Home Phone comparison Realme P3 Ultra 5G and Xiaomi 12X - Which is better?

Realme P3 Ultra 5G vs Xiaomi 12X

75 out 100
Realme P3 Ultra 5G
VS
63 out 100
Xiaomi 12X
Realme P3 Ultra 5G
Xiaomi 12X

Compared 2 smartphones : Realme P3 Ultra 5G Manufactured in March, 2025, with display 6.83 with chipsetMediaTek Dimensity 8350 Ultra, vs Xiaomi 12X, Manufactured in December, 2021 with chipsetQualcomm Snapdragon 870. 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 Realme P3 Ultra 5G
  • Larger display: 6.83in
  • Higher pixel density: 450ppi
  • Higher battery capacity: 6000mAh vs 4500mAh
  • Newer Bluetooth version: 5.4 vs 5.1
Reasons to choose Xiaomi 12X
  • Lighter design: 176g vs 183g

Versions

Available versions and configurations
Memory Options - 8/128 GB
- 8/256 GB
- 12/256 GB
- 12/512 GB		 - 8/128 GB
- 8/256 GB
- 12/256 GB

Review

Key Specs Realme P3 Ultra 5G and Xiaomi 12X
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
Adjust each parameter’s importance to find the best match for you.
Customize your score
Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Realme P3 Ultra 5G
vs
Xiaomi 12X

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.83 in 6.28 in
Resolution 1272x2800 pixels 1080x2400 pixels
Aspect ratio 20:9 20:9
Pixel density 450 ppi 419 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (60-120 Hz) Yes
Max brightness 1500 nits 500 nits
HDR support n/a Yes HDR10+
Touch Sampling Rate 240 Hz 480 Hz
Screen-to-body ratio 89.8 % 89.3 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Realme P3 Ultra 5G
n/a
Xiaomi 12X
924 nits
sRGB gamutn/a98.6 %
PWM (Flicker)n/a523 Hz
Response timen/a1 ms
Contrastn/a∞ Infinite
Sources: NotebookCheck [Xiaomi 12X]

Design & Build

Design and ergonomics comparison
Height 163.1 mm (6.42 in) 152.7 mm (6.01 in)
Width 76.9 mm (3.03 in) 69.9 mm (2.75 in)
Thickness 7.38 mm (0.29 in) 8.16 mm (0.32 in)
Weight 183 g (6.46 oz) 176 g (6.21 oz)
Water resistance IP69 No
Back panel Plastic Glass
Frame Metal Metal
Colors - White
- Blue
- Red		 - Black
- Blue
- Pink
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Realme P3 Ultra 5G
89.8 %
Xiaomi 12X
89.3 %

Performance

Testing Realme P3 Ultra 5G and Xiaomi 12X In benchmarks
Processor
Chipset MediaTek Dimensity 8350 Ultra Qualcomm Snapdragon 870
Max Frequency 3350 MHz 3200 MHz
CPU Cores 8 (1 + 3 + 4) 8 (1 + 3 + 4)
Architecture - 4/2.2 (Cortex-A510)
- 3/3.2 (Cortex-A715)
- 1/3.35 (Cortex-A715)		 - 4/1.8 (Kryo 585 Silver (Cortex-A55))
- 3/2.42 (Kryo 585 Gold (Cortex-A77))
- 1/3.2 (Kryo 585 Prime (Cortex-A77))
Process TSMC TSMC
Transistor Size 4 nm 7 nm
Neural Processor MediaTek APU 780 Hexagon 698
Graphics Mali-G615 MP6 Adreno 650
GPU Cores 768 768
GPU Frequency 1400 MHz 670 MHz
FLOPS 2150.4 GFLOPS 1029.1 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Realme P3 Ultra 5G
1216
Xiaomi 12X
1297
Geekbench 6 (Multi-Core)
Realme P3 Ultra 5G
4012
Xiaomi 12X
3428
Geekbench 6 (Single-Core)12161297
Geekbench 6 (Multi-Core)40123428
Geekbench Compute (GPU)8611n/a
Sources: Geekbench v6 [Realme P3 Ultra 5G], [Xiaomi 12X]
AnTuTu 10
AnTuTu 10
Realme P3 Ultra 5G
1433933
Xiaomi 12X
806389
CPU318871237508
GPU551493235693
Memory276524153330
UX287045179858
NanoReview Score1433933806389
3DMark Wild Life
3DMark Wild Life
Realme P3 Ultra 5G
n/a
Xiaomi 12X
4251
Max Surface Temp.n/a37.6 °C
Stabilityn/a98 %
Graphics Testn/a25 fps
Graphics Scoren/a4251
Sources: 3DMark [Xiaomi 12X]

Memory

RAM
RAM Size - 8 GB
- 12 GB		 - 8 GB
- 12 GB
Memory Type LPDDR5X LPDDR5
Memory Frequency 4200 MHz n/a
Channels 4 2
Storage
Storage Capacity- 128 GB
- 256 GB		- 128 GB
- 256 GB
Storage TypeUFS 3.1UFS 3.1
Memory CardNoNo

Software

OS Android 15 Android 11 (Upgradeable to Android 13)
OS Size n/a 29.3 GB
UI Skin Realme UI 6.0 HyperOS 1.0

Battery

Volume 6000 mAh 4500 mAh
Max Charging Power 80 W 67 W
Battery Type Silicon Carbon (Si/C) Li-Po
Removable No No
Wireless Charging No No
Reverse Charging Yes No
Fast Charging Yes (76% in 30 min) Yes (78% in 30 min)
Full Charge Time 1:00 h 0:48 h
Battery Life Test
Battery Life
Realme P3 Ultra 5G
n/a
Xiaomi 12X
22:44
Web Browsingn/a09:35 h
Video Playbackn/a14:39 h
Gamesn/a05:35 h
Standby Moden/a101 h

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8700x5800 pixels
Zoom Digital Digital
Flash LED Dual LED
Stabilization Optical Optical
8K Recording No Up to 24FPS
4K Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 240 fps (720p) 960 fps (720p)
Wide-angle lens 112 ° 123 °
Lenses count Standard: 50 MP
Ultra-wide: 8 MP		 Standard: 50 MP
Ultra-wide: 13 MP
Macro: 5 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP50 MP
Aperturef/1.8f/1.9
Focal length24 mm26 mm
SensorSony IMX896Sony IMX766
Sensor size1/1.561/1.56
Pixel size1 μm1 μm
AutofocusPhase autofocusPhase autofocus (Dual Pixel)
StabilizationOpticalOptical
Ultra-wide lens
Matrix8 MP13 MP
Aperturef/2.2f/2.4
Focal length16 mm12 mm
SensorOmnivision OV08D10OmniVision OV13B10
Sensor size1/4.01/3.06
Pixel size1.12 μm1.12 μm
StabilizationDigitalDigital

Front camera

Matrix 16 MP 32 MP
Photo resolution 4920x3264 pixels 6528x4896 pixels
Aperture f/2.4 f/2.4
Focal length 23 mm 26 mm
Sensor Sony IMX480 OmniVision OV32B40
Sensor size 1/3.09 1/3
Pixel size 1 μm 0.7 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 60 fps 1080p (Full HD) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version 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 MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5.4 5.1
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort No n/a
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS		 - GPS
- GLONASS
- Beidou
- Galileo
- NAVIC
NFC* Varies by region Varies by region
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *Non/a
Hybrid SlotNoNo
2G BandsGSM (850/900/1800/1900)GSM 850 900 1800 1900 MHz
3G BandsWCDMA (850/900/1700/1900/2100)WCDMA B1/2/4/5/6/8/19
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B26/B28/B38/B40/B41/B66)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B26/B28/B32/B66)
5G SupportYesYes

Sound

Speakers Stereo Stereo
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Realme P3 Ultra 5G
n/a
Xiaomi 12X
90.1 dB

Other

Class Mid-range Flagship
Announced March, 2025 yr December, 2021 yr
Release Date March, 2025 yr December, 2021 yr
Launch Price ($) 315 650
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 80 W Yes 67 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Realme P3 Ultra 5G the clear winner in this comparison.

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