Asus ROG Phone 9 FE vs Xiaomi Redmi 15 4G

Compared 2 smartphones : Asus ROG Phone 9 FE Manufactured in February, 2025, with display 6.78 with chipsetQualcomm Snapdragon 8 Gen 3, vs Xiaomi Redmi 15 4G, Manufactured in August, 2025 with chipsetQualcomm Snapdragon 685. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Asus ROG Phone 9 FE
  • Higher pixel density: 388ppi
  • Higher refresh rate: 185Hz
  • Newer Bluetooth version: 5.4 vs 5
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Supports Dolby Atmos
Reasons to choose Xiaomi Redmi 15 4G
  • Larger display: 6.9in
  • Lighter design: 224g vs 225g
  • Higher battery capacity: 7000mAh vs 5500mAh
  • Infrared port

Versions

Available versions and configurations
Memory Options 16/256 GB - 6/128 GB
- 8/256 GB

Review

Key Specs Asus ROG Phone 9 FE 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.
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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

Display

Display quality comparison
Type AMOLED IPS LCD
Size 6.78 in 6.9 in
Resolution 1080x2400 pixels 1080x2340 pixels
Aspect ratio 20:9 19.5:9
Pixel density 388 ppi 374 ppi
Refresh rate 185 Hz 144 Hz
Adaptive refresh rate Yes Yes
Max brightness 2500 nits n/a
HDR support Yes HDR10+ No
Touch Sampling Rate 720 Hz n/a
Screen-to-body ratio 88.2 % 83.1 %
Features - DCI-P3
- Always-On Display
- DC dimming
n/a

Design & Build

Design and ergonomics comparison
Height 163.8 mm (6.45 in) 171.1 mm (6.74 in)
Width 76.8 mm (3.02 in) 82.1 mm (3.23 in)
Thickness 8.9 mm (0.35 in) 8.6 mm (0.34 in)
Weight 225 g (7.94 oz) 224 g (7.9 oz)
Water resistance IP68 IP64
Cooling system Vapor chamber n/a
Back panel Glass Plastic
Frame Metal Plastic
Colors Black - Black
- Gray
- Purple
Fingerprint sensor Yes In-Display Yes, In-Button
Screen-to-body ratio
Asus ROG Phone 9 FE
88.2 %
Xiaomi Redmi 15 4G
83.1 %

Performance

Testing Asus ROG Phone 9 FE and Xiaomi Redmi 15 4G In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Gen 3 Qualcomm Snapdragon 685
Max Frequency 3300 MHz 2800 MHz
CPU Cores 8 (1 + 3 + 2 + 2) 8 (4 + 4)
Architecture - 2/2.27 (Cortex-A520)
- 2/2.96 (Cortex-A720)
- 3/3.15 (Cortex-A720)
- 1/3.3 (Cortex-X4)
- 4/1.9 (Cortex-A53)
- 4/2.8 (Cortex-A73)
Process TSMC TSMC
Transistor Size 4 nm 6 nm
Neural Processor Hexagon Hexagon 686
Graphics Adreno 750 Adreno 610
GPU Cores 1536 128
GPU Frequency 903-1000 MHz 1260 MHz
FLOPS 2774 GFLOPS 322.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Asus ROG Phone 9 FE
2233
Xiaomi Redmi 15 4G
475
Geekbench 6 (Multi-Core)
Asus ROG Phone 9 FE
7088
Xiaomi Redmi 15 4G
1514
Geekbench 6 (Single-Core)2233475
Geekbench 6 (Multi-Core)70881514
AnTuTu 10
AnTuTu 10
Asus ROG Phone 9 FE
2256113
Xiaomi Redmi 15 4G
380990
CPU512568114885
GPU90469357988
Memory421740103236
UX417112104881
NanoReview Score2256113380990

Memory

RAM
RAM Size 16 GB 6 GB
Memory Type LPDDR5X LPDDR4X
Memory Frequency 4800 MHz 2133 MHz
Channels 4 2
Storage
Storage Capacity256 GB128 GB
Storage TypeUFS 4.0UFS 2.2
Memory CardNoMicroSD

Software

OS Android 15 Android 15
UI Skin ROG UI HyperOS 2.0

Battery

Volume 5500 mAh 7000 mAh
Max Charging Power 65 W 33 W
Battery Type Li-Po n/a
Removable No No
Wireless Charging Yes (15 W) No
Reverse Charging Yes No
Fast Charging Yes (81% in 30 min) Yes
Full Charge Time 0:39 h n/a

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels n/a
Zoom Digital Digital
Flash LED LED
Stabilization Optical Digital
8K Recording Yes (Up to 30 fps) No
4K Recording Yes (Up to 60 fps) No
1080p Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
Slow Motion 120 fps (2160p) n/a
Wide-angle lens 120 ° n/a
Lenses count Standard: 50 MP
Ultra-wide: 13 MP
Macro: 5 MP
Standard: 50 MP
Depth
Features - Bokeh effect
- Pro mode
Bokeh effect
Main lens
Matrix50 MP50 MP
Aperturef/1.9f/1.8
Focal length24 mmn/a
SensorSony Lytia LYT-700Cn/a
Sensor size1/1.56n/a
Pixel size1 μmn/a
AutofocusPhase autofocusPhase autofocus
StabilizationOpticalDigital
Ultra-wide lens
Matrix13 MPn/a
Aperturef/2.2n/a
Focal length13 mmn/a
StabilizationDigitaln/a

Front camera

Matrix 32 MP 8 MP
Aperture f/2.5 f/2.0
Focal length 22 mm n/a
Sensor CMOS n/a
Sensor size 1/3.2 n/a
Pixel size 7 μm 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 7 (802.11 a/b/g/n/ac/ax/be) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
- Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5.4 5
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 3.2 2
USB features - Charging
- USB Storage Mode
- OTG
- Charging
- USB Storage Mode
- OTG
DisplayPort Yes DP 1.4 n/a
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC
- GPS
- GLONASS
- Beidou
- Galileo
NFC* Yes Yes
Infrared Port No Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850 / 900 / 1800 / 1900MHzn/a
3G BandsWCDMA 850 / 900 / 1700 / 1800 / 1900 / 2100MHzn/a
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B17/B18/B19/B20/B25/B26/B28/B32/B34/B38/B39/B40/B41/B42/B43/B48/B66)n/a
LTE category18n/a
5G SupportYesNo

Sound

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

Other

Class Flagship Budget
Announced February, 2025 yr August, 2025 yr
Release Date February, 2025 yr August, 2025 yr
Launch Price ($) 890 n/a
MSRP ($) n/a 150
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 65 W Yes, 33 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Asus ROG Phone 9 FE the clear winner in this comparison.

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