Xiaomi Poco X7 vs Samsung Galaxy S25 Ultra

Compared 2 smartphones : Xiaomi Poco X7 Manufactured in January, 2025, with display 6.67 with chipsetMediaTek Dimensity 7300 Ultra, vs Samsung Galaxy S25 Ultra, Manufactured in February, 2025 with chipsetQualcomm Snapdragon 8 Elite. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Xiaomi Poco X7
  • Lighter design: 185.5g vs 218g
  • Higher battery capacity: 5110mAh vs 5000mAh
  • Infrared port
  • Includes charger
Reasons to choose Samsung Galaxy S25 Ultra
  • Larger display: 6.9in
  • Higher pixel density: 498ppi
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort

Versions

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

Review

Key Specs Xiaomi Poco X7 and Samsung Galaxy S25 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

Display

Display quality comparison
Type AMOLED Dynamic AMOLED
Size 6.67 in 6.9 in
Resolution 1220x2712 pixels 1440x3120 pixels
Aspect ratio 20:9 19.5:9
Pixel density 446 ppi 498 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes Yes (1-120 Hz)
Max brightness 1200 nits 2600 nits
HDR support Yes Dolby Vision Yes HDR10+
Touch Sampling Rate 480 Hz 240 Hz
Screen-to-body ratio 88.9 % 92.4 %
Features - DCI-P3
- Always-On Display
- DC dimming
- DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi Poco X7
1107 nits
Samsung Galaxy S25 Ultra
1403 nits
sRGB gamut100 %97.7 %
PWM (Flicker)120 Hz240 Hz
Response time1 ms1 ms
Contrast∞ Infinite∞ Infinite

Design & Build

Design and ergonomics comparison
Height 162.33 mm (6.39 in) 162.8 mm (6.41 in)
Width 74.42 mm (2.93 in) 77.6 mm (3.06 in)
Thickness 8.4 mm (0.33 in) 8.2 mm (0.32 in)
Weight 185.5 g (6.54 oz) 218 g (7.69 oz)
Water resistance IP68 IP68
Cooling system Vapor chamber Vapor chamber
Back panel Plastic Glass
Frame Plastic Metal
Colors - Black
- Silver
- Green
- Black
- Silver
- Gray
- Blue
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Xiaomi Poco X7
88.9 %
Samsung Galaxy S25 Ultra
92.4 %

Performance

Testing Xiaomi Poco X7 and Samsung Galaxy S25 Ultra In benchmarks
Processor
Chipset MediaTek Dimensity 7300 Ultra Qualcomm Snapdragon 8 Elite
Max Frequency 2500 MHz 4470 MHz
CPU Cores 8 (4 + 4) 8 (2 + 6)
Architecture - 4/2 (Cortex-A55)
- 4/2.5 (Cortex-A78)
- 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))
Process TSMC TSMC
Transistor Size 4 nm 3 nm
Neural Processor MediaTek APU 655 Hexagon
Graphics Mali-G615 MP2 Adreno 830
GPU Cores 256 1536
GPU Frequency 1047 MHz 1100 MHz
FLOPS 536.1 GFLOPS 3379.2 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Poco X7
1031
Samsung Galaxy S25 Ultra
3147
Geekbench 6 (Multi-Core)
Xiaomi Poco X7
2842
Samsung Galaxy S25 Ultra
9750
Geekbench 6 (Single-Core)10313147
Geekbench 6 (Multi-Core)28429750
Geekbench Compute (GPU)250725681
AnTuTu 10
AnTuTu 10
Xiaomi Poco X7
675069
Samsung Galaxy S25 Ultra
2795139
CPU203194659871
GPU1433381294167
Memory159275471319
UX169262369782
NanoReview Score6750692795139

Memory

RAM
RAM Size - 8 GB
- 12 GB
- 12 GB
- 16 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 2133 MHz 5333 MHz
Channels 2 2
Storage
Storage Capacity- 128 GB
- 256 GB
- 512 GB
- 256 GB
- 512 GB
- 1024 GB
Storage TypeUFS 2.2UFS 4.0
Memory CardNoNo

Software

OS Android 14 Android 15
OS Size n/a 30.4 GB
UI Skin HyperOS 1.0 One UI 7.0

Battery

Volume 5110 mAh 5000 mAh
Max Charging Power 45 W 45 W
Battery Type Li-Po Li-ion
Removable No No
Wireless Charging No Yes (25 W)
Reverse Charging No Yes (Wireless)
Fast Charging Yes (62% in 30 min) Yes (72% in 30 min)
Full Charge Time 1:05 h 0:59 h
Battery Life Test
Battery Life
Xiaomi Poco X7
19:25
Samsung Galaxy S25 Ultra
31:10
Web Browsing06:50 h11:10 h
Video Playback10:59 h19:32 h
Games05:14 h06:22 h
Standby Mode104 h160 h

Main camera

Matrix 50 MP 200 MP
Photo resolution 8192x6144 pixels 16320x12240 pixels
Zoom Digital Optical, 5x
Flash LED LED
Stabilization Optical Optical
8K Recording No Yes (Up to 30 fps)
4K Recording Yes (Up to 30 fps) Yes (Up to 120 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 240 fps)
Slow Motion 240 fps (720p) 240 fps (1080p)
Wide-angle lens 120 ° 120 °
Lenses count Standard: 50 MP
Ultra-wide: 8 MP
Macro: 2 MP
Standard: 200 MP
Telephoto: 50 MP
Telephoto: 12 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode
- Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP200 MP
Aperturef/1.5f/1.7
Focal length26 mm23 mm
SensorSony IMX882Samsung ISOCELL S5KHP2
Sensor size1/1.961/1.3
Pixel size0.8 μm0.6 μm
AutofocusPhase autofocusPhase autofocus
StabilizationOpticalOptical
Telephoto
Matrixn/a50 MP
Aperturen/af/3.4
Focal lengthn/a111 mm
Sensorn/aSony IMX854
Sensor sizen/a1/2.52
Pixel sizen/a0.7 μm
Stabilizationn/aOptical
Ultra-wide lens
Matrix8 MP50 MP
Aperturef/2.2f/1.9
Focal length15 mm13 mm
SensorSony IMX355Samsung ISOCELL S5KJN3
Sensor size1/4.01/2.5
Pixel size1.12 μm0.7 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi Poco X7
n/a
Samsung Galaxy S25 Ultra
144
Video quality
Xiaomi Poco X7
n/a
Samsung Galaxy S25 Ultra
143
Overall camera score
Xiaomi Poco X7
n/a
Samsung Galaxy S25 Ultra
146
Bokehn/a70
Previewn/a81
Zoomn/a149

Front camera

Matrix 20 MP 12 MP
Photo resolution 5184x3888 pixels 4000x3000 pixels
Aperture f/2.2 f/2.2
Focal length 25 mm 26 mm
Sensor Omnivision OV20B Samsung S5K3LU
Sensor size 1/4.0 1/3.2
Pixel size 0.7 μm 1.12 μm
Autofocus No Phase autofocus (Dual Pixel)
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 60 fps 2160p (4K) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 6 (802.11 a/b/g/n/ac/ax) 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 5.4 5.4
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 2 3.2
USB features - Charging
- USB Storage Mode
- OTG
- Charging
- USB Storage Mode
- OTG
DisplayPort No Yes DP 1.2
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- 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 2/3/5/8GSM850, GSM900, DCS1800, PCS1900
3G BandsWCDMA B1/2/4/5/6/8/19UMTS B1(2100),B2(1900),B4(AWS),B5(850),B8(900)
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B18/B19/B20/B28/B38/B40/B41/B42/B48/B66)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B14/B18/B19/B20/B25/B26/B28/B29/B30/B66/B71)
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 Poco X7
91.4 dB
Samsung Galaxy S25 Ultra
93 dB

Other

Class Mid-range Flagship
Announced January, 2025 yr January, 2025 yr
Release Date January, 2025 yr February, 2025 yr
Launch Price ($) 229 1299
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 45 W No

Note

Samsung Galaxy S25 Ultra:

Supports up to 2 eSIMs. The international model has 2 physical SIM slots, while the U.S. version has 1.","Uses Grade 5 titanium and Corning Gorilla Armor 2 glass on both sides.

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

Results

After analyzing the data, we consider Samsung Galaxy S25 Ultra the clear winner in this comparison.

Survey

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