Asus Zenfone 8 vs Xiaomi Poco X3 GT - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date May 13, 2021 August 19, 2021
Release Year 2021 2021

Physical

Volume 90.23 cm³ 110.31 cm³
Screen Size to Weight Ratio 3.49 "/g 3.42 "/g
Weight 169 g 193 g
Height 148 mm 163.3 mm
Width 68.5 mm 75.9 mm
Thickness 8.9 mm 8.9 mm
Foldable Design No No
Available Colors
  • Obsidian Black
  • Horizon Silver
  • Cloud White
  • Stargaze Black
  • Wave Blue

Display

Screen Size 5.9 " 6.6 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 82.9 % 84.9 %
Pixel Density 446 PPI 399 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A 450 nits
HBM Brightness 700 nits N/A
Peak Brightness 1100 nits N/A

Hardware

Battery Capacity per Screen Area 114.91 mAh/in² 114.78 mAh/in²
Battery Density 44.33 mAh/cm³ 45.33 mAh/cm³
Battery Capacity 4000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8350 Snapdragon 888 5G (5 nm) Mediatek Dimensity 1100 (6 nm)
CPU Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) Octa-core (4x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU Adreno 660 Mali-G77 MC9

Connectivity

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

Software

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

Comparison Summary

1. Specifications Comparison

Here's a detailed comparison of the Asus Zenfone 8 and Xiaomi Poco X3 GT, focusing on practical implications:

FeatureAsus Zenfone 8Xiaomi Poco X3 GTPractical Impact
Design
Dimensions148 x 68.5 x 8.9 mm163.3 x 75.9 x 8.9 mmZenfone 8 is significantly smaller and more pocketable. X3 GT is larger, making it less convenient for one-handed use but offers more screen.
Weight169g193gZenfone 8 is lighter and more comfortable for extended periods. X3 GT is noticeably heavier.
Display
Size5.9"6.6"X3 GT provides a more immersive viewing experience due to its larger screen. Zenfone 8 is more compact, suitable for one-handed usage.
Resolution1080x24001080x2400Both offer the same level of sharpness.
Pixel Density446 ppi399 ppiZenfone 8's display is slightly sharper.
TechnologyAMOLEDIPS LCDZenfone 8 offers better contrast, deeper blacks, more vibrant colors, and superior power efficiency, especially with dark mode.
Refresh Rate120Hz120HzBoth offer smooth scrolling and animations.
Brightness1100 nits0 nitsZenfone 8 is significantly brighter, offering much better visibility in direct sunlight. This makes a huge practical difference in daily usage.
Performance
ChipsetSnapdragon 888 5G (5 nm)Dimensity 1100 (6 nm)Zenfone 8 offers better overall performance, especially in demanding games and apps.
AnTuTu Score891,700745,283Zenfone 8 is noticeably faster based on benchmark scores.
GPUAdreno 660Mali-G77 MC9Zenfone 8 has better GPU for graphics-intensive tasks, but both are capable of smooth gaming.
Battery
Capacity4000 mAh5000 mAhX3 GT will likely offer a longer battery life, potentially lasting a full day or longer for most users.
Charging30W fast charging67W fast chargingX3 GT charges much faster, significantly reducing downtime.
Camera
Standard Camera64MP, f/1.8, 1/1.7" sensor64MP, f/1.79, 1/2" sensorZenfone 8's larger sensor likely captures more light, resulting in slightly better image quality, especially in low light, but the difference can be minimal
Selfie Camera12MP, f/2.45, 1/2.93" sensor16MP, f/2.45X3 GT's front camera has higher resolution for sharper selfies, but the difference is not significant
Wide + Macro12MP, f/2.2, 1/2.55" sensorNot PresentZenfone 8 has an extra lens for wide-angle and macro photos, enhancing its versatility.
VideoUp to 8K, various HDR/EIS optionsUp to 4KZenfone 8 offers higher video resolution with more advanced stabilization, catering to users who need high-quality video recording.
Video FeaturesEIS, OIS, HDRUltra stable videoZenfone 8 has both electronic and optical stabilization for video, and full HDR options at all resolutions. X3 GT only has electronic.
DxoMark116 (Mobile), 120 (Photo), 118 (Video)Not TestedZenfone 8 is the more tested and rated camera.
Camera FeaturesOIS, PDAF, Dual cameraTriple camera, Night ModeZenfone 8 has OIS, a very important feature for photos and videos. X3 GT has Night Mode and a triple camera system, allowing for more versatility.
Software
OSAndroid 11 (Upgradable to 13)Android 11 (No official max version)Zenfone 8 offers a more modern and supported OS.
Connectivity
Wi-FiWi-Fi 6 with MiMOWi-Fi 6Zenfone 8 may provide slightly better Wi-Fi performance with MIMO feature.
Bluetooth5.2 LE, AVRCP, HID, OPP, SBC, AAC, APT-x, LDAC5.2 LE, A2DP, AAC, APT-x, LDACZenfone 8 offers more bluetooth profiles.
GPSMore Satellite SystemsLess Satellite SystemsZenfone 8 can provide slightly better location accuracy.
Storage
Internal128/256 GB128/256 GBBoth phones offer similar storage options, but you will need to buy the correct configuration of your needs beforehand.
RAM6/8/12/16 GB8 GBZenfone 8 can have significantly more RAM, beneficial for heavy multitasking and gaming.
ExpandableNoNoNeither phone has expandable storage, so plan your storage use ahead.
Audio
QualityHi-Res Audio, 3 mics, Noise CancelDolby Atmos, Hi-Res Audio, 2 micsZenfone 8 has a slightly more complete audio setup with better voice capture.
Security
FeaturesBasic fingerprint sensorSide-mounted fingerprint sensorX3 GT offers more advanced fingerprint unlock and better ergonomics.
Build Quality
ProtectionGorilla Glass VictusGorilla Glass VictusBoth phones offer similar levels of screen scratch and damage protection.
SensorsProximity, Gyroscope, Compass, Accelerometer, Gravity, HallUltrasonic Proximity Virtual, Gyroscope, Compass, AccelerometerBoth offer the main sensors but have different proximity sensor types.

2. Key Differences Analysis

Asus Zenfone 8 Advantages:

  • Superior Display: AMOLED panel with higher brightness (1100 nits), deeper blacks, and better color accuracy, making it significantly better for outdoor visibility and media consumption.
  • More Powerful Performance: Snapdragon 888 chipset and higher benchmark scores, offering superior performance in demanding apps and games.
  • Higher Video Recording Capabilities: 8K video recording and better video stabilization, catering to users who need high-quality video recording.
  • More RAM options Up to 16GB RAM, better for heavy multi-tasking.
  • More Advanced Audio System: Noise-canceling microphones with 3 microphones in total, offering clearer audio recordings.
  • More Advanced GPS: Supports more satellite systems for improved location accuracy.
  • Optical Image Stabilization (OIS): A key feature for sharper photos and smoother video.

Xiaomi Poco X3 GT Advantages:

  • Larger Display: 6.6-inch screen provides a more immersive viewing experience, suitable for media consumption.
  • Larger Battery: 5000 mAh battery offers significantly longer battery life, reducing the need for frequent charging.
  • Faster Charging: 67W fast charging allows for significantly shorter charging times.
  • More Modern Fingerprint Sensor: Side-mounted sensor is often preferred for ergonomics.
  • Higher Resolution Front Camera For slightly better selfies.
  • Ultra Stable Video for video recording.

Trade-offs:

  • Zenfone 8: Smaller screen and battery, potentially less ideal for users who prefer large screens or extended battery life. The premium features come at a cost.
  • Poco X3 GT: Inferior display quality, less powerful chipset, lower camera quality, and a larger footprint.

3. User Profiles & Recommendations

Asus Zenfone 8 is ideal for:

  • Power Users & Gamers: Its powerful chipset and ample RAM ensure smooth performance for demanding games and multitasking.
  • Media Enthusiasts: The superior AMOLED display and better video capabilities enhance the media consumption experience.
  • Photography Buffs: With it's OIS and higher video quality, users can rely on it for better photos and videos.
  • Users Prioritizing Portability: Its compact size makes it convenient for one-handed use and portability.
  • Users needing advanced connectivity: Better GPS for navigating, better Bluetooth for wireless audio devices.

Specific Use Cases for Zenfone 8:

  • Playing high-end games like Genshin Impact or Call of Duty Mobile with high settings.
  • Watching HDR content on platforms like Netflix and YouTube in very bright outdoor conditions.
  • Capturing and editing high-resolution photos and videos, including 8K footage.
  • Recording high-quality voice memos or audio while in noisy environments.
  • Navigating in areas with poor signal coverage.

Xiaomi Poco X3 GT is ideal for:

  • Users Prioritizing Battery Life: The larger battery and faster charging are suitable for users who need all-day performance and reduced downtime.
  • Media Consumers: The large display enhances the experience for watching videos and playing games.
  • Budget-Conscious Buyers: It offers a good balance of features and performance at a competitive price.
  • Casual Gamers: The chipset is capable for many modern games, but not at the highest settings.

Specific Use Cases for Poco X3 GT:

  • Watching movies and TV shows on long commutes or travels.
  • Playing mobile games with slightly lower graphic settings for several hours without needing to recharge.
  • Taking standard photos with slightly better selfie and using it for basic video.
  • Users who need a phone that doesn't require a daily charging.

Price-to-Value:

  • The Zenfone 8, being a more premium device, will likely cost more. It offers superior features, but it has a smaller battery and screen.
  • The Poco X3 GT offers a good price-to-performance ratio, especially if you value battery life and a larger screen over premium display and camera features.

4. Decision Framework

Key Questions for Buyers:

  1. What is your priority: display quality and performance, or battery life and screen size? If you prioritize image quality and raw power, the Zenfone 8 is the best. If you value having the largest screen with a long-lasting battery, the Poco X3 GT is the better choice.
  2. How important is a premium camera to you? The Zenfone 8 has better video recording quality, optical image stabilization, and additional features. If photography is a key requirement, the Zenfone 8 is better. Otherwise, the Poco X3 GT is fine.
  3. Are you okay with a smaller phone? The Zenfone 8 has a small form factor, making it convenient to carry. The Poco X3 GT is slightly bigger and not as good for one-hand usage.

Scenario-Based Recommendations:

  • Scenario 1: Heavy Gaming & Media Consumption: If gaming performance, best display, and video recording quality are your highest priorities, the Asus Zenfone 8 is the better choice, despite the smaller battery.
  • Scenario 2: All-Day Battery & Immersive Display: If you need a phone with a large screen, longer battery life, and faster charging, the Xiaomi Poco X3 GT is more suitable.
  • Scenario 3: Casual Usage with Good Performance: If you want a good all-around phone at a reasonable price with a larger screen, the Xiaomi Poco X3 GT is the better value option.
  • Scenario 4: Photography and videography: The Asus Zenfone 8 is the more capable device with OIS, 8K video, and a better rated camera.

My Choice

If I were choosing between these two phones, I would personally pick the Asus Zenfone 8. Although the smaller screen and battery are a slight drawback, the superior AMOLED display with high brightness and HDR, combined with the faster processor and better camera quality make it the clear winner for me.

I value having the best visual experience and performance for my mobile devices, and the Zenfone 8 offers a premium feel in a compact form factor, which I enjoy. Additionally, the improved audio capture features and better GPS would be a plus in daily use. While the Poco X3 GT offers excellent value and battery life, the Zenfone 8's superior display and raw performance make it the more compelling option for my 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
  • Digital media communication
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Bridging technical complexity with engaging, accessible narratives.