Xiaomi Mi 11 vs OnePlus 9RT 5G - Detailed Phone Comparison

Detailed Comparison

Specification
Xiaomi Mi 11
Xiaomi Mi 11
Xiaomi
OnePlus 9RT 5G
OnePlus 9RT 5G
Oneplus

General

Launch Date January 1, 2021 October 19, 2021
Release Year 2021 2021

Physical

Volume 99.28 cm³ 100.43 cm³
Screen Size to Weight Ratio 3.47 "/g 3.34 "/g
Weight 196 g 198.5 g
Height 164.3 mm 162.2 mm
Width 74.6 mm 74.6 mm
Thickness 8.1 mm 8.3 mm
Foldable Design No No
Available Colors
  • Gold
  • Cloud White
  • Violet
  • Midnight Gray
  • Horizon Blue
  • Special Edition Blue
  • Blue
  • Hacker Black
  • Nano Silver

Display

Screen Size 6.81 " 6.62 "
Resolution 1440 x 3200 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 91.4 % 87.4 %
Pixel Density 515 PPI 397 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness 1500 nits N/A

Hardware

Battery Capacity per Screen Area 99.19 mAh/in² 102.68 mAh/in²
Battery Density 46.33 mAh/cm³ 44.81 mAh/cm³
Battery Capacity 4600 mAh 4500 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8350 Snapdragon 888 5G (5 nm) Qualcomm SM8350 Snapdragon 888 5G (5 nm)
CPU Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55 Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)
GPU Adreno 660 Adreno 660

Connectivity

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

Software

Operating System Android Android
Initial OS Version 11 11
Maximum OS Version 14 13

Comparison Summary

1. Specifications Comparison

FeatureXiaomi Mi 11OnePlus 9RT 5GPractical Impact
Design
Dimensions164.3 x 74.6 x 8.1 mm162.2 x 74.6 x 8.3 mmXiaomi is slightly taller, OnePlus slightly thicker; negligible real-world difference.
Weight196g198.5gBoth are similarly weighted, feeling almost identical in hand.
Display
Size6.81"6.62"Xiaomi offers a slightly larger display for a more immersive viewing experience.
Resolution1440 x 32001080 x 2400Xiaomi’s display is noticeably sharper with finer details.
Pixel Density515 ppi397 ppiXiaomi screen is sharper making text and images look crisper.
TechnologyAMOLEDAMOLEDBoth offer vibrant colors and deep blacks.
Refresh Rate120Hz120HzSmooth scrolling and animations on both.
Brightness1500 nits0 nitsXiaomi is much better in bright sunlight or outdoor use; OnePlus brightness is not specified making it difficult to assess its performance in various lighting conditions.
Performance
ChipsetSnapdragon 888 5GSnapdragon 888 5GIdentical processing power for day-to-day tasks and gaming.
AnTuTu Score806,139881,700OnePlus 9RT 5G is marginally faster in benchmarks, offering slight performance edge in demanding tasks.
GPUAdreno 660Adreno 660Identical graphics performance for gaming and media.
Camera
Rear (Main)108MP, f/1.85, 1/1.33"50MP, f/1.8, 1/1.56"Xiaomi has higher resolution sensor; OnePlus has larger pixels and wider aperture, likely better low-light performance.
Rear (Wide)13MP, f/2.3, 1/3.06"16MP, f/2.2, 1/3.09"OnePlus offers a wider angle and slightly more detailed shots
Rear (Macro)5MP, f/2.0, 1/5"2MP, f/2.4Xiaomi takes higher resolution macro shots and has wider aperture
Front (Selfie)20MP, f/2.3, 1/3.4"16MP, f/2.4, 1/3.13"Xiaomi has higher resolution and wider aperture while OnePlus has larger sensor
VideoUp to 8K@24/30fpsUp to 4K@30/60fpsXiaomi can record higher resolution video; both have great stabilization
DXOMark (Selfie)112 (Photo 100, Video 133)Not TestedXiaomi selfie camera performs well, OnePlus performance is not available
FeaturesMore features, including Laser AF and 8K videoIncludes PDAF, exposure control, night modeXiaomi provides higher-end video features, OnePlus offers better low-light capture
Battery
Capacity4600 mAh4500 mAhSimilar capacity; battery life will likely be comparable under normal usage conditions.
Charging55W wired, 50W wireless65W wiredOnePlus charges faster wired; Xiaomi has wireless charging
FeaturesWireless charging, Reverse ChargingDouble battery cellsXiaomi offers more flexible charging options; both phones use dual cells.
Software
OSAndroid 11 (upgradable to 14)Android 11 (upgradable to 13)Xiaomi will have one additional major OS update.
Connectivity
Wi-FiWi-Fi 6Wi-Fi 6Both have the same modern Wi-Fi capabilities.
Bluetooth5.2, AptX, LDAC5.2, AptX, LDACSimilar high-quality Bluetooth audio on both.
GPSMore systems, dual-bandDual-bandXiaomi may have more accurate positioning in some locations due to additional satellite support.
Storage
Internal128/256 GB128/256 GBIdentical storage options; Plenty for most users.
RAM8/12 GB8/12 GBSufficient RAM for all kinds of multitasking and gaming.
ExpandableNoNoNeither phone offers expandable storage.
Audio
QualityHi-Res Audio, Stereo SpeakersDolby Atmos, Stereo SpeakersOnePlus provides better spatial sound and noise cancellation during calls; Xiaomi has Hi-Res certified audio for high-fidelity listening.
Security
FingerprintBasic SensorBasic SensorBoth use basic fingerprint sensor for basic biometric unlock.
Build Quality
Screen ProtectionGorilla Glass VictusUnknownXiaomi has better screen scratch and impact protection
SensorsHeart rate, virtual proximityStandard proximityXiaomi offers Heart Rate sensor for health tracking and virtual proximity sensor; OnePlus has a standard proximity sensor

2. Key Differences Analysis

Xiaomi Mi 11 Advantages:

  • Superior Display: Higher resolution and brightness make it noticeably sharper and more visible in bright sunlight.
  • Higher Quality Video Recording: Offers 8K recording capabilities for high quality video creation.
  • Wireless Charging: Includes fast wireless and reverse charging, providing more flexibility.
  • Heart Rate Sensor: Additional biometric sensor for health tracking.
  • Superior Screen Protection: Corning Gorilla Glass Victus provides better scratch and impact resistance.
  • More GPS systems: Offers more GPS options for more accurate tracking.
  • Better Macro Camera: Offers better resolution and wider aperture for better macro shots
  • Higher OS upgrade: One additional major OS upgrade compared to OnePlus.

OnePlus 9RT 5G Advantages:

  • Marginally Better Performance: Benchmarks show a slightly better performance, resulting in a more fluid user experience with demanding apps and games.
  • Faster Wired Charging: 65W charging replenishes the battery more quickly.
  • Better Wide Angle Camera: Offers slightly higher resolution.
  • Dolby Atmos: Has a spatial and more immersive sound technology for music and movies
  • Better Low Light Camera Performance: Larger aperture and pixels provide better low light performance.
  • Phase Detection Autofocus (PDAF): Offers slightly faster and more accurate autofocus, ideal for fast-moving subjects.
  • Night Mode: Optimized for better low-light photography
  • Better Noise Cancellation: Has a dedicated noise cancellation microphone

Trade-offs:

  • Xiaomi trades slightly lower benchmark scores for a superior display and wireless charging options.
  • OnePlus trades a slightly faster charging for a lower quality screen compared to the Xiaomi.
  • Xiaomi offers higher resolution video quality, while OnePlus is optimized for slightly better low-light and wide-angle photo performance.

3. User Profiles & Recommendations

Xiaomi Mi 11 Ideal User:

  • Media Consumers: Users who prioritize high-quality displays for videos, movies, and content creation.
  • Outdoor Users: Individuals who need excellent screen visibility in bright sunlight.
  • Photography and Videography Enthusiasts: Those seeking versatile video capabilities with 8K recording and advanced features.
  • Power Users: Those who appreciate the convenience of wireless charging and additional features like heart rate tracking
  • Long-term users: Those seeking future OS upgrades for longer device life

Use Cases:

  • Watching HDR videos on the go.
  • Editing photos and videos.
  • Mobile gaming that benefits from a high refresh rate display.
  • Health and fitness tracking.
  • High quality videography on the go

OnePlus 9RT 5G Ideal User:

  • Gamers: Users who value a slightly better benchmark score for slightly faster loading and performance.
  • On-the-Go Chargers: Individuals who need rapid wired charging.
  • Casual Photographers: Those looking for a versatile camera system, especially for low light photography.
  • Users who value audio: Individuals who desire immersive sound experiences, and noise-free calls
  • Users looking for slightly better performance: Those who need more resource-demanding tasks like gaming.

Use Cases:

  • Gaming on the go.
  • Capturing detailed photos in various lighting conditions, particularly low-light.
  • Quickly charging the phone during short breaks.
  • Watching movies or listening to music with enhanced Dolby Atmos.

Price-to-Value Ratio:

  • Assuming similar pricing, the Xiaomi Mi 11 offers better value for users valuing the display, camera video capabilities, and wireless charging options.
  • The OnePlus 9RT 5G offers better value for those focused on slightly better performance, slightly faster charging, and slightly better low-light photo and audio quality.

4. Decision Framework

Key Questions for Buyers:

  1. Display Preference: Do you prioritize higher resolution and brightness for media consumption, or is a standard FHD+ display sufficient?
  2. Charging Habits: Is wireless charging a must-have, or do you prefer faster wired charging?
  3. Camera Use: Are you seeking higher-end video quality with more features, or better low-light performance?

Scenario-Based Recommendations:

  • Scenario 1 (Media Enthusiast): If you frequently watch videos and prefer a high-quality display, the Xiaomi Mi 11 is the better choice.
  • Scenario 2 (Gamer & On-the-Go User): If you prioritize slightly better performance, faster wired charging, and slightly better low-light photography, the OnePlus 9RT 5G is more suitable.
  • Scenario 3 (Versatile Use): If you need a balanced phone with all-around good performance, the Xiaomi Mi 11 is better due to the higher-end features it offers.

My Choice

If I were choosing between these two phones, I would pick the Xiaomi Mi 11.

Here's why:

  1. Superior Display: The higher resolution and significantly higher brightness of the Xiaomi’s display make it more enjoyable for watching videos, browsing, and reading, particularly outdoors. This is a feature I value highly.
  2. More GPS Options: The additional GPS systems will allow for a better and more precise location tracking, which is very useful for me.
  3. Versatility of Features: The combination of 8K video, wireless charging, heart rate sensor, and superior screen protection offers more flexibility and future-proofing. These are very useful features to have.
  4. Balanced Performance: While the OnePlus 9RT 5G may have a slightly higher benchmark score, the Xiaomi Mi 11 provides excellent performance for daily tasks, and the advantages of display, additional sensors and better camera features outweigh the marginal performance difference.
  5. Long term usage: The additional OS upgrade allows for the phone to stay relevant and secure for a longer period of time.

While the OnePlus 9RT 5G is a solid phone, the Xiaomi Mi 11 better suits my needs due to its superior display, more advanced features and slightly more versatility. The slightly slower charging is a trade-off I'm willing to make for the added benefits.

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.