OnePlus 9 vs Xiaomi Redmi Note 12 Pro - Detailed Phone Comparison

Detailed Comparison

Specification
OnePlus 9
OnePlus 9
Oneplus

General

Launch Date March 26, 2021 November 1, 2022
Release Year 2021 2022

Physical

Volume 103.29 cm³ 99.1 cm³
Screen Size to Weight Ratio 3.41 "/g 3.57 "/g
Weight 192 g 187 g
Height 160 mm 163 mm
Width 74.2 mm 76 mm
Thickness 8.7 mm 8 mm
Foldable Design No No
Available Colors
  • Winter Mist
  • Arctic Sky
  • Astral Black
  • Polar White
  • Frosted Blue (Sky Blue)
  • Onyx Black (Midnight Black)
  • Stardust Purple

Display

Screen Size 6.55 " 6.67 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 87.2 % 86.7 %
Pixel Density 402 PPI 395 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A 500 nits
HBM Brightness N/A 900 nits
Peak Brightness 1100 nits N/A

Hardware

Battery Capacity per Screen Area 104.89 mAh/in² 112.39 mAh/in²
Battery Density 43.57 mAh/cm³ 50.45 mAh/cm³
Battery Capacity 4500 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8350 Snapdragon 888 5G (5 nm) Mediatek Dimensity 1080 (6 nm)
CPU Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) Octa-core (2x2.6 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)
GPU Adreno 660 Mali-G68 MC4

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 13

Comparison Summary

Smartphone Comparison: OnePlus 9 vs. Xiaomi Redmi Note 12 Pro

1. Specifications Comparison

Here's a detailed comparison of the OnePlus 9 and Xiaomi Redmi Note 12 Pro, focusing on practical implications:

Design

FeatureOnePlus 9Xiaomi Redmi Note 12 ProPractical Impact
Dimensions160 × 74.2 × 8.7 mm163 × 76 × 8 mmXiaomi is slightly taller and wider; OnePlus is thicker. May impact one-handed use and pocketability, but negligibly.
Weight192g187gRedmi Note 12 Pro is slightly lighter; this small difference is unlikely to be noticeable for most users.

Display

FeatureOnePlus 9Xiaomi Redmi Note 12 ProPractical Impact
Size6.55"6.67"Slightly larger screen on the Xiaomi, may provide a more immersive viewing experience.
Resolution1080x24001080x2400Identical resolution means similar sharpness for everyday use.
PPI402395Both displays are very sharp, a difference of 7 PPI is difficult to notice for most users.
TechnologyAMOLEDAMOLEDBoth offer vibrant colors and deep blacks, great for media consumption.
Refresh Rate120Hz120HzSmooth scrolling and animations on both phones.
Brightness1100 nits900 nitsOnePlus 9 is noticeably brighter, making it easier to use outdoors in bright sunlight.

Performance

FeatureOnePlus 9Xiaomi Redmi Note 12 ProPractical Impact
ChipsetQualcomm Snapdragon 888 5G (5 nm)MediaTek Dimensity 1080 (6 nm)Snapdragon 888 provides significantly higher processing power, resulting in faster app loading, better multitasking.
AnTuTu Score880,900573,200OnePlus 9 scores much higher, indicating superior performance for demanding tasks like gaming.
GPUAdreno 660Mali-G68 MC4The Adreno 660 in the OnePlus 9 offers superior graphics performance for gaming and demanding graphical apps.

Camera

FeatureOnePlus 9Xiaomi Redmi Note 12 ProPractical Impact
Main Camera48MP (f/1.79, 1/1.4", 1.12µm)50MP (f/1.88, 1/1.56", 1.0µm)OnePlus 9's larger sensor captures more light, potentially leading to better low-light performance despite slightly lower pixel count.
Selfie Camera16MP (f/2.4, 1/3.13", 1.0µm)16MP (f/?, ?, ?)Both are comparable for general selfies. Xiaomi Note 12 Pro is missing spec for sensor size and aperture.
Wide Angle50MP (f/2.2, 1/1.56", 1.0µm)8MP (f/1.9, ?, ?)OnePlus 9 has much higher resolution for ultrawide shots. Xiaomi has wider aperture but this will not make up for the significant sensor differences.
Macro LensNone2MP (f/2.4, 1/5", 1.75µm)Xiaomi has a dedicated macro lens for close-up shots.
Black & White Lens2MP (f/2.4, ?, ?)NoneOnePlus 9 offers a dedicated black and white sensor. Not really practical for most users.
Video RecordingUp to 8K@30fpsUp to 4K@30fpsOnePlus 9 offers higher video resolution options.
Video StabilizationEISOIS & EISXiaomi has Optical Image Stabilization which will perform better for video and potentially still photography than Electronic Image Stabilization.
DXOMark ScoreNot Available102 (Mobile), 108 (Photo), 98 (Video)Xiaomi Note 12 Pro has a tested score that indicates decent camera performance. OnePlus 9 is not tested.

Battery

FeatureOnePlus 9Xiaomi Redmi Note 12 ProPractical Impact
Capacity4500mAh5000mAhXiaomi's larger battery should provide longer battery life.
Charging65W67WBoth offer fast charging. Differences are negligible.
Features15W Wireless ChargingNoneOnePlus 9 offers wireless charging, a convenient feature for some users.

2. Key Differences Analysis

OnePlus 9 Advantages

  • Superior Performance: Snapdragon 888 chipset and Adreno 660 GPU provide significantly faster performance for gaming, multitasking, and demanding applications.
  • Brighter Display: 1100 nits vs 900 nits, offers better visibility in bright conditions.
  • Higher Quality Ultrawide Camera: The 50MP ultrawide camera provides far superior images.
  • 8K Video Recording: Higher video resolution for those who want to capture professional grade content.
  • Wireless Charging: 15W Wireless Charging provides a convenient charging option.
  • Slightly better Bluetooth support: Apt-X codec support for higher quality audio.

Xiaomi Redmi Note 12 Pro Advantages

  • Larger Battery: 5000 mAh battery offers better endurance, lasting longer on a single charge.
  • Optical Image Stabilization (OIS): More stable video recording and improved low-light photography.
  • Macro Lens: A dedicated macro lens for close-up shots.
  • Slightly newer Android Version: Android 13.

Practical Implications

  • Performance: The OnePlus 9's performance advantage will be noticeable in demanding tasks, but the Xiaomi's performance is still adequate for daily use.
  • Camera: OnePlus 9 offers a superior camera setup. If ultrawide shots are important, it far outclasses the Note 12 Pro. If you really need macro, the Xiaomi can provide that.
  • Battery Life: The Xiaomi will likely last longer between charges.
  • Features: The OnePlus 9 has convenient features like wireless charging, but the Xiaomi offers a more stable camera with OIS and has a macro lens.

3. User Profiles & Recommendations

OnePlus 9 Ideal User

  • Gamers: Users who prioritize smooth performance and graphics for mobile gaming.
  • Power Users: Users who need fast app loading and multitasking performance for productivity.
  • Photo/Videography Enthusiasts: Users who want a camera capable of taking great photos including ultrawide and recording high quality video.
  • Users who like Wireless Charging: Users who prioritize convenience through wireless charging.

Xiaomi Redmi Note 12 Pro Ideal User

  • Casual Photographers: Users who like taking photos but are not highly dependent on quality.
  • Users who prioritize battery: Users who prioritize long battery life.
  • Users who want OIS: Users who value stable video recording.
  • Users who want macro: Users who enjoy taking close up shots.
  • General Users: Users who want a capable all-around device for daily use and media consumption.

Price-to-Value Ratio

  • The OnePlus 9, while older, offers significantly better performance and a more capable camera for a higher price. It may also be found cheaper due to its older age.
  • The Xiaomi Redmi Note 12 Pro is typically a budget friendly option, and offers good value for its features.

4. Decision Framework

Here are three key questions buyers should consider:

  1. How important is performance for me? If you do gaming or demanding tasks, the OnePlus 9 is the better choice. If you mainly do basic tasks, the Xiaomi is adequate.
  2. What features of the camera are most important? For ultrawide photography and video recording capabilities, the OnePlus 9 provides the best experience. If OIS and a Macro lens is important, then the Xiaomi is the choice.
  3. How much battery life do I need? If you prioritize battery life, the Xiaomi will provide a longer period of use between charges.

Scenario-Based Recommendations

  • Scenario 1: Gaming and High Performance: Choose the OnePlus 9 for its superior processing power and better graphics.
  • Scenario 2: Budget-Conscious with focus on battery life: Choose the Xiaomi Redmi Note 12 Pro for its larger battery and capable camera for the price.
  • Scenario 3: Photography with high priority on ultrawide: Choose the OnePlus 9 for its superior ultrawide lens.
  • Scenario 4: Photography with high priority on stable videos and macro: Choose the Xiaomi Redmi Note 12 Pro for its Optical Image Stabilization and Macro Lens.

Personal Choice

If I were choosing, I would pick the OnePlus 9. While the Redmi Note 12 Pro is a capable device with a larger battery and OIS, the superior performance, brighter display, and vastly better ultrawide camera of the OnePlus 9 outweigh those benefits for me. The Snapdragon 888 chipset offers a far more responsive experience, and the 8K video is a nice to have. I prioritize performance, a better screen, and photo/video quality over longer battery life and OIS, which makes the OnePlus 9 the clear winner. The wireless charging is a nice to have.

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.