Galaxy S25 Ultra • Unlocked vs Galaxy Z Fold5 • Unlocked

The Samsung Galaxy S25 Ultra, released in February 2025, represents the latest iteration of Samsung's traditional flagship smartphone line. In contrast, the Samsung Galaxy Z Fold5, launched in August 2023, offers a unique foldable design that transforms a compact smartphone into a larger tablet-like experience. While both devices operate on the Android platform, they cater to different user preferences through their distinct form factors and feature sets. The S25 Ultra focuses on delivering a premium, uncompromised smartphone experience, whereas the Z Fold5 prioritizes versatility and a larger screen for productivity and media consumption.

When considering the long-term usability of these devices, their release timelines and software support policies are key factors. The Galaxy S25 Ultra, being a newer device, benefits from an extended support period compared to the Z Fold5.

• Software Longevity: The Galaxy S25 Ultra is guaranteed to receive seven years of Android OS upgrades and security updates, launching with Android 15 and expected to be supported through Android 22. This commitment ensures a prolonged period of up-to-date features and security. The Galaxy Z Fold5, released earlier, typically falls under Samsung's previous policy of four major Android updates and five years of security patches, meaning its software support will conclude sooner.
• Physical Durability: The S25 Ultra features Corning Gorilla Armor 2 for its display and a titanium frame, offering robust protection against daily wear and tear. While some tests suggest its screen might scratch more easily than its predecessor, it could also be less prone to shattering. The Z Fold5 introduces a refined Flex Hinge that allows the device to close without a gap, enhancing its protection against dust and debris. Its hinge is rated for 200,000 folds, suggesting a practical lifespan of approximately five years with regular use. Both devices carry an IPX8 water resistance rating, providing protection against immersion in water.
• Expected Lifespan: Users prioritizing the longest possible software support and cutting-edge durability features will find the S25 Ultra more aligned with their needs. The Z Fold5, while durable for a foldable, has a slightly shorter expected software lifespan and its unique folding mechanism introduces different considerations for long-term physical integrity.

The performance of both devices is designed to handle demanding tasks, though they achieve this with different underlying hardware and battery optimizations.

• Processing Power: The Galaxy S25 Ultra is equipped with a current-generation octa-core processor, enabling lightning-fast performance and seamless multitasking. This allows for smooth operation of intensive applications and graphics-heavy games. The Galaxy Z Fold5 utilizes a powerful octa-core processor from the previous generation, which still delivers strong performance for everyday use, multitasking across its multiple screens, and gaming.
• Memory and Storage: Both devices offer ample memory, with the S25 Ultra providing options for 12GB or 16GB of RAM, and the Z Fold5 featuring 12GB of RAM. This ensures efficient multitasking and app management. Storage options for both include 256GB, 512GB, and 1TB, catering to users with extensive digital content.
• Battery Performance: The S25 Ultra houses a 5000mAh battery, providing impressive endurance, with tests showing over 17 hours of continuous use and real-world usage often exceeding a full day. It supports 45W wired and 25W wireless charging. The Z Fold5, with its 4400mAh battery, offers a respectable battery life for a foldable, often lasting a full day of moderate use or around 10-11 hours of heavy usage, partly due to software optimizations. It supports 25W wired and 15W wireless charging.

The display experience is a primary differentiator between these two devices, offering distinct visual environments for users.

• Display Technology and Size: The Galaxy S25 Ultra features a large 6.9-inch Dynamic LTPO AMOLED 2X display, providing a traditional, expansive smartphone screen. The Galaxy Z Fold5 offers a dual-screen setup: a 6.2-inch Dynamic AMOLED cover screen and a larger 7.6-inch Foldable Dynamic AMOLED 2X main inner display. This allows for a compact phone experience that unfolds into a tablet-sized canvas.
• Resolution and Clarity: The S25 Ultra boasts a QHD+ resolution (3120x1440 pixels), delivering sharp and detailed visuals. The Z Fold5's main display has a resolution of 2176x1812 pixels, offering a clear and immersive viewing experience when unfolded. Its cover screen provides a resolution of 904x2316 pixels.
• Brightness and Smoothness: Both devices feature a 120Hz refresh rate on their main displays, ensuring smooth scrolling and responsive interactions. The S25 Ultra can reach a peak brightness of up to 2600 nits, making it highly visible even in bright outdoor conditions, and includes an anti-reflective coating. The Z Fold5's main display also offers high brightness, up to 1750 nits, suitable for outdoor use. The S25 Ultra also includes ProScaler technology, which enhances lower-resolution content for its high-resolution display.

Both smartphones offer advanced camera systems, but they are optimized for different photographic priorities and user experiences.

• Rear Camera Systems: The Galaxy S25 Ultra features a versatile quad-camera setup, including a high-resolution 200MP main sensor, a 50MP ultrawide lens, a 50MP telephoto lens with 5x optical zoom, and a 10MP telephoto lens with 3x optical zoom. This configuration excels in capturing detailed images across various focal lengths. The Galaxy Z Fold5 comes with a triple-camera system, comprising a 50MP main sensor, a 12MP ultrawide lens, and a 10MP telephoto lens with 3x optical zoom.
• Photography Performance: The S25 Ultra delivers excellent detail and natural colors in daylight, with strong zoom capabilities and very good low-light performance. While some users note occasional over-processing, its overall camera system is highly capable. The Z Fold5 produces good color reproduction and detail in well-lit conditions, and its main camera performs well in low light. However, its ultrawide camera lacks autofocus, and it may struggle with capturing fast-moving subjects.
• Video and Selfie Capabilities: Both devices are capable of recording video at up to 8K resolution at 30 frames per second. For selfies, the S25 Ultra has a 12MP front-facing camera with autofocus. The Z Fold5 features a 10MP camera on its cover screen and a 4MP under-display camera on its main screen, with the under-display camera offering lower quality, primarily suited for video calls.