Home Phone comparison Xiaomi 12 and OnePlus 9 - Which is better?

Xiaomi 12 vs OnePlus 9

65 out 100
Xiaomi 12
VS
63 out 100
OnePlus 9
Xiaomi 12
OnePlus 9

Compared 2 smartphones : Xiaomi 12 Manufactured in December, 2021, with display 6.28 with chipsetQualcomm Snapdragon 8 Gen 1, vs OnePlus 9, Manufactured in March, 2021 with chipsetQualcomm Snapdragon 888 5G. Below are specs, tests, pros and cons for each device

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery Life
  6. Cameras
  7. Comments (0)

Key Differences

Device key advantages
Reasons to choose Xiaomi 12
  • Higher pixel density: 419ppi
  • Lighter design: 180g vs 192g
  • Infrared port
  • Includes charger
Reasons to choose OnePlus 9
  • Larger display: 6.55in
  • Supports newer USB: 3.1 vs 2
  • Supports DisplayPort

Versions

Available versions and configurations
Memory Options - 8/128 GB
- 8/256 GB
- 12/256 GB		 - 8/128 GB
- 12/256 GB

Review

Key Specs Xiaomi 12 and OnePlus 9
Display
Color accuracy, sharpness & brightness
Camera
Main & front camera tests
Performance
App & system performance
Games
3D gaming performance
Battery
Battery life, charging speed & type
Connectivity
Connectivity features
NanoReview Score
Overall score by NanoReview
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Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Xiaomi 12
vs
OnePlus 9

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.28 in 6.55 in
Resolution 1080x2400 pixels 1080x2400 pixels
Aspect ratio 20:9 20:9
Pixel density 419 ppi 402 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (60-120 Hz) Yes
Max brightness 500 nits 500 nits
HDR support Yes HDR10+ Yes HDR10+
Touch Sampling Rate 480 Hz n/a
Screen-to-body ratio 89.3 % 87.3 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi 12
887 nits
OnePlus 9
818 nits
sRGB gamutn/a98.9 %
PWM (Flicker)n/a323 Hz
Response timen/a13 ms
Contrastn/a∞ Infinite
Sources: NotebookCheck [OnePlus 9]

Design & Build

Design and ergonomics comparison
Height 152.7 mm (6.01 in) 160 mm (6.3 in)
Width 69.9 mm (2.75 in) 74.2 mm (2.92 in)
Thickness 8.16 mm (0.32 in) 8.7 mm (0.34 in)
Weight 180 g (6.35 oz) 192 g (6.77 oz)
Water resistance No No
Back panel Glass Glass
Frame Metal Plastic
Colors - Black
- Blue
- Pink		 - Black
- Blue
- Purple
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Xiaomi 12
89.3 %
OnePlus 9
87.3 %

Performance

Testing Xiaomi 12 and OnePlus 9 In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Gen 1 Qualcomm Snapdragon 888 5G
Max Frequency 3000 MHz 2840 MHz
CPU Cores 8 (1 + 3 + 4) 8 (1 + 3 + 4)
Architecture - 4/1.8 (Cortex-A510)
- 3/2.5 (Cortex-A710)
- 1/3 (Cortex-X2)		 - 4/1.8 (Kryo 680 Silver (Cortex-A55))
- 3/2.42 (Kryo 680 Gold (Cortex-A78))
- 1/2.84 (Kryo 680 Prime (Cortex-X1))
Process Samsung Samsung
Transistor Size 4 nm 5 nm
Neural Processor Hexagon Hexagon 780
Graphics Adreno 730 Adreno 660
GPU Cores 1024 1024
GPU Frequency 818 MHz 840 MHz
FLOPS 1675.3 GFLOPS 1290.2 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 12
1702
OnePlus 9
1489
Geekbench 6 (Multi-Core)
Xiaomi 12
3977
OnePlus 9
3996
Geekbench 6 (Single-Core)17021489
Geekbench 6 (Multi-Core)39773996
Sources: Geekbench v6 [Xiaomi 12]
AnTuTu 10
AnTuTu 10
Xiaomi 12
1187033
OnePlus 9
937505
CPU308025248662
GPU439066308723
Memory237645169685
UX212297210435
NanoReview Score1187033937505
3DMark Wild Life
3DMark Wild Life
Xiaomi 12
8751
OnePlus 9
5761
Max Surface Temp.n/a48.8 °C
Stability60 %55 %
Graphics Test52 fps34 fps
Graphics Score87515761
Sources: 3DMark [Xiaomi 12], [OnePlus 9]
PCMark 3.0
PCMark 3.0
Xiaomi 12
12987
OnePlus 9
12032
Writing score1484015081
Web score1153411112
Video editing74526018
Data manipulation964310751
NanoReview Score1298712032

Memory

RAM
RAM Size - 8 GB
- 12 GB		 - 8 GB
- 12 GB
Memory Type LPDDR5 LPDDR5
Memory Frequency 3200 MHz 2750 MHz
Channels 4 4
Storage
Storage Capacity- 128 GB
- 256 GB		- 128 GB
- 256 GB
Storage TypeUFS 3.1UFS 3.1
Memory CardNoNo

Software

OS Android 12 (Upgradeable to Android 14) Android 11 (Upgradeable to Android 13)
OS Size n/a 35 GB
UI Skin HyperOS 1.0 OxygenOS 13

Battery

Volume 4500 mAh 4500 mAh
Max Charging Power 67 W 65 W
Battery Type Li-Po Li-Po
Removable No No
Wireless Charging Yes (50 W) Yes (15 W)
Reverse Charging Yes (Wireless) No
Fast Charging Yes (87% in 30 min) Yes (100% in 29 min)
Full Charge Time 0:46 h 0:29 h
Battery Life Test
Battery Life
Xiaomi 12
15:58
OnePlus 9
19:38
Web Browsing06:17 h07:52 h
Video Playback10:46 h11:44 h
Games04:42 h04:32 h
Standby Mode71 h96 h

Main camera

Matrix 50 MP 48 MP
Photo resolution 8192x6144 pixels 8000x6000 pixels
Zoom Digital Digital
Flash Dual LED Dual LED
Stabilization Optical Digital
8K Recording Up to 24FPS Yes (Up to 30 fps)
4K Recording Yes (Up to 60 fps) Yes (Up to 120 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 1920 fps (720p) 240 fps (1080p)
Wide-angle lens 123 ° 140 °
Lenses count Standard: 50 MP
Ultra-wide: 13 MP
Macro: 5 MP		 Standard: 48 MP
Ultra-wide: 50 MP
Monochrome: 2 MP
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP48 MP
Aperturef/1.9f/1.8
Focal length26 mm23 mm
SensorSony IMX766Sony IMX689
Sensor size1/1.561/1.43
Pixel size1 μm1.12 μm
AutofocusPhase autofocus (Dual Pixel)Phase autofocus
StabilizationOpticalDigital
Ultra-wide lens
Matrix13 MP50 MP
Aperturef/2.4f/2.2
Focal length12 mm14 mm
SensorOmniVision OV13B10Sony IMX766
Sensor size1/3.061/1.56
Pixel size1.12 μm1 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi 12
118
OnePlus 9
123
Video quality
Xiaomi 12
121
OnePlus 9
104
Overall camera score
Xiaomi 12
113
OnePlus 9
115
Bokeh55n/a
Preview69n/a
Zoom72n/a
Sources: DxOMark [Xiaomi 12], [OnePlus 9]

Front camera

Matrix 32 MP 16 MP
Photo resolution 6528x4896 pixels 4920x3264 pixels
Aperture f/2.4 f/2.0
Focal length 26 mm n/a
Sensor OmniVision OV32B40 Sony IMX471
Sensor size n/a 1/3.06
Pixel size 0.7 μm 1 μm
Autofocus No Phase autofocus
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 60 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 6E (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 5.2 5.2
Bluetooth features LE LE, A2DP
USB type USB Type-C USB Type-C
USB version 2 3.1
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort n/a Yes
GPS - GPS
- GLONASS
- Beidou
- Galileo
- NAVIC		 - GPS
- GLONASS
- Beidou
- Galileo
- SBAS
NFC* Yes Yes
Infrared Port Yes No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850 900 1800 1900 MHzGSM B2, 3, 5, 8
3G BandsWCDMA B1/2/4/5/6/8/19WCDMA B1, 2, 4, 5, 8, 9, 19
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B32/B66)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B30/B32/B38/B39/B40/B41/B46/B48/B66/B71)
LTE category2020
5G SupportYesYes

Sound

Speakers Stereo Stereo
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Xiaomi 12
n/a
OnePlus 9
83 dB

Other

Class Flagship Flagship
Announced December, 2021 yr March, 2021 yr
Release Date December, 2021 yr March, 2021 yr
Launch Price ($) 580 730
Sensors - Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 67 W n/a
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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