Home Phone comparison Xiaomi 12 and Realme 15 5G - Which is better?

Xiaomi 12 vs Realme 15 5G

65 out 100
Xiaomi 12
VS
70 out 100
Realme 15 5G
Xiaomi 12
Realme 15 5G

Compared 2 smartphones : Xiaomi 12 Manufactured in December, 2021, with display 6.28 with chipsetQualcomm Snapdragon 8 Gen 1, vs Realme 15 5G, Manufactured in July, 2025 with chipsetMediaTek Dimensity 7300 Plus. 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
  • Lighter design: 180g vs 187g
  • Supports Dolby Atmos
Reasons to choose Realme 15 5G
  • Larger display: 6.8in
  • Higher pixel density: 453ppi
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 7000mAh vs 4500mAh
  • Newer Bluetooth version: 5.4 vs 5.2

Versions

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

Review

Key Specs Xiaomi 12 and Realme 15 5G
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.
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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
Realme 15 5G

Display

Display quality comparison
Type AMOLED OLED
Size 6.28 in 6.8 in
Resolution 1080x2400 pixels 1280x2800 pixels
Aspect ratio 20:9 19.5:9
Pixel density 419 ppi 453 ppi
Refresh rate 120 Hz 144 Hz
Adaptive refresh rate Yes (60-120 Hz) Yes
Max brightness 500 nits 1800 nits
HDR support Yes HDR10+ Yes, HDR10+
Touch Sampling Rate 480 Hz 240 Hz
Screen-to-body ratio 89.3 % 91.9 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi 12
887 nits
Realme 15 5G
n/a

Design & Build

Design and ergonomics comparison
Height 152.7 mm (6.01 in) 162.27 mm (6.39 in)
Width 69.9 mm (2.75 in) 76.16 mm (3 in)
Thickness 8.16 mm (0.32 in) 7.66 mm (0.3 in)
Weight 180 g (6.35 oz) 187 g (6.6 oz)
Water resistance No IP68
Back panel Glass n/a
Frame Metal Plastic
Colors - Black
- Blue
- Pink		 - Silver
- Green
- Purple
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Xiaomi 12
89.3 %
Realme 15 5G
91.9 %

Performance

Testing Xiaomi 12 and Realme 15 5G In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Gen 1 MediaTek Dimensity 7300 Plus
Max Frequency 3000 MHz 2600 MHz
CPU Cores 8 (1 + 3 + 4) 8 (4 + 4)
Architecture - 4/1.8 (Cortex-A510)
- 3/2.5 (Cortex-A710)
- 1/3 (Cortex-X2)		 - 4/2 (Cortex-A55)
- 4/2.5 (Cortex-A78)
Process Samsung TSMC
Transistor Size 4 nm 4 nm
Neural Processor Hexagon MediaTek APU 655
Graphics Adreno 730 Mali-G615 MP2
GPU Cores 1024 256
GPU Frequency 818 MHz 1047 MHz
FLOPS 1675.3 GFLOPS 536.1 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 12
1702
Realme 15 5G
1014
Geekbench 6 (Multi-Core)
Xiaomi 12
3977
Realme 15 5G
2916
Geekbench 6 (Single-Core)17021014
Geekbench 6 (Multi-Core)39772916
Geekbench Compute (GPU)n/a2497
Sources: Geekbench v6 [Xiaomi 12], [Realme 15 5G]
AnTuTu 10
AnTuTu 10
Xiaomi 12
1187033
Realme 15 5G
728221
CPU308025212437
GPU439066149032
Memory237645185085
UX212297181667
NanoReview Score1187033728221
3DMark Wild Life
3DMark Wild Life
Xiaomi 12
8751
Realme 15 5G
n/a
Stability60 %n/a
Graphics Test52 fpsn/a
Graphics Score8751n/a
Sources: 3DMark [Xiaomi 12]
PCMark 3.0
PCMark 3.0
Xiaomi 12
12987
Realme 15 5G
n/a
Writing score14840n/a
Web score11534n/a
Video editing7452n/a
Data manipulation9643n/a
NanoReview Score12987n/a

Memory

RAM
RAM Size - 8 GB
- 12 GB		 8 GB
Memory Type LPDDR5 LPDDR4X
Memory Frequency 3200 MHz 2133 MHz
Channels 4 2
Storage
Storage Capacity- 128 GB
- 256 GB		128 GB
Storage TypeUFS 3.1UFS 3.1
Memory CardNoNo

Software

OS Android 12 (Upgradeable to Android 14) Android 15
UI Skin HyperOS 1.0 Realme UI 6.0

Battery

Volume 4500 mAh 7000 mAh
Max Charging Power 67 W 80 W
Battery Type Li-Po Li-ion
Removable No No
Wireless Charging Yes (50 W) No
Reverse Charging Yes (Wireless) No
Fast Charging Yes (87% in 30 min) Yes
Full Charge Time 0:46 h n/a
Battery Life Test
Battery Life
Xiaomi 12
15:58
Realme 15 5G
n/a
Web Browsing06:17 hn/a
Video Playback10:46 hn/a
Games04:42 hn/a
Standby Mode71 hn/a

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8192x6144 pixels
Zoom Digital Digital
Flash Dual LED Dual LED
Stabilization Optical Optical
8K Recording Up to 24FPS No
4K Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 1920 fps (720p) n/a
Wide-angle lens 123 ° 112 °
Lenses count Standard: 50 MP
Ultra-wide: 13 MP
Macro: 5 MP		 Standard: 50 MP
Ultra-wide: 8 MP
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP50 MP
Aperturef/1.9f/1.8
Focal length26 mm24 mm
SensorSony IMX766Sony IMX896
Sensor size1/1.561/2
Pixel size1 μmn/a
AutofocusPhase autofocus (Dual Pixel)Phase autofocus
StabilizationOpticalOptical
Ultra-wide lens
Matrix13 MP8 MP
Aperturef/2.4f/2.2
Focal length12 mm16 mm
SensorOmniVision OV13B10n/a
Sensor size1/3.06n/a
Pixel size1.12 μmn/a
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi 12
118
Realme 15 5G
n/a
Video quality
Xiaomi 12
121
Realme 15 5G
n/a
Overall camera score
Xiaomi 12
113
Realme 15 5G
n/a
Bokeh55n/a
Preview69n/a
Zoom72n/a
Sources: DxOMark [Xiaomi 12]

Front camera

Matrix 32 MP 50 MP
Photo resolution 6528x4896 pixels 8192x6144 pixels
Aperture f/2.4 n/a
Focal length 26 mm n/a
Sensor OmniVision OV32B40 CMOS
Pixel size 0.7 μm n/a
Autofocus No n/a
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 60 fps 2160p (4K) 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 MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5.2 5.4
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 n/a No
GPS - GPS
- GLONASS
- Beidou
- Galileo
- NAVIC		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Yes No
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850 900 1800 1900 MHzGSM 850/900/1800MHz
3G BandsWCDMA B1/2/4/5/6/8/19WCDMA 1/5/8
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B32/B66)LTE (B1/B3/B5/B8/B40/B41)
LTE category20n/a
5G SupportYesYes

Sound

Speakers Stereo n/a
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes n/a

Other

Class Flagship Mid-range
Announced December, 2021 yr July, 2025 yr
Release Date December, 2021 yr July, 2025 yr
Launch Price ($) 580 n/a
MSRP ($) n/a 280
Sensors - Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 67 W Yes, 80 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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