Galaxy Z Fold4 vs iPhone 15

The Samsung Galaxy Z Fold4, released in August 2022, and the iPhone 15, launched in September 2023, represent distinct approaches to modern smartphone design. The Galaxy Z Fold4 offers a unique foldable form factor, transforming from a traditional smartphone into a larger tablet-like display, while the iPhone 15 maintains a conventional slate design with a focus on refined performance and camera capabilities. Both devices operate on different ecosystems, with the Z Fold4 running Android and the iPhone 15 powered by iOS.

The longevity of a smartphone is influenced by its release timeline, software support, and physical durability. These two devices offer different expectations in these areas.

• Software Support: The Galaxy Z Fold4, launched with Android 12L, is eligible for four major Android OS updates and five years of security updates, extending its support until around 2027. The iPhone 15, released with iOS 17, typically receives iOS updates for approximately five to six years from its launch date, potentially offering a slightly longer period of major OS updates.
• Physical Durability: The Galaxy Z Fold4 features an Armor Aluminum frame and Gorilla Glass Victus+ on its cover screen and back, with an IPX8 water resistance rating, meaning it can withstand submersion in water but lacks official dust resistance. Its foldable display incorporates a lighter, more durable design compared to its predecessor. The iPhone 15 is built with an aluminum frame, Ceramic Shield front, and a color-infused glass back, boasting an IP68 rating for both dust and water resistance, allowing submersion up to 6 meters for 30 minutes.
• Repairability: The iPhone 15 initially received a repairability score of 4 out of 10, which was later promoted to 7 out of 10, indicating improvements in ease of repair for certain components. Information regarding the specific repairability score for the Galaxy Z Fold4 is less widely available, though foldable devices generally present more complex repair challenges due to their intricate design.

Performance in both devices is designed to handle demanding tasks, though they achieve this through different hardware and software optimizations.

• Processing Power: The Galaxy Z Fold4 is equipped with a powerful processor that allows for smooth multitasking, efficient app switching, and capable handling of graphics-intensive applications and games. The iPhone 15 features a current-generation processor that delivers responsive performance for everyday use, demanding apps, and gaming, ensuring a fluid user experience.
• Multitasking and Responsiveness: With 12GB of RAM, the Galaxy Z Fold4 is well-suited for extensive multitasking, allowing users to run multiple applications simultaneously on its large internal display without significant slowdowns. The iPhone 15, with 6GB of RAM, provides efficient multitasking for typical smartphone usage, maintaining smooth transitions between apps and quick loading times.
• Storage Options: The Galaxy Z Fold4 offers storage capacities of 256GB, 512GB, and 1TB, providing ample space for files, apps, and media, without expandable storage. The iPhone 15 comes with 128GB, 256GB, and 512GB storage options, also without expandable storage.
• Battery Behavior: The Galaxy Z Fold4 houses a 4400 mAh battery, supporting fast wired charging at 25W and wireless charging at 15W. The iPhone 15 has a 3349 mAh battery, offering up to 20 hours of video playback and supporting wired and wireless charging. Apple has also indicated that the iPhone 15's battery is designed to retain 80% of its capacity after 1000 charge cycles, suggesting improved long-term battery health.

The display experience is a primary differentiator between these two devices, with the Galaxy Z Fold4 offering a unique adaptable screen and the iPhone 15 providing a high-quality traditional display.

• Display Technology and Clarity: The Galaxy Z Fold4 features two Dynamic AMOLED 2X displays: a 7.6-inch main foldable screen with a resolution of 2176 x 1812 pixels and a 6.2-inch cover screen with a resolution of 2316 x 904 pixels. Both offer vibrant colors and deep blacks. The iPhone 15 uses a 6.1-inch Super Retina XDR OLED display with a resolution of 2556 x 1179 pixels, providing excellent clarity and color accuracy.
• Brightness and Outdoor Visibility: The Galaxy Z Fold4's main display can reach a peak brightness of 1200 nits, offering good visibility in various lighting conditions. The iPhone 15's display has a typical brightness of up to 1000 nits and can reach a peak outdoor brightness of up to 2000 nits, making it highly visible even in direct sunlight.
• Refresh Rate and Smoothness: Both the main and cover displays on the Galaxy Z Fold4 feature an adaptive refresh rate of up to 120Hz, contributing to smooth scrolling and fluid animations. The iPhone 15 has a standard 60Hz refresh rate, which provides a consistent visual experience for most tasks.
• Screen Size and Viewing Experience: The Galaxy Z Fold4's large 7.6-inch internal display offers an expansive canvas for media consumption, productivity, and multitasking, akin to a small tablet. The iPhone 15's 6.1-inch display provides a comfortable viewing experience for single-handed use and general smartphone activities.

Both devices offer capable camera systems designed to capture high-quality photos and videos, though with different configurations and software enhancements.

• Rear Camera System: The Galaxy Z Fold4 features a triple-camera setup on the rear, including a 50MP wide-angle lens with optical image stabilization (OIS), a 12MP ultrawide lens, and a 10MP telephoto lens with 3x optical zoom. The iPhone 15 has an advanced dual-camera system, comprising a 48MP main camera with sensor-shift OIS and a 12MP ultrawide camera. The 48MP main sensor also enables a 2x telephoto option through sensor cropping.
• Photography Performance: The Galaxy Z Fold4's camera system is noted for its versatility, offering good performance in various lighting conditions, with the 50MP main sensor providing detailed images. The iPhone 15's 48MP main camera captures detailed photos, often outputting 24MP images by default, and benefits from computational photography features for improved low-light performance and dynamic range.
• Video Recording Capabilities: The Galaxy Z Fold4 can record video at up to 8K resolution at 24 frames per second (fps) and 4K at up to 60fps. The iPhone 15 supports 4K video recording at 24, 25, 30, or 60fps, and offers Cinematic mode for depth-of-field effects in 4K HDR at 30fps.
• Front-Facing Cameras: The Galaxy Z Fold4 includes a 10MP camera on its cover display and a 4MP under-display camera on its main internal screen, suitable for video calls and general selfies. The iPhone 15 features a 12MP front-facing camera with autofocus, designed for clear selfies and video calls.