Xiaomi 15 Ultra vs Samsung Galaxy Z Fold Special Edition

Compared 2 smartphones : Xiaomi 15 Ultra Manufactured in February, 2025, with display 6.73 with chipsetQualcomm Snapdragon 8 Elite, vs Samsung Galaxy Z Fold Special Edition, Manufactured in October, 2024 with chipsetQualcomm Snapdragon 8 Gen 3. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Xiaomi 15 Ultra
  • Higher pixel density: 522ppi
  • Lighter design: 226g vs 236g
  • Higher battery capacity: 5410mAh vs 4400mAh
  • Newer Bluetooth version: 6.0 vs 5.3
  • Infrared port
  • Includes charger
Reasons to choose Samsung Galaxy Z Fold Special Edition
  • Larger display: 8in

Versions

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

Review

Key Specs Xiaomi 15 Ultra and Samsung Galaxy Z Fold Special Edition
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 Dynamic AMOLED
Size 6.73 in 8 in
Resolution 1440x3200 pixels 1968x2184 pixels
Aspect ratio 20:9 n/a
Pixel density 522 ppi 367 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes (1-120 Hz)
HDR support Yes Dolby Vision Yes HDR10+
Touch Sampling Rate 300 Hz n/a
Screen-to-body ratio 90 % 91.2 %
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 Z Fold Special Edition
n/a
sRGB gamut99.7 %n/a
PWM (Flicker)120 Hzn/a
Response time1 msn/a
Contrast∞ Infiniten/a

Design & Build

Design and ergonomics comparison
Height 161.3 mm (6.35 in) 157.9 mm (6.22 in)
Width 75.3 mm (2.96 in) 142.6 mm (5.61 in)
Thickness 9.35 mm (0.37 in) 5.6 mm (0.22 in)
Weight 226 g (7.97 oz) 236 g (8.32 oz)
Water resistance IP68 IP48
Cooling system Vapor chamber Vapor chamber
Back panel Glass Glass
Frame Metal Metal
Colors - White
- Black
- Silver
- Green
Black
Fingerprint sensor Yes In-Display Yes In-Button
Screen-to-body ratio
Xiaomi 15 Ultra
90 %
Samsung Galaxy Z Fold Special Edition
91.2 %

Performance

Testing Xiaomi 15 Ultra and Samsung Galaxy Z Fold Special Edition In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite Qualcomm Snapdragon 8 Gen 3
Max Frequency 4320 MHz 3390 MHz
CPU Cores 8 (2 + 6) 8 (1 + 3 + 2 + 2)
Architecture - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))
- 2/2.27 (Cortex-A520)
- 2/2.96 (Cortex-A720)
- 3/3.15 (Cortex-A720)
- 1/3.3 (Cortex-X4)
Process TSMC TSMC
Transistor Size 3 nm 4 nm
Neural Processor Hexagon Hexagon
Graphics Adreno 830 Adreno 750
GPU Cores 1536 1536
GPU Frequency 1100 MHz 1000 MHz
FLOPS 3379.2 GFLOPS 2774 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 15 Ultra
3008
Samsung Galaxy Z Fold Special Edition
2279
Geekbench 6 (Multi-Core)
Xiaomi 15 Ultra
9065
Samsung Galaxy Z Fold Special Edition
6910
Geekbench 6 (Single-Core)30082279
Geekbench 6 (Multi-Core)90656910
AnTuTu 10
AnTuTu 10
Xiaomi 15 Ultra
2544373
Samsung Galaxy Z Fold Special Edition
1885765
CPU558586440781
GPU1040161795002
Memory520300344091
UX425326305891
NanoReview Score25443731885765

Memory

RAM
RAM Size 12 GB 16 GB
Memory Type LPDDR5X LPDDR5X
Memory Frequency 5333 MHz 4200 MHz
Channels 2 4
Storage
Storage Capacity256 GB512 GB
Storage TypeUFS 4.1UFS 4.0
Memory CardNoNo

Software

OS Android 15 Android 14
OS Size 23.9 GB n/a
UI Skin HyperOS 2.0 One UI 6.1.1

Battery

Volume 5410 mAh 4400 mAh
Max Charging Power 90 W 25 W
Battery Type Silicon Carbon (Si/C) Li-Po
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 (38% in 30 min)
Full Charge Time 0:51 h 1:40 h
Battery Life Test
Battery Life
Xiaomi 15 Ultra
30:03
Samsung Galaxy Z Fold Special Edition
n/a
Web Browsing12:19 hn/a
Video Playback18:43 hn/a
Games06:45 hn/a
Standby Mode141 hn/a

Main camera

Matrix 50 MP 200 MP
Photo resolution 8192x6144 pixels n/a
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) 960 fps (720p)
Wide-angle lens 115 ° 123 °
Lenses count Standard: 50 MP
Telephoto: 200 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Depth
Standard: 200 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/1.63f/1.8
Focal length23 mmn/a
SensorSony LYT-900n/a
Sensor size1/1.0n/a
Pixel size1.6 μmn/a
AutofocusLaser autofocusPhase autofocus
StabilizationOpticalOptical
Telephoto
Matrix200 MP10 MP
Aperturef/2.6f/2.4
Focal length100 mm66 mm
SensorSamsung ISOCELL S5KHP9Samsung ISOCELL 3K1
Sensor size1/1.41/3.94
Pixel size0.56 μm1 μm
StabilizationOpticalOptical
Ultra-wide lens
Matrix50 MP12 MP
Aperturef/2.2f/2.2
Focal length14 mm13 mm
SensorSamsung S5KJN5n/a
Sensor size1/2.76n/a
Pixel size0.64 μm1.12 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi 15 Ultra
158
Samsung Galaxy Z Fold Special Edition
n/a
Video quality
Xiaomi 15 Ultra
134
Samsung Galaxy Z Fold Special Edition
n/a
Overall camera score
Xiaomi 15 Ultra
153
Samsung Galaxy Z Fold Special Edition
n/a
Bokeh80n/a
Preview89n/a

Front camera

Matrix 32 MP 10 MP
Photo resolution 6528x4896 pixels 3648x2736 pixels
Aperture f/2.0 f/2.2
Focal length 22 mm 24 mm
Sensor Omnivision OV32B Sony IMX374
Sensor size 1/3.14 1/3
Pixel size 0.7 μm 1.22 μm
Autofocus No No
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 7 (802.11 a/b/g/n/ac/ax/be)
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
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC
- GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Yes Yes
Infrared Port Yes No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
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/B38/B39/B40/B41/B66)
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 Z Fold Special Edition
n/a

Other

Class Flagship Flagship
Announced February, 2025 yr October, 2024 yr
Release Date February, 2025 yr October, 2024 yr
Launch Price ($) n/a 1999
MSRP ($) 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.

* 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.

Survey

Which smartphone would you pick?
5 (62.5%)
3 (37.5%)
Total Votes: 8

User comments

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