Home Phone comparison Xiaomi 15 and Xiaomi 12X - Which is better?

Xiaomi 15 vs Xiaomi 12X

93 out 100
Xiaomi 15
VS
63 out 100
Xiaomi 12X
Xiaomi 15
Xiaomi 12X

Compared 2 smartphones : Xiaomi 15 Manufactured in October, 2024, with display 6.36 with chipsetQualcomm Snapdragon 8 Elite, vs Xiaomi 12X, Manufactured in December, 2021with 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 Xiaomi 15
  • Larger display: 6.36in
  • Higher pixel density: 460ppi
  • Higher battery capacity: 5400mAh vs 4500mAh
  • Newer Bluetooth version: 5.4 vs 5.1
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Built-in eSIM
Reasons to choose Xiaomi 12X
  • Lighter design: 176g vs 191g

Versions

Available versions and configurations
Memory Options - 12/256 GB
- 12/512 GB
- 16/256 GB
- 16/512 GB
- 16/1024 GB		 - 8/128 GB
- 8/256 GB
- 12/256 GB

Review

Key Specs Xiaomi 15 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:
Xiaomi 15
vs
Xiaomi 12X

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.36 in 6.28 in
Resolution 1200x2670 pixels 1080x2400 pixels
Aspect ratio 20:9 20:9
Pixel density 460 ppi 419 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes
Max brightness 1500 nits 500 nits
HDR support Yes Dolby Vision Yes HDR10+
Touch Sampling Rate 300 Hz 480 Hz
Screen-to-body ratio 90.1 % 89.3 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi 15
1508 nits
Xiaomi 12X
924 nits
sRGB gamut99.5 %98.6 %
PWM (Flicker)120 Hz523 Hz
Response time1 ms1 ms
Contrast∞ Infinite∞ Infinite
Sources: NotebookCheck [Xiaomi 15], [Xiaomi 12X]

Design & Build

Design and ergonomics comparison
Height 152.3 mm (6 in) 152.7 mm (6.01 in)
Width 71.2 mm (2.8 in) 69.9 mm (2.75 in)
Thickness 8.08 mm (0.32 in) 8.16 mm (0.32 in)
Weight 191 g (6.74 oz) 176 g (6.21 oz)
Water resistance IP68 No
Cooling system Vapor chamber n/a
Back panel Glass Glass
Frame Metal Metal
Colors - White
- Black
- Silver
- Green
- Purple		 - Black
- Blue
- Pink
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Xiaomi 15
90.1 %
Xiaomi 12X
89.3 %

Performance

Testing Xiaomi 15 and Xiaomi 12X In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite Qualcomm Snapdragon 870
Max Frequency 4320 MHz 3200 MHz
CPU Cores 8 (2 + 6) 8 (1 + 3 + 4)
Architecture - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))		 - 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 3 nm 7 nm
Neural Processor Hexagon Hexagon 698
Graphics Adreno 830 Adreno 650
GPU Cores 1536 768
GPU Frequency 1100 MHz 670 MHz
FLOPS 3379.2 GFLOPS 1029.1 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 15
2934
Xiaomi 12X
1297
Geekbench 6 (Multi-Core)
Xiaomi 15
8762
Xiaomi 12X
3428
Geekbench 6 (Single-Core)29341297
Geekbench 6 (Multi-Core)87623428
Geekbench Compute (GPU)24507n/a
Sources: Geekbench v6 [Xiaomi 15], [Xiaomi 12X]
AnTuTu 10
AnTuTu 10
Xiaomi 15
2620144
Xiaomi 12X
806389
CPU584725237508
GPU1142381235693
Memory519406153330
UX373632179858
NanoReview Score2620144806389
3DMark Wild Life
3DMark Wild Life
Xiaomi 15
20823
Xiaomi 12X
4251
Max Surface Temp.n/a37.6 °C
Stabilityn/a98 %
Graphics Testn/a25 fps
Graphics Scoren/a4251
Sources: 3DMark [Xiaomi 15], [Xiaomi 12X]
PCMark 3.0
PCMark 3.0
Xiaomi 15
18292
Xiaomi 12X
n/a
Writing score22508n/a
Web score18826n/a
Video editing8060n/a
Data manipulation14605n/a
NanoReview Score18292n/a

Memory

RAM
RAM Size - 12 GB
- 16 GB		 - 8 GB
- 12 GB
Memory Type LPDDR5X LPDDR5
Channels 2 2
Storage
Storage Capacity- 256 GB
- 512 GB
- 1024 GB		- 128 GB
- 256 GB
Storage TypeUFS 4.0UFS 3.1
Memory CardNoNo

Software

OS Android 15 Android 11 (Upgradeable to Android 13)
OS Size 21 GB 29.3 GB
UI Skin HyperOS 2.0 HyperOS 1.0

Battery

Volume 5400 mAh 4500 mAh
Max Charging Power 90 W 67 W
Battery Type Silicon Carbon (Si/C) Li-Po
Removable No No
Wireless Charging Yes (50 W) No
Reverse Charging Yes (Wireless) No
Fast Charging Yes (83% in 30 min) Yes (78% in 30 min)
Full Charge Time 0:45 h 0:48 h
Battery Life Test
Battery Life
Xiaomi 15
31:54
Xiaomi 12X
22:44
Web Browsing13:20 h09:35 h
Video Playback19:22 h14:39 h
Games07:10 h05:35 h
Standby Mode150 h101 h

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8700x5800 pixels
Zoom Optical, 2.6x Digital
Flash Dual LED Dual LED
Stabilization Optical Optical
8K Recording Yes (Up to 30 fps) Up to 24FPS
4K Recording Yes (Up to 120 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 1920 fps (720p) 960 fps (720p)
Wide-angle lens 115 ° 123 °
Lenses count Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 50 MP		 Standard: 50 MP
Ultra-wide: 13 MP
Macro: 5 MP
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP50 MP
Aperturef/1.6f/1.9
Focal length23 mm26 mm
SensorOmniVision OVX9000 Light Fusion 900Sony IMX766
Sensor size1/1.311/1.56
Pixel size1.2 μm1 μm
AutofocusLaser autofocusPhase autofocus (Dual Pixel)
StabilizationOpticalOptical
Telephoto
Matrix50 MPn/a
Aperturef/2.0n/a
Focal length60 mmn/a
SensorSamsung S5KJN5n/a
Sensor size1/2.76n/a
Pixel size0.64 μmn/a
StabilizationOpticaln/a
Ultra-wide lens
Matrix50 MP13 MP
Aperturef/2.2f/2.4
Focal length14 mm12 mm
SensorSamsung S5KJN1OmniVision OV13B10
Sensor size1/2.761/3.06
Pixel size0.64 μm1.12 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi 15
150
Xiaomi 12X
n/a
Video quality
Xiaomi 15
133
Xiaomi 12X
n/a
Overall camera score
Xiaomi 15
147
Xiaomi 12X
n/a
Bokeh75n/a
Preview87n/a
Zoom152n/a
Sources: DxOMark [Xiaomi 15]

Front camera

Matrix 32 MP 32 MP
Photo resolution 6528x4896 pixels 6528x4896 pixels
Aperture f/2.0 f/2.4
Focal length 22 mm 26 mm
Sensor Omnivision OV32B OmniVision OV32B40
Sensor size 1/3.14 1/3
Pixel size 0.7 μm 0.7 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps 1080p (Full HD) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) 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 3.2 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort Yes n/a
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC		 - GPS
- GLONASS
- Beidou
- Galileo
- NAVIC
NFC* Yes Varies by region
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *Yesn/a
Hybrid SlotNoNo
2G BandsGSM B2/B3/B5/B8GSM 850 900 1800 1900 MHz
3G BandsWCDMA B1/B2/B4/B5/B6/B8/B19WCDMA B1/2/4/5/6/8/19
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B17/B18/B19/B20/B26/B28/B34/B38/B39/B40/B41/B42/B48/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
Xiaomi 15
91.3 dB
Xiaomi 12X
90.1 dB

Other

Class Flagship Flagship
Announced October, 2024 yr December, 2021 yr
Release Date October, 2024 yr December, 2021 yr
Launch Price ($) 757 650
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 90 W Yes 67 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi 15 the clear winner in this comparison.

Survey

Which smartphone would you pick?
4 (100%)
0 (0%)
Total Votes: 4

User comments

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