Xiaomi 12 vs OnePlus 9RT

Here we compared two flagship smartphones: the 6.28-inch Xiaomi 12 (with Qualcomm Snapdragon 8 Gen 1) that was released on December 28, 2021, against the OnePlus 9RT, which is powered by Qualcomm Snapdragon 888 5G and came out 3 months before. 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 12
  • Supports wireless charging up to 50W
  • Slow-motion recording at 1920FPS
  • 26% better performance in AnTuTu Benchmark (968K versus 769K)
  • Reverse charging feature
  • 32% faster in single-core GeekBench 5 test: 1241 and 937 points
  • Weighs 18.5 grams less
  • Has a built-in infrared port
Reasons to consider the OnePlus 9RT
  • Has a 0.34 inch larger screen size
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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

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Price

Tests and specifications

Comparison table of technical specifications and tests

Display

Type AMOLED AMOLED
Size 6.28 inches 6.62 inches
Resolution 1080 x 2400 pixels 1080 x 2400 pixels
Aspect ratio 20:9 20:9
PPI 419 ppi 397 ppi
Refresh rate 120 Hz 120 Hz
Max rated brightness 500 nits 500 nits
Max rated brightness in HDR 1100 nits 1300 nits
HDR support Yes, HDR10+ Yes, HDR10+
Screen protection Gorilla Glass Victus Corning Gorilla Glass 5
Screen-to-body ratio 89.2% 87.9%
Display features - DCI-P3
- Always-On Display
- DC Dimming
- DCI-P3
- Always-On Display
Peak brightness test (auto)
902 nits

Design and build

Height 152.7 mm (6.01 inches) 162.2 mm (6.39 inches)
Width 69.9 mm (2.75 inches) 74.6 mm (2.94 inches)
Thickness 8.16 mm (0.32 inches) 8.3 mm (0.33 inches)
Weight 180 g (6.35 oz) 198.5 g (7 oz)
Waterproof No No
Rear material Glass Glass
Frame material Metal Metal
Colors Black, Blue, Pink Black, Silver, Blue
Fingerprint scanner Yes, in-display Yes, in-display
Screen-to-body ratio
Xiaomi 12 +1%
89.2%
87.9%

Performance

Tests of Xiaomi 12 and OnePlus 9RT in the benchmarks
SoC
Chipset Qualcomm Snapdragon 8 Gen 1 Qualcomm Snapdragon 888 5G
Max. clock 3000 MHz 2840 MHz
CPU cores 8 (1 + 3 + 4) 8 (1 + 3 + 4)
Architecture - 4 cores at 1.8 GHz: Cortex-A510
- 3 cores at 2.5 GHz: Cortex-A710
- 1 core at 3 GHz: Cortex-X2
- 4 cores at 1.8 GHz: Kryo 680 Silver (Cortex-A55)
- 3 cores at 2.42 GHz: Kryo 680 Gold (Cortex-A78)
- 1 core at 2.84 GHz: Kryo 680 Prime (Cortex-X1)
L3 cache 6 MB 4 MB
Lithography process 4 nanometers 5 nanometers
Graphics Adreno 730 Adreno 660
GPU clock 818 MHz 840 MHz
FLOPS ~2236 GFLOPS ~1720 GFLOPS

Benchmarks

Geekbench 5 (Single-Core)
Xiaomi 12 +32%
1241
Geekbench 5 (Multi-Core)
Xiaomi 12 +16%
3864
AnTuTu Benchmark 9
Xiaomi 12 +26%
968805
769017
CPU 218182 173969
GPU 399246 313467
Memory 171958 124024
UX 170121 153627
Total score 968805 769017
3DMark Wild Life Performance
Xiaomi 12 +55%
8935
Stability 57% 66%
Graphics test 53 FPS 34 FPS
Graphics score 8935 5782
PCMark 3.0 score 13092 -
AnTuTu Benchmark 9 Android Results (53rd and 123rd place)
Sources: 3DMark [3], [4]

Memory

RAM
RAM size 8, 12 GB 8, 12 GB
Memory type LPDDR5 LPDDR5
Memory clock 3200 MHz 2750 MHz
Channels 4 4
Storage
Storage size 128, 256 GB 128, 256 GB
Storage type UFS 3.1 UFS 3.1
Memory card No No

Software

Operating system Android 12 (Can be upgraded to Android 13) Android 12 (Can be upgraded to Android 13)
ROM MIUI 14 OxygenOS 13

Battery

Specifications
Capacity 4500 mAh 4500 mAh
Charge power 67 W 65 W
Battery type Li-Po Li-Po
Replaceable No No
Wireless charging Yes (50 W) No
Reverse charging Yes, (wireless) No
Fast charging Yes (87% in 30 min) Yes (50% in 15 min)
Full charging time 0:46 hr 0:38 hr
Battery life tests
Web browsing 09:04 hr -
Watching video 13:03 hr -
Gaming 04:49 hr -
Standby 70 hr -
General battery life
25:34 hr

Camera

Specs and camera test of smartphones
Main camera
Matrix 50 megapixels 50 megapixels
Image resolution 8192 x 6144 8700 x 5800
Zoom Digital Digital
Flash Dual LED Dual LED
Stabilization Optical Optical
8K video recording Up to 24FPS No
4K video recording Up to 60FPS Up to 60FPS
1080p video recording Up to 60FPS Up to 60FPS
Slow motion 1920 FPS (720p) 480 FPS (720p)
Angle of widest lens 123° 123°
Lenses 3 (50 MP + 13 MP + 5 MP) 3 (50 MP + 16 MP + 2 MP)
Wide (main) lens - 50 MP
- Aperture: f/1.9
- Focal length: 26 mm
- Pixel size: 1 micron
- Sensor: 1/1.56", Sony IMX766 (Exmor-RS CMOS)
- Phase autofocus (Dual Pixel)
- Optical stabilization
- 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 - 13 MP
- Aperture: f/2.4
- Pixel size: 1.12 micron
- Sensor: 1/3.06", OmniVision OV13B10 (CMOS)
- 16 MP
- Aperture: f/2.2
- Focal length: 14 mm
- Pixel size: 1 micron
- Sensor: 1/3.09", Sony IMX481 (Exmor-RS CMOS)
- Phase autofocus
Macro lens - 5 MP
- Aperture: f/2.4
- Focal length: 50 mm
- Phase autofocus
- Optical stabilization
- 2 MP
- Aperture: f/2.4
Camera features - Bokeh mode
- Pro mode
- Bokeh mode
- Pro mode
- RAW support
Samples Photo samples of Xiaomi 12 from DxOMark -
Selfie camera
Megapixels 32 megapixels 16 megapixels
Image resolution 6528 x 4896 4920 x 3264
Aperture f/2.4 f/2.0
Focal length 26 mm -
Pixel size 0.7 microns 1 microns
Sensor type CMOS CMOS
Sensor size - 1/3.06"
Video resolution 1080p (Full HD) at 60 FPS 1080p (Full HD) at 30 FPS

DxOMark camera tests

Photo quality
Video quality
Generic camera score

Connectivity

Wi-Fi standard 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 MiMO
- 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 2
USB features - Charging
- USB-Storage mode
- OTG
- Charging
- USB-Storage mode
- OTG
GPS GPS, GLONASS, Beidou, Galileo, NAVIC GPS, GLONASS, Beidou, Galileo
NFC* Yes Yes
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 20
5G support Yes Yes

Sound

Speakers Stereo Stereo
Headphone audio jack No No
FM radio No No
Dolby Atmos Yes Yes

Other

Category Flagship Flagship
Announced December 2021 October 2021
Release date December 2021 October 2021
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Barometer
- 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

These smartphones have a lot in common, but we would recommend the Xiaomi 12. It has a better performance and camera.

Cast your vote

So, which phone would you choose?
16 (39%)
25 (61%)
Total votes: 41

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