Samsung Galaxy S21+ 5G vs Xiaomi Redmi Note 11S - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 29, 2021 February 9, 2022
Release Year 2021 2022

Physical

Volume 95.23 cm³ 95.71 cm³
Screen Size to Weight Ratio 3.35 "/g 3.59 "/g
Weight 200 g 179 g
Height 161.5 mm 159.9 mm
Width 75.6 mm 73.9 mm
Thickness 7.8 mm 8.1 mm
Foldable Design No No
Available Colors
  • Phantom Violet
  • Phantom Pink
  • Phantom Black
  • Phantom Silver
  • Phantom Gold
  • Phantom Red
  • Pearl White
  • Twilight Blue
  • Graphite Gray

Display

Screen Size 6.7 " 6.43 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 88.8 % 84.5 %
Pixel Density 394 PPI 409 PPI
Refresh Rate 120 Hz 90 Hz
Typical Brightness N/A 700 nits
HBM Brightness N/A N/A
Peak Brightness 1300 nits 1000 nits

Hardware

Battery Capacity per Screen Area 106.93 mAh/in² 120.93 mAh/in²
Battery Density 50.4 mAh/cm³ 52.24 mAh/cm³
Battery Capacity 4800 mAh 5000 mAh
NFC Support Yes Yes
Chipset Exynos 2100 (5 nm) - International Mediatek MT6781 Helio G96 (12 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (2x2.05 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Mali-G78 MP14 - International Mali-G57 MC2

Connectivity

USB Version 3.2 2.0
OTG Support 1 1
DisplayPort
DisplayPort Version N/A N/A
USB Features USB Type-C 3.2, OTG USB Type-C 2.0, OTG

Software

Operating System Android Android
Initial OS Version 11 11
Maximum OS Version 15

Comparison Summary

Smartphone Comparison: Samsung Galaxy S21+ 5G vs. Xiaomi Redmi Note 11S

1. Specifications Comparison

FeatureSamsung Galaxy S21+ 5GXiaomi Redmi Note 11SPractical Impact
Design
Dimensions161.5 × 75.6 × 7.8 mm159.9 × 73.9 × 8.1 mmS21+ is slightly larger and thinner; Note 11S is more compact and slightly thicker, making it a little easier to handle one-handed, especially for smaller hands.
Weight200g179gNote 11S is significantly lighter, making it more comfortable for extended use and carrying in pockets.
Display
Size6.7"6.43"S21+ offers a slightly larger viewing area, better for media consumption, gaming, and multitasking.
Resolution1080x24001080x2400Both offer the same sharpness; text and images will appear equally clear on both screens.
PPI394409Both phones have similar pixel density, meaning the display sharpness is almost identical.
TechnologyAMOLEDAMOLEDBoth displays provide vibrant colors, deep blacks, and great contrast.
Refresh Rate120Hz90HzS21+ offers smoother scrolling and animations, making the user experience feel more fluid, especially during gaming or fast-paced content.
Brightness1300 nits1000 nitsS21+ is much brighter, offering significantly better outdoor visibility in bright sunlight.
Performance
ChipsetExynos 2100 (5 nm)Mediatek Helio G96 (12 nm)S21+ has a much more powerful processor, resulting in faster app loading, smoother multitasking, and better gaming performance.
AnTuTu Score749,100302,877S21+ offers substantially higher performance, leading to a noticeably faster and smoother experience in demanding tasks.
GPUMali-G78 MP14Mali-G57 MC2S21+ has a more powerful GPU, which is important for smooth gaming and graphically intensive applications.
Battery
Capacity4800mAh5000mAhNote 11S has a slightly larger battery, offering the potential for marginally longer usage between charges.
Charging25W33WNote 11S charges faster, reducing the time spent plugged into the wall.
FeaturesWireless charging, Reverse Wireless, No ChargerReverse Charging, Non-removableS21+ offers convenient wireless charging and reverse wireless charging for accessories. Note 11S does not include wireless charging options.
Camera
Standard Lens12MP, f/1.8108MP, f/1.9Note 11S has much higher resolution, which can result in more detail in good lighting conditions. S21+ has wider aperture, better low-light performance.
Telephoto/Portrait64MP, f/2.0Not AvailableS21+ has a dedicated telephoto lens, enabling optical zoom capabilities for close up shots, while Note 11S has no such lens.
Selfie Lens10MP, f/2.216MP, f/2.4Note 11S has higher resolution, which can provide more detail, while S21+ has slightly wider aperture for potentially better low-light performance.
Wide Angle LensNot Available8MP, f/2.2Note 11S has a dedicated wide-angle lens, allowing for capturing more of a scene in a single shot.
Portrait ModeNot Available2MP, f/2.4Note 11S has a dedicated depth sensor which helps with portrait mode photos, while S21+ does not.
Macro LensNot Available2MP, f/2.4Note 11S has a dedicated macro lens, allowing for detailed close-up shots of small objects.
Wide Angle + Macro12.2MP, f/2.2Not AvailableS21+ has a dedicated wide angle and macro lense combined, allowing for versatility.
VideoUp to 8K@24fpsUp to 1080p@30fpsS21+ can record much higher quality video, suitable for professional use or high-resolution viewing. The Note 11S has basic video recording capabilities.
DxOMarkMobile: 111Not AvailableS21+ camera is significantly better in terms of overall quality, image quality and video quality.
Software
OSAndroid 11 (Upgradable to 15)Android 11S21+ offers longer software support and upgrades.
Connectivity
Wi-FiWi-Fi 6 (802.11ax)Wi-Fi 5 (802.11ac)S21+ supports faster Wi-Fi standard, ideal for faster downloads and streaming.
Bluetooth5.0 with Apt-X, more profiles5.0 with EDRS21+ supports more Bluetooth audio codecs and profiles providing more advanced features.
GPSL1+L5, E1+E5aStandard GPSS21+ offers more accurate GPS with dual-band support.
SIMDual SIM + eSIMDual SIMS21+ supports eSIM, allowing you to switch carriers digitally.
Storage
Internal128/256GB64/128GBS21+ offers higher storage options, ideal for those who need a lot of space for photos, videos, and apps.
RAM8GB6/8GBS21+ offers consistent RAM, and potentially better multitasking capabilities.
ExpandableNoNoNeither phone allows expandable storage, you should choose a configuration based on your needs.
Audio
QualityDolby Atmos, Noise CancellationHi-Res AudioS21+ offers a more immersive and high-quality audio experience.
Security
FeaturesBasic fingerprint sensorSide-mounted fingerprintNote 11S features a more advanced side-mounted fingerprint sensor. S21+ has basic fingerprint sensor functionality.
Build Quality
Screen ProtectionGorilla Glass VictusGorilla Glass 3S21+ offers superior screen protection from scratches and drops.
Sensors
FeaturesIncludes barometerUltrasonic Proximity VirtualS21+ includes additional environmental sensors, while note 11S uses ultrasonic proximity virtual.

2. Key Differences Analysis

Samsung Galaxy S21+ 5G Advantages:

  • Superior Performance: Much faster processor and GPU leading to better gaming and app performance.
  • Better Display: Brighter display with smoother 120Hz refresh rate for improved outdoor visibility and a more fluid user experience.
  • More Advanced Camera System: Telephoto lens for optical zoom, higher video recording capabilities (up to 8K), and generally better image quality (as indicated by DxOMark).
  • Wireless Charging: Offers both wireless and reverse wireless charging capabilities, providing convenience for wireless accessories.
  • Enhanced Audio Features: Dolby Atmos and Noise cancellation for higher quality audio playback and clearer calls.
  • Premium Build Quality: Gorilla Glass Victus screen protection and an additional environmental sensor like a barometer for altitude tracking.
  • Better Software Support: Longer software support and upgrades with the ability to upgrade to Android 15.
  • More Advanced Connectivity: Wi-Fi 6, better GPS accuracy, and support for eSIM.

Xiaomi Redmi Note 11S Advantages:

  • Lower Weight: More comfortable for extended use.
  • Faster Charging: Charges faster with 33W charging, minimizing downtime.
  • Larger Battery: Offers slightly better battery life due to larger battery.
  • Higher Resolution Primary Camera: 108MP main sensor can capture more detailed photos in good lighting conditions.
  • Dedicated Additional Camera Lenses: Features dedicated wide-angle, macro, and depth sensors for extra flexibility.
  • Side Mounted Fingerprint Sensor: Provides more advanced and accessible biometric security.
  • Lower Cost: Typically available at a lower price point.

Trade-offs:

  • The S21+ sacrifices the lower cost and slightly better battery life for significantly higher performance and camera quality.
  • The Note 11S offers a more budget-friendly option, but with substantial compromises in performance, display quality, and camera versatility.

3. User Profiles & Recommendations

Samsung Galaxy S21+ 5G:

  • Ideal Users:
    • Users who prioritize performance and speed for gaming and demanding apps.
    • Photography and videography enthusiasts who want a versatile camera system with high-quality results.
    • Users who value a premium display experience with high brightness and smooth refresh rate.
    • Tech enthusiasts who want the latest connectivity features and wireless charging.
  • Use Cases:
    • High-end mobile gaming, video editing, content creation, professional photography.
    • Heavy multitasking, extended use outdoors in bright sunlight.
    • Users who prefer a premium build quality and longer software updates.

Xiaomi Redmi Note 11S:

  • Ideal Users:
    • Budget-conscious users who want a capable phone with a decent camera.
    • Users who value longer battery life and faster charging.
    • Users who need a lighter phone and dont need to do heavy tasks.
    • Users who want a versatile camera with different dedicated lens modes.
  • Use Cases:
    • Everyday social media, browsing, photography, and casual gaming.
    • Users who prefer a good set of features at a more affordable price point.
    • Users who use their phone for extended periods without readily accessible charging points.

4. Decision Framework

Key Questions to Consider:

  1. What is your budget? The Note 11S is significantly more budget-friendly.
  2. How important is performance for you? If you prioritize smooth, fast performance, the S21+ is the clear choice.
  3. How important is the camera experience? If you need optical zoom, higher video quality, and superior low light, the S21+ is the better option. If you are okay with average quality for day to day use then the Note 11S is fine.

Scenario-Based Recommendations:

  • Scenario 1 (Power User): You need a phone for demanding tasks like gaming, video editing, and heavy multitasking. Recommendation: Samsung Galaxy S21+ 5G for its superior performance, better display and more versatile camera.
  • Scenario 2 (Budget Conscious): You want a reliable phone for everyday use without breaking the bank. Recommendation: Xiaomi Redmi Note 11S for its lower cost, decent performance, and capable camera.
  • Scenario 3 (Photography): You want the best camera for everyday use, photos, videos and social media. Recommendation: Samsung Galaxy S21+ 5G for better image quality, video quality, and versatility.
  • Scenario 4 (Casual User): You primarily use your phone for social media, browsing, and basic tasks. Recommendation: Xiaomi Redmi Note 11S which will handle these tasks and provide additional features.
  • Scenario 5 (Value User): You would like the most bang for your buck, focusing on getting the most value for the price you pay. Recommendation: Xiaomi Redmi Note 11S is the better value choice.

My Choice

If I were choosing between these two phones, I would pick the Samsung Galaxy S21+ 5G. While the Xiaomi Redmi Note 11S presents a compelling option for budget-conscious users, the S21+ offers a significant upgrade in overall experience that aligns with my preferences and needs.

Here's why:

  • Performance: As a heavy user who does a lot of multitasking, gaming and video editing, the Exynos 2100 chipset is far more desirable, and the higher benchmark score and more powerful GPU would be beneficial to me.
  • Display: I highly value a high-quality display, especially when it comes to brightness and fluidity. The brighter display with 120Hz refresh rate on the S21+ offers a much better visual experience, particularly when I'm using my phone outdoors.
  • Camera: While the 108MP camera on the Redmi Note 11S sounds good on paper, the S21+ camera is more versatile, with better quality in lower light and the added benefit of an optical telephoto lens and 8K video recording.
  • Build and Features: The premium build quality of the S21+, and the additional features like Wireless Charging, Dolby Atmos and longer software support make it a much better option for the long run.

Ultimately, my choice would be based on a desire for better performance and more advanced features, even if it comes at a higher price. The Samsung Galaxy S21+ 5G, for me, represents the better overall package, and a more seamless user experience.

Emily Harper
Emily Harper

Technology Insights Specialist

Dedicated technology writer specializing in mobile device analysis and technology communication. Expert at translating complex smartphone features into clear, actionable insights for diverse audiences.

Key Strengths:

  • Mobile technology analysis
  • Digital media communication
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Bridging technical complexity with engaging, accessible narratives.