Galaxy S21 5G Vs Galaxy S23 FE

Galaxy S21 5G
Galaxy S21 5G
Starting at

Refurbished price:£128.00

Versus £829.00 new

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Galaxy S23 FE
Galaxy S23 FE
Starting at

Refurbished price:£175.00

Versus £605.75 new

See options

Ratings

The Samsung Galaxy S21 5G, launched in early 2021, and the Samsung Galaxy S23 FE, released in late 2023, represent two distinct eras of Samsung's mobile engineering. While the Galaxy S21 5G was the primary flagship of its generation, the Galaxy S23 FE serves as a modern bridge, incorporating updated technology into a more accessible framework. Both smartphones operate on the Android ecosystem using Samsung's custom interface, ensuring a consistent software experience across both models despite their different release timelines.

The primary differences between these two devices lie in their physical dimensions, the longevity of their software support, and the evolution of their internal camera sensors. The Galaxy S21 5G offers a more compact and lightweight design, whereas the Galaxy S23 FE provides a larger display and a more recent hardware architecture. This comparison explores how these technical variations translate into daily usage for different types of smartphone users.

Scores

Durability

When evaluating the long-term viability of these devices, the release dates play a significant role in determining how long each will receive official software updates and security patches from the manufacturer.

  • Software Support Timeline: The Galaxy S23 FE, being a much newer release from 2023, is scheduled to receive Android version updates and security maintenance for several years longer than the Galaxy S21 5G. This makes the S23 FE a more suitable option for users who intend to keep their device for four or five years without missing out on new features or security protocols.
  • Physical Build and Resilience: The Galaxy S21 5G features a polycarbonate back, which is highly resistant to shattering if dropped, whereas the Galaxy S23 FE uses a glass back that offers a different tactile feel but may require more protection. Both devices carry an IP68 rating, meaning they are equally protected against dust and brief immersion in water.
  • Sustainable Longevity: Choosing a sustainable choice like a quality-assured refurbished device ensures these materials stay in use longer, reducing the environmental impact of manufacturing new electronics. Both models are designed with high-quality components that maintain their structural integrity over several years of regular handling.

Year of Release

2021

2023

Compatible with latest Update

Yes

Yes

OS

Android

Android

Foldable

No

No

Performance

The internal hardware of both smartphones is designed to handle modern mobile applications, though the newer architecture in the Galaxy S23 FE provides a noticeable boost in efficiency and thermal management.

  • System Responsiveness and Gaming: The Galaxy S23 FE features more modern processing components that allow it to run demanding mobile games and video editing software with greater fluidity. Users will notice that the device stays cooler during intensive tasks compared to the Galaxy S21 5G, which may show signs of warmth during prolonged heavy use.
  • Battery Behaviour: With a larger 4,500mAh battery, the Galaxy S23 FE generally offers more endurance throughout a full day of mixed usage. The Galaxy S21 5G, equipped with a 4,000mAh battery, is efficient for its size but may require more frequent charging for users who rely heavily on mobile data or high-brightness settings.
  • Multitasking Capabilities: Both devices are equipped with 8GB of memory, which is sufficient for keeping multiple apps open simultaneously. However, the Galaxy S23 FE manages background processes more effectively, resulting in fewer instances where apps need to reload when switching between them.

Memory (GB)

8 GB

8 GB

Screen quality

While both devices utilise Samsung's advanced display technology, the differences in screen size and peak brightness levels impact the viewing experience in various environments.

  • Display Size and Immersion: The Galaxy S23 FE features a 6.4-inch display, providing a larger area for watching films or playing games, which many users find more immersive. In contrast, the Galaxy S21 5G uses a 6.2-inch screen, which contributes to its more compact form factor and makes it easier to navigate the entire interface with one hand.
  • Outdoor Visibility: The Galaxy S23 FE is capable of reaching higher peak brightness levels, which significantly improves readability when using the phone outside on a sunny day. The Galaxy S21 5G remains clear in most conditions but may struggle slightly more with glare in direct, intense sunlight.
  • Motion Smoothness: Both smartphones feature a 120Hz refresh rate, which ensures that scrolling through social media feeds and system animations appears incredibly smooth. This technology adjusts dynamically on both models to help balance visual fluidity with battery preservation.

Resolution

1080 x 2400

1080 x 2340

Screen type

Dynamic AMOLED 2X

Dynamic AMOLED 2X

Audiovisual

The camera systems on these two smartphones reflect a shift in photographic priorities, with the newer model focusing on sensor resolution and the older model on zoom clarity.

  • Main Sensor Detail: The Galaxy S23 FE is equipped with a 50-megapixel main camera that captures significantly more detail and produces clearer images in low-light settings. The Galaxy S21 5G uses a 12-megapixel main sensor which, while very capable for everyday photography, does not offer the same level of raw detail for large prints or heavy cropping.
  • Zoom and Telephoto Performance: The Galaxy S21 5G features a high-resolution 64-megapixel telephoto lens that is excellent for capturing sharp distant subjects. The Galaxy S23 FE takes a different approach with an 8-megapixel telephoto lens, which provides a similar optical zoom range but with less resolution for fine details at a distance.
  • Video and Audio Capture: Both devices support high-definition video recording with advanced stabilisation, making them reliable tools for content creation. The microphones on both models are optimised to filter out background noise, ensuring clear audio during video calls and voice recordings.

Main camera

12 megapixels

50 megapixels

Front camera

10 megapixels

10 megapixels

Miscellaneous

Beyond the core specifications, the physical handling and connectivity options of these two smartphones define their practical utility for different lifestyles.

  • Weight and Portability: The Galaxy S21 5G is notably lighter and thinner, weighing approximately 169 grams, which makes it one of the more pocket-friendly flagship devices. The Galaxy S23 FE is considerably heavier at 209 grams, a difference that is noticeable during long periods of handheld use or when carried in a jacket pocket.
  • Connectivity Standards: Both smartphones support 5G connectivity for high-speed mobile internet and include modern Wi-Fi and Bluetooth standards for stable connections to wireless headphones and smart home devices. They both utilise a USB-C port for charging and data transfer, following the modern industry standard.
  • Biometric Security: Each model includes an ultrasonic or optical fingerprint sensor located beneath the display glass, providing a secure and convenient way to unlock the device. They also support facial recognition software, giving users multiple options for protecting their personal data.

Weight

169 g

209 g

Screen size (in)

6.2

6.4

Mobile network

5G

5G

SIM card

Dual Physical SIM + eSIM

Dual Physical SIM

Carrier compatibility

Unlocked

Unlocked

User consensus from various technology forums and community discussions highlights the distinct strengths of each device. Owners of the Galaxy S21 5G frequently praise its ergonomic design, noting that it is one of the few modern smartphones that is truly comfortable to use with one hand. However, some long-term users have mentioned that the battery life has become a concern as the device ages. On the other hand, the Galaxy S23 FE is often commended for its vibrant display and the impressive performance of its 50-megapixel main camera, though some users find the device a bit bulky and heavy compared to other models in the S-series.

Users who prioritise a lightweight, compact phone that is easy to carry and resistant to back-panel cracks will find the Galaxy S21 5G aligns well with their needs. Conversely, those who prefer a larger screen for media consumption, better low-light photography, and the peace of mind that comes with a longer software update schedule will likely lean toward the Galaxy S23 FE. Choosing a quality-assured refurbished option for either model is a sustainable choice that provides a high-performance experience while contributing to a more circular economy. Ultimately, the decision depends on whether you value the agile portability of the S21 or the modern features and extended longevity of the S23 FE.

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