Home Phone comparison Xiaomi 15 and Samsung Galaxy S23 Ultra - Which is better?

Xiaomi 15 vs Samsung Galaxy S23 Ultra

93 out 100
Xiaomi 15
VS
81 out 100
Samsung Galaxy S23 Ultra
Xiaomi 15
Samsung Galaxy S23 Ultra

Compared 2 smartphones : Xiaomi 15 Manufactured in October, 2024, with display 6.36 with chipsetQualcomm Snapdragon 8 Elite, vs Samsung Galaxy S23 Ultra, Manufactured in February, 2023with chipsetSnapdragon 8 Gen 2 Mobile Platform for Galaxy. 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 15
  • Lighter design: 191g vs 233g
  • Higher battery capacity: 5400mAh vs 5000mAh
  • Newer Bluetooth version: 5.4 vs 5.3
  • Infrared port
  • Includes charger
Reasons to choose Samsung Galaxy S23 Ultra
  • Larger display: 6.8in
  • Higher pixel density: 500ppi

Versions

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

Review

Key Specs Xiaomi 15 and Samsung Galaxy S23 Ultra
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:
Xiaomi 15
vs
Galaxy S23 Ultra

Display

Display quality comparison
Type AMOLED Dynamic AMOLED
Size 6.36 in 6.8 in
Resolution 1200x2670 pixels 1440x3088 pixels
Aspect ratio 20:9 19.3:9
Pixel density 460 ppi 500 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes (1-120 Hz)
Max brightness 1500 nits 850 nits
HDR support Yes Dolby Vision Yes HDR10+
Touch Sampling Rate 300 Hz 240 Hz
Screen-to-body ratio 90.1 % 89.5 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
Display test
Peak brightness (auto)
Xiaomi 15
1508 nits
Samsung Galaxy S23 Ultra
1269 nits
sRGB gamut99.5 %96.9 %
PWM (Flicker)120 Hz240 Hz
Response time1 ms2 ms
Contrast∞ Infinite∞ Infinite
Sources: NotebookCheck [Xiaomi 15], [Samsung Galaxy S23 Ultra]

Design & Build

Design and ergonomics comparison
Height 152.3 mm (6 in) 163.4 mm (6.43 in)
Width 71.2 mm (2.8 in) 78.1 mm (3.07 in)
Thickness 8.08 mm (0.32 in) 8.9 mm (0.35 in)
Weight 191 g (6.74 oz) 233 g (8.22 oz)
Water resistance IP68 IP68
Cooling system Vapor chamber Vapor chamber
Back panel Glass Glass
Frame Metal Metal
Colors - White
- Black
- Silver
- Green
- Purple		 - White
- Black
- Gray
- Blue
- Green
- Red
- Purple
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Xiaomi 15
90.1 %
Samsung Galaxy S23 Ultra
89.5 %

Performance

Testing Xiaomi 15 and Samsung Galaxy S23 Ultra In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite Snapdragon 8 Gen 2 Mobile Platform for Galaxy
Max Frequency 4320 MHz 3360 MHz
CPU Cores 8 (2 + 6) 8 (1 + 2 + 2 + 3)
Architecture - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))		 - 3/2 (Cortex-A510)
- 2/2.8 (Cortex-A710)
- 2/2.8 (Cortex-A715)
- 1/3.2 (Cortex-X3)
Process TSMC TSMC
Transistor Size 3 nm 4 nm
Neural Processor Hexagon Hexagon
Graphics Adreno 830 Adreno 740
GPU Cores 1536 1536
GPU Frequency 1100 MHz 719 MHz
FLOPS 3379.2 GFLOPS 2089 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 15
2934
Samsung Galaxy S23 Ultra
1976
Geekbench 6 (Multi-Core)
Xiaomi 15
8762
Samsung Galaxy S23 Ultra
5221
Geekbench 6 (Single-Core)29341976
Geekbench 6 (Multi-Core)87625221
Geekbench Compute (GPU)24507n/a
Sources: Geekbench v6 [Xiaomi 15]
AnTuTu 10
AnTuTu 10
Xiaomi 15
2620144
Samsung Galaxy S23 Ultra
1541246
CPU584725371084
GPU1142381600732
Memory519406299004
UX373632270462
NanoReview Score26201441541246
3DMark Wild Life
3DMark Wild Life
Xiaomi 15
20823
Samsung Galaxy S23 Ultra
12160
Max Surface Temp.n/a34.8 °C
Stabilityn/a64 %
Graphics Testn/a72 fps
Graphics Scoren/a12160
Sources: 3DMark [Xiaomi 15], [Samsung Galaxy S23 Ultra]
PCMark 3.0
PCMark 3.0
Xiaomi 15
18292
Samsung Galaxy S23 Ultra
16130
Writing score2250819799
Web score1882616101
Video editing80607815
Data manipulation1460513142
NanoReview Score1829216130

Memory

RAM
RAM Size - 12 GB
- 16 GB		 - 8 GB
- 12 GB
Memory Type LPDDR5X LPDDR5X
Memory Frequency n/a 4200 MHz
Channels 2 4
Storage
Storage Capacity- 256 GB
- 512 GB
- 1024 GB		- 256 GB
- 512 GB
- 1024 GB
Storage TypeUFS 4.0UFS 4.0
Memory CardNoNo

Software

OS Android 15 Android 13 (Upgradeable to Android 14)
OS Size 21 GB 39.9 GB
UI Skin HyperOS 2.0 One UI 6.1

Battery

Volume 5400 mAh 5000 mAh
Max Charging Power 90 W 45 W
Battery Type Silicon Carbon (Si/C) Li-ion
Removable No No
Wireless Charging Yes (50 W) Yes (15 W)
Reverse Charging Yes (Wireless) Yes (Wireless)
Fast Charging Yes (83% in 30 min) Yes (68% in 30 min)
Full Charge Time 0:45 h 0:59 h
Battery Life Test
Battery Life
Xiaomi 15
31:54
Samsung Galaxy S23 Ultra
26:01
Web Browsing13:20 h09:57 h
Video Playback19:22 h15:38 h
Games07:10 h06:22 h
Standby Mode150 h130 h

Main camera

Matrix 50 MP 200 MP
Photo resolution 8192x6144 pixels 16320x12240 pixels
Zoom Optical, 2.6x Optical, 10x
Flash Dual LED LED
Stabilization Optical Optical
8K Recording Yes (Up to 30 fps) Yes (Up to 30 fps)
4K Recording Yes (Up to 120 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 120 fps)
Slow Motion 1920 fps (720p) 960 fps (1080p)
Wide-angle lens 115 ° 120 °
Lenses count Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 50 MP		 Standard: 200 MP
Telephoto: 10 MP
Telephoto: 10 MP
Ultra-wide: 12 MP
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP200 MP
Aperturef/1.6f/1.7
Focal length23 mm23 mm
SensorOmniVision OVX9000 Light Fusion 900Samsung ISOCELL HP2
Sensor size1/1.311/1.3
Pixel size1.2 μm0.64 μm
AutofocusLaser autofocusLaser autofocus
StabilizationOpticalOptical
Telephoto
Matrix50 MP10 MP
Aperturef/2.0f/4.9
Focal length60 mm230 mm
SensorSamsung S5KJN5Sony IMX754
Sensor size1/2.761/3.52
Pixel size0.64 μm1.12 μm
StabilizationOpticalOptical
Ultra-wide lens
Matrix50 MP12 MP
Aperturef/2.2f/2.2
Focal length14 mm13 mm
SensorSamsung S5KJN1Sony IMX564
Sensor size1/2.761/2.55
Pixel size0.64 μm1.4 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi 15
150
Samsung Galaxy S23 Ultra
139
Video quality
Xiaomi 15
133
Samsung Galaxy S23 Ultra
137
Overall camera score
Xiaomi 15
147
Samsung Galaxy S23 Ultra
140
Bokeh7570
Preview8773
Zoom152141
Sources: DxOMark [Xiaomi 15], [Samsung Galaxy S23 Ultra]

Front camera

Matrix 32 MP 12 MP
Photo resolution 6528x4896 pixels 4000x3000 pixels
Aperture f/2.0 f/2.2
Focal length 22 mm 26 mm
Sensor Omnivision OV32B Samsung S5K3LU
Sensor size 1/3.14 1/3.24
Pixel size 0.7 μm 1.12 μm
Autofocus No Phase autofocus
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps 2160p (4K) at 60 fps
TOF 3D sensor No No
Selfie camera DxOMark results
Photo quality
Xiaomi 15
n/a
Samsung Galaxy S23 Ultra
139
Video quality
Xiaomi 15
n/a
Samsung Galaxy S23 Ultra
145

Connectivity

Wi-Fi version Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) 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 5.4 5.3
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 3.2 3.2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort Yes Yes DP 1.2
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Yes Yes
Infrared Port Yes No
Connectivity
SIM Count*21
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *YesYes
Hybrid SlotNoNo
2G BandsGSM B2/B3/B5/B8n/a
3G BandsWCDMA B1/B2/B4/B5/B6/B8/B19n/a
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)n/a
LTE categoryn/a20
5G SupportYesYes

Sound

Speakers Stereo Stereo
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Xiaomi 15
91.3 dB
Samsung Galaxy S23 Ultra
91.8 dB

Other

Class Flagship Flagship
Announced October, 2024 yr February, 2023 yr
Release Date October, 2024 yr February, 2023 yr
Launch Price ($) 757 1199
Sensors - 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 Yes 90 W No
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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

Survey

Which smartphone would you pick?
4 (57.14%)
3 (42.86%)
Total Votes: 7

User comments

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