Home Phone comparison Itel itel S25 Ultra and Xiaomi 17 Ultra - Which is better?

Itel itel S25 Ultra vs Xiaomi 17 Ultra

56 out 100
Itel itel S25 Ultra
VS
95 out 100
Xiaomi 17 Ultra
Itel itel S25 Ultra
Xiaomi 17 Ultra

Compared 2 smartphones : Itel itel S25 Ultra Manufactured in November, 2024, with display 6.78 with chipsetUnisoc T620, vs Xiaomi 17 Ultra, Manufactured in December, 2025 with chipsetQualcomm Snapdragon 8 Elite Gen 5. 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 Itel itel S25 Ultra
  • Lighter design: 163g vs 224g
Reasons to choose Xiaomi 17 Ultra
  • Larger display: 6.9in
  • Higher pixel density: 416ppi
  • Higher battery capacity: 6800mAh vs 5000mAh
  • Newer Bluetooth version: 5.4 vs 5
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Supports Dolby Atmos
  • Built-in eSIM

Versions

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

Review

Key Specs Itel itel S25 Ultra and Xiaomi 17 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.
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Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Itel itel S25 Ultra
vs
Xiaomi 17 Ultra

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.78 in 6.9 in
Resolution 1080x2436 pixels 1200x2608 pixels
Aspect ratio 20.5:9 19.5:9
Pixel density 393 ppi 416 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes Yes (1-120 Hz)
Max brightness 1400 nits 1200 nits
HDR support No Yes, Dolby Vision
Screen-to-body ratio 89.1 % 92.4 %
Features - DCI-P3
- Always-On Display		 - DCI-P3
- Always-On Display
- DC dimming

Design & Build

Design and ergonomics comparison
Height 164.2 mm (6.46 in) 162.9 mm (6.41 in)
Width 74.6 mm (2.94 in) 77.6 mm (3.06 in)
Thickness 6.9 mm (0.27 in) 8.29 mm (0.33 in)
Weight 163 g (5.75 oz) 224 g (7.9 oz)
Water resistance IP64 IP69
Cooling system n/a Vapor chamber
Back panel Plastic Eco Leather
Frame Plastic Metal
Colors - Black
- Gray
- Purple		 - White
- Black
- Green
- Purple
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Itel itel S25 Ultra
89.1 %
Xiaomi 17 Ultra
92.4 %

Performance

Testing Itel itel S25 Ultra and Xiaomi 17 Ultra In benchmarks
Processor
Chipset Unisoc T620 Qualcomm Snapdragon 8 Elite Gen 5
Max Frequency 2200 MHz 4610 MHz
CPU Cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6/1.8 (Cortex-A55)
- 2/2.2 (Cortex-A75)		 6/3.63 ()
Process TSMC TSMC
Transistor Size 12 nm 3 nm
Neural Processor No Hexagon
Graphics Mali-G57 MP1 Adreno 840
GPU Cores 32 1536
GPU Frequency 850 MHz 1200 MHz
FLOPS 54.4 GFLOPS 3686.4 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Itel itel S25 Ultra
497
Xiaomi 17 Ultra
3510
Geekbench 6 (Multi-Core)
Itel itel S25 Ultra
1541
Xiaomi 17 Ultra
10993
Geekbench 6 (Single-Core)4973510
Geekbench 6 (Multi-Core)154110993
Geekbench Compute (GPU)599n/a
Sources: Geekbench v6 [Itel itel S25 Ultra]
AnTuTu 10
AnTuTu 10
Itel itel S25 Ultra
332915
Xiaomi 17 Ultra
3963774
CPU1010471198653
GPU302811458267
Memory116778501472
UX84809805382
NanoReview Score3329153963774

Memory

RAM
RAM Size 8 GB 12 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 2133 MHz 5300 MHz
Channels 2 4
Storage
Storage Capacity- 128 GB
- 256 GB
- 512 GB		512 GB
Storage TypeUFS 2.2UFS 4.1
Memory Cardn/aNo

Software

OS Android 14 Android 16
UI Skin itel OS 14.5 HyperOS 3

Battery

Volume 5000 mAh 6800 mAh
Max Charging Power 18 W 90 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging No Yes (50 W)
Reverse Charging No Yes, (Wireless)
Fast Charging Yes Yes

Main camera

Matrix 50 MP 50 MP
Photo resolution n/a 8192x6144 pixels
Zoom Digital Optical, 4.3x
Flash LED Dual LED
Stabilization Digital Optical
8K Recording No Yes (Up to 30 fps)
4K Recording No Yes (Up to 120 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 120 fps)
Slow Motion n/a 1920 fps (720p)
Wide-angle lens n/a 115 °
Lenses count Standard: 50 MP
Macro
Depth		 Standard: 50 MP
Telephoto: 200 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP50 MP
Aperturef/1.6f/1.7
Focal lengthn/a23 mm
Sensor sizen/a1/1 (1)
Pixel sizen/a1.6 μm
AutofocusPhase autofocusLaser autofocus
StabilizationDigitalOptical
Telephoto
Matrixn/a200 MP
Aperturen/af/2.4 - 3.0
Focal lengthn/a100 mm
Sensor sizen/a1/1.4 (0.71)
Pixel sizen/a0.56 μm
Stabilizationn/aOptical
Ultra-wide lens
Matrixn/a50 MP
Aperturen/af/2.2
Focal lengthn/a14 mm
Sensorn/aOmniVision OV50M40
Sensor sizen/a1/2.88 (0.35)
Pixel sizen/a0.61 μm
Stabilizationn/aDigital

Front camera

Matrix 32 MP 50 MP
Photo resolution n/a 8192x6144 pixels
Aperture f/2.2 f/2.2
Focal length 22 mm n/a
Sensor n/a CMOS
Sensor size n/a 1/2.88 (0.35)
Pixel size n/a 0.61 μm
Autofocus No Phase autofocus
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 2160p (4K) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be)
Wi-Fi features - Dual Band
- 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 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
GPS - GPS
- GLONASS
- Beidou
- Galileo		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC
NFC* Yes Yes
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoYes
Hybrid SlotNoNo
2G Bandsn/aGSM B2 / B3 / B5 / B8
3G Bandsn/aWCDMA B1 / B2 / B4 / B5 / B6 / B8 / B19
LTE Bands*n/aLTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B66/B71)
5G SupportNoYes

Sound

Speakers Mono n/a
3.5 mm Jack No No
FM Radio No No
Dolby Atmos No Yes

Other

Class Budget Flagship
Announced November, 2024 yr December, 2025 yr
Release Date November, 2024 yr December, 2025 yr
Launch Price ($) 140 n/a
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 18 W Yes, 100 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi 17 Ultra the clear winner in this comparison.

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