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

Detailed Comparison

Specification
OnePlus 9 Pro
OnePlus 9 Pro
Oneplus

General

Launch Date January 18, 2021 March 30, 2021
Release Year 2021 2021

Physical

Volume 113.39 cm³ 104.5 cm³
Screen Size to Weight Ratio 3.28 "/g 3.4 "/g
Weight 199 g 197 g
Height 161.2 mm 163.2 mm
Width 77.3 mm 73.6 mm
Thickness 9.1 mm 8.7 mm
Foldable Design No No
Available Colors
  • Nightfall Black
  • Daybreak Purple
  • Forest Green
  • Morning Mist
  • Stellar Black

Display

Screen Size 6.53 " 6.7 "
Resolution 1080 x 2340 1440 x 3216
Aspect Ratio 19.5:9 20:9
Screen-to-Body Ratio 84 % 89.9 %
Pixel Density 395 PPI 525 PPI
Refresh Rate N/A 120 Hz
Typical Brightness 450 nits N/A
HBM Brightness N/A N/A
Peak Brightness N/A 1300 nits

Hardware

Battery Capacity per Screen Area 117.26 mAh/in² 100.25 mAh/in²
Battery Density 44.09 mAh/cm³ 43.06 mAh/cm³
Battery Capacity 5000 mAh 4500 mAh
NFC Support Yes Yes
Chipset Mediatek Dimensity 800U (7 nm) Qualcomm SM8350 Snapdragon 888 5G (5 nm)
CPU Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55
GPU Mali-G57 MC3 Adreno 660

Connectivity

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

Software

Operating System Android Android
Initial OS Version 10 11
Maximum OS Version 14

Comparison Summary

1. Specifications Comparison

Design

FeatureXiaomi Redmi Note 9TOnePlus 9 ProPractical Impact
Dimensions161.2 × 77.3 × 9.1 mm163.2 × 73.6 × 8.7 mmRedmi Note 9T is wider and thicker, potentially less comfortable for one-handed use. OnePlus 9 Pro is slightly taller, but more slender overall.
Weight199g197gNegligible difference in weight.
BuildStandardStandardBoth are standard smartphone designs

Display

FeatureXiaomi Redmi Note 9TOnePlus 9 ProPractical Impact
Size6.53"6.7"OnePlus 9 Pro offers a slightly larger viewing area, better for media consumption and gaming.
Resolution1080x23401440x3216OnePlus 9 Pro has a sharper display, leading to crisper text and more detailed images.
PPI395525OnePlus 9 Pro’s higher pixel density provides a noticeably clearer and more refined visual experience.
TechnologyIPS LCDRedmi Note 9T uses IPS LCD, which offers good color accuracy and viewing angles, but we are missing the technology for OnePlus 9 Pro.
Refresh Rate60Hz120HzOnePlus 9 Pro offers significantly smoother scrolling and animations, enhancing the overall user experience, particularly for gaming and fast-paced content.
Brightness0 nits1300 nitsOnePlus 9 Pro is significantly brighter, making it much more usable outdoors in bright sunlight. The Redmi Note 9T's display may be difficult to see in direct sunlight.

Performance

FeatureXiaomi Redmi Note 9TOnePlus 9 ProPractical Impact
ChipsetMediatek Dimensity 800U (7 nm)Qualcomm SM8350 Snapdragon 888 5G (5 nm)OnePlus 9 Pro's Snapdragon 888 is a much more powerful chipset, offering better performance in all areas, including gaming and heavy multitasking.
Antutu Score343,150877,600The OnePlus 9 Pro's dramatically higher score indicates significantly faster app loading, smoother operation, and enhanced gaming capabilities.
GPUMali-G57 MC3Adreno 660OnePlus 9 Pro's Adreno 660 is a more powerful GPU, leading to better graphics performance in games and other graphically intensive apps.

Camera

FeatureXiaomi Redmi Note 9TOnePlus 9 ProPractical Impact
Main Camera Resolution48MP48MPBoth have a 48MP main camera. The impact here will depend on sensor, aperture and post processing.
Main Camera Aperturef/1.79f/1.8Redmi Note 9T's wider aperture (f/1.79) might provide slightly better low-light performance, but the difference is marginal.
Main Camera Sensor Size1/2"1/1.43"OnePlus 9 Pro has a larger sensor which is better at gathering light, improving image quality, especially in low-light situations.
Selfie Camera Resolution13MP16MPOnePlus 9 Pro offers slightly more detailed selfies with higher resolution.
Selfie Camera Aperturef/2.25f/2.4Redmi Note 9T’s wider aperture might lead to slightly brighter selfies, particularly in low light.
Selfie Camera Sensor Size1/3.1"1/3.13"Very similar sensor sizes.
Telephoto LensNone8MPOnePlus 9 Pro offers optical zoom capabilities for clearer photos at a distance, a feature missing from the Redmi Note 9T.
Wide Angle LensNone50MPOnePlus 9 Pro offers a dedicated wide-angle camera for capturing more of a scene, a versatility missing in the Redmi Note 9T.
Portrait Mode (depth)2MPNoneRedmi Note 9T includes a dedicated depth sensor, while OnePlus 9 Pro may use software for bokeh.
Macro Lens2MPNoneRedmi Note 9T includes a dedicated macro camera for close-up photography, a feature absent on the OnePlus 9 Pro.
Black and WhiteNone2MPOnePlus 9 Pro offers a dedicated black and white camera, enabling creative monochrome shots.
Video RecordingUp to 4K@30fpsUp to 8K@30fps, 4K@120fpsOnePlus 9 Pro has superior video recording capabilities, offering higher resolutions and frame rates and HDR
Video StabilizationNoYesOnePlus 9 Pro has superior video stabilization, reducing shake and blur in videos
DxOMark ScoreN/A122The OnePlus 9 Pro has a good DxOMark score showing the quality of its cameras.

Battery

FeatureXiaomi Redmi Note 9TOnePlus 9 ProPractical Impact
Capacity5000mAh4500mAhRedmi Note 9T has a larger battery, potentially providing longer battery life for less intensive users.
Charging18W Fast Charging65W Fast ChargingOnePlus 9 Pro charges much faster, quickly replenishing the battery for those frequently on the go.
Battery Features22.5W charger inboxReverse charging, 50W wireless charging, reverse wireless chargingOnePlus 9 Pro offers more convenient charging options with both wireless charging and reverse charging. The Redmi Note 9T comes with a charger in the box.

2. Key Differences Analysis

Xiaomi Redmi Note 9T Advantages:

  • Larger Battery: The 5000mAh battery offers potentially longer battery life than the OnePlus 9 Pro.
  • Wider Aperture on Main Camera: The f/1.79 aperture might offer a slight advantage in low-light photography.
  • Dedicated Depth and Macro Lenses: Provides specific features for portrait and close-up shots.
  • Hi-Res Audio: The Redmi Note 9T includes Hi-Res audio support.

    • Practical Implications: Better for users who prioritize battery life, budget-conscious buyers, or those who want dedicated depth and macro lenses on a budget.

OnePlus 9 Pro Advantages:

  • Superior Display: Higher resolution, pixel density, and refresh rate (120Hz) provide a significantly better viewing experience. Higher brightness for outdoor usage.
  • Significantly More Powerful Performance: Snapdragon 888 chipset offers much faster processing speeds for demanding applications and gaming.
  • Better Camera System: Larger main sensor, Telephoto and Wide Angle Lenses and advanced video features (8K recording, 4K 120FPS with HDR and EIS) and optical zoom provide greater versatility.
  • Faster Charging: The 65W fast charging dramatically reduces charging times. Wireless charging and reverse wireless charging provides extra features.
  • More RAM and Internal Storage Options: Better for heavy multitasking, especially with 12GB of RAM and 256GB of storage.
  • Latest Software: Comes with Android 11 and has upgrade to Android 14 available, while the Redmi Note 9T comes with Android 10.
  • Better Connectivity: Has newer wifi and bluetooth versions.
  • Superior Audio: Dolby Atmos, Noise cancellation microphone, 3 microphones offer better audio experience

    • Practical Implications: Best for users who demand top-tier performance, a premium display, advanced camera capabilities, or fast charging speeds.

Trade-offs:

  • Redmi Note 9T sacrifices performance, screen quality and camera versatility to achieve a lower price point, but offers better battery capacity.
  • OnePlus 9 Pro trades off battery capacity and dedicated macro/depth lenses for superior performance, display, camera and fast charging capabilities, plus many extra features.

3. User Profiles & Recommendations

Xiaomi Redmi Note 9T:

  • Ideal User: Budget-conscious consumers, users who value battery life over raw performance, people who prefer physical buttons, or those needing a decent phone for everyday tasks and casual photography.
  • Use Cases: Browsing the internet, social media, making calls, watching videos, basic photography, and as a secondary device.
  • Price-to-Value: Offers good value for its price point, providing a capable experience for basic smartphone needs.

OnePlus 9 Pro:

  • Ideal User: Performance enthusiasts, gamers, mobile photographers, video creators, those who value a premium viewing experience, and users who want all the modern features and convenience.
  • Use Cases: Playing high-end mobile games, editing photos and videos, content creation, watching high-resolution videos and consuming content, using multiple apps simultaneously, and anyone wanting a flagship experience.
  • Price-to-Value: Justifies its higher price with top-tier performance, a premium display, versatile cameras, and fast charging but is also a much older phone.

4. Decision Framework

Key Questions to Ask:

  1. What is your primary use for the phone? (e.g., daily communication vs. heavy gaming and content creation)
  2. How important is screen quality and visual experience? (e.g., do you prioritize high resolution and refresh rate)
  3. What is your budget and preferred price-to-value ratio? (e.g., do you prioritize value over flagship features)

Scenario-Based Recommendations:

  • Scenario 1: Budget Conscious & Battery Focused
    • Recommendation: Xiaomi Redmi Note 9T. It provides a larger battery at a lower price, handling everyday tasks adequately.
  • Scenario 2: Performance, Camera and Display Focused
    • Recommendation: OnePlus 9 Pro. Despite being older, the performance and quality of its screen and camera will be worth it.
  • Scenario 3: Balanced Use & Basic Needs
    • Recommendation: Xiaomi Redmi Note 9T. It offers a good balance for general use, without the premium price.
  • Scenario 4: High Demands & Flagship Experience
    • Recommendation: OnePlus 9 Pro. This is the better choice for users needing the best performance, display and versatile cameras.

My Choice

Based on my preferences and priorities, I would choose the OnePlus 9 Pro. While the Redmi Note 9T has a larger battery and better price, the OnePlus 9 Pro offers a substantially superior experience in nearly every other aspect.

The higher resolution, 120Hz refresh rate display, and brighter screen would make daily use much more enjoyable. The Snapdragon 888 chipset and 8GB or 12GB of RAM offers superior performance for multitasking, gaming, and everyday tasks. The more advanced camera system, with its larger main sensor, telephoto and wide-angle lenses would give me more flexibility when taking photos or videos. Additionally, the incredibly fast 65W charging is a major advantage for those of us on the go.

While the battery capacity is smaller, I am willing to trade that for significantly better overall performance and features, and can easily charge during the day. The premium build and extra features like wireless and reverse wireless charging and superior audio, are something I would also benefit from. As a user who values performance, photography, and a premium display experience, the OnePlus 9 Pro fits my needs better, even as an older device. While a more modern phone could be preferable in terms of future software support, the capabilities of the OnePlus 9 Pro are worth the trade-off.

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.