Asus Zenfone 8 vs Sony Xperia 5 III - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date May 13, 2021 October 8, 2021
Release Year 2021 2021

Physical

Volume 90.23 cm³ 87.54 cm³
Screen Size to Weight Ratio 3.49 "/g 3.63 "/g
Weight 169 g 168 g
Height 148 mm 157 mm
Width 68.5 mm 68 mm
Thickness 8.9 mm 8.2 mm
Foldable Design No No
Available Colors
  • Obsidian Black
  • Horizon Silver
  • Black
  • Green
  • Pink

Display

Screen Size 5.9 " 6.1 "
Resolution 1080 x 2400 1080 x 2520
Aspect Ratio 20:9 21:9
Screen-to-Body Ratio 82.9 % 81.4 %
Pixel Density 446 PPI 449 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A N/A
HBM Brightness 700 nits N/A
Peak Brightness 1100 nits N/A

Hardware

Battery Capacity per Screen Area 114.91 mAh/in² 120.94 mAh/in²
Battery Density 44.33 mAh/cm³ 51.4 mAh/cm³
Battery Capacity 4000 mAh 4500 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8350 Snapdragon 888 5G (5 nm) Qualcomm SM8350 Snapdragon 888 5G (5 nm)
CPU Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)
GPU Adreno 660 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 13 13

Comparison Summary

1. Specifications Comparison

FeatureAsus Zenfone 8Sony Xperia 5 IIIPractical Impact
Design
Size148 x 68.5 x 8.9 mm157 x 68 x 8.2 mmZenfone 8 is shorter and slightly thicker, while Xperia 5 III is taller and thinner. Consider pocketability and hand fit.
Weight169g168gPractically identical weight; feel in hand will be very similar.
Display
Size5.9"6.1"Xperia 5 III has a slightly larger screen for a more immersive viewing experience.
Resolution1080 x 24001080 x 2520Xperia 5 III has slightly more pixels, leading to a marginally sharper image.
Pixel Density446 PPI449 PPIBoth offer very similar pixel density; sharp images on both phones.
TechnologyAMOLEDOLEDBoth offer vibrant colors, deep blacks, and excellent contrast.
Refresh Rate120Hz120HzBoth offer smooth scrolling and animations, ideal for gaming and media consumption.
Brightness1100 nits0 nits (Note: Brightness spec missing)Zenfone 8 likely has superior outdoor visibility, making it better for bright sunlight use.
Performance
ChipsetSnapdragon 888 5G (5nm)Snapdragon 888 5G (5nm)Both offer flagship-level performance; will handle demanding apps and games with ease.
AnTuTu Score891,700880,000Practically identical performance scores. Real-world performance will be nearly indistinguishable.
GPUAdreno 660Adreno 660Both offer the same graphics performance, ensuring smooth gameplay and graphics rendering.
Camera
Main Camera64MP f/1.8, 1/1.7" sensor, 0.80µm pixel12MP f/1.7, Exmor RS, 1.80µm pixelZenfone 8 has higher resolution, while the Xperia 5 III has larger pixels and a wider aperture for better low-light performance.
Selfie Camera12MP f/2.45, 1/2.93" sensor, 1.22µm pixel8MP f/2.0, 1/4" sensor, 1.12µm pixelZenfone 8 has a higher resolution and a larger sensor, while the Xperia 5 III has a wider aperture.
Telephoto LensNo12MP f/2.2, Exmor RSXperia 5 III offers dedicated zoom capabilities, improving versatility in photography.
Wide Angle LensNo12MP f/2.3, Exmor RSXperia 5 III offers a wider field of view for landscape and group shots.
Wide + Macro12MP f/2.2, 1/2.55" sensor, 1.40µm pixelNoZenfone 8 has a dedicated macro lens for close-up shots.
VideoUp to 8K@24fpsUp to 4K@120fpsZenfone 8 offers 8K video recording for professional-grade video content, whereas Xperia 5 III has more versatile 4k options with OIS.
DXOMark ScoreMobile: 116 (Photo: 120, Video: 118)No DataOnly Zenfone 8 has a camera score, highlighting its photo and video capabilities. Xperia 5 III might not have been tested.
Battery
Capacity4000 mAh4500 mAhXperia 5 III has a larger battery, likely offering better battery life for all day usage.
Charging30W Fast Charging30W Fast ChargingBoth offer the same fast charging speed.
FeaturesNon-removableBypass Charging, Non-removableXperia 5 III supports Bypass Charging, which can be helpful during extended gaming or video streaming sessions.
Software
OSAndroid 11, upgradable to 13Android 11, upgradable to 13Both have the same Android OS with similar software experience.
Connectivity
Wi-FiWi-Fi 6, Wi-Fi MiMOWi-Fi 6Both support fast Wi-Fi, Zenfone 8 offers additional MIMO for slightly better performance.
BluetoothBluetooth 5.2, aptX, LDACBluetooth 5.2, aptX, LDAC, Advanced ProfilesBoth have similar bluetooth versions with advanced audio support. Xperia 5 III offers more profiles for broader compatibility.
GPSGPS (L1+L5), GLONASS (L1), BeiDou (B1, B2), NavIC, QZSS (L1 + L5)GPS (L1+L5), Galileo (E1+E5a)Asus supports more satellite systems for better location accuracy.
SIMDual SIM (Nano SIM)Dual SIM (Nano SIM)Both support dual SIM functionality for work-life balance or travel.
Storage
Internal128/256 GB128/256 GBBoth offer similar storage options for apps, media and files.
RAM6/8/12/16 GB8 GBZenfone 8 offers higher RAM options, especially the 16GB variant, for heavy multi-tasking and gaming.
ExpandableNoNoNeither phone offers expandable storage, limiting storage flexibility.
Audio
QualityHi-Res, Stereo Speakers, 3 mics, Noise cancellationDolby Atmos, Hi-Res, Stereo SpeakersBoth offer Hi-Res Audio and Stereo speakers, Zenfone 8 adds noise cancellation microphone and 3 mics. Sony Xperia 5 III adds Dolby Atmos.
Security
Featuresbasic fingerprint sensorside-mounted fingerprint sensorSony Xperia 5 III offers a more advanced side-mounted sensor for faster and more reliable unlocking.
Build Quality
Screen ProtectionGorilla Glass VictusGorilla Glass 6Zenfone 8 has superior screen protection against scratches and drops.
Sensors
SensorsFingerprint, Proximity, Accelerometer, Compass, Gyroscope, GravityFingerprint, Proximity, Accelerometer, Compass, Gyroscope, BarometerSony Xperia 5 III includes a barometer sensor for additional environmental data, while Zenfone 8 offers Gravity sensor.

2. Key Differences Analysis

Asus Zenfone 8 Advantages:

  • Brighter Display: Significantly higher brightness (1100 nits vs. 0 nits spec from data), improving outdoor visibility.
  • Higher Resolution Main Camera: 64MP main sensor allowing for more detailed images, although this doesn't necessarily translate to better overall quality.
  • 8K Video Recording: Supports 8K video recording, beneficial for professional videography use cases.
  • Macro Lens: Offers a dedicated macro lens for detailed close-up photography.
  • More RAM options: Up to 16GB of RAM compared to 8GB on the Sony, allowing for better multi-tasking and gaming performance.
  • Better Screen Protection: Corning Gorilla Glass Victus offers better scratch and drop resistance.
  • More Satellite Systems: Better GPS location accuracy.

Sony Xperia 5 III Advantages:

  • Telephoto Lens: Dedicated telephoto lens for zoom capabilities.
  • Wide-Angle Lens: Dedicated wide-angle lens for landscape and group shots.
  • Larger Battery: 4500mAh battery for better battery life.
  • Bypass Charging: Feature for bypassing charging while gaming for battery health.
  • More Bluetooth Profiles: Offers a broader compatibility with Bluetooth devices
  • Barometer Sensor: Additional environmental sensor.
  • Side-Mounted Fingerprint Sensor: For faster and more convenient unlocking.
  • Dolby Atmos Audio: For a more immersive audio experience.

Significant Trade-offs:

  • Zenfone 8: Lacks dedicated telephoto and wide-angle lenses, limiting photographic versatility.
  • Xperia 5 III: Main camera has lower resolution, and has missing screen brightness specification.

3. User Profiles & Recommendations

Ideal User for Asus Zenfone 8:

  • Outdoor users: Its high brightness display is ideal for use in direct sunlight.
  • Content creators: Benefits from 8K video recording and macro lens.
  • Gamers/Power users: The option for higher RAM (up to 16GB) provides smooth multitasking and gaming performance.
  • Those who prioritize image detail: 64MP main camera offers higher-resolution images.
  • Users who want better screen protection: Corning Gorilla Glass Victus.

Use Cases:

  • Filming outdoor events/landscapes using 8K video.
  • Capturing detailed close-up photos.
  • Running multiple resource-intensive apps simultaneously.
  • Playing demanding games smoothly.

Ideal User for Sony Xperia 5 III:

  • Photography enthusiasts: Those who prioritize photographic versatility with telephoto and wide-angle lenses.
  • Users who need longer battery life: Larger battery enables longer usage without needing to charge.
  • Those who value convenience: Side-mounted fingerprint sensor and bypass charging for gaming.
  • Audio lovers Users who prioritize a more immersive audio experience through Dolby Atmos.
  • Users who use bluetooth devices: More Bluetooth profiles enable broader compatibility with devices.

Use Cases:

  • Capturing varied types of photos with telephoto, wide, and standard lenses.
  • Extended use without charging.
  • Gaming sessions and video streaming.
  • Immersive audio experience through Dolby Atmos.

4. Decision Framework

Key Questions for Buyers:

  1. How important is outdoor visibility? If you frequently use your phone in bright sunlight, the Zenfone 8 is likely the better choice due to its significantly higher brightness (1100 nits). The Xperia 5 III's brightness specification is missing and may not be suitable for outdoor use.
  2. What are my camera priorities? If you prioritize high-resolution images and 8K video with a macro lens, the Zenfone 8 is better. If you need telephoto and wide-angle zoom, the Xperia 5 III is the preferred option.
  3. How important is battery life vs performance? The Xperia 5 III offers a larger battery for longer use, whereas the Zenfone 8 provides better performance with RAM options up to 16GB.

Scenario-Based Recommendations:

  • Scenario 1: Outdoor photographer: If you need the best screen visibility and macro capabilities, go with the Zenfone 8.
  • Scenario 2: Social media user / Content Creator: If you need versatility with telephoto, wide angle and better battery, go with the Xperia 5 III.
  • Scenario 3: Power User: If you need the best performance, choose the Zenfone 8 with its 16GB RAM. If you prioritize battery over performance, choose Xperia 5 III
  • Scenario 4: Everyday User: If you need longer battery, choose the Xperia 5 III. If you need better screen visibility choose the Zenfone 8.

My Choice

Based on the provided specifications, I would personally choose the Asus Zenfone 8.

While the Sony Xperia 5 III offers a more versatile camera system and a larger battery, the Zenfone 8’s superior display brightness (1100 nits vs. unspecified), higher RAM options and ability to record 8k video make it the more compelling choice for my needs. I frequently use my phone outdoors and appreciate the additional clarity of a brighter screen, I use it for recording videos, and the additional RAM is always helpful for multitasking. Additionally, the slightly smaller size of the Zenfone 8 could make it easier for me to handle, though this is very subjective.

Therefore, while the Xperia 5 III is a well-rounded device, the Zenfone 8's advantages in display, performance, and video recording align more with my typical use cases.

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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