Asus Zenfone 8 vs Xiaomi 12 - Detailed Phone Comparison

Detailed Comparison

Specification
Xiaomi 12
Xiaomi 12
Xiaomi

General

Launch Date May 13, 2021 December 31, 2021
Release Year 2021 2021

Physical

Volume 90.23 cm³ 87.52 cm³
Screen Size to Weight Ratio 3.49 "/g 3.51 "/g
Weight 169 g 179 g
Height 148 mm 152.7 mm
Width 68.5 mm 69.9 mm
Thickness 8.9 mm 8.2 mm
Foldable Design No No
Available Colors
  • Obsidian Black
  • Horizon Silver
  • Blue
  • Green
  • Purple
  • Gray

Display

Screen Size 5.9 " 6.28 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 82.9 % 89.2 %
Pixel Density 446 PPI 419 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A N/A
HBM Brightness 700 nits N/A
Peak Brightness 1100 nits 1100 nits

Hardware

Battery Capacity per Screen Area 114.91 mAh/in² 114.10 mAh/in²
Battery Density 44.33 mAh/cm³ 51.41 mAh/cm³
Battery Capacity 4000 mAh 4500 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8350 Snapdragon 888 5G (5 nm) Qualcomm SM8450 Snapdragon 8 Gen 1 (4 nm)
CPU Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) Octa-core (1x3.00 GHz Cortex-X2 & 3x2.50 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510)
GPU Adreno 660 Adreno 730

Connectivity

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

Software

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

Comparison Summary

Smartphone Comparison: Asus Zenfone 8 vs. Xiaomi 12

1. Specifications Comparison

FeatureAsus Zenfone 8Xiaomi 12Practical Impact
Design
Dimensions148 × 68.5 × 8.9 mm152.7 × 69.9 × 8.2 mmXiaomi 12 is slightly taller and wider, Zenfone 8 is thicker. Zenfone 8 might feel more compact, while Xiaomi 12 offers a bit more screen.
Weight169g179gZenfone 8 is slightly lighter; noticeable over extended use. Xiaomi 12 is heavier by 10g.
Display
Size5.9"6.28"Xiaomi 12 has a larger screen, better for media consumption, gaming, and reading. The difference of 0.38" is not too huge but noticeable.
Resolution1080 x 24001080 x 2400Both offer the same level of detail; sharpness is similar.
Pixel Density446 PPI419 PPIZenfone 8 has slightly sharper text and images; noticeable for users with keen eyesight.
TechnologyAMOLEDAMOLEDBoth provide vibrant colors, deep blacks, and good viewing angles.
Refresh Rate120Hz120HzBoth offer smooth scrolling and animations.
Brightness1100 nits1100 nitsBoth offer good visibility in bright sunlight.
Performance
ChipsetSnapdragon 888 (5 nm)Snapdragon 8 Gen 1 (4 nm)Xiaomi 12's newer chipset provides slightly faster app loading, smoother UI, and better performance in demanding tasks and games.
Antutu Score891,7001,150,831Xiaomi 12 is significantly faster; this translates into a more fluid user experience, better gaming, and quicker processing.
GPUAdreno 660Adreno 730Xiaomi 12 has a better GPU, leading to better gaming performance and graphics rendering.
Camera
Main Camera64MP, f/1.8, 1/1.7", 0.8µm50MP, f/1.88, 1/1.56", 1.0µmZenfone 8 has a higher resolution. Xiaomi 12 has a larger sensor size for better low-light performance. Pixel size is larger in the Xiaomi.
Selfie Camera12MP, f/2.45, 1/2.93", 1.22µm32MP, 1/3.14", 0.7µmXiaomi 12 has much higher resolution and captures more details. Zenfone 8 has a larger pixel size.
Wide Angle Lens12MP, f/2.2, 1/2.55", 1.4µm (Wide Angle + Macro)13MP, f/2.4, (dedicated)Zenfone 8 combines the wide and macro, while the Xiaomi 12 has dedicated lenses; different use case approaches.
Macro LensN/A5MP, f/2.4, (dedicated)Xiaomi 12 has a dedicated macro lens for better close-up shots while Asus Zenfone 8 uses wide angle for macro shots.
VideoUp to 8K@120fps, HDR, EISUp to 8K@120fps, HDR, EISBoth offer top video capabilities, but Xiaomi 12 supports up to 1920fps for slow motion.
DXOMarkMobile: 116, Photo: 120, Video: 118Mobile: 113, Photo: 118, Video: 121Zenfone 8 is slightly better in still images, while Xiaomi 12 offers slightly superior video quality.
Camera FeaturesDual Camera, OISTriple Camera, OIS, Ultra Stable Video, Night ModeXiaomi 12 has more versatile camera features, including a dedicated night mode and stabilization.
Battery
Capacity4000mAh4500mAhXiaomi 12 has a bigger battery, offering longer usage between charges.
Charging30W Fast Charging67W Fast ChargingXiaomi 12 charges much faster, reducing downtime.
FeaturesNon-removableReverse Charging, 50W Wireless, 10W Reverse, Non-removableXiaomi 12 has wireless charging and reverse charging, making it more versatile.
Software
OSAndroid 11 (upgradable to 13)Android 12 (Max Version Unknown)Xiaomi 12 is newer and has a more recent Android version out of the box. Long-term software support unclear for Xiaomi.
Connectivity
WiFiWiFi 6WiFi 6Both phones support the latest WiFi standards.
Bluetooth5.2 with multiple codecs5.2 with multiple codecsBoth phones offer good Bluetooth connectivity with a range of audio codecs, though with minor feature differences.
GPSGPS, A-GPS, GLONASS, Beidou, QZSS, Galileo, GPS (L1+L5), GLONASS (L1), BeiDou (B1), Galileo (E1+E5a), BeiDou (B2), NavIC System, QZSS (L1 + L5)A-GPS, GLONASS, Beidou, QZSS, GPS (L1+L5), GLONASS (L1), BeiDou (B1), Galileo (E1+E5a), BeiDou (B2), NavIC System, QZSS (L1 + L5)Zenfone 8 has more satellite systems for possibly improved GPS accuracy.
SIMDual SIM NanoDual SIM NanoBoth phones offer the same Dual Sim Support.
Storage
Internal128/256 GB128/256 GBBoth offer similar storage options; sufficient for most users.
RAM6/8/12/16 GB8/12 GBZenfone 8 has more potential RAM, beneficial for intensive multitasking and high-end gaming.
ExpandableNoNoNeither supports external storage.
Audio
QualityHi-Res Audio, Noise Cancellation Mic, 3 MicrophonesDolby Atmos, Hi-Res Audio, 2 MicrophonesZenfone 8 has better features for clearer calls. Xiaomi 12 has Dolby Atmos for immersive audio experience.
Security
FeaturesBasic Fingerprint SensorBasic Fingerprint SensorBoth offer basic biometric security.
Build Quality
Screen ProtectionCorning Gorilla Glass VictusCorning Gorilla Glass VictusBoth offer top-tier screen protection.
SensorsFingerprint, Proximity, Accelerometer, Compass, GyroscopeFingerprint, Accelerometer, Compass, Gyroscope, Ultrasonic Proximity, RGBBoth feature comprehensive sensor suites for different use cases, including gaming and AR/VR.

2. Key Differences Analysis

Asus Zenfone 8 Advantages:

  • More compact design: Easier to handle with one hand.
  • Slightly sharper display: Higher pixel density for crisper visuals.
  • Potentially higher RAM: Up to 16GB, which is beneficial for heavy multitasking.
  • More microphones: Potentially better audio capture and call quality.
  • Slightly better Photo scores in DXOMark: May capture slightly better images.
  • Slightly better GPS accuracy: Includes more satellite systems.

Xiaomi 12 Advantages:

  • Newer, more powerful chipset: Better performance for gaming and demanding apps.
  • Larger display: Better for media consumption.
  • Larger battery: Longer battery life.
  • Faster charging: Significantly quicker to recharge.
  • Wireless and reverse charging: More versatile charging options.
  • Better video score on DXOMark: May capture slightly better videos.
  • Dedicated wide angle and macro lens: More versatile photography options.
  • Night Mode: Better low-light photography.

Trade-offs:

  • Zenfone 8: Sacrifices larger screen, battery capacity, and modern charging speeds for compactness and potentially more RAM.
  • Xiaomi 12: Sacrifices some compactness and slightly less PPI, but gains performance, better battery, and more versatile features.

3. User Profiles & Recommendations

Asus Zenfone 8 is ideal for:

  • Users who prioritize a compact form factor and one-handed use.
  • Gamers needing the potentially higher RAM capacity.
  • Users who need good audio and microphone quality for calls and recording.
  • Users who prioritize still images over video quality in mobile photography.

Use cases for Asus Zenfone 8:

  • Commuting and daily use where one-handed operation is important.
  • Gaming on-the-go where high RAM is a priority.
  • Conference calls and voice recordings where good audio capture is needed.
  • Casual photography.

Xiaomi 12 is ideal for:

  • Users who prioritize performance and speed.
  • Users who consume a lot of media and need a larger screen.
  • Users who need longer battery life and faster charging.
  • Users who want versatile camera options including night mode and macro capabilities.

Use cases for Xiaomi 12:

  • Gaming where performance is key.
  • Watching videos and movies.
  • Photography and videography using the main, ultra-wide and macro lenses, along with night mode.
  • Long days without access to charging.

Price-to-Value Ratio:

  • The Xiaomi 12, being newer, will likely be at a higher price point on the used market and is also likely more expensive to purchase brand new.
  • The Asus Zenfone 8, being older, can offer significant value on the used market, but the availability of parts may be reduced.

4. Decision Framework

Key Questions for Buyers:

  1. What is the most important factor: compact design or screen size? (This will guide whether the user values the pocketability of the Zenfone 8 or the larger screen of the Xiaomi 12)
  2. Is battery life or fast charging more critical? (This helps determine if the Xiaomi 12's larger battery and faster charging are needed)
  3. Do you prioritize raw power or a good balance of features? (This highlights whether the user needs the performance of the Snapdragon Gen 1 in the Xiaomi 12, or if the Snapdragon 888 is good enough)

Scenario-Based Recommendations:

  • Scenario 1: Heavy Mobile Gamer: Xiaomi 12 is recommended for superior processing power, a better GPU, and faster charging.
  • Scenario 2: Casual User/Daily Commuter: Asus Zenfone 8 is recommended for compact design and ease of one-handed use.
  • Scenario 3: Media Consumer: Xiaomi 12 is recommended for its larger display and superior battery life.
  • Scenario 4: Photography Enthusiast: Xiaomi 12 is recommended for a wider array of camera lenses.

My Choice

I would choose the Xiaomi 12. While I appreciate the compact form factor of the Asus Zenfone 8, the Xiaomi 12's advantages in performance, battery life, and camera versatility are more important to me. The larger screen is also a plus for my media consumption habits. Although the Zenfone 8 has potentially more RAM, the Snapdragon 8 Gen 1 in the Xiaomi 12 is a more significant upgrade for my use cases. The 67W fast charging and 50W wireless charging is also a huge benefit. While I am fine with a slightly larger device, the performance gains and features on the Xiaomi 12 make it the better pick 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.

Key Strengths:

  • Mobile technology analysis
  • Digital media communication
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Bridging technical complexity with engaging, accessible narratives.