Galaxy Z Flip4 • Unlocked vs iPhone 15 • Locked AT&T

The Samsung Galaxy Z Flip4, released in August 2022, and the iPhone 15, launched in September 2023, represent distinct approaches to modern smartphone design. The Z Flip4 offers a unique foldable form factor running on Android, while the iPhone 15 provides a traditional smartphone experience powered by iOS. These devices cater to different user preferences, with the Z Flip4 emphasizing portability and a novel design, and the iPhone 15 focusing on a refined, conventional smartphone experience with updated internal components and camera enhancements.

When considering the long-term usability of these devices, both the Galaxy Z Flip4 and the iPhone 15 offer substantial software support, though with some differences in their update policies and physical designs.

• Software Longevity: The Galaxy Z Flip4 was promised four major Android OS updates and five years of security updates from its release, meaning support is expected to continue until around 2027 for security patches. The iPhone 15, on the other hand, is guaranteed a minimum of five years of software support from its September 2023 launch, with Apple often extending support beyond this period, potentially until 2028 or later for major iOS updates.
• Physical Durability: The Z Flip4 features a foldable display protected by ultra-thin glass and an aluminum frame, along with Gorilla Glass Victus+ on its cover screen and back. It carries an IPX8 water resistance rating, meaning it can withstand submersion in water. The iPhone 15 boasts a Ceramic Shield front cover and a color-infused glass back with an aluminum frame, offering IP68 dust and water resistance, allowing for submersion up to 6 meters for 30 minutes. The foldable nature of the Z Flip4 introduces a hinge mechanism, which some users may perceive as a potential point of wear over time, though it is designed for durability.
• Repairability: While specific repairability scores can vary, both devices are designed with modern smartphone construction, which often involves specialized tools and expertise for repairs. The Z Flip4's folding mechanism adds a layer of complexity compared to the more traditional, rigid design of the iPhone 15.

The performance of a smartphone is crucial for daily tasks, from browsing to demanding applications. Both the Galaxy Z Flip4 and the iPhone 15 deliver capable performance, though they utilize different underlying architectures.

• System Responsiveness: The Galaxy Z Flip4 is equipped with a processor that provides snappy and responsive performance, capable of handling demanding applications and multitasking smoothly. The iPhone 15 features a current-generation processor known for its efficiency and power, ensuring a fluid user experience across various applications and tasks.
• Multitasking and Storage: Both devices offer multiple storage configurations, typically ranging from 128GB to 512GB, providing ample space for apps, photos, and videos. The Z Flip4 comes with 8GB of RAM, facilitating smooth transitions between multiple open applications. The iPhone 15 includes 6GB of RAM, which is optimized by its operating system for efficient multitasking.
• Battery Behavior: The Galaxy Z Flip4 has a 3700 mAh battery, and user experiences suggest it can last a full day for moderate users, though heavy usage might require more frequent charging. The iPhone 15 has a 3349 mAh battery, and reviews indicate it generally provides all-day power for typical usage, with some users reporting up to 5-8 hours of screen-on time.

The display is a primary interface for smartphone interaction, and both devices offer vibrant viewing experiences with distinct characteristics.

• Display Technology and Clarity: The Galaxy Z Flip4 features a 6.7-inch Foldable Dynamic AMOLED 2X main display with a resolution of 1080 x 2640 pixels, offering deep blacks and vibrant colors. It also has a 1.9-inch Super AMOLED cover screen for quick interactions. The iPhone 15 comes with a 6.1-inch Super Retina XDR OLED display with a resolution of 1179 x 2556 pixels, also providing excellent color reproduction and contrast.
• Refresh Rate and Smoothness: The Z Flip4's main display boasts a 120Hz variable refresh rate, contributing to smoother scrolling and more fluid animations. The iPhone 15 features a standard 60Hz refresh rate.
• Brightness and Outdoor Visibility: Both phones offer high peak brightness levels for good visibility in various lighting conditions. The iPhone 15 can reach up to 2000 nits peak brightness outdoors, making it highly visible even in direct sunlight.
• Unique Features: The Z Flip4's foldable design allows for a compact form factor when closed and offers unique usage modes, such as Flex Mode for hands-free viewing. The iPhone 15 incorporates the Dynamic Island, an interactive area around the front camera that displays alerts and live activities.

Both the Galaxy Z Flip4 and the iPhone 15 are equipped with capable camera systems designed to capture high-quality photos and videos in various scenarios.

• Rear Camera Systems: The Galaxy Z Flip4 features a dual-camera setup on the rear, consisting of two 12MP sensors (wide and ultrawide). It delivers images with good color, contrast, and detail, performing well in most lighting conditions, with improved low-light performance compared to its predecessor. The iPhone 15 sports an advanced dual-camera system with a 48MP main sensor and a 12MP ultrawide sensor. It captures detailed 24MP photos by default and offers 2x telephoto-like zoom using the main sensor.
• Low-Light and Everyday Photography: The Z Flip4's main camera performs competently in low-light situations, with software enhancements aiding in capturing brighter images. The iPhone 15 also excels in low-light photography, producing images with good detail and minimal noise, and offers an improved Night Mode.
• Video Recording: Both devices are capable of recording video at up to 4K resolution at 60 frames per second. The iPhone 15 includes features like Cinematic mode and HDR video recording with Dolby Vision.
• Front Camera and Audio: The Z Flip4 has a 10MP front camera, and its foldable design allows for using the higher-quality rear cameras for selfies via the cover screen. The iPhone 15 features a 12MP TrueDepth front camera with autofocus and various portrait features. Both phones offer stereo speakers for media consumption.