Galaxy S21 5G Vs Xiaomi Redmi Note 11

Galaxy S21 5G
Galaxy S21 5G
Starting at

Refurbished price:161.00

Versus €1,026.00 new

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Xiaomi Redmi Note 11
Xiaomi Redmi Note 11
Starting at

Refurbished price:108.00

Versus €249.99 new

See options

Ratings

The Samsung Galaxy S21 5G, released in January 2021, and the Xiaomi Redmi Note 11, launched globally in January 2022, represent distinct segments within the smartphone market. The Galaxy S21 5G was a flagship device at its release, offering premium features and performance, while the Redmi Note 11 was positioned as a mid-range option focusing on value and essential functionalities. Both devices initially ran on the Android 11 operating system, but their software support timelines and overall capabilities diverge significantly.

Scores

Durability

The expected practical lifespan of these devices is influenced by their release timelines, software support, and physical resilience.

  • Software Longevity: The Samsung Galaxy S21 5G, released in January 2021, received its final major Android OS update, Android 15, in May 2025, with security updates concluding around February 2026. The Xiaomi Redmi Note 11, launched in January 2022, typically receives fewer major Android updates and its security updates for some models ended around March 2025. This means the Galaxy S21 5G generally offered a longer period of major software support.
  • Physical Durability: The Galaxy S21 5G features Corning Gorilla Glass Victus for screen protection and boasts an IP68 rating, indicating high resistance to dust and water immersion. The Redmi Note 11 comes with Gorilla Glass 3 and an IP53 rating, providing protection against dust and splashes, but not full water immersion.
  • Repairability: While specific repairability scores can vary, the Galaxy S21 5G's more premium construction might present different repair challenges compared to the Redmi Note 11's design. Users seeking maximum software longevity and robust physical protection may find the Galaxy S21 5G to have offered a more extended premium experience.

Year of Release

2021

2022

Compatible with latest Update

Yes

No

OS

Android

Android

Foldable

No

No

Performance

The performance of these two smartphones varies considerably, reflecting their original market positioning and the components used.

  • Processing Power: The Galaxy S21 5G is equipped with a high-performance processor (either the Exynos 2100 or Snapdragon 888, depending on the region), enabling it to handle demanding applications, complex multitasking, and graphic-intensive games with smooth responsiveness. In contrast, the Redmi Note 11 utilizes a processor designed for efficient everyday tasks, which provides smooth performance for general use and lighter applications, though some users have reported occasional stutters when navigating the user interface at its higher refresh rate or during intensive gaming.
  • Multitasking and Storage: The Galaxy S21 5G typically comes with 8GB of RAM, facilitating seamless transitions between multiple open applications. It offers internal storage options of 128GB or 256GB, without expandable storage. The Redmi Note 11 is available with 4GB or 6GB of RAM, which is suitable for typical daily multitasking, and offers 64GB or 128GB of internal storage, with the added flexibility of expandable storage via a microSD card.
  • Overall Responsiveness: Users of the Galaxy S21 5G generally report a consistently fluid and responsive experience across various tasks. The Redmi Note 11 delivers a capable experience for its segment, but those requiring top-tier performance for heavy workloads or advanced gaming might notice the difference in processing capabilities.

Memory (GB)

8 GB

4 GB

Screen quality

Both devices feature vibrant AMOLED displays, but they differ in size, refresh rate capabilities, and brightness levels.

  • Display Technology and Clarity: The Galaxy S21 5G features a 6.2-inch Dynamic AMOLED 2X display, offering deep blacks, rich colors, and a resolution of 1080 x 2400 pixels for clear viewing. The Redmi Note 11 has a slightly larger 6.43-inch AMOLED display with the same 1080 x 2400 pixel resolution, also providing good clarity and color representation.
  • Refresh Rate and Smoothness: The Galaxy S21 5G boasts an adaptive 120Hz refresh rate, which can dynamically adjust between 48Hz and 120Hz to provide very smooth scrolling and animations while optimizing power consumption. The Redmi Note 11 offers a 90Hz refresh rate, which still provides a noticeably smoother experience than standard 60Hz displays, enhancing daily interactions.
  • Brightness for Outdoor Use: For outdoor visibility, the Galaxy S21 5G can reach a peak brightness of up to 1300 nits, making content easily viewable even in bright sunlight. The Redmi Note 11 offers a peak brightness of up to 1000 nits, which is also strong for its category and generally sufficient for outdoor use.

Resolution

1080 x 2400

1080 x 2400

Screen type

Dynamic AMOLED 2X

AMOLED

Audiovisual

The camera systems on the Galaxy S21 5G and Redmi Note 11 are designed for different user expectations and offer distinct capabilities.

  • Rear Camera System: The Galaxy S21 5G features a versatile triple camera setup on the rear, including a 12-megapixel wide lens, a 64-megapixel telephoto lens with 3x hybrid optical zoom, and a 12-megapixel ultrawide lens. This configuration allows for a range of photographic styles, from expansive landscapes to detailed zoomed-in shots. The Redmi Note 11 comes with a quad-camera system, comprising a 50-megapixel main sensor, an 8-megapixel ultrawide, a 2-megapixel macro, and a 2-megapixel depth sensor.
  • Photography Performance: Users generally praise the Galaxy S21 5G's camera for its overall quality and versatility, though some note that point-and-shoot results might not always surpass certain competitors. The Redmi Note 11 delivers solid performance from its main camera in good lighting conditions, but its ultrawide camera and low-light capabilities are often noted as less impressive.
  • Video Recording and Front Camera: The Galaxy S21 5G supports video recording up to 8K resolution, offering high-detail video capture. It includes a 10-megapixel front camera for selfies and video calls. The Redmi Note 11 does not offer 4K video recording, but provides a 13-megapixel front camera. The Galaxy S21 5G generally provides a more advanced and capable video recording experience.

Main camera

12 megapixels

50 megapixels

Front camera

10 megapixels

13 megapixels

Miscellaneous

Beyond core performance and display, several practical features and design elements differentiate these two smartphones.

  • Connectivity and Ports: The Galaxy S21 5G supports 5G cellular networks, offering faster data speeds where available, and includes Wi-Fi 6 for enhanced wireless connectivity. It features a USB-C port for charging and data transfer but lacks a 3.5mm headphone jack. The Redmi Note 11 supports 4G LTE networks and Wi-Fi 5. It also uses a USB-C port but retains the traditional 3.5mm headphone jack, which can be a convenience for many users.
  • Biometric Security and Build: For security, the Galaxy S21 5G incorporates an ultrasonic fingerprint sensor embedded under the display. The Redmi Note 11 features a side-mounted fingerprint sensor. In terms of physical characteristics, the Galaxy S21 5G measures approximately 151.7 x 71.2 x 7.9 mm and weighs around 169-171 grams, offering a relatively compact and lighter build. The Redmi Note 11 is slightly larger at about 159.9 x 73.9 x 8.1 mm and weighs 179 grams.
  • Additional Features: The Galaxy S21 5G has an IP68 rating for dust and water resistance, providing greater protection against environmental elements. The Redmi Note 11 has an IP53 rating, offering splash and dust resistance. The Redmi Note 11 also offers expandable storage via a microSD card, a feature absent in the Galaxy S21 5G.

Weight

171 g

179 g

Screen size (in)

6.2

6.43

Network

5G

4G

SIM card

Physical SIM + eSIM

Dual Physical SIM

Carrier compatibility

Unlocked

Unlocked

The Samsung Galaxy S21 5G and Xiaomi Redmi Note 11 cater to different user priorities, reflecting their distinct market positions. User feedback for the Galaxy S21 5G often highlights its excellent display quality, smooth performance, and capable camera system as strong points. However, some users have noted that battery life can be inconsistent, particularly as the device ages, and the absence of expandable storage or a headphone jack is a common criticism.

Conversely, the Redmi Note 11 is frequently praised for its bright AMOLED screen, long-lasting battery, and the inclusion of features like stereo speakers, a 3.5mm headphone jack, and a microSD card slot. Criticisms often revolve around its performance, which can experience stutters with the 90Hz user interface and demanding applications, as well as a less impressive ultrawide camera and a shorter period of software updates.

Users prioritizing a premium experience with high-end performance, advanced camera capabilities, and a more robust build will likely find the Samsung Galaxy S21 5G better suited to their needs. This device is ideal for those who engage in demanding tasks, mobile photography, and appreciate a compact flagship design. On the other hand, individuals who value a large, bright display, extended battery life, and traditional features like a headphone jack and expandable storage, and whose usage primarily involves everyday tasks and media consumption, may lean towards the Xiaomi Redmi Note 11. Both devices can be considered as quality-assured refurbished options, providing an eco-friendly alternative for consumers.

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