OnePlus 8T vs Xiaomi Redmi Note 9T - Detailed Phone Comparison

Detailed Comparison

Specification
OnePlus 8T
OnePlus 8T
Oneplus

General

Launch Date October 16, 2020 January 18, 2021
Release Year 2020 2021

Physical

Volume 100.03 cm³ 113.39 cm³
Screen Size to Weight Ratio 3.48 "/g 3.28 "/g
Weight 188 g 199 g
Height 160.7 mm 161.2 mm
Width 74.1 mm 77.3 mm
Thickness 8.4 mm 9.1 mm
Foldable Design No No
Available Colors
  • Lunar Silver
  • Aquamarine Green
  • Cyberpunk 2077 Edition
  • Nightfall Black
  • Daybreak Purple

Display

Screen Size 6.55 " 6.53 "
Resolution 1080 x 2400 1080 x 2340
Aspect Ratio 20:9 19.5:9
Screen-to-Body Ratio 87 % 84 %
Pixel Density 402 PPI 395 PPI
Refresh Rate 120 Hz N/A
Typical Brightness N/A 450 nits
HBM Brightness N/A N/A
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 104.89 mAh/in² 117.26 mAh/in²
Battery Density 44.99 mAh/cm³ 44.09 mAh/cm³
Battery Capacity 4500 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8250 Snapdragon 865 5G (7 nm+) Mediatek Dimensity 800U (7 nm)
CPU Octa-core (1x2.84 GHz Cortex-A77 & 3x2.42 GHz Cortex-A77 & 4x1.80 GHz Cortex-A55) Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Adreno 650 Mali-G57 MC3

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 10
Maximum OS Version 14

Comparison Summary

1. Specifications Comparison

Design

FeatureOnePlus 8TXiaomi Redmi Note 9TPractical Impact
Dimensions160.7 × 74.1 × 8.4 mm161.2 × 77.3 × 9.1 mmOnePlus 8T is slightly slimmer and narrower, making it potentially easier to hold for some users. The Redmi Note 9T is a bit bulkier.
Weight188g199gThe OnePlus 8T is slightly lighter. This may be noticeable during extended use, especially one-handed.
BuildGorilla Glass 5 (Front)Gorilla Glass 5 (Front)Both offer similar scratch resistance for the display.

Display

FeatureOnePlus 8TXiaomi Redmi Note 9TPractical Impact
Size6.55"6.53"Negligible difference in screen size.
Resolution1080x24001080x2340Virtually identical sharpness.
PPI402395Perceived sharpness will be almost the same.
TechnologyAMOLEDIPS LCDAMOLED offers richer colors, deeper blacks, and better contrast, leading to a more immersive viewing experience, especially for multimedia consumption. Also better power efficiency for dark themes.
Refresh Rate120Hz60HzThe 120Hz display on the OnePlus 8T makes scrolling and animations significantly smoother. This is especially noticeable in gaming and fast-paced content.
Brightness1100 nits0 nits (Spec Missing)OnePlus 8T should be significantly better in direct sunlight (assuming Redmi Note 9T's brightness is typical of IPS LCDs). However, Xiaomi Redmi Note 9T brightness spec is missing.

Performance

FeatureOnePlus 8TXiaomi Redmi Note 9TPractical Impact
ChipsetQualcomm Snapdragon 865 5G (7 nm+)Mediatek Dimensity 800U (7 nm)The Snapdragon 865 is a significantly more powerful chipset, offering faster app loading, smoother multitasking, and better gaming performance.
AnTuTu Score744,900343,150This benchmark reflects the real-world performance difference. The OnePlus 8T will feel much snappier.
GPUAdreno 650Mali-G57 MC3The Adreno 650 is a superior GPU, providing better graphics performance for gaming and demanding applications.
RAM8 GB or 12 GB4 GBOnePlus 8T allows for far better multitasking, especially with many apps open or RAM-intensive applications. The 4GB RAM on the Redmi Note 9T may lead to app reloading and slower performance.

Camera

FeatureOnePlus 8TXiaomi Redmi Note 9TPractical Impact
Main Camera48MP, f/1.7, 1/2" Sony IMX58648MP, f/1.79, 1/2" Samsung S5KGM2Slightly wider aperture on the OnePlus 8T may result in marginally better low-light performance, though the difference in sensors also plays a role.
Ultrawide16MP, f/2.2NoneThe OnePlus 8T provides an ultrawide lens for capturing wider scenes, landscapes, and group photos, which the Redmi Note 9T lacks.
Macro5MP, f/2.42MP, f/2.4OnePlus 8T can capture slightly more detailed close-up shots.
Depth SensorNone2MP, f/2.4The Redmi Note 9T has a dedicated depth sensor for potentially better portrait mode effects.
Selfie Camera16MP, f/2.4, 1/3.13" Sony IMX47113MP, f/2.25, 1/3.1" Samsung S5K3L6Xiaomi Redmi Note 9T has wider aperture (f/2.4 vs f/2.25). Xiaomi Redmi Note 9T has larger sensor (1/3.13" vs 1/3.1\")
VideoUp to 4K@60fps with HDR, EISUp to 4K@30fpsOnePlus 8T offers more versatile video recording options (60fps and better HDR).
FeaturesOIS, Laser AF, RAW, Night ModePanorama, Exposure CompensationOnePlus 8T offers OIS (Optical Image Stabilization) for smoother videos and sharper low-light photos, plus RAW capture for advanced editing and a dedicated Night Mode.

Battery

FeatureOnePlus 8TXiaomi Redmi Note 9TPractical Impact
Capacity4500mAh5000mAhThe Redmi Note 9T will likely offer longer battery life, especially for users who don't need to charge frequently.
Charging65W Fast Charging18W Fast ChargingThe OnePlus 8T charges significantly faster, allowing you to quickly top up the battery.

Software

FeatureOnePlus 8TXiaomi Redmi Note 9TPractical Impact
OSAndroid 11 (upgradable to 14)Android 10 (upgradable to ?)OnePlus 8T has a more recent operating system, with guaranteed upgrades until Android 14.

Storage

FeatureOnePlus 8TXiaomi Redmi Note 9TPractical Impact
Internal128GB or 256GB64GB or 128GBOnePlus 8T offers more storage options, which is crucial since neither phone supports expandable storage.
ExpandableNoNoNo option to increase storage capacity.

2. Key Differences Analysis

OnePlus 8T Advantages:

  • Significantly Better Performance: The Snapdragon 865 chipset provides a vastly superior experience in terms of speed, responsiveness, and gaming capabilities.
  • Superior Display: The AMOLED panel with a 120Hz refresh rate offers a more vibrant, smoother, and immersive visual experience.
  • Faster Charging: 65W charging allows for incredibly quick battery top-ups.
  • More Versatile Camera: Offers an ultrawide lens, OIS, and more advanced video recording features.
  • More RAM: more RAM allows for more multitasking and demanding games

Practical Implications of OnePlus 8T Advantages:

  • Snappier performance is noticeable in everyday tasks like opening apps, browsing the web, and multitasking.
  • The 120Hz display makes scrolling and gaming significantly smoother and more enjoyable.
  • Faster charging minimizes downtime and keeps you connected longer.
  • The ultrawide lens expands photographic possibilities, while OIS improves image and video quality.

Xiaomi Redmi Note 9T Advantages:

  • Potentially Longer Battery Life: The larger battery capacity should translate to better battery endurance (though this is affected by the display technology, as AMOLED can be more power-efficient in dark mode)
  • Hi-Res Audio: Better audio listening experience

Practical Implications of Xiaomi Redmi Note 9T Advantages:

  • You might be able to go longer between charges, which is convenient if you're often away from a power source.
  • Hi-Res Audio makes listing to music and videos a better experience.

Significant Trade-offs:

  • Choosing the OnePlus 8T means sacrificing potentially longer battery life for significantly better performance, display quality, and camera features.
  • Choosing the Xiaomi Redmi Note 9T means prioritizing battery life while accepting a much less powerful processor, a lower-quality display, and a less versatile camera.

3. User Profiles & Recommendations

OnePlus 8T Ideal User:

  • Performance Enthusiasts: Users who value speed and responsiveness in their smartphone experience.
  • Gamers: Those who enjoy mobile gaming and need a powerful GPU and a smooth display.
  • Multimedia Consumers: People who watch a lot of videos and want a vibrant, high-quality display.
  • Photography Enthusiasts: Users who want a versatile camera system with features like OIS and RAW capture.

OnePlus 8T Use Cases:

  • Playing demanding mobile games like Genshin Impact or Call of Duty: Mobile.
  • Editing photos and videos on the go.
  • Binge-watching shows and movies on a vibrant AMOLED display.
  • Taking high-quality photos and videos in various lighting conditions.

Xiaomi Redmi Note 9T Ideal User:

  • Budget-Conscious Users: Prioritize affordability.
  • Battery Life Prioritizers: Those who need a phone that can last all day (or longer) on a single charge.
  • Basic Smartphone Users: People who primarily use their phone for calling, texting, and basic social media.

Xiaomi Redmi Note 9T Use Cases:

  • Everyday communication (calls, texts, emails).
  • Casual social media browsing.
  • Streaming music and listening with headphones
  • Users who don't want to charge their phone every day.

Price-to-Value Ratio:

  • The OnePlus 8T offers a significantly better overall experience for the price (depending on the price difference). While it may be more expensive, the performance, display, and camera improvements provide a substantial value.

4. Decision Framework

Key Questions to Consider:

  1. How important is performance to you? If you play demanding games or frequently multitask, the OnePlus 8T is the better choice.
  2. How much do you value display quality? The AMOLED screen with a 120Hz refresh rate on the OnePlus 8T offers a much more enjoyable viewing experience.
  3. How much do you prioritize battery life versus fast charging? The Redmi Note 9T likely offers longer battery life, but the OnePlus 8T's 65W charging is incredibly convenient.

Scenario-Based Recommendations:

  • Scenario 1: You're a student on a budget who needs a phone that can last all day. Recommendation: Xiaomi Redmi Note 9T.
  • Scenario 2: You're a mobile gamer who wants the best possible performance and visual experience. Recommendation: OnePlus 8T.
  • Scenario 3: You want a phone with a great camera for taking photos and videos of your travels. Recommendation: OnePlus 8T.

My Choice

I would choose the OnePlus 8T. While the Xiaomi Redmi Note 9T has the advantage of potentially longer battery life, the overall package offered by the OnePlus 8T is far more compelling. The significantly better performance (thanks to the Snapdragon 865), the superior AMOLED 120Hz display, the faster charging, and the more versatile camera system make it a much more enjoyable and capable device for my usage. I am often doing RAM-intensive activities such as playing games or video editing, so the OnePlus 8T is a better fit for my use case.

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
  • Technical storytelling
  • User-centric technology insights

Bridging technical complexity with engaging, accessible narratives.