Galaxy S21 5G Vs Galaxy Z Flip5

Galaxy S21 5G
Galaxy S21 5G
Starting at

Refurbished price:£128.00

Versus £829.00 new

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Galaxy Z Flip5
Galaxy Z Flip5
Starting at

Refurbished price:£266.76

Versus £1,145.61 new

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Ratings

The Samsung Galaxy S21 5G, released in early 2021, and the Samsung Galaxy Z Flip5, launched in mid-2023, represent two distinct approaches to the modern smartphone experience. While the Galaxy S21 5G follows the traditional "slab" design focused on reliability and a comprehensive camera system, the Galaxy Z Flip5 introduces a foldable form factor that prioritises portability and a unique secondary display. Both devices run on the Android operating system with Samsung’s custom interface, though the Z Flip5 benefits from software optimisations specifically designed for its folding screen and external cover display.

Scores

Durability

The age difference between these two devices significantly impacts their expected lifespan and software support, as the newer model benefits from more recent engineering standards.

  • Software Longevity: The Galaxy Z Flip5 is expected to receive software updates for several years longer than the S21 5G, making it a more suitable choice for those who plan to keep their device for a long period and want the latest security features.
  • Physical Construction: The S21 5G features a traditional rigid build with a reinforced plastic back, while the Z Flip5 uses a complex hinge mechanism and a flexible internal screen, which introduces more moving parts that require careful handling over time.
  • Repairability: Standard smartphones like the S21 5G generally have more straightforward repair processes for common issues like screen replacements, whereas foldable technology often requires specialised service due to its intricate internal components and layered display structure.

Year of Release

2021

2023

Compatible with latest Update

Yes

Yes

OS

Android

Android

Foldable

No

Yes

Performance

In everyday use, both smartphones provide a responsive experience, but the generational gap in internal hardware gives the Galaxy Z Flip5 a noticeable edge in demanding scenarios.

  • System Responsiveness: The Galaxy Z Flip5 handles intensive multitasking and high-end mobile gaming with greater ease, showing fewer signs of slowing down when switching between multiple large applications compared to the older model.
  • Battery Management: While the Galaxy S21 5G has a larger physical battery capacity, the Galaxy Z Flip5 uses more efficient internal components that help manage power consumption during routine tasks like browsing or messaging.
  • Storage and Multitasking: Both devices offer ample memory for keeping apps open in the background, though the Z Flip5 is better equipped to handle future software updates that may demand more processing power as apps become more complex.

Memory (GB)

8 GB

8 GB

Screen quality

The most striking difference between these two models lies in their display technology and how users interact with their digital content on a daily basis.

  • Display Versatility: The Galaxy Z Flip5 features a large, vibrant internal screen that folds in half, complemented by a functional external window for quick notifications, whereas the S21 5G offers a consistent, high-quality flat display.
  • Visual Fluidity: Both screens support high refresh rates, ensuring that scrolling through social media feeds or navigating menus feels smooth and responsive to the touch without noticeable lag.
  • Outdoor Visibility: The Galaxy Z Flip5's internal display is designed to reach higher brightness levels, making it easier to read text or view photos when used in direct sunlight compared to the older screen technology in the S21 5G.

Resolution

1080 x 2400

1080 x 2640

Screen type

Dynamic AMOLED 2X

Foldable Dynamic AMOLED 2X

Audiovisual

Photography and media consumption habits may dictate which of these devices feels more natural to use, as they offer different camera configurations for different needs.

  • Camera Versatility: The Galaxy S21 5G includes a dedicated telephoto lens, allowing for clearer zoomed-in photos, a feature that is absent on the Galaxy Z Flip5, which relies on its main and ultra-wide lenses for all shots.
  • Creative Capture: The Z Flip5 allows for unique photography angles by partially folding the device to act as its own tripod, which is particularly useful for hands-free video calls or self-portraits without extra equipment.
  • Video and Audio: Both smartphones record high-definition video with effective stabilisation, and their stereo speakers provide a clear audio experience for watching videos or listening to podcasts without the need for external headphones.

Main camera

12 megapixels

12 megapixels

Front camera

10 megapixels

10 megapixels

Miscellaneous

Beyond the core specifications, the physical footprint and connectivity options define the daily handling experience and convenience of these two Samsung models.

  • Portability and Weight: The Galaxy Z Flip5 is designed to be exceptionally compact when folded, fitting easily into small pockets, while the S21 5G maintains a slim and lightweight profile that is comfortable for one-handed use.
  • Biometric Security: The S21 5G uses a fingerprint sensor hidden beneath the glass of the display, whereas the Z Flip5 integrates its fingerprint reader into the power button on the side for quick and tactile access.
  • Connectivity Standards: Both devices support 5G connectivity for fast mobile data and include modern standards for Wi-Fi and Bluetooth, ensuring compatibility with the latest wireless accessories and home networks.

Weight

169 g

187 g

Screen size (in)

6.2

6.7 /3.4

Mobile network

5G

5G

SIM card

Dual Physical SIM + eSIM

Physical SIM + eSIM

Carrier compatibility

Unlocked

Unlocked

User feedback from various tech communities highlights a clear divide in preference based on lifestyle needs. The Galaxy S21 5G is frequently praised for its reliable camera system and its familiar, sturdy design that feels dependable for everyday tasks. However, some users note that its battery life can be a limiting factor during heavy workdays. On the other hand, the Galaxy Z Flip5 receives significant acclaim for its innovative folding design and the usefulness of the large cover screen, though some owners express caution regarding the long-term durability of the folding screen under intense use.

Users who prioritise a traditional smartphone experience with a versatile zoom camera and a more conventional repair path will likely find the Galaxy S21 5G meets their requirements effectively. Conversely, those who value cutting-edge design, extreme portability, and the ability to use their phone in new ways—such as the hands-free mode for video calls—will find the Galaxy Z Flip5 more aligned with their interests. Choosing a quality-assured refurbished option for either model is an eco-friendly alternative that supports a more sustainable electronics lifecycle. Ultimately, the decision rests on whether one prefers the proven reliability of a classic flagship or the compact innovation of a modern foldable. As a sustainable choice, both refurbished devices offer high-end features that remain relevant in today's mobile landscape.

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