Xiaomi 15 Ultra vs Realme 12 Pro Plus 5G

Compared 2 smartphones : Xiaomi 15 Ultra Manufactured in February, 2025, with display 6.73 with chipsetQualcomm Snapdragon 8 Elite, vs Realme 12 Pro Plus 5G, Manufactured in January, 2024with chipsetQualcomm Snapdragon 7s Gen 2. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Xiaomi 15 Ultra
  • Larger display: 6.73in
  • Higher pixel density: 522ppi
  • Higher battery capacity: 5410mAh vs 5000mAh
  • Newer Bluetooth version: 6.0 vs 5.2
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Infrared port
  • Built-in eSIM
Reasons to choose Realme 12 Pro Plus 5G
  • Lighter design: 196g vs 226g

Versions

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

Review

Key Specs Xiaomi 15 Ultra and Realme 12 Pro Plus 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.
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

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.73 in 6.7 in
Resolution 1440x3200 pixels 1080x2412 pixels
Aspect ratio 20:9 20:9
Pixel density 522 ppi 394 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (1-120 Hz) No
Max brightness n/a 950 nits
HDR support Yes Dolby Vision n/a
Touch Sampling Rate 300 Hz 240 Hz
Screen-to-body ratio 90 % 90.6 %
Features - DCI-P3
- Always-On Display
- DC dimming
- DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi 15 Ultra
1599 nits
Realme 12 Pro Plus 5G
796 nits
sRGB gamut99.7 %n/a
PWM (Flicker)120 Hzn/a
Response time1 msn/a
Contrast∞ Infiniten/a

Design & Build

Design and ergonomics comparison
Height 161.3 mm (6.35 in) 161.47 mm (6.36 in)
Width 75.3 mm (2.96 in) 74.02 mm (2.91 in)
Thickness 9.35 mm (0.37 in) 8.75 mm (0.34 in)
Weight 226 g (7.97 oz) 196 g (6.91 oz)
Water resistance IP68 IP65
Cooling system Vapor chamber Vapor chamber
Back panel Glass n/a
Frame Metal n/a
Colors - White
- Black
- Silver
- Green
- Blue
- Red
- Yellow
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Xiaomi 15 Ultra
90 %
Realme 12 Pro Plus 5G
90.6 %

Performance

Testing Xiaomi 15 Ultra and Realme 12 Pro Plus 5G In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite Qualcomm Snapdragon 7s Gen 2
Max Frequency 4320 MHz 2400 MHz
CPU Cores 8 (2 + 6) 8 (4 + 4)
Architecture - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))
- 4/1.95 (Cortex-A55)
- 4/2.4 (Cortex-A78)
Process TSMC Samsung
Transistor Size 3 nm 4 nm
Neural Processor Hexagon Yes
Graphics Adreno 830 Adreno 710
GPU Cores 1536 256
GPU Frequency 1100 MHz 940 MHz
FLOPS 3379.2 GFLOPS 481.3 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 15 Ultra
3008
Realme 12 Pro Plus 5G
1017
Geekbench 6 (Multi-Core)
Xiaomi 15 Ultra
9065
Realme 12 Pro Plus 5G
2893
Geekbench 6 (Single-Core)30081017
Geekbench 6 (Multi-Core)90652893
AnTuTu 10
AnTuTu 10
Xiaomi 15 Ultra
2544373
Realme 12 Pro Plus 5G
657798
CPU558586214998
GPU1040161120430
Memory520300165223
UX425326157147
NanoReview Score2544373657798

Memory

RAM
RAM Size 12 GB - 8 GB
- 12 GB
Memory Type LPDDR5X LPDDR4X
Memory Frequency 5333 MHz 2133 MHz
Channels 2 2
Storage
Storage Capacity256 GB- 128 GB
- 256 GB
- 512 GB
Storage TypeUFS 4.1UFS 3.1
Memory CardNoNo

Software

OS Android 15 Android 14
OS Size 23.9 GB n/a
UI Skin HyperOS 2.0 Realme UI 5.0

Battery

Volume 5410 mAh 5000 mAh
Max Charging Power 90 W 67 W
Battery Type Silicon Carbon (Si/C) Li-Po
Removable No No
Wireless Charging Yes (80 W) No
Reverse Charging Yes (Wireless) No
Fast Charging Yes (72% in 30 min) Yes (81% in 30 min)
Full Charge Time 0:51 h 0:43 h
Battery Life Test
Battery Life
Xiaomi 15 Ultra
30:03
Realme 12 Pro Plus 5G
25:33
Web Browsing12:19 h10:56 h
Video Playback18:43 h15:00 h
Games06:45 h05:28 h
Standby Mode141 h121 h

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8192x6144 pixels
Zoom Optical, 4.3x Optical, 3x
Flash Dual LED LED
Stabilization Optical Optical
8K Recording Yes (Up to 30 fps) No
4K Recording Yes (Up to 120 fps) Yes (Up to 30 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 1920 fps (1080p) 240 fps (720p)
Wide-angle lens 115 ° 112 °
Lenses count Standard: 50 MP
Telephoto: 200 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Depth
Standard: 50 MP
Telephoto: 64 MP
Ultra-wide: 8 MP
Features - Bokeh effect
- Pro mode
- RAW support
- Bokeh effect
- Pro mode
Main lens
Matrix50 MP50 MP
Aperturef/1.63f/1.8
Focal length23 mm24 mm
SensorSony LYT-900Sony IMX890
Sensor size1/1.01/1.56
Pixel size1.6 μm1 μm
AutofocusLaser autofocusPhase autofocus
StabilizationOpticalOptical
Telephoto
Matrix200 MP64 MP
Aperturef/2.6f/2.8
Focal length100 mm71 mm
SensorSamsung ISOCELL S5KHP9Omnivision OV64B
Sensor size1/1.41/2
Pixel size0.56 μm0.7 μm
StabilizationOpticalOptical
Ultra-wide lens
Matrix50 MP8 MP
Aperturef/2.2f/2.2
Focal length14 mm16 mm
SensorSamsung S5KJN5Hynix HI-846
Sensor size1/2.761/4.0
Pixel size0.64 μm1.12 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi 15 Ultra
158
Realme 12 Pro Plus 5G
n/a
Video quality
Xiaomi 15 Ultra
134
Realme 12 Pro Plus 5G
n/a
Overall camera score
Xiaomi 15 Ultra
153
Realme 12 Pro Plus 5G
n/a
Bokeh80n/a
Preview89n/a

Front camera

Matrix 32 MP 32 MP
Photo resolution 6528x4896 pixels 6560x4928 pixels
Aperture f/2.0 f/2.4
Focal length 22 mm 22 mm
Sensor Omnivision OV32B n/a
Sensor size 1/3.14 n/a
Pixel size 0.7 μm 0.8 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps 1080p (Full HD) at 30 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 Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 6.0 5.2
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
- Galileo
- QZSS
NFC* Yes Yes
Infrared Port Yes No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *YesNo
Hybrid SlotNoNo
2G BandsGSM 2/3/5/8GSM 850/900/1800
3G BandsWCDMA 1/2/4/5/6/8/19WCDMA 1/5/8
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/B3/B5/B8/B28B/B40/B41)
LTE categoryn/a18
5G SupportYesYes

Sound

Speakers n/a Stereo
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Xiaomi 15 Ultra
92.1 dB
Realme 12 Pro Plus 5G
n/a

Other

Class Flagship Mid-range
Announced February, 2025 yr January, 2024 yr
Release Date February, 2025 yr January, 2024 yr
Launch Price ($) n/a 360
MSRP ($) 1099 n/a
Sensors - Barometer
- 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

Note

Xiaomi 15 Ultra:

The Chinese version of the Xiaomi 15 Ultra has a 6000 mAh battery, while the international model comes with 5410 mAh, leading to a noticeable difference in battery life.

* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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

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