Samsung Galaxy S21 5G vs Xiaomi Redmi 13C - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 29, 2021 November 10, 2023
Release Year 2021 2023

Physical

Volume 85.33 cm³ 106.14 cm³
Screen Size to Weight Ratio 3.67 "/g 3.51 "/g
Weight 169 g 192 g
Height 151.7 mm 168 mm
Width 71.2 mm 78 mm
Thickness 7.9 mm 8.1 mm
Foldable Design No No
Available Colors
  • Phantom White
  • Phantom Gray
  • Phantom Violet
  • Phantom Pink
  • Midnight Black
  • Glacier White
  • Navy Blue
  • Clover Green

Display

Screen Size 6.2 " 6.74 "
Resolution 1080 x 2400 720 x 1600
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 85.9 % 83.7 %
Pixel Density 421 PPI 260 PPI
Refresh Rate 120 Hz 90 Hz
Typical Brightness N/A 450 nits
HBM Brightness N/A 600 nits
Peak Brightness 1300 nits N/A

Hardware

Battery Capacity per Screen Area 104.06 mAh/in² 110.07 mAh/in²
Battery Density 46.88 mAh/cm³ 47.11 mAh/cm³
Battery Capacity 4000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Exynos 2100 (5 nm) - International Mediatek MT6769Z Helio G85 (12 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU Mali-G78 MP14 - International Mali-G52 MC2

Connectivity

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

Software

Operating System Android Android
Initial OS Version 11 13
Maximum OS Version 15

Comparison Summary

1. Specifications Comparison

FeatureSamsung Galaxy S21 5GXiaomi Redmi 13CPractical Impact
Design
Dimensions151.7 × 71.2 × 7.9 mm168 × 78 × 8.1 mmS21 is more compact and pocketable, Redmi 13C is larger and may feel bulkier.
Weight169g192gS21 is significantly lighter, making it more comfortable for extended use.
Display
Size6.2"6.74"Redmi 13C offers more screen real estate for media consumption, but may be less comfortable for one-handed use.
Resolution1080x2400720x1600S21 offers sharper text and images, leading to a crisper viewing experience.
Pixel Density421 PPI260 PPIS21's higher pixel density results in a noticeably clearer and more detailed display.
TechnologyAMOLEDIPS LCDS21 has deeper blacks, better contrast, and more vibrant colors, resulting in superior visual quality.
Refresh Rate120Hz90HzS21 provides smoother scrolling and animations, enhancing the user experience.
Brightness1300 nits0 nitsS21 is significantly brighter, making it much easier to view outdoors in sunlight. Note: the 13C brightness value is listed as 0 nits; this is likely inaccurate, but specific data is missing.
Performance
ChipsetExynos 2100 (5 nm)Mediatek Helio G85 (12 nm)S21's 5nm chip offers much faster performance for smoother multitasking, gaming, and demanding apps.
AnTuTu Score749,100222,000S21 is significantly more powerful, resulting in faster app loading and overall responsiveness.
GPUMali-G78 MP14Mali-G52 MC2S21 offers superior graphics capabilities, which translates to smoother and higher-fidelity gaming.
Camera
Standard Camera12MP, f/1.8, 1/1.76" sensor50MP, f/1.8, 1/2.76" sensorRedmi 13C has higher resolution but the S21 has a larger sensor which typically leads to better low light performance and dynamic range.
Telephoto64MP, f/2.0, 1/1.72" sensorNot AvailableS21 can zoom with less loss in quality and better portrait photos
Ultrawide12.2MP, f/2.2, 1/2.55" sensorNot AvailableS21 captures wide angle shots with more detail than Redmi 13C.
MacroNot Available2MP, f/2.4Redmi 13C can take close up photos, S21 doesn't have a dedicated macro lens.
Front Camera10MP, f/2.2, 1/3.2" sensor8MP, f/2.0S21's front camera offers slightly higher resolution, Redmi 13C's has a wider aperture for potentially brighter selfies.
Video RecordingUp to 8K@24fpsUp to 1080p@30fpsS21 offers significantly higher video recording capabilities, suitable for professional use.
Camera FeaturesOIS, Optical Zoom, PDAF, Night ModeDigital Image StabilisationS21 has additional features like OIS for better video recording and optical zoom for higher quality zoomed photos.
Battery
Capacity4000mAh5000mAhRedmi 13C has a larger battery, potentially offering longer battery life, but actual endurance is dependant on usage and optimisation.
Charging25W Fast Charging18W Fast ChargingS21 charges faster than the Redmi 13C.
FeaturesWireless Charging, Reverse Wireless ChargingS21 offers additional charging options not available on the Redmi 13C.
Software
OSAndroid 11 (upgradable to 15)Android 13Redmi 13C has a newer Android version out of the box but the S21 can be upgraded to a higher version in the future.
Connectivity
Wi-FiWi-Fi 6Wi-Fi 5S21 supports faster speeds, lower latency, and better performance in crowded networks.
Bluetooth5.05.3Redmi 13C has a newer Bluetooth version, potentially more efficient.
Storage
Internal Storage128GB/256GB128GB/256GBBoth offer similar storage options.
RAM8GB4GB/6GB/8GBS21 offers a consistent 8GB RAM, Redmi 13C offers varying RAM options.
Expandable StorageNoNoNeither phone supports expandable storage
Audio
QualityDolby Atmos, Stereo Speakers, Noise cancellation microphoneStereo SpeakersS21 has better audio features, offering a more immersive and clearer sound experience.
Security
SecurityIn display FingerprintSide mounted FingerprintRedmi 13C has a more advanced side mounted fingerprint sensor compared to S21's older design.
Build Quality
Screen ProtectionCorning Gorilla Glass VictusUnknownS21 screen is much more resistant to scratches and impacts.
Sensors
SensorsComprehensive suite including Gyroscope, BarometerLimited suiteS21 offers advanced sensor capabilities, useful for advanced features and gaming.

2. Key Differences Analysis

Samsung Galaxy S21 5G Advantages:

  • Superior Display: AMOLED panel with higher resolution, pixel density, brightness, and refresh rate provides significantly better visual quality.
  • Higher Performance: The Exynos 2100 chipset offers vastly superior processing power, resulting in faster app loading, smoother multitasking, and better gaming performance.
  • Advanced Camera System: The triple camera system with optical zoom, OIS, and 8K video recording offers significantly more versatility and better quality, especially in low light.
  • Faster Charging and Wireless Charging: Faster wired charging and additional options such as wireless and reverse wireless charging.
  • Better Build Quality: Corning Gorilla Glass Victus provides robust screen protection.
  • Enhanced Audio: Dolby Atmos and noise cancellation offer superior audio experience.
  • More Advanced Sensors: Includes additional sensors for advanced functionalities.

Practical Implications for S21: The S21 is better for users who prioritize a premium display, high performance, advanced camera capabilities, and a more feature-rich experience.

Xiaomi Redmi 13C Advantages:

  • Larger Display: A larger 6.74" screen is ideal for media consumption and gaming, though it is lower quality and resolution.
  • Larger Battery: A 5000mAh battery potentially offers longer battery life.
  • Newer OS: Comes with a newer version of Android.
  • Newer Bluetooth Version Newer bluetooth version 5.3 compared to the older version of the S21.
  • Side Mounted Fingerprint Sensor: More advanced side-mounted fingerprint sensor compared to the older design of S21.
  • Macro Lens: Offers macro photography capabilities not present on the S21.
  • Lower cost: This phone is more affordable than the S21.

Practical Implications for Redmi 13C: The Redmi 13C is ideal for users looking for a larger screen, longer battery life, and essential features at a more budget-friendly price point.

Significant Trade-offs:

  • S21: Loses in battery size and has an older design.
  • Redmi 13C: Sacrifices performance, display quality, and camera versatility for a lower price and bigger battery and screen.

3. User Profiles & Recommendations

Samsung Galaxy S21 5G:

  • Ideal User: Power users, mobile gamers, photography enthusiasts, and anyone who values a premium smartphone experience.
  • Use Cases:
    • High-end gaming with smooth graphics and responsiveness.
    • Professional-grade photo and video recording.
    • Media consumption with vibrant colors, deep blacks, and high brightness.
    • Demanding multitasking and productivity tasks.
    • Users who require wireless charging and fast charging capabilities.
  • Price-to-Value: High price but offers top-tier performance and features; a good value for the performance it offers but only if the budget permits.

Xiaomi Redmi 13C:

  • Ideal User: Budget-conscious consumers, casual users, and users who prioritize battery life and a large screen.
  • Use Cases:
    • Basic web browsing, social media, and messaging.
    • Watching videos and movies on a large display.
    • Long hours of use on a single charge.
    • Casual photography and close-up macro shots.
    • Users who prefer a newer Android version out of the box.
  • Price-to-Value: Offers good value for money for its basic features and battery life; great option for those on a strict budget.

4. Decision Framework

Key Questions for Buyers:

  1. What is your primary use case? (Gaming, photography, media, basic use)
  2. What is your budget? (Are you looking for the best performance regardless of cost, or a good value?)
  3. Which features are most important to you? (Display quality, performance, camera, battery life, physical size)

Scenario-Based Recommendations:

  • Scenario 1: Top Performance and Premium Features (Budget not a major concern): Choose the Samsung Galaxy S21 5G for its superior display, processing power, camera, and additional features like wireless charging.
  • Scenario 2: Budget-Friendly with Long Battery Life and Large Screen: Choose the Xiaomi Redmi 13C for its lower price, larger battery, and bigger display for media consumption.
  • Scenario 3: Balanced User (Moderate Usage with Focus on the Best Possible Screen): Consider the Samsung Galaxy S21 5G for its overall superior performance and display experience over the Redmi 13C's larger, but lower quality screen.

My Choice

Given my priorities, I would choose the Samsung Galaxy S21 5G. While the Redmi 13C offers a larger battery and a lower price, the S21's superior display, performance, and camera capabilities are essential for my needs. I prioritize a smooth, responsive user experience, and I value the high-quality photo and video capture abilities that the S21 offers. The superior display and build quality make the additional cost of the S21 justified for my usage patterns. Although the battery is smaller, the fast charging and reverse wireless charging, along with good battery optimisation mean that it is still enough to last me through the day. The S21 also offers a much more premium feel, which is very important to me.

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
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Bridging technical complexity with engaging, accessible narratives.