OnePlus 9 Pro vs Xiaomi Poco X4 GT - Detailed Phone Comparison

Detailed Comparison

Specification
OnePlus 9 Pro
OnePlus 9 Pro
Oneplus

General

Launch Date March 30, 2021 June 27, 2022
Release Year 2021 2022

Physical

Volume 104.5 cm³ 108.18 cm³
Screen Size to Weight Ratio 3.4 "/g 3.3 "/g
Weight 197 g 200 g
Height 163.2 mm 163.6 mm
Width 73.6 mm 74.3 mm
Thickness 8.7 mm 8.9 mm
Foldable Design No No
Available Colors
  • Forest Green
  • Morning Mist
  • Stellar Black
  • Silver
  • Black
  • Blue

Display

Screen Size 6.7 " 6.6 "
Resolution 1440 x 3216 1080 x 2460
Aspect Ratio 20:9 21:9
Screen-to-Body Ratio 89.9 % 85.1 %
Pixel Density 525 PPI 407 PPI
Refresh Rate 120 Hz 144 Hz
Typical Brightness N/A 500 nits
HBM Brightness N/A 650 nits
Peak Brightness 1300 nits N/A

Hardware

Battery Capacity per Screen Area 100.25 mAh/in² 116.62 mAh/in²
Battery Density 43.06 mAh/cm³ 46.96 mAh/cm³
Battery Capacity 4500 mAh 5080 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8350 Snapdragon 888 5G (5 nm) Mediatek Dimensity 8100 (5 nm)
CPU Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55 Octa-core (4x2.85 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU Adreno 660 Mali-G610 MC6

Connectivity

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

Software

Operating System Android Android
Initial OS Version 11 12
Maximum OS Version 14

Comparison Summary

1. Specifications Comparison

FeatureOnePlus 9 ProXiaomi Poco X4 GTPractical Impact
Design
Dimensions163.2 × 73.6 × 8.7 mm163.6 × 74.3 × 8.9 mmNegligible size and weight difference; both are similarly sized phones, with the Poco X4 GT being slightly thicker.
Weight197g200gVirtually identical weight. Both feel similar in hand.
Display
Size6.7"6.6"OnePlus 9 Pro offers a slightly larger viewing area, suitable for content consumption.
Resolution1440x32161080x2460OnePlus 9 Pro has a significantly sharper and more detailed display, enhancing visual clarity for text and images.
Pixel Density (PPI)525407The OnePlus 9 Pro's screen appears visibly crisper and finer.
TechnologyIPS LCDThe Poco X4 GT offers IPS LCD technology, enhancing color quality. The OnePlus 9 Pro's technology is not listed.
Refresh Rate120Hz144HzXiaomi Poco X4 GT provides slightly smoother scrolling and animations, beneficial for gaming and fast-paced content.
Brightness1300 nits0 nitsOnePlus 9 Pro's screen is much easier to see outdoors in bright sunlight. Xiaomi Poco X4 GT brightness is not specified.
Performance
ChipsetSnapdragon 888 5GDimensity 8100Both are high-end chipsets. OnePlus 9 Pro has a slight edge in benchmarks, but both handle demanding tasks. Real world difference is negligible.
AnTuTu Score877,600820,061OnePlus 9 Pro has a slight performance edge in synthetic tests. Both offer smooth and responsive real-world performance.
GPUAdreno 660Mali-G610 MC6Different GPU architectures. Both are well-suited for gaming and demanding graphics applications. Real world difference is negligible.
Battery
Capacity4500mAh5080mAhXiaomi Poco X4 GT should offer longer battery life, potentially lasting a full day of heavy use.
Charging65W Fast Charging67W Fast ChargingBoth offer fast charging; negligible real-world difference in charging speed.
FeaturesReverse, Wireless, Reverse WirelessNon-removableOnePlus 9 Pro has more advanced charging features: reverse charging and wireless charging options.
Camera
Main Camera Res48MP64MPXiaomi Poco X4 GT captures more detailed images in good lighting.
Main Camera Sensor1/1.43"1/1.72"OnePlus 9 Pro has a larger sensor, better for low-light photography with more light intake.
Main Camera Aperturef/1.8f/1.89OnePlus 9 Pro has a wider aperture for better low light performance.
Telephoto LensYesNoOnePlus 9 Pro has optical zoom capabilities, useful for far-away shots.
Wide Angle Lens50MP8MPOnePlus 9 Pro captures significantly higher resolution ultrawide shots, more versatile for landscapes.
Macro LensNoYesThe Poco X4 GT is capable of taking close-up macro shots.
Selfie Camera Res16MP16MPSimilar selfie performance.
Black & White CameraYesNoOnePlus 9 Pro provides an additional lens for specialized black and white photography.
VideoUp to 8K@30fpsUp to 4K@30fpsOnePlus 9 Pro can capture higher-resolution video, better for video enthusiasts and professional use cases.
StabilizationYesNoOnePlus 9 Pro includes more advanced video stabilization.
Slow Motion480 fps960 fpsXiaomi Poco X4 GT has superior slow motion video capabilities.
DxOMark Score122 (Mobile)N/AOnePlus 9 Pro offers better overall photo and video quality according to DxOMark scores (for the main camera).
Software
OSAndroid 11 (upgradable to 14)Android 12Xiaomi Poco X4 GT ships with a newer Android version out of the box, but OnePlus 9 Pro's OS is upgradable to 14.
Connectivity
Wi-FiWi-Fi 6Wi-Fi 6Similar Wi-Fi performance, supporting the latest standards.
Bluetooth5.25.3Xiaomi Poco X4 GT has a slightly more recent Bluetooth version, offering improvements in efficiency.
GPSGPS, A-GPS, GLONASS, Beidou, Galileo, GPS (L1+L5), GLONASS (L1), BeiDou (B1), Galileo (E1+E5a)A-GPS, GLONASS, Beidou, QZSS, Galileo, GPS (L1+L5), GLONASS (L1), BeiDou (B1)Both phones offer reliable GPS for navigation, with minor variations in supported systems.
Storage
Internal128GB/256GB128GB/256GBBoth offer the same storage options, plenty for most users.
RAM8GB/12GB8GBOnePlus 9 Pro has an optional 12GB RAM, better for heavy multitaskers and demanding apps.
ExpandableNoNoNo option to expand storage on either device.
Audio
QualityDolby Atmos, Noise cancellation mic, Stereo Speakers, 3 micDolby Atmos, Hi-Res Audio, Stereo Speakers, 2 micOnePlus 9 Pro provides better quality audio due to its noise cancellation and superior microphone configurations; Xiaomi Poco X4 GT offers Hi-Res Audio support for audiophiles.
Security
Fingerprintbasic in-displayside-mountedXiaomi Poco X4 GT offers more convenient and faster fingerprint access through its side-mounted sensor.
Build Quality
Screen ProtectionGorilla Glass 5Gorilla Glass 5Similar level of screen protection for both phones.
SensorsBiometric: Fingerprint; Proximity: Proximity; Motion: Accelerometer, Compass, GyroscopeBiometric: Fingerprint; Motion: Accelerometer, Compass, Gyroscope; Proximity: Ultrasonic proximity virtualOnePlus 9 Pro features Proximity sensor while Xiaomi Poco X4 GT has an Ultrasonic proximity sensor. Other sensor configuration are similar.

2. Key Differences Analysis

OnePlus 9 Pro Advantages:

  • Superior Display: Higher resolution, higher pixel density, and higher brightness translate to a sharper, more vibrant, and more readable screen, especially in bright conditions.
  • Better Camera System: The OnePlus 9 Pro has a more versatile camera system with a telephoto lens for optical zoom, a higher resolution ultrawide lens, and a dedicated black and white lens and overall better image quality according to DxOMark. It also offers 8K video recording.
  • Advanced Battery Features: Includes 50W wireless charging and reverse wireless charging.
  • Enhanced Audio: Noise cancellation microphone and 3 microphones, which are better for spatial audio, voice capture, and calls.
  • Higher Performance Option: Has a 12 GB RAM option.

Practical Implications: Ideal for users who prioritize display quality, camera versatility, and premium features.

Xiaomi Poco X4 GT Advantages:

  • Newer Android Version: Ships with Android 12 out of the box.
  • Higher Refresh Rate: Smoother scrolling and gaming experience with the 144Hz refresh rate.
  • Larger Battery: Offers longer battery life for heavy users.
  • Newer Bluetooth Version: Enhanced Bluetooth efficiency.
  • Better slow-motion capabilities The device has superior slow-motion video capabilities.
  • More Convenient Fingerprint Sensor: Side-mounted fingerprint sensor is more convenient.
  • Macro Lens: Allows for detailed close-up photos.

Practical Implications: Ideal for gamers, users who prioritize battery life, and those who want a newer Android version.

Trade-offs:

  • OnePlus 9 Pro: While having a superior display and camera, it has a smaller battery, is older, and lacks a macro lens, and a less convenient fingerprint sensor.
  • Xiaomi Poco X4 GT: Has a lower-resolution display, a less versatile camera, and lacks wireless charging, but it makes up for it with longer battery life and a higher refresh rate.

3. User Profiles & Recommendations

OnePlus 9 Pro:

  • Ideal User: Users who prioritize visual quality (for viewing photos and watching videos) and camera versatility (photography enthusiasts, content creators). Those who appreciate a premium build quality.
  • Use Cases:
    • Professional photography and videography.
    • High-quality content consumption (movies, streaming).
    • Users who want a versatile camera system for different situations.
    • Users who rely on wireless charging and reverse charging.

Xiaomi Poco X4 GT:

  • Ideal User: Gamers, users who value battery life, and those on a budget who want great performance and good features.
  • Use Cases:
    • Mobile gaming (high refresh rate and smooth performance).
    • Users who need a phone that will last the whole day.
    • Users who prefer a side-mounted fingerprint sensor.
    • Those who want a recent Android version.

4. Decision Framework

Key Questions to Consider:

  1. How important is display quality? Do you need the highest resolution and brightness, or is a slightly less sharp but fast display sufficient?
  2. What is your primary camera use case? Do you need telephoto zoom and 8K recording, or are good main camera photos and slow-motion video more important?
  3. Do you prioritize battery life or wireless charging? Do you need the longest battery life possible or want wireless charging features?

Scenario-Based Recommendations:

  • For the Content Creator/Photography Enthusiast: The OnePlus 9 Pro is the better choice due to its better cameras and 8K recording capabilities.
  • For the Mobile Gamer: The Xiaomi Poco X4 GT is recommended because of its higher refresh rate, larger battery, and lower price.
  • For the Everyday User: Both are great options, but the choice comes down to battery vs display. If you use your phone for long hours and watch videos constantly, the OnePlus 9 Pro is recommended. If you want a more efficient battery and care less about the image quality, Xiaomi Poco X4 GT should be your choice.

What I would choose and why!

Personally, I would choose the OnePlus 9 Pro. While the Xiaomi Poco X4 GT offers compelling advantages like a higher refresh rate and larger battery, the OnePlus 9 Pro's superior display quality (higher resolution, brightness, and pixel density) and camera versatility (telephoto lens, better video quality, ultrawide camera) are more valuable for my use case. As someone who consumes a lot of media and occasionally takes photos and videos, the sharper screen and more versatile camera system are very beneficial. Additionally, the availability of wireless and reverse wireless charging is a welcome feature for convenient charging.

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