Xiaomi 12S Ultra vs Xiaomi Poco X8 Pro

Compared 2 smartphones : Xiaomi 12S Ultra Manufactured in July, 2022, with display 6.73 with chipsetQualcomm Snapdragon 8 Plus Gen 1, vs Xiaomi Poco X8 Pro, Manufactured in March, 2026with chipsetMediaTek Dimensity 8500 Ultra. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Xiaomi 12S Ultra
  • Larger display: 6.73in
  • Higher pixel density: 521ppi
Reasons to choose Xiaomi Poco X8 Pro
  • Lighter design: 201.5g vs 225g
  • Higher battery capacity: 6500mAh vs 4860mAh
  • Newer Bluetooth version: 6.0 vs 5.2

Versions

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

Review

Key Specs Xiaomi 12S Ultra and Xiaomi Poco X8 Pro
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 6.59 in
Resolution 1440x3200 pixels 1268x2756 pixels
Aspect ratio 20:9 19.5:9
Pixel density 521 ppi 460 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (60-120 Hz) Yes (30-120 Hz)
Max brightness 1000 nits 2000 nits
HDR support Yes HDR10+ Yes, Dolby Vision
Touch Sampling Rate 240 Hz 480 Hz
Screen-to-body ratio 89.4 % 90 %
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
Xiaomi Poco X8 Pro
n/a
sRGB gamut99.7 %n/a
PWM (Flicker)186 Hzn/a
Response time2 msn/a
Contrast∞ Infiniten/a

Design & Build

Design and ergonomics comparison
Height 163.17 mm (6.42 in) 157.53 mm (6.2 in)
Width 74.92 mm (2.95 in) 75.19 mm (2.96 in)
Thickness 9.06 mm (0.36 in) 8.38 mm (0.33 in)
Weight 225 g (7.94 oz) 201.5 g (7.11 oz)
Water resistance IP68 IP68
Cooling system Vapor chamber Vapor chamber
Frame Metal Metal
Colors - Black
- Green
- White
- Black
- Green
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Xiaomi 12S Ultra
89.4 %
Xiaomi Poco X8 Pro
90 %

Performance

Testing Xiaomi 12S Ultra and Xiaomi Poco X8 Pro In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Plus Gen 1 MediaTek Dimensity 8500 Ultra
Max Frequency 3190 MHz 3400 MHz
CPU Cores 8 (1 + 3 + 4) 8 (1 + 3 + 4)
Architecture - 4/2 (Cortex-A510)
- 3/2.75 (Cortex-A710)
- 1/3.2 (Cortex-X2)
- 4/2.2 (Cortex-A725)
- 3/3.2 (Cortex-A725)
- 1/3.4 (Cortex-A725)
Process TSMC TSMC
Transistor Size 4 nm 4 nm
Neural Processor Hexagon MediaTek NPU 880
Graphics Adreno 730 Mali-G720 MP8
GPU Cores 1024 1024
GPU Frequency 900 MHz 1300 MHz
FLOPS 1843.2 GFLOPS 2662.4 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 12S Ultra
1458
Xiaomi Poco X8 Pro
1751
Geekbench 6 (Multi-Core)
Xiaomi 12S Ultra
3970
Xiaomi Poco X8 Pro
6824
Geekbench 6 (Single-Core)14581751
Geekbench 6 (Multi-Core)39706824
Geekbench Compute (GPU)n/a14716
AnTuTu 10
AnTuTu 10
Xiaomi 12S Ultra
1234229
Xiaomi Poco X8 Pro
2082689
CPU331276590034
GPU485862664221
Memory182917362146
UX234174466288
NanoReview Score12342292082689
3DMark Wild Life
3DMark Wild Life
Xiaomi 12S Ultra
9860
Xiaomi Poco X8 Pro
n/a
Max Surface Temp.49.2 °Cn/a
Stability70 %n/a
Graphics Test59 fpsn/a
Graphics Score9860n/a
PCMark 3.0
PCMark 3.0
Xiaomi 12S Ultra
13365
Xiaomi Poco X8 Pro
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 LPDDR5X
Memory Frequency 3200 MHz n/a
Channels 4 4
Storage
Storage Capacity- 256 GB
- 512 GB
256 GB
Storage TypeUFS 3.1UFS 4.1
Memory CardNoNo

Software

OS Android 12 Android 16
OS Size 32 GB n/a
UI Skin MIUI 13 HyperOS 3.0

Battery

Volume 4860 mAh 6500 mAh
Max Charging Power 67 W 100 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging Yes (50 W) No
Reverse Charging Yes (Wireless) Yes
Fast Charging Yes (73% in 30 min) Yes (68% in 30 min)
Full Charge Time 0:50 h 0:48 h
Battery Life Test
Battery Life
Xiaomi 12S Ultra
21:00
Xiaomi Poco X8 Pro
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) 960 fps (1080p)
Wide-angle lens 128 ° n/a
Lenses count Standard: 50 MP
Telephoto: 48 MP
Ultra-wide: 48 MP
Depth: 0.3 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/1.5
Focal length23 mm26 mm
SensorSony IMX989Sony IMX882
Sensor size1/11/1.95 (0.51)
Pixel size1.6 μm0.8 μm
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 MP8 MP
Aperturef/2.2f/2.2
Focal length13 mm15 mm
SensorSony IMX586SmartSens SC821CS
Sensor size1/2.01/4.0 (0.25)
Pixel size0.8 μm1.12 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi 12S Ultra
137
Xiaomi Poco X8 Pro
n/a
Video quality
Xiaomi 12S Ultra
129
Xiaomi Poco X8 Pro
n/a
Overall camera score
Xiaomi 12S Ultra
136
Xiaomi Poco X8 Pro
n/a
Bokeh65n/a
Preview63n/a
Zoom136n/a

Front camera

Matrix 32 MP 20 MP
Photo resolution 6528x4896 pixels 5184x3888 pixels
Aperture f/2.5 f/2.2
Focal length 26 mm 25 mm
Sensor Omnivision OV32C OmniVision OV20B
Sensor size 1/3.2 1/4.0 (0.25)
Pixel size 0.7 μm 0.7 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 1080p (Full HD) at 60 fps
TOF 3D sensor No No
Selfie camera DxOMark results
Photo quality
Xiaomi 12S Ultra
103
Xiaomi Poco X8 Pro
n/a
Video quality
Xiaomi 12S Ultra
132
Xiaomi Poco X8 Pro
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 6.0
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
- NAVIC
NFC* Yes Varies by region
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G Bandsn/aGSM 2/3/5/8
3G Bandsn/aWCDMA 1/2/4/5/6/8/19
LTE Bands*n/aLTE (B1/B2/B3/B4/B5/B7/B8/B18/B19/B20/B26/B28/B38/B40/B41/B42/B66/B71/B484)
LTE category20n/a
5G SupportYesYes

Sound

Speakers Stereo n/a
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Xiaomi 12S Ultra
83.2 dB
Xiaomi Poco X8 Pro
n/a

Other

Class Flagship Mid-range
Announced July, 2022 yr March, 2026 yr
Release Date July, 2022 yr March, 2026 yr
Launch Price ($) 890 n/a
MSRP ($) n/a 329
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, 100 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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