Galaxy S21 Ultra 5G Vs Galaxy Z Fold4

The Samsung Galaxy S21 Ultra 5G, released in January 2021, represents a traditional premium smartphone experience, offering a large, expansive display and a versatile camera system. In contrast, the Samsung Galaxy Z Fold4, launched in August 2022, introduces a unique foldable design, transforming from a compact smartphone into a tablet-like device. Both devices run on the Android operating system, but their distinct form factors cater to different user preferences and usage scenarios.

When considering the longevity of these devices, several factors come into play, including their release timelines, software support, and physical durability.

• Release Timeline: The Galaxy S21 Ultra 5G was released in January 2021, making it an older model compared to the Galaxy Z Fold4, which launched in August 2022. This difference in release date directly impacts their remaining software support.
• Software Support: Samsung typically provides four major Android OS updates and five years of security updates for its flagship devices. The Galaxy S21 Ultra 5G, having launched with Android 11, is expected to receive updates up to Android 15 and security patches until early 2026. The Galaxy Z Fold4, starting with Android 12L, is projected to receive OS updates up to Android 16 and security updates until August 2027, offering a longer period of official software support.
• Physical Durability: The Galaxy S21 Ultra 5G features Gorilla Glass Victus on both its front and back, along with an IP68 rating for dust and water resistance. The Galaxy Z Fold4 incorporates Gorilla Glass Victus+ on its cover screen and back, an Armor Aluminum frame, and an IPX8 water resistance rating, though it lacks an official dust resistance rating due to its folding mechanism. The inner foldable screen of the Z Fold4 uses Ultra Thin Glass (UTG) with a protective plastic layer, which, while robust for folding, is more susceptible to scratches than traditional glass displays.

Both devices are equipped with high-performance components designed to handle demanding applications and multitasking, though the Z Fold4 benefits from a newer generation of internal hardware.

• Processor Capabilities: The Galaxy S21 Ultra 5G features a powerful processor from its release year, enabling smooth operation for everyday tasks, gaming, and content creation. The Galaxy Z Fold4, being a later release, incorporates a more advanced processor, which provides enhanced efficiency and faster processing speeds, particularly noticeable in intensive applications and complex multitasking scenarios.
• Multitasking and Responsiveness: The Galaxy S21 Ultra 5G offers a responsive experience with 12GB or 16GB of RAM, allowing for efficient app switching and background processes. The Galaxy Z Fold4 also comes with 12GB of RAM, and its newer processor, combined with software optimizations for its foldable form factor, contributes to a highly fluid multitasking experience, especially when utilizing multiple apps on its larger internal display.
• Storage Options: The Galaxy S21 Ultra 5G is available with 128GB, 256GB, or 512GB of internal storage. The Galaxy Z Fold4 offers similar options, including 256GB, 512GB, and a 1TB variant, providing ample space for applications, media, and documents.

The display experience is a primary differentiator between these two devices, with the Z Fold4 offering a unique adaptable screen setup.

• Display Technology and Clarity: The Galaxy S21 Ultra 5G features a 6.8-inch Dynamic AMOLED 2X display with a QHD+ resolution (3200 x 1440 pixels), delivering sharp images and vibrant colors. The Galaxy Z Fold4 has two Dynamic AMOLED 2X displays: a 6.2-inch cover screen (2316 x 904 pixels) and a 7.6-inch foldable main screen (2176 x 1812 pixels). The main foldable screen offers a tablet-like viewing area when unfolded.
• Brightness and Refresh Rate: Both devices offer adaptive refresh rates up to 120Hz, ensuring smooth scrolling and fluid animations. The Galaxy S21 Ultra 5G can reach a peak brightness of 1500 nits, providing excellent visibility even in bright outdoor conditions. The Galaxy Z Fold4's main display reaches a peak brightness of 1200 nits, which is also suitable for outdoor use, though the cover screen has a slightly lower peak brightness.
• Viewing Experience: The S21 Ultra 5G provides a consistently high-quality, expansive single-screen experience. The Z Fold4 offers flexibility, allowing users to choose between a traditional smartphone experience on the cover screen or an immersive, larger display for productivity and media consumption when unfolded.

Both smartphones offer advanced camera systems, but they differ in their configurations and specific strengths.

• Rear Camera Systems: The Galaxy S21 Ultra 5G boasts a quad-camera setup, including a 108MP main sensor, a 12MP ultrawide, and two 10MP telephoto lenses offering 3x and 10x optical zoom, respectively. This configuration provides exceptional versatility, particularly for long-range zoom photography. The Galaxy Z Fold4 features a triple-camera system with a 50MP main sensor, a 12MP ultrawide, and a 10MP telephoto lens with 3x optical zoom. While the Z Fold4's main sensor is an upgrade over its predecessor, the S21 Ultra 5G retains an edge in telephoto capabilities.
• Photography Performance: The S21 Ultra 5G is known for its detailed images, especially from its 108MP main sensor, and its advanced zoom capabilities allow for clear shots at significant distances. The Z Fold4's camera system, which shares similarities with other flagship devices from its release year, delivers strong performance in various lighting conditions, with improvements in low-light photography compared to previous foldable models.
• Front Cameras and Video: The S21 Ultra 5G includes a 40MP front camera for high-resolution selfies. The Z Fold4 has a 10MP camera on its cover screen and a 4MP under-display camera on the main foldable screen, with the cover screen camera generally offering better quality for selfies. Both devices are capable of recording video at up to 8K resolution at 24fps.