Home Phone comparison Samsung Galaxy S23 Ultra and Xiaomi 12 - Which is better?

Samsung Galaxy S23 Ultra vs Xiaomi 12

81 out 100
Samsung Galaxy S23 Ultra
VS
65 out 100
Xiaomi 12
Samsung Galaxy S23 Ultra
Xiaomi 12

Compared 2 smartphones : Samsung Galaxy S23 Ultra Manufactured in February, 2023, with display 6.8 with chipsetSnapdragon 8 Gen 2 Mobile Platform for Galaxy, vs Xiaomi 12, Manufactured in December, 2021 with chipsetQualcomm Snapdragon 8 Gen 1. 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 Samsung Galaxy S23 Ultra
  • Larger display: 6.8in
  • Higher pixel density: 500ppi
  • Higher battery capacity: 5000mAh vs 4500mAh
  • Newer Bluetooth version: 5.3 vs 5.2
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Built-in eSIM
Reasons to choose Xiaomi 12
  • Lighter design: 180g vs 233g
  • Infrared port
  • Includes charger

Versions

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

Review

Key Specs Samsung Galaxy S23 Ultra and Xiaomi 12
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:
Galaxy S23 Ultra
vs
Xiaomi 12

Display

Display quality comparison
Type Dynamic AMOLED AMOLED
Size 6.8 in 6.28 in
Resolution 1440x3088 pixels 1080x2400 pixels
Aspect ratio 19.3:9 20:9
Pixel density 500 ppi 419 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes (60-120 Hz)
Max brightness 850 nits 500 nits
HDR support Yes HDR10+ Yes HDR10+
Touch Sampling Rate 240 Hz 480 Hz
Screen-to-body ratio 89.5 % 89.3 %
Features - DCI-P3
- Always-On Display		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Samsung Galaxy S23 Ultra
1269 nits
Xiaomi 12
887 nits
sRGB gamut96.9 %n/a
PWM (Flicker)240 Hzn/a
Response time2 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Samsung Galaxy S23 Ultra]

Design & Build

Design and ergonomics comparison
Height 163.4 mm (6.43 in) 152.7 mm (6.01 in)
Width 78.1 mm (3.07 in) 69.9 mm (2.75 in)
Thickness 8.9 mm (0.35 in) 8.16 mm (0.32 in)
Weight 233 g (8.22 oz) 180 g (6.35 oz)
Water resistance IP68 No
Cooling system Vapor chamber n/a
Back panel Glass Glass
Frame Metal Metal
Colors - White
- Black
- Gray
- Blue
- Green
- Red
- Purple		 - Black
- Blue
- Pink
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Samsung Galaxy S23 Ultra
89.5 %
Xiaomi 12
89.3 %

Performance

Testing Samsung Galaxy S23 Ultra and Xiaomi 12 In benchmarks
Processor
Chipset Snapdragon 8 Gen 2 Mobile Platform for Galaxy Qualcomm Snapdragon 8 Gen 1
Max Frequency 3360 MHz 3000 MHz
CPU Cores 8 (1 + 2 + 2 + 3) 8 (1 + 3 + 4)
Architecture - 3/2 (Cortex-A510)
- 2/2.8 (Cortex-A710)
- 2/2.8 (Cortex-A715)
- 1/3.2 (Cortex-X3)		 - 4/1.8 (Cortex-A510)
- 3/2.5 (Cortex-A710)
- 1/3 (Cortex-X2)
Process TSMC Samsung
Transistor Size 4 nm 4 nm
Neural Processor Hexagon Hexagon
Graphics Adreno 740 Adreno 730
GPU Cores 1536 1024
GPU Frequency 719 MHz 818 MHz
FLOPS 2089 GFLOPS 1675.3 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy S23 Ultra
1976
Xiaomi 12
1702
Geekbench 6 (Multi-Core)
Samsung Galaxy S23 Ultra
5221
Xiaomi 12
3977
Geekbench 6 (Single-Core)19761702
Geekbench 6 (Multi-Core)52213977
Sources: Geekbench v6 [Xiaomi 12]
AnTuTu 10
AnTuTu 10
Samsung Galaxy S23 Ultra
1541246
Xiaomi 12
1187033
CPU371084308025
GPU600732439066
Memory299004237645
UX270462212297
NanoReview Score15412461187033
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy S23 Ultra
12160
Xiaomi 12
8751
Max Surface Temp.34.8 °Cn/a
Stability64 %60 %
Graphics Test72 fps52 fps
Graphics Score121608751
Sources: 3DMark [Samsung Galaxy S23 Ultra], [Xiaomi 12]
PCMark 3.0
PCMark 3.0
Samsung Galaxy S23 Ultra
16130
Xiaomi 12
12987
Writing score1979914840
Web score1610111534
Video editing78157452
Data manipulation131429643
NanoReview Score1613012987

Memory

RAM
RAM Size - 8 GB
- 12 GB		 - 8 GB
- 12 GB
Memory Type LPDDR5X LPDDR5
Memory Frequency 4200 MHz 3200 MHz
Channels 4 4
Storage
Storage Capacity- 256 GB
- 512 GB
- 1024 GB		- 128 GB
- 256 GB
Storage TypeUFS 4.0UFS 3.1
Memory CardNoNo

Software

OS Android 13 (Upgradeable to Android 14) Android 12 (Upgradeable to Android 14)
OS Size 39.9 GB n/a
UI Skin One UI 6.1 HyperOS 1.0

Battery

Volume 5000 mAh 4500 mAh
Max Charging Power 45 W 67 W
Battery Type Li-ion Li-Po
Removable No No
Wireless Charging Yes (15 W) Yes (50 W)
Reverse Charging Yes (Wireless) Yes (Wireless)
Fast Charging Yes (68% in 30 min) Yes (87% in 30 min)
Full Charge Time 0:59 h 0:46 h
Battery Life Test
Battery Life
Samsung Galaxy S23 Ultra
26:01
Xiaomi 12
15:58
Web Browsing09:57 h06:17 h
Video Playback15:38 h10:46 h
Games06:22 h04:42 h
Standby Mode130 h71 h

Main camera

Matrix 200 MP 50 MP
Photo resolution 16320x12240 pixels 8192x6144 pixels
Zoom Optical, 10x Digital
Flash LED Dual LED
Stabilization Optical Optical
8K Recording Yes (Up to 30 fps) Up to 24FPS
4K Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 120 fps) Yes (Up to 60 fps)
Slow Motion 960 fps (1080p) 1920 fps (720p)
Wide-angle lens 120 ° 123 °
Lenses count Standard: 200 MP
Telephoto: 10 MP
Telephoto: 10 MP
Ultra-wide: 12 MP		 Standard: 50 MP
Ultra-wide: 13 MP
Macro: 5 MP
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix200 MP50 MP
Aperturef/1.7f/1.9
Focal length23 mm26 mm
SensorSamsung ISOCELL HP2Sony IMX766
Sensor size1/1.31/1.56
Pixel size0.64 μm1 μm
AutofocusLaser autofocusPhase autofocus (Dual Pixel)
StabilizationOpticalOptical
Telephoto
Matrix10 MPn/a
Aperturef/4.9n/a
Focal length230 mmn/a
SensorSony IMX754n/a
Sensor size1/3.52n/a
Pixel size1.12 μmn/a
StabilizationOpticaln/a
Ultra-wide lens
Matrix12 MP13 MP
Aperturef/2.2f/2.4
Focal length13 mm12 mm
SensorSony IMX564OmniVision OV13B10
Sensor size1/2.551/3.06
Pixel size1.4 μm1.12 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Samsung Galaxy S23 Ultra
139
Xiaomi 12
118
Video quality
Samsung Galaxy S23 Ultra
137
Xiaomi 12
121
Overall camera score
Samsung Galaxy S23 Ultra
140
Xiaomi 12
113
Bokeh7055
Preview7369
Zoom14172
Sources: DxOMark [Samsung Galaxy S23 Ultra], [Xiaomi 12]

Front camera

Matrix 12 MP 32 MP
Photo resolution 4000x3000 pixels 6528x4896 pixels
Aperture f/2.2 f/2.4
Focal length 26 mm 26 mm
Sensor Samsung S5K3LU OmniVision OV32B40
Sensor size 1/3.24 n/a
Pixel size 1.12 μm 0.7 μm
Autofocus Phase autofocus No
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps 1080p (Full HD) at 60 fps
TOF 3D sensor No No
Selfie camera DxOMark results
Photo quality
Samsung Galaxy S23 Ultra
139
Xiaomi 12
n/a
Video quality
Samsung Galaxy S23 Ultra
145
Xiaomi 12
n/a

Connectivity

Wi-Fi version Wi-Fi 6E (802.11 a/b/g/n/ac/ax) Wi-Fi 6E (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 5.3 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 DP 1.2 n/a
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS		 - GPS
- GLONASS
- Beidou
- Galileo
- NAVIC
NFC* Yes Yes
Infrared Port No Yes
Connectivity
SIM Count*12
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *YesNo
Hybrid SlotNoNo
2G Bandsn/aGSM 850 900 1800 1900 MHz
3G Bandsn/aWCDMA B1/2/4/5/6/8/19
LTE Bands*n/aLTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B32/B66)
LTE category2020
5G SupportYesYes

Sound

Speakers Stereo Stereo
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Samsung Galaxy S23 Ultra
91.8 dB
Xiaomi 12
n/a

Other

Class Flagship Flagship
Announced February, 2023 yr December, 2021 yr
Release Date February, 2023 yr December, 2021 yr
Launch Price ($) 1199 580
Sensors - Hall Sensor
- Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included No Yes 67 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Samsung Galaxy S23 Ultra the clear winner in this comparison.

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