Galaxy Z Fold4 • Unlocked vs iPhone 15 • Unlocked

The Samsung Galaxy Z Fold4, released in August 2022, and the Apple iPhone 15, launched in September 2023, represent distinct approaches to modern smartphone design and functionality. The primary difference lies in their form factor: the Z Fold4 offers a unique foldable display that transforms from a traditional smartphone into a larger tablet-like experience, while the iPhone 15 maintains a classic slate design. Both devices operate on their respective advanced mobile operating systems, Android and iOS, offering diverse ecosystems and user interfaces.

When considering the long-term usability of these devices, several factors contribute to their expected practical lifespan.

• Release Timeline and Software Support: The Galaxy Z Fold4 was released in August 2022, while the iPhone 15 followed in September 2023. The Z Fold4 launched with Android 12L and is promised four major Android OS upgrades, extending support up to Android 16, along with five years of security updates until 2027. The iPhone 15 launched with iOS 17 and is compatible with iOS 18 and iOS 26, with Apple typically providing major software updates for at least five years, extending to at least 2028 for this model.
• Repairability: The iPhone 15 has an iFixit repairability score of 7 out of 10, indicating improved ease of repair compared to some previous iPhone models. The Galaxy Z Fold4, due to its complex foldable design, generally presents more challenges for repair, though specific repairability scores were not readily available.
• Durability Features: The iPhone 15 features a Ceramic Shield front and an IP68 rating for water and dust resistance, allowing submersion up to 6 meters for 30 minutes. The Galaxy Z Fold4 offers IPX8 water resistance, meaning it can withstand submersion in up to 1.5 meters of freshwater for 30 minutes, but it is not dust-resistant. Its cover screen is protected by Corning Gorilla Glass Victus+.

The performance of both devices is tailored to their respective ecosystems, offering smooth operation for a variety of tasks.

• Processor Capabilities: The Galaxy Z Fold4 is powered by a current-generation processor, enabling it to handle demanding applications and multitasking efficiently. The iPhone 15 features the A16 Bionic chip, which provides smooth performance for intensive apps and seamless multitasking.
• Multitasking and Responsiveness: The Z Fold4 comes with 12 GB of RAM, which supports its extensive multitasking capabilities, especially when utilizing its large internal display for multiple applications simultaneously. The iPhone 15 includes 6 GB of RAM, contributing to its responsive user experience and efficient handling of various applications.
• Battery Behavior: The Galaxy Z Fold4 is equipped with a 4400 mAh battery, generally providing a full day of moderate usage. It supports 25W wired fast charging and 15W wireless charging. The iPhone 15 has a 3349 mAh battery, offering up to 20 hours of video playback and 80 hours of audio playback. It supports 20W wired fast charging and 15W MagSafe wireless charging.

The display technologies in these smartphones offer distinct visual experiences, catering to different user preferences.

• Display Technology and Size: The Galaxy Z Fold4 features two Dynamic AMOLED 2X displays: a 7.6-inch foldable inner screen and a 6.2-inch external cover screen. The iPhone 15 utilizes a 6.1-inch Super Retina XDR OLED display. The Z Fold4's larger, foldable screen provides an expansive canvas for media consumption and productivity, while the iPhone 15 offers a vibrant, compact viewing area.
• Resolution and Clarity: The Z Fold4's inner display has a resolution of 2176 x 1812 pixels (373 ppi), and its cover screen is 2316 x 904 pixels (401 ppi). The iPhone 15 features a resolution of 2556 x 1179 pixels at 460 ppi, delivering sharp and clear visuals.
• Brightness and Refresh Rate: Both Z Fold4 displays offer an adaptive refresh rate of up to 120 Hz, providing smooth scrolling and fluid animations. The inner display reaches a peak brightness of 1200 nits, and the cover screen reaches 1000 nits. The iPhone 15 has a 60 Hz refresh rate, with a typical brightness of 1000 nits and a peak outdoor brightness of 2000 nits, ensuring good visibility in bright conditions. The iPhone 15 also incorporates the Dynamic Island feature.

Both devices offer advanced camera systems designed to capture high-quality images and videos, though with different configurations.

• Rear Camera Systems: The Galaxy Z Fold4 features a triple rear camera setup, including a 50 MP wide-angle lens with optical image stabilization (OIS), a 12 MP ultrawide lens, and a 10 MP telephoto lens with 3x optical zoom and OIS. The iPhone 15 has an advanced dual-camera system, comprising a 48 MP main camera with sensor-shift OIS and a 2x telephoto crop option, alongside a 12 MP ultrawide camera.
• Photography Performance: The Z Fold4's main camera is praised for capturing detailed and vibrant photos, with improvements in low-light performance over its predecessor. The iPhone 15's 48 MP main sensor produces sharp 24 MP photos by default, with enhanced detail and improved low-light capabilities.
• Video Recording and Front Cameras: The Z Fold4 supports video recording up to 8K at 24fps and 4K at 60fps. It has a 10 MP camera on the cover display and a 4 MP under-display camera on the main screen. The iPhone 15 records 4K video at 60fps and includes Cinematic mode and Action mode. Its front-facing TrueDepth camera is 12 MP with autofocus.