Xiaomi Poco X3 Pro vs Sony Xperia 5 III - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date March 24, 2021 October 8, 2021
Release Year 2021 2021

Physical

Volume 119.33 cm³ 87.54 cm³
Screen Size to Weight Ratio 3.1 "/g 3.63 "/g
Weight 215 g 168 g
Height 165.3 mm 157 mm
Width 76.8 mm 68 mm
Thickness 9.4 mm 8.2 mm
Foldable Design No No
Available Colors
  • Phantom Black
  • Frost Blue
  • Metal Bronze
  • Black
  • Green
  • Pink

Display

Screen Size 6.67 " 6.1 "
Resolution 1080 x 2400 1080 x 2520
Aspect Ratio 20:9 21:9
Screen-to-Body Ratio 84.6 % 81.4 %
Pixel Density 395 PPI 449 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness 450 nits N/A
HBM Brightness N/A N/A
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 115.98 mAh/in² 120.94 mAh/in²
Battery Density 43.24 mAh/cm³ 51.4 mAh/cm³
Battery Capacity 5160 mAh 4500 mAh
NFC Support Yes Yes
Chipset Qualcomm Snapdragon 860 (7 nm) Qualcomm SM8350 Snapdragon 888 5G (5 nm)
CPU Octa-core (1x2.96 GHz Kryo 485 Gold & 3x2.42 GHz Kryo 485 Gold & 4x1.78 GHz Kryo 485 Silver) Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)
GPU Adreno 640 Adreno 660

Connectivity

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

Software

Operating System Android Android
Initial OS Version 11 11
Maximum OS Version 12 13

Comparison Summary

1. Specifications Comparison

FeatureXiaomi Poco X3 ProSony Xperia 5 IIIPractical Impact
Design
Dimensions165.3 × 76.8 × 9.4 mm157 × 68 × 8.2 mmPoco X3 Pro is larger and bulkier, the Xperia 5 III is more compact and pocketable.
Weight215g168gXperia 5 III is noticeably lighter, making it more comfortable for extended use and one-handed operation.
Display
Size6.67"6.1"Poco X3 Pro offers a larger viewing area, better for media consumption. Xperia 5 III is more compact.
Resolution1080 x 24001080 x 2520Xperia 5 III has slightly higher pixel density, resulting in a sharper image.
PPI395449Xperia 5 III provides noticeably sharper text and images.
TechnologyIPS LCDOLEDXperia 5 III offers better color accuracy, deeper blacks, and higher contrast, providing a more vibrant display.
Refresh Rate120Hz120HzBoth offer smooth scrolling and gaming experiences.
Brightness0 nits0 nitsNote: Brightness information is missing, making it difficult to compare under bright sunlight.
Performance
ChipsetQualcomm Snapdragon 860 (7 nm)Qualcomm Snapdragon 888 5G (5 nm)Xperia 5 III offers significantly faster processing speeds for demanding tasks like gaming and video editing.
AnTuTu Score627,869880,000Xperia 5 III provides smoother performance, faster app loading and overall snappier experience.
GPUAdreno 640Adreno 660Xperia 5 III has a more powerful GPU for graphically intensive tasks and gaming.
Battery
Capacity5160mAh4500mAhPoco X3 Pro likely offers longer battery life for all-day usage.
Charging33W Fast Charging30W Fast ChargingPoco X3 Pro charges marginally faster.
FeaturesNon-removableBypass Charging, Non-removableXperia 5 III allows users to bypass battery charging, suitable for gaming while plugged in.
Camera
Standard Camera48MP, f/1.79, 1/2", 0.8µm12MP, f/1.7, 1.8µmPoco X3 Pro has higher resolution but may not equate to better image quality. Xperia 5 III has larger pixels for better low-light performance.
Selfie Camera20MP, f/2.2, 1/3.4", 0.8µm8MP, f/2.0, 1/4", 1.12µmPoco X3 Pro has higher resolution, but Xperia 5 III might offer better low-light selfies due to wider aperture and larger pixels.
Telephoto LensN/A12MP, f/2.2Xperia 5 III has a telephoto lens, offering optical zoom for better quality at a distance, not available in the Poco X3 Pro.
Wide Angle Lens8MP, f/2.2, 1/4", 1.12µm12MP, f/2.3Xperia 5 III captures higher resolution wider shots. Poco X3 Pro has a slightly wider aperture.
Portrait Mode2MP, f/2.4, 1/5", 1.75µmN/APoco X3 Pro has a dedicated depth sensor for portrait photos.
Macro Lens2MP, f/2.4, 1/5", 1.75µmN/APoco X3 Pro offers a dedicated macro lens for detailed close-up shots.
Video4K@30fps, EIS4K@120fps, HDR, OIS, EISXperia 5 III offers significantly more advanced video recording capabilities with HDR, OIS, and higher frame rates.
FeaturesQuadruple Camera, Digital StabilizationTriple Camera, Optical Zoom, OIS, Ultra Stable Video, RAWXperia 5 III has more professional-grade features for advanced photography.
Software
OSAndroid 11 (Upgradable to 12)Android 11 (Upgradable to 13)Xperia 5 III will likely receive longer software support.
Connectivity
Wi-FiWi-Fi 5Wi-Fi 6Xperia 5 III offers faster and more reliable Wi-Fi connections.
Bluetooth5.05.2Xperia 5 III has a newer Bluetooth version for better connectivity and power efficiency.
GPSGPS, A-GPS, GLONASS, Beidou, GalileoGPS, A-GPS, GLONASS, Beidou, QZSS, Galileo, GPS (L1+L5), Galileo (E1+E5a)Xperia 5 III supports more satellite systems for more accurate location tracking.
SIMDual SIM (Nano)Dual SIM (Nano)Both offer dual SIM capabilities.
Storage
Internal128GB/256GB128GB/256GBBoth offer ample storage options, with the same maximum internal storage.
RAM6GB/8GB8GBXperia 5 III has more RAM for smoother multitasking.
ExpandableNoNoNeither offers expandable storage options.
Audio
QualityHi-Res Audio, Stereo SpeakersDolby Atmos, Hi-Res Audio, Stereo SpeakersXperia 5 III has a slight edge with Dolby Atmos for better audio quality and spatial audio.
Security
FeaturesSide-mounted FingerprintSide-mounted FingerprintBoth provide basic biometric security.
Build Quality
ProtectionCorning Gorilla Glass 6Corning Gorilla Glass 6Both have the same level of screen protection.
SensorsBiometric: Fingerprint; Motion: Accelerometer, Compass, Gyroscope; Proximity: Ultrasonic proximity virtualBiometric: Fingerprint; Proximity: Proximity; Motion: Accelerometer, Compass, Gyroscope; Environmental: Barometer, HallXperia 5 III includes additional environmental sensors, while Poco X3 Pro features an ultrasonic proximity sensor.

2. Key Differences Analysis

Xiaomi Poco X3 Pro Advantages:

  • Larger Battery: The 5160mAh battery provides significantly longer battery life, making it ideal for users who prioritize all-day usage.
  • Faster Charging: 33W fast charging allows for slightly quicker replenishment of the battery.
  • Larger Display: The 6.67-inch screen offers a more immersive experience for media consumption and gaming.
  • Lower Price: Typically positioned as a budget-friendly option, it often provides good value for its price.
  • Dedicated Depth/Macro Sensors: Offers dedicated sensors for portrait and macro photography.

Sony Xperia 5 III Advantages:

  • Superior Performance: The Snapdragon 888 chipset provides significantly faster processing and smoother app performance, which is ideal for demanding tasks.
  • Better Display: The OLED panel provides significantly better color accuracy, deeper blacks, higher contrast and overall image quality.
  • Better Camera System: The telephoto lens, wider aperture main camera, optical zoom and video stabilization features provide better image quality and versatility.
  • Premium Build: The compact design and lighter weight make it more premium and ergonomic.
  • More Advanced Features: Includes features like Dolby Atmos, Bypass Charging, Wi-Fi 6, and a more comprehensive set of Bluetooth profiles.
  • Longer Software Support: Expected to receive longer software updates.
  • More Accurate Location Tracking: Supports more satellite systems for more precise GPS.
  • Bypass Charging: Can bypass battery charging for gaming while plugged in.

Trade-offs:

  • The Poco X3 Pro trades superior performance, camera and display quality for a lower price, bigger battery and slightly larger display.
  • The Xperia 5 III provides superior performance, display, camera capabilities and advanced features at a significantly higher cost and slightly smaller screen size, potentially shorter battery life and higher price.

3. User Profiles & Recommendations

Xiaomi Poco X3 Pro Ideal User:

  • Budget-conscious users: Those seeking a powerful smartphone at a more affordable price.
  • Heavy media consumers: People who frequently watch videos, movies or play games and need a large display and large battery.
  • Casual photographers: Users who enjoy taking photos for social media.
  • Gamers on a budget: Users who want to enjoy gaming without breaking the bank.

Use Cases:

  • Long commutes with lots of media consumption and gaming.
  • Casual social media photography and video recording.
  • Budget-conscious users who need a reliable and large device.
  • Long hours away from power source.

Sony Xperia 5 III Ideal User:

  • Performance enthusiasts: Users who demand top-tier performance for gaming and demanding applications.
  • Photography enthusiasts: Individuals who appreciate high-quality photography and videography, especially with zoom functionality.
  • Audiophiles: Users who want high-fidelity audio playback with Dolby Atmos support.
  • Compact phone lovers: People who prefer a more pocketable device with high-end features.
  • Users seeking latest features: Users who want to have all of the most advanced features.

Use Cases:

  • Professional photography and videography needs.
  • Competitive gaming where performance is paramount.
  • High-fidelity audio playback for music and movie enjoyment.
  • Users who prefer compact and premium smartphones.

4. Decision Framework

Key Questions:

  1. What is your budget? The Poco X3 Pro is a budget-friendly option, while the Xperia 5 III is a more premium device.
  2. What is your primary use case? Prioritize battery and screen size (Poco X3 Pro) or performance, camera and display (Xperia 5 III)?
  3. How important are advanced features? Consider if you need features like telephoto lens, OLED display, Dolby Atmos and the latest connectivity tech.

Scenario-Based Recommendations:

  • Scenario 1: Budget gamer needing long battery: Choose the Poco X3 Pro for its great performance for its price, larger battery and bigger screen.
  • Scenario 2: Photography enthusiast and a user who wants great performance: Choose the Xperia 5 III for its versatile camera system, best-in-class performance and high-quality display.
  • Scenario 3: Everyday user who needs long battery and can live with lesser performance and camera capabilities: Choose the Poco X3 Pro for its larger battery and more affordable price.
  • Scenario 4: User who wants the best possible compact experience: Choose the Xperia 5 III for the latest technology, great performance and premium build quality.

My Choice

If I were choosing between these two phones, I would pick the Sony Xperia 5 III. While the Poco X3 Pro presents a compelling value proposition with its larger battery and screen, the Xperia 5 III offers a superior overall experience. The significantly better performance of the Snapdragon 888, combined with the more advanced OLED display, and a much better camera system, particularly with its telephoto lens and video capabilities, make it a more compelling option for me. I prioritize performance, a quality display, and advanced camera features for general use as well as for capturing high quality content, even if it comes at a higher price. The more compact and premium design of the Xperia 5 III is also a major factor that adds to the appeal of this phone.

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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Bridging technical complexity with engaging, accessible narratives.