OnePlus 9 Pro vs Xiaomi Poco C40 - Detailed Phone Comparison

Detailed Comparison

Specification
OnePlus 9 Pro
OnePlus 9 Pro
Oneplus

General

Launch Date March 30, 2021 June 17, 2022
Release Year 2021 2022

Physical

Volume 104.5 cm³ 119.52 cm³
Screen Size to Weight Ratio 3.4 "/g 3.29 "/g
Weight 197 g 204 g
Height 163.2 mm 169.6 mm
Width 73.6 mm 76.6 mm
Thickness 8.7 mm 9.2 mm
Foldable Design No No
Available Colors
  • Forest Green
  • Morning Mist
  • Stellar Black
  • Coral Green
  • Poco Yellow
  • Power Black

Display

Screen Size 6.7 " 6.71 "
Resolution 1440 x 3216 720 x 1650
Aspect Ratio 20:9 21:9
Screen-to-Body Ratio 89.9 % 82 %
Pixel Density 525 PPI 268 PPI
Refresh Rate 120 Hz N/A
Typical Brightness N/A 400 nits
HBM Brightness N/A N/A
Peak Brightness 1300 nits N/A

Hardware

Battery Capacity per Screen Area 100.25 mAh/in² 133.26 mAh/in²
Battery Density 43.06 mAh/cm³ 50.2 mAh/cm³
Battery Capacity 4500 mAh 6000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8350 Snapdragon 888 5G (5 nm) JLQ JR510 (11 nm)
CPU Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55 Octa-core (4x2.0 GHz Cortex-A55 & 4x1.5 GHz Cortex-A55)
GPU Adreno 660 Mali-G57 MC1

Connectivity

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

Software

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

Comparison Summary

1. Specifications Comparison

FeatureOnePlus 9 ProXiaomi Poco C40Practical Impact
Design
Dimensions163.2 × 73.6 × 8.7 mm169.6 × 76.6 × 9.2 mmPoco C40 is larger, taller, wider, and thicker, making the OnePlus 9 Pro more pocketable.
Weight197g204gOnePlus 9 Pro is lighter, making it slightly more comfortable for extended use.
Display
Size6.7"6.71"Virtually identical screen size.
Resolution1440x3216720x1650OnePlus 9 Pro has a much sharper display, resulting in crisper text and images.
PPI525268OnePlus 9 Pro has significantly higher pixel density, leading to much sharper visuals.
TechnologyIPS LCDXiaomi Poco C40 uses IPS LCD which offers good color reproduction. The OnePlus 9 Pro display technology is not specified.
Refresh Rate120Hz60HzOnePlus 9 Pro has smoother animations and scrolling for a more fluid experience.
Brightness1300 nits0 nitsOnePlus 9 Pro offers superior outdoor visibility, significantly better performance in direct sunlight. The Poco C40 brightness is unknown which means it will not be good in bright daylight
Performance
ChipsetSnapdragon 888 5G (5 nm)JLQ JR510 (11 nm)OnePlus 9 Pro has a much faster processor, leading to significantly faster app loading, smoother multitasking, and better gaming performance.
AnTuTu Score877,600128,944OnePlus 9 Pro has vastly superior performance in benchmarks, translates to a much snappier user experience.
GPUAdreno 660Mali-G57 MC1OnePlus 9 Pro offers superior graphics performance, much better gaming experience.
Battery
Capacity4500mAh6000mAhXiaomi Poco C40 has a larger battery, potentially offering longer battery life. Actual battery life depends on software and usage.
Charging65W Fast Charging18W Fast ChargingOnePlus 9 Pro charges much faster, meaning less time plugged in.
Features50W Wireless, Reverse Wireless10W Charger in BoxOnePlus 9 Pro has wireless charging and reverse charging. Poco C40 includes a charger, but is a slower charger.
Camera
Standard Camera48MP, f/1.8, 1/1.43", Sony IMX78913MP, f/1.8OnePlus 9 Pro has a higher resolution primary camera, potentially better image quality in good light. Sensor and pixel size details are unknown for the Poco C40.
Selfie Camera16MP, f/2.4, 1/3.13"5MP, f/2.2OnePlus 9 Pro has higher resolution selfie camera, generally resulting in clearer photos, Xiaomi has a wider aperture.
Telephoto lens8MP, f/2.4, 1/4.4"Not AvailableOnePlus 9 Pro has a dedicated telephoto camera for optical zoom capabilities.
Wide Angle lens50MP, f/2.2, 1/1.56", Sony IMX766Not AvailableOnePlus 9 Pro has a dedicated wide angle camera.
Portrait (Depth)Not Available2MP, f/2.4Xiaomi Poco C40 has a dedicated depth sensor for improved portrait mode.
Black & White2MP, f/2.4Not AvailableOnePlus 9 Pro has a dedicated black & white camera.
VideoUp to 8K@30fps with HDR, EISUp to 1080p@30fpsOnePlus 9 Pro offers much higher video recording capabilities.
DxOMarkMain: 122, Photo: 124, Video: 118Not testedOnePlus 9 Pro has a high-rated camera based on DxOMark scores.
FeaturesExtensive, incl. OIS, 8K Video, RAW, Night ModeBasic, incl. Digital image stabilizationOnePlus 9 Pro offers advanced features like optical image stabilization, 8K video, RAW capture, and more.
Software
OSAndroid 11, max 14Android 11OnePlus 9 Pro has OS updates up to android 14, while the Poco C40's update is unspecified
Connectivity
WiFiWiFi 6, Wi-Fi MiMOWiFi 5OnePlus 9 Pro supports newer Wi-Fi standard.
Bluetooth5.2 with APT-x, LDAC5.0 with EDR, HIDOnePlus 9 Pro has a newer Bluetooth version with better audio codecs.
GPSDual-band with more supportStandard GPSOnePlus 9 Pro has higher accuracy GPS with more satellite support.
SIMDual Nano SIMDual Nano SIMBoth support Dual SIM.
Storage
Internal128/256 GB32/64 GBOnePlus 9 Pro offers more internal storage, which is important since neither device has expandable storage.
RAM8/12 GB3/4 GBOnePlus 9 Pro offers much more RAM for better multitasking and running demanding applications.
ExpandableNot availableNot availableNeither device supports expandable storage.
Audio
QualityDolby Atmos, Stereo speakersBasic audioOnePlus 9 Pro offers superior audio quality with spatial audio and better noise cancellation.
Security
FeaturesBasic fingerprint sensorRear-mounted fingerprint sensorBoth have fingerprint sensors but located differently.
Build Quality
ProtectionCorning Gorilla Glass 5Corning Gorilla Glass 3OnePlus 9 Pro has better screen protection.
SensorsComprehensiveBasicOnePlus 9 Pro has more sensors (accelerometer, compass, gyroscope)

2. Key Differences Analysis

OnePlus 9 Pro Advantages:

  • Superior Display: Significantly higher resolution, pixel density, refresh rate, and brightness. Provides a much sharper, smoother, and brighter visual experience, especially outdoors.
  • Exceptional Performance: Much more powerful processor and GPU resulting in a noticeably faster, smoother, and more responsive experience, better for gaming and demanding apps.
  • Advanced Camera System: Significantly better main camera, dedicated telephoto and ultrawide lenses, much higher resolution video capabilities, and more advanced camera features (OIS, RAW).
  • Faster Charging: Significantly faster wired charging speeds, plus wireless charging capabilities.
  • Superior Audio: Features Dolby Atmos, stereo speakers, and noise cancellation.
  • Connectivity: Offers newer Wi-Fi and Bluetooth standards.
  • More Storage and RAM: Significantly more internal storage and RAM options
  • Software: Guarantees up to Android 14.

Xiaomi Poco C40 Advantages:

  • Larger Battery: Larger battery capacity, potentially offering longer battery life, although actual endurance is influenced by other factors such as processor efficiency and software.
  • Price: Likely a significantly lower price point.
  • Included Charger: Comes with a charger in the box, though it's a slower 10W charger.
  • Portrait mode: Has a dedicated depth sensor for portrait mode.

Significant Trade-offs:

  • OnePlus 9 Pro: Higher cost, shorter battery life (despite fast charging).
  • Xiaomi Poco C40: Significantly lower performance, poorer display quality, basic camera capabilities, slower charging, and missing premium features.

3. User Profiles & Recommendations

OnePlus 9 Pro is Ideal for:

  • Power Users: Users who prioritize performance, multitasking, and gaming.
  • Photography Enthusiasts: Users who want high-quality photos and videos, with versatile lens options and advanced features.
  • Multimedia Consumers: Users who value a high-quality display for watching videos and viewing content, smooth scrolling and navigation.
  • Tech-Savvy Users: Users who want the latest technology and a premium experience.

Specific Use Cases for OnePlus 9 Pro:

  • Playing graphically intense mobile games.
  • Editing high-resolution photos and videos.
  • Shooting high-quality content on the go.
  • Multi-tasking between demanding apps.
  • Using the phone as a main device for a few years.

Xiaomi Poco C40 is Ideal for:

  • Budget-Conscious Users: Users who want a functional smartphone at a very affordable price.
  • Basic Smartphone Users: Users who primarily use their phones for calls, messaging, and basic social media.
  • Users Prioritizing Battery Life: Users who prioritize battery life over performance and camera quality.
  • Users who just want a second phone: Those who do not want to spend a lot for a second or spare phone.

Specific Use Cases for Xiaomi Poco C40:

  • Long-lasting battery for extended use without frequent charging.
  • Making and receiving calls and messages.
  • Basic web browsing and social media usage.
  • A phone for children or seniors who do not need premium features.
  • As a secondary or back-up device.

4. Decision Framework

Key Questions for Buyers:

  1. What is your budget? The OnePlus 9 Pro will be significantly more expensive.
  2. What do you primarily use your smartphone for? (e.g., gaming, photography, basic communication, long battery).
  3. How important is display quality? (e.g., resolution, brightness, refresh rate).

Scenario-Based Recommendations:

  • Scenario 1: Budget is the primary concern: Choose the Xiaomi Poco C40 due to its lower price point.
  • Scenario 2: You prioritize performance and camera quality: The OnePlus 9 Pro is the clear choice, despite its higher price.
  • Scenario 3: You need a reliable phone with long battery life for basic tasks: The Xiaomi Poco C40 offers better battery life.
  • Scenario 4: You want a phone that will last you a long time and have the best features: The Oneplus 9 Pro offers software updates until Android 14, while the Poco C40 does not specify any specific number of OS updates.

My Choice

If I had to choose between these two phones, I would pick the OnePlus 9 Pro. Here's why:

While the Poco C40 has a larger battery and a lower price point, the vast differences in display quality, performance, camera capabilities, and other advanced features make the OnePlus 9 Pro a significantly better device for my use case. I use my smartphone for a variety of tasks, including consuming multimedia, gaming, photography, and work. The OnePlus 9 Pro's superior display, fast performance, and advanced camera features are crucial for my needs. Although the battery life may be shorter than the Poco C40, the fast charging capabilities of the OnePlus 9 Pro help mitigate this issue. Furthermore, the support for newer wifi and bluetooth standards will offer a better overall experience for me. In conclusion, even though the Poco C40 may be a good budget option, the Oneplus 9 Pro is a much better phone that can do more and be a daily driver for years.

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.