Galaxy S23 Ultra • Unlocked vs Galaxy Z Flip4 • Unlocked

The Samsung Galaxy S23 Ultra, released in February 2023, and the Samsung Galaxy Z Flip4, launched in August 2022, represent distinct approaches to modern smartphone design. While the S23 Ultra offers a traditional, expansive flagship experience with advanced camera capabilities and an integrated stylus, the Z Flip4 introduces a compact, foldable form factor that prioritizes portability and unique interaction methods. Both devices operate on the Android platform, offering a consistent software experience with Samsung's One UI.

The expected practical lifespan of a smartphone is influenced by its build quality, software support, and the longevity of its components. Both the Galaxy S23 Ultra and the Galaxy Z Flip4 benefit from Samsung's commitment to extended software support, ensuring they remain functional and secure for several years.

• Software Updates: The Galaxy S23 Ultra, released with Android 13, is eligible for four major Android OS updates and five years of security patches, extending its software relevance well into the future. The Galaxy Z Flip4, launched with Android 12L, also receives four major Android OS updates and five years of security updates, meaning it is supported up to Android 16 and security patches until 2027.
• Physical Durability: The S23 Ultra features an Armor Aluminum Frame and Corning Gorilla Glass Victus 2 on both its front and back, providing robust protection against drops and scratches, along with an IP68 rating for dust and water resistance. The Z Flip4 also uses an Armor Aluminum Frame and Gorilla Glass Victus+ on its cover screen, offering IPX8 water resistance, though it lacks official dust resistance due to its foldable design.
• Repairability: While specific repairability scores can vary, the S23 Ultra's traditional design generally allows for more straightforward component replacement compared to the complex internal structure of a foldable device like the Z Flip4. The folding mechanism of the Z Flip4 introduces additional points of potential wear over time.

Performance in both devices is designed to handle daily tasks efficiently, though their underlying hardware and resulting capabilities differ, catering to varying user demands.

• Processing Power: The Galaxy S23 Ultra is equipped with a more recent and powerful processor, enabling it to handle highly demanding applications, intensive multitasking, and graphics-heavy gaming with exceptional smoothness and responsiveness. The Galaxy Z Flip4, while still offering strong performance for everyday use and most applications, features a slightly older generation processor that capably manages general smartphone tasks and moderate gaming.
• Multitasking and Storage: The S23 Ultra offers configurations with up to 12GB of RAM, providing ample headroom for extensive multitasking and keeping numerous applications open in the background without slowdowns. It also provides faster UFS 4.0 storage options for quicker app loading and data transfer. The Z Flip4 comes with 8GB of RAM, which is sufficient for smooth multitasking in typical usage scenarios, and its storage options utilize UFS 3.1 technology.
• Battery Behavior: The S23 Ultra houses a larger 5000mAh battery, which, combined with its efficient processor, allows for extended usage, often lasting up to two days with moderate use and providing significant screen-on time. The Z Flip4 has a 3700mAh battery, designed to provide a full day of use for most users, with reported figures of up to 19 hours of video streaming or 16 hours of Wi-Fi/LTE usage.

The display experience is a primary differentiator between these two devices, with the S23 Ultra offering a large, uninterrupted canvas and the Z Flip4 providing a unique foldable main screen alongside a functional cover display.

• Main Display Technology and Size: The Galaxy S23 Ultra features a large 6.8-inch Dynamic AMOLED 2X display with a Quad HD+ resolution (3088 x 1440 pixels), offering exceptional clarity and detail. The Galaxy Z Flip4's main screen is a 6.7-inch Foldable Dynamic AMOLED 2X display with a Full HD+ resolution (2640 x 1080 pixels), providing a vibrant and smooth viewing experience when unfolded.
• Brightness and Refresh Rate: Both devices offer a smooth visual experience with adaptive refresh rates that can scale from 1Hz to 120Hz, optimizing for both fluidity and power efficiency. The S23 Ultra boasts a peak brightness of 1750 nits, ensuring excellent visibility even in bright outdoor conditions. The Z Flip4's main display reaches a peak brightness of 1200 nits, which is also bright enough for comfortable outdoor viewing.
• Unique Display Features: The S23 Ultra's display is a traditional flat panel, offering a consistent and expansive viewing area. The Z Flip4's main display folds in half, allowing for a highly compact form factor. It also includes a 1.9-inch Super AMOLED cover screen that displays notifications, widgets, and can act as a viewfinder for quick photos.

Both smartphones offer capable camera systems, but they are designed with different priorities, impacting their photographic and videographic strengths.

• Rear Camera System: The Galaxy S23 Ultra features a versatile quad-camera setup, highlighted by a 200MP main sensor that captures highly detailed images, a 12MP ultrawide lens, and two 10MP telephoto lenses offering 3x and 10x optical zoom for impressive long-range photography. The Galaxy Z Flip4 has a dual-camera system on the rear, consisting of a 12MP wide-angle camera with optical image stabilization and a 12MP ultrawide camera, suitable for everyday photos and wider landscape shots.
• Low-Light and Video Performance: The S23 Ultra's larger main sensor and advanced processing contribute to superior low-light performance, capturing brighter and more detailed images in challenging conditions. It also supports 8K video recording, providing high-resolution footage. The Z Flip4 offers good low-light performance for its class and records video at up to 4K resolution, suitable for most users' needs.
• Front Camera and Unique Features: The S23 Ultra includes a 12MP front camera capable of capturing detailed selfies and supporting 4K video recording. The Z Flip4 features a 10MP front camera. Its foldable design allows for unique shooting angles, such as using the main cameras for high-quality selfies via the cover screen or utilizing 'Flex Mode' for hands-free video calls and content creation.