Xiaomi Redmi 9C vs Sony Xperia 5 III - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date August 12, 2020 October 8, 2021
Release Year 2020 2021

Physical

Volume 114.28 cm³ 87.54 cm³
Screen Size to Weight Ratio 3.33 "/g 3.63 "/g
Weight 196 g 168 g
Height 164.9 mm 157 mm
Width 77 mm 68 mm
Thickness 9 mm 8.2 mm
Foldable Design No No
Available Colors
  • Midnight Gray
  • Sunrise Orange
  • Twilight Blue
  • Black
  • Green
  • Pink

Display

Screen Size 6.53 " 6.1 "
Resolution 720 x 1600 1080 x 2520
Aspect Ratio 20:9 21:9
Screen-to-Body Ratio 81.1 % 81.4 %
Pixel Density 269 PPI 449 PPI
Refresh Rate N/A 120 Hz
Typical Brightness 400 nits N/A
HBM Brightness N/A N/A
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 117.26 mAh/in² 120.94 mAh/in²
Battery Density 43.75 mAh/cm³ 51.4 mAh/cm³
Battery Capacity 5000 mAh 4500 mAh
NFC Support No Yes
Chipset Mediatek MT6765G Helio G35 (12 nm) Qualcomm SM8350 Snapdragon 888 5G (5 nm)
CPU Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)
GPU PowerVR GE8320 Adreno 660

Connectivity

USB Version 2.0 3.1
OTG Support 1 1
DisplayPort
DisplayPort Version N/A N/A
USB Features microUSB 2.0, OTG USB Type-C 3.1, OTG, Video Output

Software

Operating System Android Android
Initial OS Version 10 11
Maximum OS Version 13

Comparison Summary

1. Specifications Comparison

Here's a detailed comparison of the Xiaomi Redmi 9C and Sony Xperia 5 III, focusing on the practical impact of each specification:

FeatureXiaomi Redmi 9CSony Xperia 5 IIIPractical Impact
Design
Dimensions164.9 × 77 × 9 mm157 × 68 × 8.2 mmThe Xperia 5 III is noticeably smaller and easier to handle with one hand. The Redmi 9C is larger and may be less pocketable.
Weight196g168gThe Xperia 5 III is lighter, making it more comfortable to hold for extended periods.
Build QualityUnknown screen protectionCorning Gorilla Glass 6The Xperia 5 III has better screen protection, reducing the risk of scratches and cracks.
Display
Size6.53"6.1"The Redmi 9C offers a larger screen for more immersive media consumption. The Xperia 5 III is more compact.
Resolution720x16001080x2520The Xperia 5 III has a much sharper display, resulting in clearer text and images.
Pixel Density (PPI)269449The Xperia 5 III's higher pixel density provides a significantly more detailed and crisp visual experience.
TechnologyIPS LCDOLEDThe Xperia 5 III's OLED display offers superior contrast, deeper blacks, and more vibrant colors.
Refresh Rate60Hz120HzThe Xperia 5 III's 120Hz refresh rate provides smoother scrolling, animations, and gaming experiences.
Brightness0 nits0 nitsBoth phones peak brightness is unknown, and impacts visibility in direct sunlight.
Performance
ChipsetMediatek MT6765G Helio G35 (12 nm)Qualcomm SM8350 Snapdragon 888 5G (5 nm)The Xperia 5 III's Snapdragon 888 offers significantly faster performance for demanding apps, multitasking, and gaming.
AnTuTu Score110,490880,000The Xperia 5 III has vastly superior performance, making it much more responsive and future-proof.
GPUPowerVR GE8320Adreno 660The Xperia 5 III's Adreno 660 provides much better graphics performance for gaming and other graphically intensive tasks.
RAM2 GB/3GB/4GB8 GBThe Xperia 5 III's larger RAM capacity allows for smoother multitasking and running multiple apps simultaneously.
Camera
Main Camera13MP, f/2.212MP, f/1.7, Sony Exmor RS, 1.80 µmThe Xperia 5 III's wider aperture and larger pixel size allow for better low-light performance.
Selfie Camera5MP, f/2.28MP, f/2.0, 1/4", Samsung S5K4H7, 1.12 µmThe Xperia 5 III's selfie camera offers better image quality and low-light performance.
Telephoto LensNo12MP, f/2.2, Sony Exmor RSThe Xperia 5 III provides optical zoom capabilities for better close-up shots.
Wide Angle LensNo12MP, f/2.3, Sony Exmor RSThe Xperia 5 III allows for capturing wider scenes in a single shot.
Portrait Mode (Depth)2MP, f/2.4NoRedmi 9C can take photos with blurred background effect.
Macro Lens2MP, f/2.4NoRedmi 9C can take close-up photos of small subjects.
Video Recording1080p@30fps4K@120fps with HDR, OIS, EISThe Xperia 5 III offers much higher quality video recording with stabilization features for smoother videos.
Camera FeaturesDigital zoom, Triple camera, Autofocus, Touch focus, Manual focus, Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer4K Video, Digital zoom, Optical zoom, Triple camera, Digital image stabilization, Optical Stabilization (OIS), Ultra stable video, Autofocus, Touch focus, Continuous autofocus, Phase detection autofocus (PDAF), Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer, RAWThe Xperia 5 III has more advanced camera features, including optical zoom and stabilization, and 4k video, which results in better overall image and video quality and creative control.
Battery
Capacity5000mAh4500mAhThe Redmi 9C has a larger battery, potentially offering longer battery life.
Charging10W30WThe Xperia 5 III charges much faster, reducing downtime.
FeaturesNon-removableBypass Charging, Non-removableThe Xperia 5 III can bypass charging while gaming to reduce heat generation.
Software
OSAndroid 10Android 11 (upgradable to 13)The Xperia 5 III has a more up-to-date operating system and guaranteed updates.
Connectivity
Wi-Fi802.11b/g/n802.11a/b/g/n/ac/ax (Wi-Fi 6)The Xperia 5 III supports faster and more reliable Wi-Fi connections.
Bluetooth5.05.2The Xperia 5 III has a newer Bluetooth version with improved efficiency and features.
GPSGPS, A-GPS, GLONASS, BeidouGPS, A-GPS, GLONASS, Beidou, QZSS, Galileo, GPS (L1+L5), Galileo (E1+E5a)The Xperia 5 III offers more accurate location tracking with support for more satellite systems.
Storage
Internal32GB/64GB/128GB128GB/256GBThe Xperia 5 III offers more internal storage for apps, photos, and videos.
ExpandableNoNoNeither phone supports expandable storage.
Audio
QualityBasic audio featuresDolby Atmos, Hi-Res Audio, Stereo SpeakersThe Xperia 5 III offers significantly better audio quality for music, movies, and gaming.
Security
FeaturesRear-mounted fingerprint sensorSide-mounted fingerprint sensorThe Xperia 5 III's side-mounted fingerprint sensor is generally more convenient and ergonomic.
Sensors
SensorsBiometric: Fingerprint; Motion: Accelerometer, Magnetometer; Proximity: Ultrasonic proximity virtualBiometric: Fingerprint; Proximity: Proximity; Motion: Accelerometer, Compass, Gyroscope; Environmental: BarometerThe Xperia 5 III provides a more comprehensive set of sensors, including a barometer for environmental data.
## 2. Key Differences Analysis

Xiaomi Redmi 9C Advantages:

  • Larger Battery: The 5000mAh battery provides potentially longer battery life for users who prioritize endurance.
  • Price: Significantly more affordable, making it accessible for budget-conscious consumers.
  • Portrait Mode (Depth) and Macro Lens: Useful for creative photography if the user likes to take those kind of photos.

Sony Xperia 5 III Advantages:

  • Superior Performance: The Snapdragon 888 chipset offers vastly superior performance for demanding tasks, gaming, and multitasking.
  • High-Quality Display: The OLED display with a 120Hz refresh rate provides a much better viewing experience with vibrant colors, deep blacks, and smooth animations.
  • Advanced Camera System: The triple-lens camera system with optical zoom, OIS, and 4K video recording capabilities delivers significantly better image and video quality.
  • Premium Audio: Dolby Atmos, Hi-Res Audio, and stereo speakers offer an immersive and high-fidelity audio experience.
  • Faster Charging: 30W fast charging allows for quicker battery top-ups.
  • More Features: Water resistance, advanced connectivity options, and a more comprehensive set of sensors.

Significant Trade-offs:

  • Redmi 9C: Sacrifices performance, display quality, and camera capabilities for affordability.
  • Xperia 5 III: Higher price point makes it less accessible for budget-conscious consumers, smaller battery (although this is somewhat offset by the more efficient chipset).

3. User Profiles & Recommendations

Xiaomi Redmi 9C:

  • Ideal User: Budget-conscious users, students, or those who need a basic smartphone for everyday tasks like calls, messages, and social media.
  • Use Cases:
    • Basic communication and social media browsing.
    • As a secondary or backup phone.
    • For users who prioritize battery life over performance and features.

Sony Xperia 5 III:

  • Ideal User: Tech enthusiasts, photography lovers, gamers, and those who prioritize performance, display quality, and advanced features.
  • Use Cases:
    • Mobile gaming with demanding graphics.
    • High-quality photography and videography.
    • Immersive media consumption (movies, music, streaming).
    • Professional use requiring fast performance and multitasking.

4. Decision Framework

Here are three key questions for potential buyers to consider:

  1. What is your budget? The Redmi 9C is significantly cheaper.
  2. What are your primary use cases? If you need a phone for demanding tasks like gaming or photography, the Xperia 5 III is the better choice. If you only need a basic phone for everyday tasks, the Redmi 9C may suffice.
  3. How important are display quality and camera performance? The Xperia 5 III offers a vastly superior display and camera system.

Scenario-Based Recommendations:

  • Scenario 1: A student on a tight budget who needs a phone for basic communication and social media: Xiaomi Redmi 9C.
  • Scenario 2: A photography enthusiast who wants a phone with excellent camera capabilities: Sony Xperia 5 III.
  • Scenario 3: A mobile gamer who needs a phone with smooth performance and a high-quality display: Sony Xperia 5 III.
  • Scenario 4: Someone looking for a secondary phone with long battery life for travel or emergencies: Xiaomi Redmi 9C.

My Choice

If I were to choose between these two phones, I would pick the Sony Xperia 5 III. Although it comes with a higher price tag, the overall package offers a significantly better user experience. The superior performance, thanks to the Snapdragon 888, ensures that the phone remains responsive and capable for years to come. The OLED display with a 120Hz refresh rate provides a visually stunning experience, making everything from browsing the web to watching videos more enjoyable. Additionally, the advanced camera system is a major draw, as it allows me to capture high-quality photos and videos in various scenarios. While the Redmi 9C has its merits, particularly its larger battery and lower price, the Xperia 5 III's premium features and performance make it the clear winner for my personal needs.

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.