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

Detailed Comparison

Specification

General

Launch Date January 29, 2021 December 16, 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
  • Starlight Black
  • Startrail Green
  • Startrail Silver

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 No
Chipset Exynos 2100 (5 nm) - International Mediatek Dimensity 6100+ (6 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (2x2.2 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
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 13C 5GPractical Impact
Design
Dimensions151.7 × 71.2 × 7.9 mm168 × 78 × 8.1 mmS21 is significantly smaller and more pocketable. 13C 5G is larger, potentially less comfortable for one-handed use.
Weight169g192gS21 is lighter, making it more comfortable for extended holding. 13C 5G is noticeably heavier, may feel more substantial or burdensome.
Display
Size6.2"6.74"13C 5G has a larger screen for more immersive media consumption and multitasking. S21 is more compact, better for one hand use.
Resolution1080x2400720x1600S21 has a sharper, clearer display with significantly more detail. 13C 5G has a lower resolution, potentially appearing less crisp.
Pixel Density (PPI)421260S21 has a much sharper display, text and images appear clearer and more refined. 13C 5G has a less sharp display, which may be noticeable.
TechnologyAMOLEDIPS LCDS21's AMOLED display has deeper blacks, better contrast, more vibrant colors, and is more power-efficient with dark themes. 13C 5G's LCD will have less vibrant colours and contrast, and is less efficient.
Refresh Rate120Hz90HzS21's 120Hz offers smoother scrolling and animations, a more fluid visual experience. 13C 5G is still quite smooth, but less so than S21.
Brightness1300 nits0 nitsS21's display is much brighter, offering significantly better outdoor visibility in direct sunlight. 13C 5G’s brightness is not specified making its performance in sunlight uncertain.
Performance
ChipsetExynos 2100 (5 nm)Mediatek Dimensity 6100+ (6 nm)S21's chipset is significantly more powerful, resulting in smoother performance in demanding apps, better gaming performance and faster overall operation. 13C 5G's chipset is less powerful, suitable for less demanding tasks.
AnTuTu Score749,100442,000S21 scores much higher in benchmarks indicating better performance overall. 13C 5G scores considerably lower, suitable for basic tasks.
GPUMali-G78 MP14Mali-G57 MC2S21's GPU offers significantly superior graphics performance for gaming and demanding apps. 13C 5G's GPU is less capable, best suited for casual gaming.
Camera
Main Camera12MP, f/1.8, 1/1.76", 1.8µm50MP, f/1.8, 1/2.76", 0.64µmS21 has a larger sensor with bigger pixels for better low-light performance, while 13C 5G has a higher resolution. 13C may produce sharper images in good light conditions but lack in low light.
Telephoto Camera64MP, f/2.0, 1/1.72", 0.8µmNot AvailableS21 offers optical zoom capabilities and improved portrait photos. 13C 5G has no such camera.
Wide Angle Camera12.2MP, f/2.2, 1/2.55", 1.4µmNot AvailableS21 has a dedicated wide-angle camera for group shots and landscapes. 13C 5G has no such camera.
Selfie Camera10MP, f/2.2, 1/3.2", 1.22µm5MP, f/2.0,S21 has a higher resolution front camera for sharper selfies. 13C 5G has a wider aperture for low light but lower resolution.
Video Recording8K@24fps, 4K@60fps1080p@30fpsS21 offers professional-level video recording with higher resolution and frame rates. 13C 5G is limited to 1080p, suitable for basic videos.
DxOMark Score (Mobile)11163S21 has a superior overall camera performance. 13C 5G provides lower quality camera results.
DxOMark Score (Selfie)132Not availableS21 has very good selfie camera performance. 13C 5G has not been tested.
Battery
Capacity4000mAh5000mAh13C 5G has a larger battery, potentially offering longer battery life. S21's is smaller which can mean less battery life.
Charging25W fast charging18W fast chargingS21 charges faster than the 13C 5G. S21 also offers wireless and reverse wireless charging.
Battery FeaturesWireless, Reverse wireless, No charger in-boxReverse chargingS21 has wireless charging capabilities and can act as a power bank, though no charger in-box. 13C 5G does not have wireless charging.
Software
OSAndroid 11 (upgradable to 15)Android 1313C 5G has a more recent OS out of the box, however S21 has a higher maximum supported version.
Connectivity
WiFiWi-Fi 6 (802.11ax)802.11acS21 supports newer WiFi 6 standard for potentially faster speeds and better stability on modern routers. 13C 5G uses older Wi-Fi, which can be slower.
Bluetooth5.05.313C 5G has a newer Bluetooth standard for potentially better energy efficiency and connectivity. S21 uses older standard, but offers a wide range of codecs.
GPSGPS (L1+L5), Galileo (E1+E5a)Basic GPSS21 supports more GPS satellite systems for higher location accuracy. 13C 5G has less accurate GPS.
Storage
Internal128/256GB128/256GBBoth have similar options for storage.
RAM8 GB4/6/8 GBS21 comes with 8GB while 13C can come with 4/6/8 GB - S21 is more consistent in RAM performance.
Expandable StorageNoNoNeither phone offers expandable storage, so storage choice is important.
Audio
QualityDolby Atmos, Noise cancellation mic, Stereo SpeakersStereo SpeakersS21 offers better sound quality with Dolby Atmos and a noise-cancelling microphone. 13C has basic stereo speakers.
Security
FeaturesBasic fingerprintSide-mounted fingerprint13C 5G has a more modern side mounted fingerprint reader. S21 has a less modern fingerprint sensor.
Build Quality
ProtectionCorning Gorilla Glass VictusUnknownS21 has high-end screen protection, increasing durability. Screen protection for 13C is unspecified, which could be less durable.
Sensors
SensorsProximity, Gyroscope, Barometer, Hall, GeomagneticUltrasonic proximity virtualS21 offers a wider range of sensors for more advanced features and enhanced functionality. 13C has a more limited sensor set.

2. Key Differences Analysis

Samsung Galaxy S21 5G Advantages:

  • Superior Display: AMOLED technology with significantly higher resolution, pixel density, brightness, and 120Hz refresh rate provides a much better viewing experience, especially in bright conditions.
  • Significantly Higher Performance: The Exynos 2100 chipset paired with the Mali-G78 GPU provides vastly superior performance for demanding tasks, gaming, and overall responsiveness.
  • Advanced Camera System: Features a more versatile camera setup with a dedicated telephoto lens, a wide angle lens, larger camera sensors, higher resolution selfie camera, and 8K video recording.
  • Better Audio Quality: Dolby Atmos and noise cancellation microphone for more immersive experience.
  • Better Build Quality: Corning Gorilla Glass Victus.
  • More Advanced Features: Wireless charging, reverse wireless charging, barometer, and more GPS satellite system support.

Xiaomi Redmi 13C 5G Advantages:

  • Larger Battery Capacity: The 5000mAh battery potentially offers longer battery life between charges.
  • Newer Bluetooth Version: Bluetooth 5.3 offers potentially better energy efficiency and connectivity.
  • Newer Android Version: Android 13 out of the box.
  • Side-mounted fingerprint sensor: A more modern fingerprint sensor location.

Significant Trade-offs:

  • S21: Has a smaller battery than the 13C and no charger in the box.
  • 13C 5G: Has a significantly lower-quality display, a less powerful processor, a weaker camera, less advanced features and no specified screen protection.

3. User Profiles & Recommendations

Samsung Galaxy S21 5G Ideal Users:

  • Power Users: Those who demand high performance for gaming, multitasking, and resource-intensive applications.
  • Photography Enthusiasts: Users who prioritize camera quality, versatility, and advanced video recording capabilities.
  • Media Consumers: Those who value a high-quality display for enjoying videos, movies, and games.
  • Users who want a Premium experience: People who want the most advanced features that Samsung can offer.

Specific Use Cases for S21:

  • Mobile gaming with high graphics settings.
  • Capturing high-quality photos and videos, including detailed portrait shots and 8K video footage.
  • Enjoying HDR content with vibrant colours and sharp details
  • Using wireless charging for convenience.
  • Demanding mobile applications for productivity or creative work.

Xiaomi Redmi 13C 5G Ideal Users:

  • Budget-Conscious Buyers: Those seeking an affordable 5G phone for basic communication and everyday tasks.
  • Users Prioritizing Battery Life: Those who need a long-lasting battery that can easily last a full day or more.
  • Users wanting a modern design: Those who want side mounted fingerprint reader.
  • Casual Smartphone Users: Those who primarily use their phone for social media, web browsing, and messaging.

Specific Use Cases for 13C 5G:

  • Basic social media usage, web browsing and messaging.
  • Extended use away from a power source with no wireless charging option.
  • Using the phone as a basic media device, where high resolution screen is not important.
  • General day to day use.

Price-to-Value Ratio:

  • S21: Offers higher value for users who prioritize performance, display, and camera quality. It will be significantly more expensive than the 13C, but is a premium device.
  • 13C 5G: Provides decent value for budget-conscious buyers needing a basic 5G smartphone with long battery life, but will not offer a premium experience.

4. Decision Framework

Key Questions for Buyers:

  1. What is your budget and price range? This will be the most important factor in choosing between the two.
  2. What is your primary use case? If your primary use is basic communication and web browsing, the Redmi might suffice. If you intend to play demanding games, watch HDR content, or take high-quality photos, the S21 is better.
  3. How important is display quality? If you prioritize a vibrant, high-resolution display for media consumption, the S21 is far superior, while the 13C has a basic display.

Scenario-Based Recommendations:

  • Scenario 1: High-performance & Camera Focused - If you want to play mobile games, use demanding apps, take detailed photos and 8K videos and enjoy a high-quality display, the Samsung Galaxy S21 5G is the better choice.

  • Scenario 2: Budget-friendly & Long Battery Life - If your budget is limited and you need a basic 5G phone with long battery life for everyday use, the Xiaomi Redmi 13C 5G will be adequate.

  • Scenario 3: A balanced approach: If you can afford the S21 and want a far superior user experience, you should choose the S21. The S21 outperforms the 13C in nearly every area that matters.

What I would choose and why

If I were choosing between these two phones, I would choose the Samsung Galaxy S21 5G.

Here's why:

  • Superior User Experience: The S21 offers a significantly better overall user experience thanks to its far superior display, much better performance, advanced camera, better audio, and more features. The AMOLED display alone is a game-changer, providing a more enjoyable viewing experience and its bright display ensures readability in sunlight.

  • Performance and Versatility: I value performance for multitasking and the ability to play mobile games, and the S21 easily outperforms the 13C in this regard. Additionally, the more advanced camera system of the S21 offers versatility in different shooting scenarios.

  • Longevity: The S21's higher-quality components and wider range of features would mean the phone is more future-proof and will have a longer lifespan. The 13C is built to a much lower price and therefore is more likely to be replaced sooner.

  • The trade offs are less significant: While the S21 has a smaller battery, the increased performance and features far outweigh this negative. The lack of a charger in the box can easily be compensated for and wireless charging and reverse wireless charging is a worthy compromise.

While the Xiaomi Redmi 13C 5G offers a larger battery and a cheaper price, these are not enough to sway me, as the significantly improved user experience with the S21 is well worth the additional cost. I believe the S21 is an objectively better phone and is the right choice for 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.

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