Xiaomi Mi 11X vs Oppo Realme 9 Pro Plus

Here we compared two mid-range smartphones: the 6.67-inch Xiaomi Mi 11X (with Qualcomm Snapdragon 870 5G) that was released on April 23, 2021, against the Oppo Realme 9 Pro Plus, which is powered by MediaTek Dimensity 920 and came out 10 months after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the gadgets.

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Xiaomi Mi 11X
  • Water-resistant body (IP53 classification)
  • Higher display refresh rate – 120 Hz
  • 34% better performance in AnTuTu Benchmark (677K versus 506K)
  • Uses a faster type of memory: LPDDR5 2750 MHz
  • Faster storage type - UFS 3.1 versus UFS 2.2
  • 25% faster in single-core GeekBench 5 test: 1034 and 825 points
  • Has a built-in infrared port
Reasons to consider the Oppo Realme 9 Pro Plus
  • Newer Bluetooth version (v5.2)
  • Optical image stabilization
  • Reverse charging feature
  • The phone is 10-months newer
  • Includes a 3.5 mm headphone audio jack port

Review

Display
Screen quality, color accuracy, brightness
Performance
CPU/GPU performance in apps and games
Battery
Battery life, charging type and speed
Camera
Photo and video recording quality
Connectivity
Networks, ports, data transmission
NanoReview score
Final comparison evaluation

Value for money

You can enter your local price of these phones (in USD or any other currency) and click on the "Calculate" button to see which one has a better value for money.
Price

Tests and specifications

Comparison table of technical specifications and tests

Display

Type Super AMOLED Super AMOLED
Size 6.67 inches 6.4 inches
Resolution 1080 x 2400 pixels 1080 x 2400 pixels
Aspect ratio 20:9 20:9
PPI 395 ppi 411 ppi
Refresh rate 120 Hz 90 Hz
Max rated brightness 500 nits 450 nits
Max rated brightness in HDR 1300 nits 600 nits
HDR support Yes, HDR10+ Yes, HDR10
Screen protection Corning Gorilla Glass 5 Corning Gorilla Glass 5
Screen-to-body ratio 85.9% 84.2%
Display features - DCI-P3
- Always-On Display
- DC Dimming
- DCI-P3
- Always-On Display
- DC Dimming
Display tests
RGB color space - 95.9%
PWM - 218 Hz
Response time - 9 ms
Contrast - ∞ Infinity
Peak brightness test (auto)
n/a
Sources: NotebookCheck [3]

Design and build

Height 163.7 mm (6.44 inches) 160.2 mm (6.31 inches)
Width 76.4 mm (3.01 inches) 73.3 mm (2.89 inches)
Thickness 7.8 mm (0.31 inches) 7.99 mm (0.31 inches)
Weight 196 gramm (6.91 oz) 182 gramm (6.42 oz)
Waterproof IP53 No
Rear material Glass Glass
Frame material Plastic Plastic
Colors White, Black, Silver Black, Blue, Green
Fingerprint scanner Yes, in home button Yes, in-display
Screen-to-body ratio
Mi 11X +2%
85.9%

Performance

Tests of Xiaomi Mi 11X and Oppo Realme 9 Pro Plus in the benchmarks
SoC
Chipset Qualcomm Snapdragon 870 5G MediaTek Dimensity 920
Max. clock 3200 MHz 2500 MHz
CPU cores 8 (1 + 3 + 4) 8 (2 + 6)
Architecture - 4 cores at 1.8 GHz: Kryo 585 Silver (Cortex-A55)
- 3 cores at 2.42 GHz: Kryo 585 Gold (Cortex-A77)
- 1 core at 3.2 GHz: Kryo 585 Prime (Cortex-A77)
- 6 cores at 2 GHz: Cortex-A55
- 2 cores at 2.5 GHz: Cortex-A78
L3 cache 4 MB 2 MB
Lithography process 7 nanometers 6 nanometers
Graphics Adreno 650 Mali-G68 MC4
GPU clock 675 MHz 950 MHz
FLOPS ~1372 GFLOPS ~684 GFLOPS
Memory
RAM size 6, 8 GB 6, 8 GB
Memory type LPDDR5 LPDDR4X
Memory clock 2750 MHz 2133 MHz
Channels 2 2
Storage
Storage size 128 GB 128, 256 GB
Storage type UFS 3.1 UFS 2.2
Memory card No No

Benchmarks

Geekbench 5 (Single-Core)
Mi 11X +25%
1034
Geekbench 5 (Multi-Core)
Mi 11X +50%
3511
AnTuTu Benchmark 9
Mi 11X +34%
677805
CPU 190864 137857
GPU 232290 140090
Memory 104365 100175
UX 147242 127716
Total score 677805 506256
3DMark Wild Life Performance
Mi 11X +82%
4185
Stability 83% 99%
Graphics test 25 FPS 13 FPS
Graphics score 4185 2297
PCMark 3.0 score 12339 11389
Sources: 3DMark [3], [4]

Software

Operating system Android 11 (Can be upgraded to Android 12) Android 12
ROM MIUI 13 Realme UI 3.0
OS size - 15 GB

Battery

Specifications
Capacity 4520 mAh 4500 mAh
Charge power 33 W 60 W
Battery type Li-Ion Li-Po
Replaceable No No
Wireless charging No No
Reverse charging No Yes
Fast charging Yes (70% in 30 min) Yes (77% in 30 min)
Full charging time 0:55 hr 0:49 hr
Battery life tests
Web browsing - 12:29 hr
Watching video - 14:47 hr
Gaming - 05:58 hr
Standby - 96 hr
General battery life
n/a

Camera

Specs and camera test of smartphones
Main camera
Matrix 48 megapixels 50 megapixels
Image resolution 8000 x 6000 8700 x 5800
Zoom Digital Digital
Flash LED LED
Stabilization Digital Optical
8K video recording No No
4K video recording Up to 30FPS Up to 30FPS
1080p video recording Up to 60FPS Up to 60FPS
Slow motion 960 FPS (1080p) 960 FPS (720p)
Angle of widest lens 119° 119°
Lenses 3 (48 MP + 8 MP + 5 MP) 3 (50 MP + 8 MP + 4 MP)
Wide (main) lens - 48 MP
- Aperture: f/1.8
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Sensor: 1/2.0", Sony IMX582 (Exmor-RS CMOS)
- Phase autofocus
- 50 MP
- Aperture: f/1.8
- Focal length: 24 mm
- Pixel size: 1 micron
- Sensor: 1/1.56", Sony IMX766 (Exmor-RS CMOS)
- Phase autofocus
- Optical stabilization
Ultra-wide lens - 8 MP
- Aperture: f/2.2
- Pixel size: 1.12 micron
- Sensor: 1/4.0", Sony IMX355 (Exmor-RS CMOS)
- 8 MP
- Aperture: f/2.2
- Focal length: 16 mm
- Pixel size: 1.14 micron
- Sensor: 1/2.8", Sony IMX355 (Exmor-RS CMOS)
Macro lens - 5 MP
- Aperture: f/2.4
- Focal length: 50 mm
- Pixel size: 1.12 micron
- Sensor: 1/5.0", Samsung S5K5E9 (ISOCELL CMOS)
- Phase autofocus
- 4 MP
- Aperture: f/2.4
- Focal length: 21.8 mm
- Pixel size: 1.75 micron
- Sensor: 1/5", GalaxyCore GC02M1 (CMOS)
Camera features - Bokeh mode
- Pro mode
- Bokeh mode
- Pro mode
- RAW support
Selfie camera
Megapixels 20 megapixels 16 megapixels
Image resolution 4608 x 3456 4920 x 3264
Aperture f/2.5 f/2.4
Focal length 26 mm 27 mm
Pixel size 0.8 microns 1 microns
Sensor type CMOS Exmor-RS CMOS
Sensor size 1/3.4" 1/3.13"
Video resolution 1080p (Full HD) at 30 FPS 1080p (Full HD) at 30 FPS

Connectivity

Wi-Fi standard Wi-Fi 6 (802.11 a/b/g/n/ac/ax) Wi-Fi 6 (802.11 a/b/g/n/ac/ax)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
- Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5.1 5.2
Bluetooth features LE, HID, A2DP LE, A2DP
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB-Storage mode
- OTG
- Charging
- USB-Storage mode
- OTG
GPS GPS, GLONASS, Beidou, Galileo GPS, GLONASS, Beidou, Galileo
NFC* No Depends on the region
Infrared port Yes No
Network
Number of SIM* 2 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* No No
Hybrid slot No No
LTE Cat* 20 -
5G support Yes Yes

Sound

Speakers Stereo Stereo
Headphone audio jack No Yes
FM radio No No
Dolby Atmos Yes Yes
Speakers test
Max. loudness

Other

Category Mid-range Mid-range
Announced April 2021 February 2022
Release date April 2021 February 2022
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

If the performance, software, and design are more important to you, then choose the Xiaomi Mi 11X. But if the camera and sound are more of a priority – go for the Oppo Realme 9 Pro Plus.

Cast your vote

So, which phone would you choose?
5 (62.5%)
3 (37.5%)
Total votes: 8

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