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

Xiaomi 12S Ultra vs Realme 15 Pro 5G

74 out 100
Xiaomi 12S Ultra
VS
73 out 100
Realme 15 Pro 5G
Xiaomi 12S Ultra
Realme 15 Pro 5G

Compared 2 smartphones : Xiaomi 12S Ultra Manufactured in July, 2022, with display 6.73 with chipsetQualcomm Snapdragon 8 Plus Gen 1, vs Realme 15 Pro 5G, Manufactured in July, 2025 with chipsetQualcomm Snapdragon 7 Gen 4. 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 12S Ultra
  • Higher pixel density: 521ppi
  • Supports Dolby Atmos
  • Infrared port
Reasons to choose Realme 15 Pro 5G
  • Larger display: 6.8in
  • Higher refresh rate: 144Hz
  • Lighter design: 187g vs 225g
  • Higher battery capacity: 7000mAh vs 4860mAh
  • Newer Bluetooth version: 5.4 vs 5.2

Versions

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

Review

Key Specs Xiaomi 12S Ultra and Realme 15 Pro 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 12S Ultra
vs
Realme 15 Pro 5G

Display

Display quality comparison
Type AMOLED OLED
Size 6.73 in 6.8 in
Resolution 1440x3200 pixels 1280x2800 pixels
Aspect ratio 20:9 19.5:9
Pixel density 521 ppi 453 ppi
Refresh rate 120 Hz 144 Hz
Adaptive refresh rate Yes (60-120 Hz) Yes
Max brightness 1000 nits 1800 nits
HDR support Yes HDR10+ Yes, HDR10+
Touch Sampling Rate 240 Hz 240 Hz
Screen-to-body ratio 89.4 % 91.9 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi 12S Ultra
1064 nits
Realme 15 Pro 5G
n/a
sRGB gamut99.7 %n/a
PWM (Flicker)186 Hzn/a
Response time2 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Xiaomi 12S Ultra]

Design & Build

Design and ergonomics comparison
Height 163.17 mm (6.42 in) 162.26 mm (6.39 in)
Width 74.92 mm (2.95 in) 76.15 mm (3 in)
Thickness 9.06 mm (0.36 in) 7.69 mm (0.3 in)
Weight 225 g (7.94 oz) 187 g (6.6 oz)
Water resistance IP68 IP68
Cooling system Vapor chamber n/a
Frame Metal Plastic
Colors - Black
- Green		 - Silver
- Green
- Purple
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Xiaomi 12S Ultra
89.4 %
Realme 15 Pro 5G
91.9 %

Performance

Testing Xiaomi 12S Ultra and Realme 15 Pro 5G In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Plus Gen 1 Qualcomm Snapdragon 7 Gen 4
Max Frequency 3190 MHz 2800 MHz
CPU Cores 8 (1 + 3 + 4) 8 (1 + 4 + 3)
Architecture - 4/2 (Cortex-A510)
- 3/2.75 (Cortex-A710)
- 1/3.2 (Cortex-X2)		 - 3/1.84 (Kryo Silver (Cortex-520))
- 4/2.4 (Kryo Gold (Cortex-720))
- 1/2.8 (Kryo Prime (Cortex-720))
Process TSMC TSMC
Transistor Size 4 nm 4 nm
Neural Processor Hexagon Yes
Graphics Adreno 730 Adreno 722
GPU Cores 1024 512
GPU Frequency 900 MHz 1150 MHz
FLOPS 1843.2 GFLOPS 1177.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 12S Ultra
1458
Realme 15 Pro 5G
1204
Geekbench 6 (Multi-Core)
Xiaomi 12S Ultra
3970
Realme 15 Pro 5G
3592
Geekbench 6 (Single-Core)14581204
Geekbench 6 (Multi-Core)39703592
Geekbench Compute (GPU)n/a6607
Sources: Geekbench v6 [Xiaomi 12S Ultra], [Realme 15 Pro 5G]
AnTuTu 10
AnTuTu 10
Xiaomi 12S Ultra
1234229
Realme 15 Pro 5G
1086379
CPU331276312446
GPU485862325541
Memory182917218506
UX234174229886
NanoReview Score12342291086379
3DMark Wild Life
3DMark Wild Life
Xiaomi 12S Ultra
9860
Realme 15 Pro 5G
n/a
Max Surface Temp.49.2 °Cn/a
Stability70 %n/a
Graphics Test59 fpsn/a
Graphics Score9860n/a
Sources: 3DMark [Xiaomi 12S Ultra]
PCMark 3.0
PCMark 3.0
Xiaomi 12S Ultra
13365
Realme 15 Pro 5G
n/a
Writing score15792n/a
Web score11773n/a
Video editing7444n/a
Data manipulation9984n/a
NanoReview Score13365n/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- 256 GB
- 512 GB		128 GB
Storage TypeUFS 3.1UFS 3.1
Memory CardNoNo

Software

OS Android 12 Android 15
OS Size 32 GB n/a
UI Skin MIUI 13 Realme UI 6.0

Battery

Volume 4860 mAh 7000 mAh
Max Charging Power 67 W 80 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging Yes (50 W) No
Reverse Charging Yes (Wireless) No
Fast Charging Yes (73% in 30 min) Yes
Full Charge Time 0:50 h n/a
Battery Life Test
Battery Life
Xiaomi 12S Ultra
21:00
Realme 15 Pro 5G
n/a
Web Browsing08:46 hn/a
Video Playback13:01 hn/a
Games05:25 hn/a
Standby Mode96 hn/a

Main camera

Matrix 50 MP 50 MP
Photo resolution n/a 8192x6144 pixels
Zoom Optical, 5x 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 60 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 3840 fps (720p) 240 fps (720p)
Wide-angle lens 128 ° 115 °
Lenses count Standard: 50 MP
Telephoto: 48 MP
Ultra-wide: 48 MP
Depth: 0.3 MP		 Standard: 50 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP50 MP
Aperturef/1.9f/1.8
Focal length23 mm24 mm
SensorSony IMX989Sony IMX896
Sensor size1/11/2
Pixel size1.6 μmn/a
AutofocusLaser autofocusPhase autofocus
StabilizationOpticalOptical
Telephoto
Matrix48 MPn/a
Aperturef/4.1n/a
Focal length120 mmn/a
SensorSony IMX586n/a
Sensor size1/2.0n/a
Pixel size0.8 μmn/a
StabilizationOpticaln/a
Ultra-wide lens
Matrix48 MP50 MP
Aperturef/2.2f/2.0
Focal length13 mmn/a
SensorSony IMX586OmniVision OV50D
Sensor size1/2.01/2
Pixel size0.8 μm0.61 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi 12S Ultra
137
Realme 15 Pro 5G
n/a
Video quality
Xiaomi 12S Ultra
129
Realme 15 Pro 5G
n/a
Overall camera score
Xiaomi 12S Ultra
136
Realme 15 Pro 5G
n/a
Bokeh65n/a
Preview63n/a
Zoom136n/a
Sources: DxOMark [Xiaomi 12S Ultra]

Front camera

Matrix 32 MP 50 MP
Photo resolution 6528x4896 pixels 8192x6144 pixels
Aperture f/2.5 f/2.4
Focal length 26 mm n/a
Sensor Omnivision OV32C OmniVision OV50D
Sensor size 1/3.2 1/2.88
Pixel size 0.7 μm n/a
Autofocus No n/a
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 2160p (4K) at 60 fps
TOF 3D sensor No No
Selfie camera DxOMark results
Photo quality
Xiaomi 12S Ultra
103
Realme 15 Pro 5G
n/a
Video quality
Xiaomi 12S Ultra
132
Realme 15 Pro 5G
n/a

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
- QZSS
- NAVIC		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Yes Yes
Infrared Port Yes No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G Bandsn/aGSM 850/900/1800MHz
3G Bandsn/aWCDMA 1/5/8
LTE Bands*n/aLTE (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
Speaker Test
Max Volume
Xiaomi 12S Ultra
83.2 dB
Realme 15 Pro 5G
n/a

Other

Class Flagship Mid-range
Announced July, 2022 yr July, 2025 yr
Release Date July, 2022 yr July, 2025 yr
Launch Price ($) 890 n/a
MSRP ($) n/a 335
Sensors - Proximity Sensor
- 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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