Home Phone comparison Itel itel S25 Ultra and Xiaomi Redmi 15 4G - Which is better?

Itel itel S25 Ultra vs Xiaomi Redmi 15 4G

56 out 100
Itel itel S25 Ultra
VS
60 out 100
Xiaomi Redmi 15 4G
Itel itel S25 Ultra
Xiaomi Redmi 15 4G

Compared 2 smartphones : Itel itel S25 Ultra Manufactured in November, 2024, with display 6.78 with chipsetUnisoc T620, vs Xiaomi Redmi 15 4G, Manufactured in August, 2025 with chipsetQualcomm Snapdragon 685. 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
  • Higher pixel density: 393ppi
  • Lighter design: 163g vs 224g
Reasons to choose Xiaomi Redmi 15 4G
  • Larger display: 6.9in
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 7000mAh vs 5000mAh

Versions

Available versions and configurations
Memory Options - 8/128 GB
- 8/256 GB
- 8/512 GB		 - 6/128 GB
- 8/256 GB

Review

Key Specs Itel itel S25 Ultra and Xiaomi Redmi 15 4G
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:
Itel itel S25 Ultra
vs
Xiaomi Redmi 15 4G

Display

Display quality comparison
Type AMOLED IPS LCD
Size 6.78 in 6.9 in
Resolution 1080x2436 pixels 1080x2340 pixels
Aspect ratio 20.5:9 19.5:9
Pixel density 393 ppi 374 ppi
Refresh rate 120 Hz 144 Hz
Adaptive refresh rate Yes Yes
Max brightness 1400 nits n/a
HDR support No No
Screen-to-body ratio 89.1 % 83.1 %
Features - DCI-P3
- Always-On Display		 n/a

Design & Build

Design and ergonomics comparison
Height 164.2 mm (6.46 in) 171.1 mm (6.74 in)
Width 74.6 mm (2.94 in) 82.1 mm (3.23 in)
Thickness 6.9 mm (0.27 in) 8.6 mm (0.34 in)
Weight 163 g (5.75 oz) 224 g (7.9 oz)
Water resistance IP64 IP64
Back panel Plastic Plastic
Frame Plastic Plastic
Colors - Black
- Gray
- Purple		 - Black
- Gray
- Purple
Fingerprint sensor Yes In-Display Yes, In-Button
Screen-to-body ratio
Itel itel S25 Ultra
89.1 %
Xiaomi Redmi 15 4G
83.1 %

Performance

Testing Itel itel S25 Ultra and Xiaomi Redmi 15 4G In benchmarks
Processor
Chipset Unisoc T620 Qualcomm Snapdragon 685
Max Frequency 2200 MHz 2800 MHz
CPU Cores 8 (2 + 6) 8 (4 + 4)
Architecture - 6/1.8 (Cortex-A55)
- 2/2.2 (Cortex-A75)		 - 4/1.9 (Cortex-A53)
- 4/2.8 (Cortex-A73)
Process TSMC TSMC
Transistor Size 12 nm 6 nm
Neural Processor No Hexagon 686
Graphics Mali-G57 MP1 Adreno 610
GPU Cores 32 128
GPU Frequency 850 MHz 1260 MHz
FLOPS 54.4 GFLOPS 322.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Itel itel S25 Ultra
497
Xiaomi Redmi 15 4G
475
Geekbench 6 (Multi-Core)
Itel itel S25 Ultra
1541
Xiaomi Redmi 15 4G
1514
Geekbench 6 (Single-Core)497475
Geekbench 6 (Multi-Core)15411514
Geekbench Compute (GPU)599n/a
Sources: Geekbench v6 [Itel itel S25 Ultra]
AnTuTu 10
AnTuTu 10
Itel itel S25 Ultra
332915
Xiaomi Redmi 15 4G
380990
CPU101047114885
GPU3028157988
Memory116778103236
UX84809104881
NanoReview Score332915380990

Memory

RAM
RAM Size 8 GB 6 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 2133 MHz 2133 MHz
Channels 2 2
Storage
Storage Capacity- 128 GB
- 256 GB
- 512 GB		128 GB
Storage TypeUFS 2.2UFS 2.2
Memory Cardn/aMicroSD

Software

OS Android 14 Android 15
UI Skin itel OS 14.5 HyperOS 2.0

Battery

Volume 5000 mAh 7000 mAh
Max Charging Power 18 W 33 W
Battery Type Li-Po n/a
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes Yes

Main camera

Matrix 50 MP 50 MP
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K Recording No No
4K Recording No No
1080p Recording Yes (Up to 30 fps) Yes (Up to 30 fps)
Lenses count Standard: 50 MP
Macro
Depth		 Standard: 50 MP
Depth
Features - Bokeh effect
- Pro mode		 Bokeh effect
Main lens
Matrix50 MP50 MP
Aperturef/1.6f/1.8
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalDigital

Front camera

Matrix 32 MP 8 MP
Aperture f/2.2 f/2.0
Focal length 22 mm n/a
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 5
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort No n/a
GPS - GPS
- GLONASS
- Beidou
- Galileo		 - GPS
- GLONASS
- Beidou
- Galileo
NFC* Yes Yes
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
5G SupportNoNo

Sound

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

Other

Class Budget Budget
Announced November, 2024 yr August, 2025 yr
Release Date November, 2024 yr August, 2025 yr
Launch Price ($) 140 n/a
MSRP ($) n/a 150
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 18 W Yes, 33 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

No clear favorite identified yet; updates may follow as new data arrives.

Survey

Which smartphone would you pick?
0 (0%)
0 (0%)
Total Votes: 0

User comments

Share your opinion or ask questions below