Xiaomi Poco X3 Pro vs Xiaomi 12X - Detailed Phone Comparison

Detailed Comparison

Specification
Xiaomi 12X
Xiaomi 12X
Xiaomi

General

Launch Date March 24, 2021 December 31, 2021
Release Year 2021 2021

Physical

Volume 119.33 cm³ 87.52 cm³
Screen Size to Weight Ratio 3.1 "/g 3.57 "/g
Weight 215 g 176 g
Height 165.3 mm 152.7 mm
Width 76.8 mm 69.9 mm
Thickness 9.4 mm 8.2 mm
Foldable Design No No
Available Colors
  • Phantom Black
  • Frost Blue
  • Metal Bronze
  • Blue
  • Purple
  • Gray

Display

Screen Size 6.67 " 6.28 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 84.6 % 89.2 %
Pixel Density 395 PPI 419 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness 450 nits N/A
HBM Brightness N/A N/A
Peak Brightness N/A 1100 nits

Hardware

Battery Capacity per Screen Area 115.98 mAh/in² 114.10 mAh/in²
Battery Density 43.24 mAh/cm³ 51.41 mAh/cm³
Battery Capacity 5160 mAh 4500 mAh
NFC Support Yes Yes
Chipset Qualcomm Snapdragon 860 (7 nm) Qualcomm SM8250-AC Snapdragon 870 5G (7 nm)
CPU Octa-core (1x2.96 GHz Kryo 485 Gold & 3x2.42 GHz Kryo 485 Gold & 4x1.78 GHz Kryo 485 Silver) Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)
GPU Adreno 640 Adreno 650

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 11
Maximum OS Version 12

Comparison Summary

1. Specifications Comparison

FeatureXiaomi Poco X3 ProXiaomi 12XPractical Impact
Design
Dimensions165.3 × 76.8 × 9.4 mm152.7 × 69.9 × 8.2 mmPoco X3 Pro is larger and bulkier; 12X is more compact and easier to handle one-handed.
Weight215g176g12X is significantly lighter, more comfortable for long use; Poco X3 Pro feels more substantial.
Display
Size6.67"6.28"Poco X3 Pro offers more screen real estate, better for media consumption; 12X is more pocketable.
Resolution1080x24001080x2400Both have the same level of sharpness, though the 12X is slightly sharper due to its smaller screen.
PPI39541912X has a slightly sharper display due to its higher pixel density; difference is usually not noticeable.
TechnologyIPS LCDAMOLED12X provides superior contrast, deeper blacks, and more vibrant colors; better for dark mode and HDR content.
Refresh Rate120Hz120HzBoth offer smooth scrolling and animations.
Brightness0 nits1100 nits12X display is far more visible in bright sunlight, ideal for outdoor use.
Performance
ChipsetSnapdragon 860 (7 nm)Snapdragon 870 5G (7 nm)12X has a more powerful chipset, offering better overall performance, faster app loading.
AnTuTu Score627,869815,21012X has significantly better benchmark scores, showing improved real world performance.
GPUAdreno 640Adreno 65012X offers superior graphics performance; better for gaming and graphically intensive apps.
Battery
Capacity5160mAh4500mAhPoco X3 Pro has a larger battery; likely offers longer battery life under similar usage.
Charging33W fast charging67W fast charging12X charges significantly faster, reducing downtime.
Camera
Standard Lens48MP, f/1.79, 1/2" sensor50MP, f/1.88, 1/1.56" sensor12X has a larger sensor; likely better low-light performance and detail.
Selfie Lens20MP, f/2.2, 1/3.4" sensor32MP, f/2.45, 1/3" sensor12X has higher resolution, but smaller pixel size for selfie; larger sensor often leads to better low light performance
Wide Angle Lens8MP, f/2.2, 1/4" sensor13MP, f/2.4, 1/3.06" sensor12X has higher resolution, but smaller sensor compared to the main sensor.
Portrait (Depth)2MP, f/2.4, 1/5" sensorNot AvailablePoco X3 Pro has an additional depth sensor, better for portrait effect.
Macro Lens2MP, f/2.4, 1/5" sensor5MP, f/2.412X has a higher resolution macro lens.
Video4K@30fps, EIS8K@24fps, 4K@60fps, EIS, OIS12X offers significantly more advanced video recording with higher resolution and Optical Image Stabilization.
FeaturesQuad camera, Digital ISTriple camera, OIS, Ultra stable video, RAW, Night Mode12X offers more advanced camera features, more video recording modes.
Software
OSAndroid 11 (upgradable to 12)Android 1212X has a newer Android Version; 12X may receive more future software updates.
Connectivity
WiFiWi-Fi 5Wi-Fi 612X supports faster and more efficient Wi-Fi.
BluetoothBluetooth 5.0Bluetooth 5.112X has slightly newer Bluetooth; offers better efficiency.
GPSStandard GPS, GalileoAdvanced GPS12X offers more accurate location tracking with more satellite systems.
Storage
Internal128/256GB128/256GBBoth phones offer the same storage options.
RAM6/8 GB8/12 GB12X offers more RAM, resulting in better multitasking.
ExpandableNoNoNeither phone supports microSD cards.
Audio
Audio QualityHi-Res Audio, Stereo Sp.Dolby Atmos, Hi-Res Audio, Stereo Sp., 2 mics12X has a slightly better audio experience; immersive sound and voice recording.
Security
FeaturesSide-mounted fingerprintBasic fingerprintPoco X3 Pro's side-mounted sensor is generally faster and more convenient.
Build Quality
Screen ProtectionGorilla Glass 6Gorilla Glass Victus12X offers superior scratch and impact resistance.
SensorsComprehensive sensor suiteComprehensive sensor suiteBoth phones have similar sensor capabilities.
## 2. Key Differences Analysis

Xiaomi Poco X3 Pro Advantages:

  • Larger Battery: 5160mAh vs 4500mAh in the 12X, likely translates to longer battery life, better for users who are not close to a power outlet regularly.
  • Side-Mounted Fingerprint Sensor: Generally faster and more convenient to use compared to basic sensors.
  • More Affordable: Usually positioned at a lower price point.

Practical Implications (Poco X3 Pro):

  • Longer Use Between Charges: Good for travel and situations where charging access is limited.
  • Convenient Unlocking: Side-mounted sensor is easier to reach and quicker to unlock.

Xiaomi 12X Advantages:

  • Superior Display: AMOLED technology with 1100 nits brightness provides a better viewing experience, especially in bright conditions.
  • More Powerful Performance: Snapdragon 870 chipset leads to faster app loading, smoother operation, and better gaming.
  • Faster Charging: 67W fast charging is much faster than 33W, reducing charging time.
  • Better Camera: Higher resolution sensors, 8K recording, and OIS offer superior photo and video quality.
  • More RAM: 8/12GB of RAM improves multitasking.
  • Superior Screen Protection: Gorilla Glass Victus provides better protection from drops and scratches
  • Superior Audio: Dolby Atmos and 2 microphones, provide a better and more immersive audio experience.
  • Newer Connectivity: Wi-Fi 6 and Bluetooth 5.1 provide faster and more efficient connectivity.

Practical Implications (Xiaomi 12X):

  • Vibrant Visuals: AMOLED offers a richer, more immersive display experience, especially for media consumption.
  • Smooth Multitasking: More RAM means less lag and better app switching.
  • Pro-Grade Photos and Videos: OIS, 8K recording, and larger sensors deliver better image and video quality.
  • Quicker Top-Ups: Fast charging allows for more use with shorter charging times.
  • Future-Proofing: Newer connectivity standards and OS version. Significant Trade-offs:

  • Poco X3 Pro: Trades superior display and camera capabilities for a larger battery and lower price

  • Xiaomi 12X: Trades longer battery life for faster charging, more compact design, and premium features at a higher price.

3. User Profiles & Recommendations

Xiaomi Poco X3 Pro Ideal User:

  • Budget-conscious users who prioritize battery life and gaming performance.
  • Users who need a larger screen for media consumption and multitasking.
  • Users who prefer a more robust feel.
  • Users who do not need the absolute best camera performance.

Specific Use Cases (Poco X3 Pro):

  • Mobile gamers looking for good performance without a high price tag.
  • Users who frequently travel and need a long-lasting battery.
  • Users who prefer a large display for media streaming and reading.

Xiaomi 12X Ideal User:

  • Users who value display quality, performance, and a premium camera experience.
  • Users who prefer a more compact and lightweight design.
  • Users who want faster charging speeds.
  • Users who need excellent low light performance.

Specific Use Cases (Xiaomi 12X):

  • Users who heavily use their phone for photography and videography.
  • Users who consume a lot of high-quality media and value a premium viewing experience.
  • Users who need fast charging to quickly power up their phone on the go.
  • Users who value smooth multitasking for productivity.

Price-to-Value Ratio:

  • Poco X3 Pro: Offers excellent performance for the price, making it a great value option for budget-conscious users.
  • Xiaomi 12X: Provides flagship-level features and a superior experience for a higher price.

4. Decision Framework

Key Questions to Consider:

  1. What is your budget? The Poco X3 Pro will be more affordable.
  2. Do you prioritize battery life or display quality? Poco X3 Pro has a larger battery; 12X has a superior display.
  3. Do you need an advanced camera? Xiaomi 12X offers a significantly better camera system.

Scenario-Based Recommendations:

  • Budget-Conscious Gaming: If you need good gaming performance on a budget, the Poco X3 Pro is the better pick.
  • Media Consumption & Display Quality: If display quality and color accuracy are crucial, choose the Xiaomi 12X.
  • Photography and Videography: If you frequently use your phone for photos and videos, the Xiaomi 12X is the clear winner with its advanced camera features and 8K video recording.
  • Long Battery Life & Portability If you prioritize battery and pocketability go for the Poco X3 Pro. If you prioritize a compact phone and don't mind a slightly smaller battery, the 12X is a better pick.
  • Premium Experience: If you want a premium experience with flagship features, the Xiaomi 12X is better.

My Choice:

I would choose the Xiaomi 12X. While the Poco X3 Pro offers excellent value for money, the 12X's superior display (AMOLED), more powerful processor (Snapdragon 870), faster charging, and significantly better camera system are worth the additional cost for me. As someone who consumes a lot of media, values good photography and videography, and wants a device that feels premium, the 12X is the better choice. The smaller size and lighter weight also make it more convenient for daily use. While I appreciate the longer battery of the X3 Pro, the 12X's fast charging mitigates this concern for me, as I often have opportunities to quickly top up my 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.

Key Strengths:

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