Galaxy S21+ 5G vs Galaxy Z Fold4

The Samsung Galaxy S21 Plus 5G, released in early 2021, and the Samsung Galaxy Z Fold4, launched in mid-2022, represent distinct approaches to smartphone design within the Android ecosystem. While the S21 Plus offers a traditional, premium smartphone experience, the Z Fold4 introduces a foldable form factor with a large internal display, fundamentally altering how users interact with their device. Both run on the Android operating system, but their core functionalities and target user experiences differ significantly.

The Galaxy S21 Plus 5G, released in January 2021, and the Galaxy Z Fold4, launched in August 2022, offer different durability profiles. The S21 Plus typically receives four major Android updates and five years of security patches, extending its software lifespan. Its construction includes Gorilla Glass Victus on both sides and an aluminum frame, providing robust protection and an IP68 rating for dust and water resistance.

The Galaxy Z Fold4 benefits from a longer software support window due to its later release, also receiving four major Android updates and five years of security updates. Its foldable design features an Armor Aluminum frame and Gorilla Glass Victus+ on the cover screen and back. The main foldable display uses Ultra Thin Glass, which requires careful handling. The Z Fold4 has an IPX8 water resistance rating but lacks official dust resistance, unlike the S21 Plus.

• Release timeline and age: The S21 Plus is an older model, while the Z Fold4's mid-2022 launch provides a longer expected period of software support.
• OS support duration and update frequency: Both receive four major Android OS updates and five years of security updates, but the Z Fold4's later release extends its support window further.
• Expected practical lifespan: The S21 Plus offers a traditional, durable build with comprehensive dust and water resistance, whereas the Z Fold4's innovative foldable design has specific considerations for its main display and hinge, with water resistance but no official dust resistance.

The Galaxy S21 Plus 5G and the Galaxy Z Fold4 offer distinct performance experiences. The S21 Plus, with its early 2021 processor, handles everyday applications and multitasking with smooth responsiveness. It is well-suited for general use, including browsing, social media, and moderate gaming. Its 8GB of RAM supports efficient app switching, and storage options typically range up to 256GB. The 4800 mAh battery generally provides sufficient power for a full day of typical use.

The Galaxy Z Fold4, featuring a more recent and powerful mid-2022 processor, delivers enhanced performance, particularly noticeable in demanding applications, intensive multitasking, and high-fidelity gaming. Its 12GB of RAM allows for seamless transitions between numerous open applications, making it highly capable for productivity and power users. Storage options extend up to 1TB. The 4400 mAh battery, while slightly smaller, is optimized to power the dual-screen setup, often providing a full day of use depending on screen usage patterns.

• Processor capabilities for everyday tasks: The S21 Plus provides smooth performance for daily tasks, while the Z Fold4 offers a more powerful processor for faster app loading and superior handling of intensive applications and multitasking.
• RAM implications for multitasking: The S21 Plus features 8GB of RAM, adequate for typical multitasking, whereas the Z Fold4's 12GB of RAM provides greater headroom for running many applications simultaneously.
• Battery behavior in typical use cases: The S21 Plus generally offers a full day of power with its 4800 mAh battery, while the Z Fold4's 4400 mAh battery is optimized for its dual-screen functionality, often providing similar daily endurance.

The screen quality is a primary differentiator between the Galaxy S21 Plus 5G and the Galaxy Z Fold4. The S21 Plus features a single 6.7-inch Dynamic AMOLED 2X display, offering vibrant colors, deep blacks, and excellent contrast. Its Full HD+ resolution ensures sharp text and clear images, and the adaptive 120Hz refresh rate provides smooth scrolling. With a peak brightness of up to 1300 nits, the display remains easily viewable outdoors.

The Galaxy Z Fold4 offers a dual-screen experience. The 6.2-inch Dynamic AMOLED 2X cover display functions as a traditional smartphone screen, also featuring an adaptive 120Hz refresh rate and high brightness. Unfolding the device reveals a larger 7.6-inch Foldable Dynamic AMOLED 2X main display, providing an expansive canvas for productivity and media. This main display also boasts an adaptive 120Hz refresh rate and a higher resolution. The foldable nature introduces a crease in the main display, generally subtle during use.

• Display technology with practical benefits: The S21 Plus offers a single, flat Dynamic AMOLED 2X display, while the Z Fold4 provides a versatile dual-screen setup with a conventional cover display and a large, foldable main display for an expansive viewing area.
• Resolution and clarity for typical viewing: The S21 Plus features a Full HD+ resolution on its 6.7-inch screen, delivering clear visuals, whereas the Z Fold4's main 7.6-inch display offers a higher resolution for greater detail, beneficial for multitasking.
• Screen size and viewing experience: The S21 Plus provides a generous 6.7-inch screen, while the Z Fold4's 7.6-inch main display, when unfolded, offers a tablet-like experience, significantly enhancing productivity and immersive media consumption.

The audio-visual capabilities of the Galaxy S21 Plus 5G and the Galaxy Z Fold4 cater to different user expectations. The S21 Plus features a versatile triple-camera setup on the rear: a 12 MP wide, a 12 MP ultrawide, and a 64 MP telephoto lens with 3x hybrid optical zoom. This configuration delivers consistent performance in various lighting conditions, producing detailed photos and capable video recording up to 8K. The 10 MP front camera is suitable for selfies and video calls. Its stereo speakers provide a balanced audio experience.

The Galaxy Z Fold4 upgrades its main camera system, featuring a 50 MP wide lens, a 12 MP ultrawide lens, and a 10 MP telephoto lens with 3x optical zoom. This setup generally offers improved low-light performance and greater detail in photos. Video recording also supports up to 8K resolution. The Z Fold4 includes a 10 MP front camera on the cover display and a 4 MP under-display camera on the main screen, which is less conspicuous but offers lower resolution for video calls. Its stereo speakers are also well-regarded for media consumption.

• Camera system capabilities: The S21 Plus offers a capable triple-camera system with a 64 MP telephoto lens for hybrid zoom, while the Z Fold4 features an upgraded 50 MP main sensor and a 10 MP telephoto lens with true 3x optical zoom, generally providing enhanced image quality.
• Low-light and everyday photography performance: Both devices perform well in good lighting, but the Z Fold4's newer camera hardware tends to deliver superior results in low-light environments, capturing more detail and reducing noise.
• Video recording quality and features: Both phones support up to 8K video recording, offering high-resolution capture, with the Z Fold4 potentially benefiting from its newer image processing for overall video quality.