Galaxy S21 FE 5G • Locked Verizon vs Galaxy S21 Ultra 5G • Unlocked

The Samsung Galaxy S21 FE 5G, released in January 2022, and the Samsung Galaxy S21 Ultra 5G, launched in January 2021, are both prominent smartphones from Samsung's Galaxy S series. While sharing the Android operating system and Samsung's One UI, these devices cater to slightly different user needs, primarily differing in their camera systems, display specifications, and overall build. The S21 Ultra offers a more advanced camera setup and a higher-resolution display, while the S21 FE provides a more streamlined experience in a slightly more compact form factor.

When considering the long-term usability of these devices, their release timelines and software support are key factors. The Galaxy S21 Ultra 5G, being released earlier, has a slightly shorter remaining software support window compared to the S21 FE 5G.

• Release Timeline: The Galaxy S21 Ultra 5G was introduced in January 2021, while the Galaxy S21 FE 5G followed a year later in January 2022. This difference in launch dates impacts their respective software support cycles.
• Software Longevity: The Galaxy S21 Ultra 5G received its final major Android operating system update, Android 15, in the first half of 2025, with security updates continuing until the first quarter of 2026. [15, 20, 23] In contrast, the Galaxy S21 FE 5G, which launched with Android 12, is expected to receive major OS updates up to Android 16, extending its software lifespan further into the future. [44]
• Durability Features: Both devices feature an IP68 rating for dust and water resistance, indicating protection against immersion in water. [1, 6, 17, 39] They also incorporate Gorilla Glass Victus for screen protection, offering a good level of resistance against drops and scratches. [6, 29, 39]

Both the Galaxy S21 FE 5G and the Galaxy S21 Ultra 5G are equipped with capable processors, delivering smooth performance for daily tasks, though differences emerge in their multitasking capabilities and battery endurance under various usage patterns.

• Processing Power: Both models utilize a current-generation processor, ensuring responsive performance for everyday applications, web browsing, and moderate gaming. [13] The S21 Ultra, however, often comes with more RAM options, ranging from 12GB to 16GB, compared to the S21 FE's 6GB or 8GB configurations. [13, 17, 37]
• Multitasking and Responsiveness: For users who frequently switch between many applications or engage in intensive multitasking, the higher RAM capacity of the Galaxy S21 Ultra may provide a slightly smoother experience, allowing more apps to remain active in memory without needing to reload. [13] Both devices offer a fluid user interface experience. [35]
• Battery Behavior: The Galaxy S21 Ultra 5G houses a larger 5,000 mAh battery, while the Galaxy S21 FE 5G features a 4,500 mAh battery. [13, 17, 32, 39] Despite the S21 Ultra's larger capacity, its higher-resolution display can consume more power. User experiences with the S21 Ultra's battery life are mixed, with some finding it sufficient for a full day and others noting it can be challenging to last through heavy use. [9, 11, 29] The S21 FE generally receives positive feedback for its battery life, with users reporting it can last through a full day of moderate use. [2, 4, 26, 33]

The display experience on these two Samsung Galaxy phones presents a clear distinction, with the S21 Ultra offering a more expansive and detailed visual canvas compared to the S21 FE's vibrant yet slightly more modest screen.

• Display Technology and Resolution: Both devices feature Dynamic AMOLED 2X displays with a 120Hz refresh rate, providing smooth scrolling and vibrant colors. [1, 3, 32, 33, 35] However, the Galaxy S21 Ultra 5G boasts a larger 6.8-inch display with a WQHD+ resolution (3200 x 1440 pixels) and a higher pixel density of 515 PPI. [1, 6, 11] The Galaxy S21 FE 5G has a 6.4-inch display with an FHD+ resolution (1080 x 2400 pixels) and a pixel density of around 403-411 PPI. [3, 32, 33]
• Brightness and Clarity: The S21 Ultra's higher resolution and pixel density contribute to a sharper and more detailed image, particularly noticeable when viewing high-resolution content or fine text. Both screens offer good outdoor visibility, with the S21 FE reaching around 700 nits of brightness. [32, 33]
• Viewing Experience: The larger screen of the S21 Ultra provides a more immersive viewing experience for media consumption and productivity, while the S21 FE offers a slightly more compact and manageable size for one-handed use. [13, 35]

The camera systems are a significant differentiating factor between these two models, with the Galaxy S21 Ultra 5G featuring a more comprehensive and versatile setup designed for advanced photography, while the S21 FE 5G offers a capable system for everyday shooting.

• Rear Camera Systems: The Galaxy S21 Ultra 5G is equipped with a quad-camera array, including a 108MP main sensor, a 12MP ultrawide lens, a 10MP telephoto lens with 3x optical zoom, and an additional 10MP periscope telephoto lens offering 10x optical zoom. [1, 6, 17, 28, 30] This allows for significant zoom capabilities and detailed shots. The Galaxy S21 FE 5G features a triple-camera setup with a 12MP main sensor, a 12MP ultrawide lens, and an 8MP telephoto lens with 3x optical zoom. [3, 13, 30, 37]
• Photography Performance: The S21 Ultra's 108MP main sensor and dual telephoto lenses provide greater flexibility for capturing distant subjects and offer more detail, especially in well-lit conditions. [28, 30] Both phones perform well in everyday photography, with the S21 Ultra generally offering more advanced features like improved low-light processing and a dedicated focus sensor. [18, 28]
• Video Recording and Front Camera: The S21 Ultra supports 8K video recording at 24fps and 4K at 30/60fps, along with a 40MP front-facing camera. [6, 18, 28, 30] It also includes a Director's View feature for multi-camera recording. The S21 FE records 4K video at 30/60fps and has a 32MP front camera. [30, 33, 37] Both offer good quality for selfies and video calls. [18, 41]