OnePlus 9 vs Xiaomi 13T - Detailed Phone Comparison

Detailed Comparison

Specification
OnePlus 9
OnePlus 9
Oneplus
Xiaomi 13T
Xiaomi 13T
Xiaomi

General

Launch Date March 26, 2021 September 26, 2023
Release Year 2021 2023

Physical

Volume 103.29 cm³ 104.37 cm³
Screen Size to Weight Ratio 3.41 "/g 3.46 "/g
Weight 192 g 193 g
Height 160 mm 162.2 mm
Width 74.2 mm 75.7 mm
Thickness 8.7 mm 8.5 mm
Foldable Design No No
Available Colors
  • Winter Mist
  • Arctic Sky
  • Astral Black
  • Black
  • Meadow Green
  • Alpine Blue

Display

Screen Size 6.55 " 6.67 "
Resolution 1080 x 2400 1220 x 2712
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 87.2 % 87.5 %
Pixel Density 402 PPI 446 PPI
Refresh Rate 120 Hz 144 Hz
Typical Brightness N/A N/A
HBM Brightness N/A 1200 nits
Peak Brightness 1100 nits 2600 nits

Hardware

Battery Capacity per Screen Area 104.89 mAh/in² 112.39 mAh/in²
Battery Density 43.57 mAh/cm³ 47.91 mAh/cm³
Battery Capacity 4500 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8350 Snapdragon 888 5G (5 nm) Mediatek Dimensity 8200 Ultra (4 nm)
CPU Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) Octa-core (1x3.1 GHz Cortex-A78 & 3x3.0 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 13
Maximum OS Version 13 17

Comparison Summary

1. Specifications Comparison

FeatureOnePlus 9Xiaomi 13TPractical Impact
Design
Launch Date2021-03-262023-09-26Xiaomi 13T is significantly newer, implying more recent software and potentially longer support.
Dimensions160 x 74.2 x 8.7 mm162.2 x 75.7 x 8.5 mmXiaomi 13T is slightly taller and wider, but negligibly thinner. Minimal real-world difference.
Weight192g193gVirtually identical weight, no practical difference.
Display
Size6.55"6.67"Xiaomi 13T has a slightly larger screen, offering a marginally more immersive experience.
Resolution1080x24001220x2712Xiaomi 13T's display will look sharper and clearer due to higher pixel density.
Pixel Density (PPI)402446Xiaomi 13T provides a slightly crisper image with more detail visible.
TechnologyAMOLEDAMOLEDBoth phones have vibrant colors and deep blacks, but display quality can still differ due to other factors like color calibration.
Refresh Rate120Hz144HzXiaomi 13T has slightly smoother scrolling and animations, but most users won't notice a significant difference.
Brightness1100 nits2600 nitsXiaomi 13T is much more readable in bright sunlight due to significantly higher brightness.
Performance
ChipsetQualcomm Snapdragon 888 5G (5 nm)Mediatek Dimensity 8200 Ultra (4 nm)Both offer flagship-level performance, but the Dimensity is newer and may be slightly more efficient. Real-world differences will depend on specific tasks.
AnTuTu Score880,900905,364Both offer nearly identical performance, ensuring smooth operation for most tasks.
GPUAdreno 660Mali-G610 MC6Different GPUs, but both are high-end and suitable for gaming. Real-world gaming differences will be marginal.
Battery
Capacity4500mAh5000mAhXiaomi 13T is expected to have better battery life thanks to the larger capacity.
Charging65W fast charging67W fast chargingBoth offer very fast charging speeds, with Xiaomi 13T negligibly faster.
Features15W Wireless ChargingNon-removableOnePlus 9 offers wireless charging, a convenient feature for some users.
Camera
Main Camera Resolution48MP50MPMinor difference in resolution, but sensor size and image processing matter more.
Main Camera Aperturef/1.79f/1.9OnePlus 9 can capture more light in darker environments.
Main Camera Sensor Size1/1.4"1/1.28"Xiaomi 13T has slightly larger sensor, capturing more light and detail.
Telephoto/Portrait CameraNo50MP f/1.9Xiaomi 13T offers a dedicated telephoto/portrait camera for zoomed shots and portraits.
Selfie Camera Resolution16MP20MPXiaomi 13T has a higher-resolution front camera for sharper selfies.
Selfie Camera Aperturef/2.4f/2.2Xiaomi 13T's wider aperture will allow better low-light performance.
Selfie Camera Sensor Size1/3.13"1/2"Xiaomi 13T has larger sensor for better light capture.
Wide Angle Resolution50MP13MPOnePlus 9 has a significantly higher-resolution ultrawide lens.
Wide Angle Sensor Size1/1.56"1/3.06"OnePlus 9 captures much more light and detail with ultrawide.
Black & White Camera2MPNoOnePlus 9 offers an additional black and white sensor.
Video RecordingUp to 8K@30fpsUp to 4K@30fpsOnePlus 9 records higher-resolution video; Xiaomi 13T has better video stabilization.
DXOMark Mobile ScoreN/A123Xiaomi 13T's camera performance is rated as very good in DXOMark testing. OnePlus 9 lacks publicly available data.
Software & Connectivity
Operating SystemAndroid 11Android 13Xiaomi 13T offers more up-to-date software.
Wi-FiWiFi 6WiFi 7Xiaomi 13T supports newer, faster WiFi standard.
Bluetooth5.25.3Xiaomi 13T has newer Bluetooth with potentially better connectivity.
GPSGPS, A-GPS, GLONASS, Beidou, Galileo, GPS (L1+L5), BeiDou (B1), Galileo (E1+E5a), BeiDou (B2)GPS, A-GPS, GLONASS, Beidou, QZSS, Galileo, GPS (L1+L5), GLONASS (L1), BeiDou (B1), Galileo (E1+E5a), BeiDou (B2), NavIC System, QZSS (L1 + L5)Xiaomi 13T has more satellite systems for better location accuracy.
SIMDual SIM (Nano SIM)Dual SIM (Nano SIM / eSIM)Xiaomi 13T supports eSIM for digital carrier flexibility.
Storage & Audio
Internal Storage128/256 GB256/512 GBXiaomi 13T offers significantly more storage space.
RAM8/12 GB8/12 GBBoth phones have ample RAM for smooth multitasking.
Expandable StorageNoNoNeither phone allows for expandable storage.
Audio QualityDolby Atmos, 3 mics, Noise cancellationDolby Atmos, Hi-Res Audio, 2 micsOnePlus 9 has more microphones with noise cancellation. Xiaomi 13T offers Hi-Res audio.
Security & Build
Fingerprint SensorBasic Fingerprint SensorBasic Fingerprint SensorBoth have standard biometric security features.
Screen ProtectionGorilla Glass 5Gorilla Glass 5Both use similar screen protection.
Sensors
SensorsFingerprint, Proximity, Accelerometer, Compass, GyroscopeFingerprint, Heart Rate, Accelerometer, Compass, Gyroscope, Magnetometer, Ultrasonic ProximityXiaomi 13T has a wider array of sensors for more advanced functionality.

2. Key Differences Analysis

OnePlus 9 Advantages:

  • Higher Resolution Wide Angle Camera: The 50MP ultrawide sensor captures more detail than the Xiaomi 13T's 13MP sensor, especially useful for landscape or group shots.
  • 8K Video Recording: Useful for high-resolution video capture, though file sizes are large, and not every user needs it.
  • Wireless Charging: Adds convenience for users with wireless charging pads.
  • Black and White Lens: Offers creative options for black-and-white photography.
  • More Microphones: 3 microphones versus 2 on the Xiaomi 13T, potentially better audio quality in recordings or calls.

Xiaomi 13T Advantages:

  • Newer and Longer Support: Launched much later, so it will receive software updates for a longer period.
  • Brighter Display: Significantly better outdoor visibility due to much higher brightness.
  • Larger Battery: Expected to last longer on a single charge.
  • Dedicated Telephoto/Portrait Lens: Adds versatility for zoom and portrait photography.
  • Higher Resolution Selfie Camera: Better selfie capture due to more megapixels.
  • Larger Selfie Camera Sensor: Allows better low-light selfie quality.
  • Faster refresh rate: Slightly smoother visuals
  • eSIM support: Provides more flexibility with carrier switching
  • More Storage: Offers up to 512 GB of storage space, double of the OnePlus 9's maximum.
  • Hi-Res Audio: Support for high quality audio files.
  • More Accurate GPS: Supports more satellite systems for better location data.

Significant Trade-offs:

  • OnePlus 9 sacrifices battery life and outdoor screen visibility for higher resolution ultrawide camera and wireless charging.
  • Xiaomi 13T sacrifices wireless charging and a higher-resolution ultrawide camera for better battery life, brighter display, and telephoto/portrait lens.

3. User Profiles & Recommendations

OnePlus 9 Ideal User:

  • Photography Enthusiasts (Wide-Angle Focus): Those who value a high-resolution ultrawide camera for landscape or group shots, and who use the black and white sensor.
  • Users who prioritize wireless charging.
  • Video Creators: Users who may need 8K recording capabilities.
  • Users who need better audio capture: If they record a lot of audio, use their phones for meetings or calls, they may benefit from the extra microphone.

Xiaomi 13T Ideal User:

  • Outdoor Users: Those who need excellent screen visibility in bright sunlight.
  • Casual Photographers: Those who prioritize versatile camera options with telephoto/portrait lenses.
  • Power Users: Those who require long battery life and don't want to charge their phone too often.
  • Users who want longer software support.
  • High storage users: Those who need to store a lot of files, photos, videos etc.
  • Mobile gamers: May benefit from the high refresh rate
  • Those who require precise location data: The more accurate GPS is very helpful

Price-to-Value: The Xiaomi 13T likely provides a better price-to-value proposition due to its newer features and longer software support. OnePlus 9 might be cheaper now due to its age but also be lacking compared to its competition.

4. Decision Framework

Key Questions to Consider:

  1. How important is outdoor visibility to you? (Xiaomi 13T has a significantly brighter display)
  2. Do you prioritize wireless charging or longer battery life? (OnePlus 9 has wireless charging; Xiaomi 13T has larger battery)
  3. Which camera versatility do you value most, ultrawide or telephoto? (OnePlus 9 has better ultrawide; Xiaomi 13T has dedicated telephoto/portrait)

Scenario-Based Recommendations:

  • Scenario 1: Frequent outdoor use: Choose the Xiaomi 13T for its superior display brightness and better battery life.
  • Scenario 2: Photography with ultrawide and 8K video recording: Choose the OnePlus 9 for its higher resolution ultrawide lens and 8k video option.
  • Scenario 3: Balanced use, long software support: Choose the Xiaomi 13T for its newer features and longer software updates.
  • Scenario 4: High data usage: Choose the Xiaomi 13T because it has double the available storage.

My Choice and Why

My Choice: I would choose the Xiaomi 13T.

Reasoning:

While the OnePlus 9 offers a higher resolution ultrawide camera and wireless charging, the Xiaomi 13T presents a more compelling package for several reasons:

  1. Brighter Display: As someone who spends time outdoors, the drastically brighter display on the Xiaomi 13T is a significant advantage. This makes using the phone in sunlight much easier and enjoyable.
  2. Longer Software Support: Given that the Xiaomi 13T is a much newer phone, I expect it to receive software updates for a longer duration, which would prolong its usability and security.
  3. Versatile Camera System: While I appreciate a good ultrawide camera, I value having a telephoto/portrait lens for capturing diverse shots. The Xiaomi 13T's dedicated lens adds significant flexibility.
  4. Larger Battery: I prefer a phone that lasts all day without worrying about needing a charge, and the Xiaomi 13T's larger battery makes it better for my typical use.
  5. Overall Value: Considering all the specs, the Xiaomi 13T provides a more comprehensive set of features for the current price compared to the older OnePlus 9.

While I acknowledge that the OnePlus 9 has some advantages in terms of microphone quality and wireless charging, the Xiaomi 13T has an edge in the features that are more crucial for me.

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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Bridging technical complexity with engaging, accessible narratives.