Galaxy S21 5G vs Galaxy S21 FE 5G

The Samsung Galaxy S21 5G, released in January 2021, and the Samsung Galaxy S21 FE 5G, launched in January 2022, are both Android smartphones from Samsung's S21 series. While sharing a similar design language and core functionalities, the S21 FE arrived a year later with a slightly larger display and a different software update trajectory, aiming to offer a selection of popular features to a broader audience.

The expected lifespan of a smartphone is significantly influenced by its release date and the manufacturer's software support policy.

• Release Timeline: The Galaxy S21 5G was released 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 5G, having launched with Android 11, received its final major Android OS update (Android 15/One UI 7) in the first half of 2025, with security updates concluding in February 2026. In contrast, the Galaxy S21 FE 5G, which debuted with Android 12, is expected to receive major OS updates up to Android 16 (One UI 8) and continues to receive security patches, albeit moving from monthly to quarterly updates in late 2025. This means the S21 FE 5G offers a longer period of official software support.
• Repairability: Both devices demonstrate a reasonable level of repairability. The Galaxy S21 5G has a repairability score of around 7.5 to 7.75 out of 10, noted for its relatively easy disassembly, though the battery can be challenging to remove due to strong adhesive. The Galaxy S21 FE 5G shares a similar repairability score of 7.5 out of 10, benefiting from a plastic back that simplifies opening, but also features a tightly glued battery.

Both the Galaxy S21 5G and the Galaxy S21 FE 5G are equipped with capable internal components that handle daily tasks efficiently, though there are nuances in their real-world performance and battery endurance.

• Processing Power: Both models feature a high-performance processor from a similar generation, enabling smooth operation for demanding applications and multitasking. Users generally report good responsiveness for everyday use, but some have noted that both devices, particularly the S21 FE, can experience warming under sustained heavy loads like intensive gaming or prolonged 5G usage, which may lead to performance throttling.
• Multitasking and Storage: The Galaxy S21 5G typically comes with 8GB of RAM, while the S21 FE 5G is available in both 6GB and 8GB RAM configurations. For most users, 6GB of RAM is sufficient for smooth multitasking, but 8GB provides additional headroom for keeping more applications open simultaneously without slowdowns. Both devices offer 128GB or 256GB of internal storage, but neither includes a microSD card slot for expandable storage.
• Battery Behavior: The Galaxy S21 5G is powered by a 4000 mAh battery, with user feedback often describing its battery life as average, sometimes requiring a top-up during the day for heavy users. The Galaxy S21 FE 5G has a larger 4500 mAh battery. Despite the larger capacity, user experiences are mixed; some find it sufficient for a full day of moderate use, while others report that the 120Hz display and 5G connectivity can lead to faster drainage and necessitate more frequent charging.

Both the Galaxy S21 5G and S21 FE 5G offer vibrant and responsive displays, but they differ slightly in size and overall viewing experience.

• Display Technology and Clarity: Both devices feature a Dynamic AMOLED 2X display, known for producing deep blacks, high contrast, and vivid colors. They both offer a Full HD+ resolution (1080 x 2400 for S21, 1080 x 2340 for S21 FE), providing sharp and clear visuals for everyday content consumption.
• Size and Refresh Rate: The Galaxy S21 5G has a more compact 6.2-inch display, making it easier for one-handed use. The Galaxy S21 FE 5G features a slightly larger 6.4-inch display, which can enhance the viewing experience for media and gaming. Both screens support a 120Hz refresh rate, contributing to smoother scrolling and more fluid animations.
• Brightness and Durability: Both displays offer high brightness levels, with the S21 5G reaching up to 1300 nits peak brightness and the S21 FE 5G reaching 1200 nits, ensuring good visibility even in bright outdoor conditions. Both are protected by Corning Gorilla Glass Victus, offering enhanced resistance against scratches and drops.

The camera systems on both the Galaxy S21 5G and S21 FE 5G are designed to capture high-quality photos and videos, though they feature some differences in their sensor configurations.

• Rear Camera Setup: The Galaxy S21 5G is equipped with a versatile triple camera system, including a 12MP main wide-angle lens, a 12MP ultra-wide-angle lens, and a 64MP telephoto lens capable of 3x optical zoom. The Galaxy S21 FE 5G also features a triple camera array, comprising a 12MP main wide-angle lens, a 12MP ultra-wide-angle lens, and an 8MP telephoto lens with 3x optical zoom. Both setups are capable of producing detailed images in various lighting conditions.
• Photography Performance: Both devices deliver strong performance in everyday photography, with good color reproduction and dynamic range. Users have generally praised the camera quality of both models. Some users of the S21 FE have noted occasional inconsistencies in color profiles between its main and ultra-wide sensors. Both support 4K video recording at 60 frames per second.
• Front Camera and Audio: The Galaxy S21 5G features a 10MP front-facing camera, while the S21 FE 5G boasts a higher-resolution 32MP front camera, which can be beneficial for detailed selfies and video calls. Both phones offer stereo speakers for an immersive audio experience and good microphone quality for calls and recordings.