Galaxy S21 5G Vs OnePlus 10 Pro

Galaxy S21 5G
Galaxy S21 5G
Starting at

£133.00

£829.00 new

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OnePlus 10 Pro
OnePlus 10 Pro
Starting at

£205.00

£899.00 new

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Ratings

The Samsung Galaxy S21 5G (2021) and the OnePlus 10 Pro (2022) are two prominent Android smartphones that cater to different user preferences within the mobile landscape. While the Galaxy S21 focuses on a compact, ergonomic design that prioritises ease of use, the OnePlus 10 Pro offers a larger, more expansive experience with a focus on rapid charging and high-resolution display technology. Both devices run on the Android operating system, though they offer distinct software experiences through Samsung’s One UI and OnePlus’s OxygenOS, each providing unique customisation options and interface layouts for their respective users.

Scores

Durability

The Galaxy S21 and OnePlus 10 Pro offer different trajectories for long-term use based on their release dates and manufacturer support policies.

  • Software Longevity: The Galaxy S21, despite being older, benefited from an extended update policy, though it is now approaching the end of its major OS update cycle. The OnePlus 10 Pro, launched a year later, provides a slightly longer window of security support from its initial release date, ensuring it remains protected against modern digital threats for a longer period.
  • Physical Resilience: The S21 features a reinforced polycarbonate back which is highly resistant to cracks from drops, whereas the OnePlus 10 Pro uses a glass construction that feels substantial but may require more careful handling to avoid damage.
  • Repair Accessibility: Samsung devices generally enjoy a wider network of repair providers and more readily available replacement parts, which can extend the practical lifespan of the device if the screen or battery requires servicing in the future.

Year of Release

2021

2022

Compatible with latest Update

Yes

Yes

OS

Android

Android

Foldable

No

No

Performance

Both smartphones are designed to handle demanding modern applications, though they differ in how they manage power and multitasking over long periods of use.

  • System Responsiveness: The OnePlus 10 Pro utilises newer internal components that provide a slight edge in loading heavy games and processing high-resolution video files. The Galaxy S21 remains highly responsive for everyday tasks like web browsing, social media, and switching between multiple productivity apps without noticeable lag.
  • Battery and Charging: Users will notice a significant difference in power management; the OnePlus 10 Pro features a larger battery capacity and significantly faster charging speeds, allowing it to go from empty to full in a fraction of the time required by the S21.
  • Multitasking Efficiency: With generous memory options, both devices keep background apps active effectively, though the OnePlus 10 Pro’s thermal management systems help it maintain peak performance during extended periods of heavy use.

Memory

8 GB

8 GB

Screen quality

The viewing experience is one of the most immediate differences between these two models, impacting everything from reading text to watching films.

  • Display Technology: The OnePlus 10 Pro features a large, curved display with a higher resolution that provides exceptional sharpness for media consumption. In contrast, the Galaxy S21 uses a flat, standard high-definition panel that prioritises colour accuracy and ease of use without the accidental touches sometimes associated with curved edges.
  • Smoothness and Motion: Both devices offer a high refresh rate of 120Hz, ensuring that scrolling through lists and animations feels fluid and responsive to the touch.
  • Outdoor Visibility: Each phone reaches high brightness levels, making the screens legible even under direct sunlight, though the OnePlus 10 Pro’s advanced panel technology allows it to adjust its power consumption more efficiently based on the content being displayed.

Resolution

1080 x 2400

1440 x 3216

Screen type

Dynamic AMOLED 2X

LTPO2 Fluid AMOLED

Audiovisual

Photography and media playback are central to both devices, with each brand taking a different approach to image processing and sound output.

  • Camera Versatility: The Galaxy S21 is known for its reliable triple-camera setup, particularly its high-resolution zoom lens which captures clear details from a distance. The OnePlus 10 Pro focuses on natural colour reproduction and features a specialised ultra-wide lens that captures a broader field of view with minimal distortion.
  • Video Capabilities: Both smartphones support high-definition video recording with effective stabilisation, making them suitable for capturing smooth footage while walking or moving.
  • Audio Experience: The stereo speakers on both models provide clear and balanced sound for podcasts and videos, though the OnePlus 10 Pro offers a slightly more immersive soundstage due to its larger physical dimensions and speaker placement.

Main camera

12 megapixels

48 megapixels

Front camera

10 megapixels

32 megapixels

Miscellaneous

Beyond the core specifications, the physical handling and connectivity features define the daily user experience for these two smartphones.

  • Handling and Ergonomics: The Galaxy S21 is significantly lighter and narrower, making it one of the few modern flagships that is comfortable to operate with a single hand. The OnePlus 10 Pro is a larger, heavier device that requires two hands for many tasks but offers more screen real estate for productivity.
  • Biometric Security: The S21 uses an ultrasonic fingerprint sensor that works well even if fingers are slightly damp, while the OnePlus 10 Pro uses an optical sensor that is very fast but relies on a bright light to read the print.
  • Connectivity Standards: Both devices are fully compatible with 5G networks and modern Wi-Fi standards, ensuring fast download speeds and stable connections in areas with updated infrastructure.

Weight

169 g

201 g

Screen size (in)

6.2

6.7

Network

5G

5G

SIM card

Dual Physical SIM + eSIM

Dual Physical SIM

Carrier compatibility

Unlocked

Unlocked

User consensus from various tech communities highlights the Galaxy S21 as a favourite for those who value portability and a reliable, no-nonsense software experience. It is frequently praised for its compact size and durable build, though some users note that the battery requires more frequent charging during heavy use. The OnePlus 10 Pro receives acclaim for its incredibly fast charging and its expansive, high-quality display, which users find ideal for gaming and streaming. However, some community members have expressed a preference for the more traditional flat screen of the Samsung over the OnePlus's curved edges.

Users who prioritise a compact form factor and a device that is easy to carry in a pocket will find the Galaxy S21 5G well-suited to their needs. Conversely, those who frequently watch videos, play mobile games, or need a phone that charges in minutes will likely lean toward the OnePlus 10 Pro. Both devices remain relevant in 2026 as a sustainable choice for those looking to reduce their environmental impact. Choosing a quality-assured refurbished option allows users to access these high-end features while supporting a more circular economy. Ultimately, the choice depends on whether one values one-handed comfort or a large-scale multimedia experience.

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