Home Phone comparison Xiaomi 15 Ultra and Samsung Galaxy S24 (Exynos) - Which is better?

Xiaomi 15 Ultra vs Samsung Galaxy S24 (Exynos)

95 out 100
Xiaomi 15 Ultra
VS
77 out 100
Samsung Galaxy S24 (Exynos)
Xiaomi 15 Ultra
Samsung Galaxy S24 (Exynos)

Compared 2 smartphones : Xiaomi 15 Ultra Manufactured in February, 2025, with display 6.73 with chipsetQualcomm Snapdragon 8 Elite, vs Samsung Galaxy S24 (Exynos), Manufactured in January, 2024 with chipsetSamsung Exynos 2400. 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 Ultra
  • Larger display: 6.73in
  • Higher pixel density: 522ppi
  • Higher battery capacity: 5410mAh vs 4000mAh
  • Newer Bluetooth version: 6.0 vs 5.3
  • Infrared port
  • Includes charger
Reasons to choose Samsung Galaxy S24 (Exynos)
  • Lighter design: 167g vs 226g

Versions

Available versions and configurations
Memory Options - 12/256 GB
- 16/512 GB
- 16/1024 GB		 - 8/128 GB
- 8/256 GB
- 8/512 GB

Review

Key Specs Xiaomi 15 Ultra and Samsung Galaxy S24 (Exynos)
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 Ultra
vs
Galaxy S24 (Exynos)

Display

Display quality comparison
Type AMOLED Dynamic AMOLED
Size 6.73 in 6.2 in
Resolution 1440x3200 pixels 1080x2340 pixels
Aspect ratio 20:9 19.5:9
Pixel density 522 ppi 416 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes (24-120 Hz)
Max brightness n/a 2600 nits
HDR support Yes Dolby Vision Yes HDR10+
Touch Sampling Rate 300 Hz 240 Hz
Screen-to-body ratio 90 % 90.9 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
Display test
Peak brightness (auto)
Xiaomi 15 Ultra
1599 nits
Samsung Galaxy S24 (Exynos)
1356 nits
sRGB gamut99.7 %98.9 %
PWM (Flicker)120 Hz483 Hz
Response time1 ms1 ms
Contrast∞ Infinite∞ Infinite
Sources: NotebookCheck [Xiaomi 15 Ultra], [Samsung Galaxy S24 (Exynos)]

Design & Build

Design and ergonomics comparison
Height 161.3 mm (6.35 in) 147 mm (5.79 in)
Width 75.3 mm (2.96 in) 70.6 mm (2.78 in)
Thickness 9.35 mm (0.37 in) 7.6 mm (0.3 in)
Weight 226 g (7.97 oz) 167 g (5.89 oz)
Water resistance IP68 IP68
Cooling system Vapor chamber Vapor chamber
Back panel Glass Glass
Frame Metal Metal
Colors - White
- Black
- Silver
- Green		 - Black
- Gray
- Blue
- Green
- Orange
- Purple
- Yellow
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Xiaomi 15 Ultra
90 %
Samsung Galaxy S24 (Exynos)
90.9 %

Performance

Testing Xiaomi 15 Ultra and Samsung Galaxy S24 (Exynos) In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite Samsung Exynos 2400
Max Frequency 4320 MHz 3210 MHz
CPU Cores 8 (2 + 6) 10 (1 + 2 + 3 + 4)
Architecture - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))		 - 4/1.95 (Cortex-A520)
- 3/2.6 (Cortex-A720)
- 2/2.9 (Cortex-A720)
- 1/3.21 (Cortex-X4)
Process TSMC Samsung
Transistor Size 3 nm 4 nm
Neural Processor Hexagon Yes
Graphics Adreno 830 Samsung Xclipse 940
GPU Cores 1536 768
GPU Frequency 1100 MHz 1095 MHz
FLOPS 3379.2 GFLOPS 3406.8 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 15 Ultra
3008
Samsung Galaxy S24 (Exynos)
2181
Geekbench 6 (Multi-Core)
Xiaomi 15 Ultra
9065
Samsung Galaxy S24 (Exynos)
6889
Geekbench 6 (Single-Core)30082181
Geekbench 6 (Multi-Core)90656889
Geekbench Compute (GPU)n/a13839
Sources: Geekbench v6 [Xiaomi 15 Ultra], [Samsung Galaxy S24 (Exynos)]
AnTuTu 10
AnTuTu 10
Xiaomi 15 Ultra
2544373
Samsung Galaxy S24 (Exynos)
1725329
CPU558586421930
GPU1040161672525
Memory520300340303
UX425326290571
NanoReview Score25443731725329
3DMark Wild Life
3DMark Wild Life
Xiaomi 15 Ultra
n/a
Samsung Galaxy S24 (Exynos)
12828
Max Surface Temp.n/a46.6 °C
Stabilityn/a55 %
Graphics Testn/a76 fps
Graphics Scoren/a12828
Sources: 3DMark [Samsung Galaxy S24 (Exynos)]
PCMark 3.0
PCMark 3.0
Xiaomi 15 Ultra
n/a
Samsung Galaxy S24 (Exynos)
17199
Writing scoren/a21676
Web scoren/a16585
Video editingn/a8032
Data manipulationn/a15131
NanoReview Scoren/a17199

Memory

RAM
RAM Size 12 GB 8 GB
Memory Type LPDDR5X LPDDR5X
Memory Frequency 5333 MHz 4200 MHz
Channels 2 4
Storage
Storage Capacity256 GB- 128 GB
- 256 GB
- 512 GB
Storage TypeUFS 4.1UFS 4.0
Memory CardNoNo

Software

OS Android 15 Android 14
OS Size 23.9 GB 24.1 GB
UI Skin HyperOS 2.0 One UI 6.1

Battery

Volume 5410 mAh 4000 mAh
Max Charging Power 90 W 25 W
Battery Type Silicon Carbon (Si/C) Li-ion
Removable No No
Wireless Charging Yes (80 W) Yes (15 W)
Reverse Charging Yes (Wireless) Yes (Wireless)
Fast Charging Yes (72% in 30 min) Yes (50% in 30 min)
Full Charge Time 0:51 h 1:15 h
Battery Life Test
Battery Life
Xiaomi 15 Ultra
30:03
Samsung Galaxy S24 (Exynos)
19:23
Web Browsing12:19 h07:20 h
Video Playback18:43 h11:58 h
Games06:45 h04:04 h
Standby Mode141 h97 h

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8160x6120 pixels
Zoom Optical, 4.3x Optical, 3x
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 60 fps)
Slow Motion 1920 fps (1080p) 240 fps (1080p)
Wide-angle lens 115 ° 120 °
Lenses count Standard: 50 MP
Telephoto: 200 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Depth		 Standard: 50 MP
Telephoto: 10 MP
Ultra-wide: 12 MP
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP50 MP
Aperturef/1.63f/1.8
Focal length23 mm24 mm
SensorSony LYT-900Samsung GN3
Sensor size1/1.01/1.57
Pixel size1.6 μm1 μm
AutofocusLaser autofocusPhase autofocus (Dual Pixel)
StabilizationOpticalOptical
Telephoto
Matrix200 MP10 MP
Aperturef/2.6f/2.4
Focal length100 mmn/a
SensorSamsung ISOCELL S5KHP9Samsung S5K3K1
Sensor size1/1.41/3.9
Pixel size0.56 μm1 μm
StabilizationOpticalOptical
Ultra-wide lens
Matrix50 MP12 MP
Aperturef/2.2f/2.2
Focal length14 mm13 mm
SensorSamsung S5KJN5Sony IMX564
Sensor size1/2.761/2.55
Pixel size0.64 μm1.4 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi 15 Ultra
158
Samsung Galaxy S24 (Exynos)
n/a
Video quality
Xiaomi 15 Ultra
134
Samsung Galaxy S24 (Exynos)
n/a
Overall camera score
Xiaomi 15 Ultra
153
Samsung Galaxy S24 (Exynos)
n/a
Bokeh80n/a
Preview89n/a
Sources: DxOMark [Xiaomi 15 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 1/3.2
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

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 6.0 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 Standbyn/a
eSIM Support *YesYes
Hybrid SlotNoNo
2G BandsGSM 2/3/5/8GSM850, GSM900, DCS1800, PCS1900
3G BandsWCDMA 1/2/4/5/6/8/19UMTS B1(2100), B2(1900), B4(AWS), B5(850), B8(900)
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)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B32/B38/B39/B40/B41/B66)
LTE categoryn/a20
5G SupportYesYes

Sound

Speakers n/a Stereo
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Xiaomi 15 Ultra
92.1 dB
Samsung Galaxy S24 (Exynos)
91.4 dB

Other

Class Flagship Flagship
Announced February, 2025 yr January, 2024 yr
Release Date February, 2025 yr January, 2024 yr
Launch Price ($) n/a 799
MSRP ($) 1099 n/a
Sensors - 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 Yes 90 W No

Note

Xiaomi 15 Ultra:

The Chinese version of the Xiaomi 15 Ultra has a 6000 mAh battery, while the international model comes with 5410 mAh, leading to a noticeable difference in battery life.

Samsung Galaxy S24 (Exynos):

The 128 GB variant features UFS 3.1 memory, other models have UFS 4.0. There are two models: one with dual Nano SIM, and the other with 1 Nano SIM + eSIM.

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

Results

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

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