Samsung Galaxy S23 vs Xiaomi Mi 9

Compared 2 smartphones : Samsung Galaxy S23 Manufactured in February, 2023, with display 6.1 with chipsetSnapdragon 8 Gen 2 Mobile Platform for Galaxy, vs Xiaomi Mi 9, Manufactured in April, 2019with chipsetQualcomm Snapdragon 855. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Samsung Galaxy S23
  • Higher pixel density: 425ppi
  • Higher refresh rate: 120Hz
  • Lighter design: 168g vs 173g
  • Higher battery capacity: 3900mAh vs 3300mAh
  • Newer Bluetooth version: 5.3 vs 5
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Supports Dolby Atmos
  • Built-in eSIM
Reasons to choose Xiaomi Mi 9
  • Larger display: 6.39in
  • Infrared port

Versions

Available versions and configurations
Memory Options - 8/128 GB
- 8/256 GB
- 8/512 GB
- 6/64 GB
- 6/128 GB
- 8/64 GB
- 8/128 GB
- 8/256 GB

Review

Key Specs Samsung Galaxy S23 and Xiaomi Mi 9
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 Dynamic AMOLED AMOLED
Size 6.1 in 6.39 in
Resolution 1080x2340 pixels 1080x2340 pixels
Aspect ratio 19.5:9 19.5:9
Pixel density 425 ppi 403 ppi
Refresh rate 120 Hz 60 Hz
Adaptive refresh rate Yes (24-120 Hz) No
Max brightness 800 nits 600 nits
HDR support Yes HDR10+ Yes HDR10
Screen-to-body ratio 88 % 85.3 %
Features - DCI-P3
- Always-On Display
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Samsung Galaxy S23
1197 nits
Xiaomi Mi 9
619 nits
sRGB gamut98.9 %95.4 %
PWM (Flicker)240 Hz245 Hz
Response time1 ms4.2 ms
Contrast∞ Infinite∞ Infinite

Design & Build

Design and ergonomics comparison
Height 146.3 mm (5.76 in) 157.5 mm (6.2 in)
Width 70.9 mm (2.79 in) 74.6 mm (2.94 in)
Thickness 7.6 mm (0.3 in) 7.6 mm (0.3 in)
Weight 168 g (5.93 oz) 173 g (6.1 oz)
Water resistance IP68 No
Cooling system Vapor chamber n/a
Back panel Glass Glass
Frame Metal Metal
Colors - White
- Black
- Gray
- Green
- Purple
- Yellow
- Black
- Blue
- Purple
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Samsung Galaxy S23
88 %
Xiaomi Mi 9
85.3 %

Performance

Testing Samsung Galaxy S23 and Xiaomi Mi 9 In benchmarks
Processor
Chipset Snapdragon 8 Gen 2 Mobile Platform for Galaxy Qualcomm Snapdragon 855
Max Frequency 3360 MHz 2840 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-A55 (Kryo 485 Silver))
- 3/2.42 (Cortex-A76 (Kryo 485 Gold))
- 1/2.84 (Cortex-A76 (Kryo 485 Gold))
Process TSMC TSMC
Transistor Size 4 nm 7 nm
Neural Processor Hexagon Hexagon 690
Graphics Adreno 740 Adreno 640
GPU Cores 1536 768
GPU Frequency 719 MHz 585 MHz
FLOPS 2089 GFLOPS 898.5 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy S23
1831
Xiaomi Mi 9
898
Geekbench 6 (Multi-Core)
Samsung Galaxy S23
4914
Xiaomi Mi 9
2206
Geekbench 6 (Single-Core)1831898
Geekbench 6 (Multi-Core)49142206
Geekbench Compute (GPU)9422n/a
AnTuTu 10
AnTuTu 10
Samsung Galaxy S23
1522811
Xiaomi Mi 9
651041
CPU380535209300
GPU598896191747
Memory273271113809
UX270109136185
NanoReview Score1522811651041
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy S23
12039
Xiaomi Mi 9
3100
Max Surface Temp.34.3 °C35.6 °C
Stability60 %91 %
Graphics Test72 fps18 fps
Graphics Score120393100
PCMark 3.0
PCMark 3.0
Samsung Galaxy S23
15602
Xiaomi Mi 9
10649
Writing score1933014618
Web score142627084
Video editing78406715
Data manipulation126747931
NanoReview Score1560210649

Memory

RAM
RAM Size 8 GB 6 GB
Memory Type LPDDR5X LPDDR4X
Memory Frequency n/a 2133 MHz
Channels 4 2
Storage
Storage Capacity- 128 GB
- 256 GB
- 512 GB
128 GB
Storage TypeUFS 4.0UFS 2.1
Memory CardNoNo

Software

OS Android 13 (Upgradeable to Android 14) Android 9.0 (Upgradeable to Android 11)
OS Size 29.7 GB 13.5 GB
UI Skin One UI 6.1 MIUI 12.5

Battery

Volume 3900 mAh 3300 mAh
Max Charging Power 25 W 27 W
Battery Type Li-ion Li-Po
Removable No No
Wireless Charging Yes (10 W) Yes (20 W)
Reverse Charging Yes (Wireless) No
Fast Charging Yes (57% in 30 min) Yes Quick Charge 4 (50% in 30 min)
Full Charge Time 1:16 h 1:30 h
Battery Life Test
Battery Life
Samsung Galaxy S23
22:02
Xiaomi Mi 9
17:14
Web Browsing08:12 h06:08 h
Video Playback13:41 h11:37 h
Games05:20 h04:07 h
Standby Mode109 h83 h

Main camera

Matrix 50 MP 48 MP
Photo resolution 8160x6120 pixels 8000x6000 pixels
Zoom Optical, 3x Optical, 2x
Flash LED Dual LED
Stabilization Optical Digital
8K Recording Yes (Up to 30 fps) No
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) 960 fps (1080p)
Wide-angle lens 120 ° 117 °
Lenses count Standard: 50 MP
Telephoto: 10 MP
Ultra-wide: 12 MP
Standard: 48 MP
Telephoto: 12 MP
Ultra-wide: 16 MP
Features - Bokeh effect
- Pro mode
- RAW support
- Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP48 MP
Aperturef/1.8f/1.8
Focal length23 mm27 mm
SensorSamsung S5KGN3Sony IMX586
Sensor size1/1.571/2
Pixel size1 μm0.8 μm
AutofocusPhase autofocus (Dual Pixel)Laser autofocus
StabilizationOpticalDigital
Telephoto
Matrix10 MP12 MP
Aperturef/2.4f/2.2
Focal length70 mm54 mm
SensorSamsung S5K3K1Samsung S5K3M5
Sensor size1/3.941/3.6
Pixel size1 μm1 μm
StabilizationOpticalDigital
Ultra-wide lens
Matrix12 MP16 MP
Aperturef/2.2f/2.2
Focal length13 mm13 mm
SensorSony IMX564Sony IMX481
Sensor size1/2.551/3.0
Pixel size1.4 μm1 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Samsung Galaxy S23
129
Xiaomi Mi 9
112
Video quality
Samsung Galaxy S23
137
Xiaomi Mi 9
99
Overall camera score
Samsung Galaxy S23
133
Xiaomi Mi 9
107
Bokeh70n/a
Preview72n/a
Zoom126n/a

Front camera

Matrix 12 MP 20 MP
Photo resolution 4000x3000 pixels 5184x3880 pixels
Aperture f/2.2 f/2.0
Focal length 26 mm 18 mm
Sensor Samsung S5K3LU CMOS
Sensor size 1/3.24 1/3
Pixel size 1.12 μm 0.9 μm
Autofocus Phase autofocus (Dual Pixel) 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 6E (802.11 a/b/g/n/ac/ax) Wi-Fi 5 (802.11 a/b/g/n/ac)
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 5.3 5
Bluetooth features LE LE, A2DP
USB type USB Type-C USB Type-C
USB version 3.2 2
USB features - Charging
- USB Storage Mode
- OTG
- Charging
- USB Storage Mode
- USB-Host mode
- OTG
DisplayPort Yes DP 1.2 n/a
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- GPS
- GLONASS
- Beidou
- Galileo
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 BandsGSM 850/1700/1900/2100MhzGSM 850, GSM 900, GSM 1800, GSM 1900
3G BandsUMTS 6/5/8/34HSDPA 850, HSDPA 900, HSDPA 1900, HSDPA 2100
LTE Bands*LTE (B/B1/B2/B3/B4/B5/B7/B8/B12/B13/B16/B17/B18/B19/B20/B25/B27/B28/B29/B30/B38/B39/B40/B41/B66/B71)LTE (B800/B900/B1800/B2100/B2300/B2500/B2600)
LTE category2020
5G SupportYesNo

Sound

Speakers Stereo Mono
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes No
Speaker Test
Max Volume
Samsung Galaxy S23
91.5 dB
Xiaomi Mi 9
87.1 dB

Other

Class Flagship Flagship
Announced February, 2023 yr February, 2019 yr
Release Date February, 2023 yr April, 2019 yr
Launch Price ($) 799 460
Sensors - Hall Sensor
- Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
- Hall Sensor
- Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included No n/a

Note

Samsung Galaxy S23:

The 128GB version uses slower UFS 3.1 memory, while the 256GB and 512GB models have UFS 4.0.

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

Results

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

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