Frame and Gorilla Glass Victus+ on its cover screen, has a more complex foldable display that inherently introduces different durability considerations, such as the internal screen's Ultra-Thin Glass and PET plastic layers. Both devices carry an IPX8 water resistance rating, but the Z Fold4 lacks official dust resistance.

The performance capabilities of these two devices reflect their respective release years, with the newer model offering significant advancements.

• Processor Capabilities: The Galaxy S25 Ultra is powered by a current-generation processor, specifically optimized for Galaxy devices, which allows it to handle demanding applications, intensive gaming, and advanced on-device AI tasks with smooth responsiveness. The Galaxy Z Fold4 features a processor that was top-tier at its 2022 release, providing capable performance for everyday multitasking and gaming, though it will not match the raw processing power or efficiency of the S25 Ultra's newer hardware.
• Multitasking and Responsiveness: Both devices offer 12GB of RAM, ensuring smooth transitions between applications. However, the S25 Ultra's more efficient processor contributes to overall system responsiveness and can manage more complex background processes and AI features without noticeable slowdowns.
• Storage Options: Both models offer ample storage configurations, typically starting from 256GB and going up to 1TB, providing sufficient space for applications, media, and files. The S25 Ultra utilizes UFS 4.0 storage, which offers faster read and write speeds compared to the UFS 3.1 found in the Z Fold4, potentially leading to quicker app loading and file transfers.

The display experience is a primary differentiator, with the Galaxy S25 Ultra offering a traditional premium panel and the Galaxy Z Fold4 providing a unique foldable interface.

• Display Technology and Size: The Galaxy S25 Ultra features a single, expansive 6.9-inch Dynamic LTPO AMOLED 2X display, known for its vibrant colors and deep blacks. The Galaxy Z Fold4 offers two Dynamic AMOLED 2X screens: a 6.2-inch cover display and a larger 7.6-inch foldable inner display. The foldable screen provides a tablet-like experience when unfolded, which is a key aspect of its design.
• Resolution and Brightness: The S25 Ultra's display boasts a QHD+ resolution (1440 x 3120 pixels) and can reach a peak brightness of up to 2600 nits, enhancing visibility in bright outdoor conditions. The Z Fold4's main display has a resolution of 2176 x 1812 pixels and a peak brightness of 1200 nits, while its cover screen is 2316 x 904 pixels. The S25 Ultra also includes an anti-reflective coating for improved outdoor viewing.
• Refresh Rate and Viewing Experience: Both devices offer a 120Hz adaptive refresh rate on their main displays, providing smooth scrolling and fluid animations. The Z Fold4's foldable screen has a visible crease, which some users may notice, while the S25 Ultra offers a seamless, uninterrupted viewing surface. The S25 Ultra also incorporates AI-powered ProScaler technology to enhance lower-resolution content to QHD+.

Camera capabilities are a strong point for both devices, though the S25 Ultra benefits from newer sensor technology and advanced features.

• Camera System Configuration: The Galaxy S25 Ultra features a versatile quad-camera setup on the rear, including a 200MP wide-angle lens, a 50MP ultrawide lens, a 10MP telephoto lens with 3x optical zoom, and a 50MP periscope telephoto lens with 5x optical zoom. The Galaxy Z Fold4 has a triple-camera system with a 50MP wide-angle lens, a 12MP ultrawide lens, and a 10MP telephoto lens with 3x optical zoom.
• Photography Performance: The S25 Ultra excels in detail capture, low-light performance, and zoom capabilities, offering a Quad Tele System for flexible optical zoom levels (2x, 3x, 5x, and 10x). Its 50MP ultrawide sensor also improves macro photography. The Z Fold4's camera system, while good for its release year, provides solid everyday photography but may not match the S25 Ultra's advanced zoom range or low-light processing.
• Video and Audio: Both devices support high-resolution video recording, with the S25 Ultra capable of 8K at 30fps and offering features like Dual Recording in 4K and video recording in log format for advanced users. The S25 Ultra also supports recording videos directly to external storage. Both phones provide stereo speakers, with the Z Fold4 featuring Dolby Atmos for an immersive audio experience.