Xiaomi Redmi 15 4G vs Xiaomi 15T

Compared 2 smartphones : Xiaomi Redmi 15 4G Manufactured in August, 2025, with display 6.9 with chipsetQualcomm Snapdragon 685, vs Xiaomi 15T, Manufactured in September, 2025with chipsetMediaTek Dimensity 8400 Ultra. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Xiaomi Redmi 15 4G
  • Larger display: 6.9in
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 7000mAh vs 5500mAh
  • Includes charger
Reasons to choose Xiaomi 15T
  • Higher pixel density: 447ppi
  • Lighter design: 194g vs 224g
  • Newer Bluetooth version: 6.0 vs 5
  • Supports Dolby Atmos
  • Built-in eSIM

Versions

Available versions and configurations
Memory Options - 6/128 GB
- 8/256 GB
- 12/256 GB
- 12/512 GB

Review

Key Specs Xiaomi Redmi 15 4G and Xiaomi 15T
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
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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:
vs

Display

Display quality comparison
Type IPS LCD AMOLED
Size 6.9 in 6.83 in
Resolution 1080x2340 pixels 1280x2772 pixels
Aspect ratio 19.5:9 19.5:9
Pixel density 374 ppi 447 ppi
Refresh rate 144 Hz 120 Hz
Adaptive refresh rate Yes Yes
HDR support No Yes, Dolby Vision
Touch Sampling Rate n/a 480 Hz
Screen-to-body ratio 83.1 % 89.9 %
Features n/a - DCI-P3
- Always-On Display
- DC dimming

Design & Build

Design and ergonomics comparison
Height 171.1 mm (6.74 in) 163.2 mm (6.43 in)
Width 82.1 mm (3.23 in) 78 mm (3.07 in)
Thickness 8.6 mm (0.34 in) 7.5 mm (0.3 in)
Weight 224 g (7.9 oz) 194 g (6.84 oz)
Water resistance IP64 IP68
Cooling system n/a Vapor chamber
Back panel Plastic n/a
Frame Plastic Plastic
Colors - Black
- Gray
- Purple
- Black
- Gray
- Rose Gold
Fingerprint sensor Yes, In-Button Yes, In-Display
Screen-to-body ratio
Xiaomi Redmi 15 4G
83.1 %
Xiaomi 15T
89.9 %

Performance

Testing Xiaomi Redmi 15 4G and Xiaomi 15T In benchmarks
Processor
Chipset Qualcomm Snapdragon 685 MediaTek Dimensity 8400 Ultra
Max Frequency 2800 MHz 3250 MHz
CPU Cores 8 (4 + 4) 8 (1 + 3 + 4)
Architecture - 4/1.9 (Cortex-A53)
- 4/2.8 (Cortex-A73)
- 4/2.1 (Cortex-A725)
- 3/3 (Cortex-A725)
- 1/3.25 (Cortex-A725)
Process TSMC TSMC
Transistor Size 6 nm 4 nm
Neural Processor Hexagon 686 MediaTek NPU 880
Graphics Adreno 610 Mali-G720 MP7
GPU Cores 128 896
GPU Frequency 1260 MHz 1300 MHz
FLOPS 322.6 GFLOPS 2329.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Redmi 15 4G
475
Xiaomi 15T
1603
Geekbench 6 (Multi-Core)
Xiaomi Redmi 15 4G
1514
Xiaomi 15T
6413
Geekbench 6 (Single-Core)4751603
Geekbench 6 (Multi-Core)15146413
Geekbench Compute (GPU)n/a11228
AnTuTu 10
AnTuTu 10
Xiaomi Redmi 15 4G
380990
Xiaomi 15T
1872827
CPU114885448609
GPU57988683486
Memory103236396486
UX104881344246
NanoReview Score3809901872827

Memory

RAM
RAM Size 6 GB 12 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 2133 MHz n/a
Channels 2 4
Storage
Storage Capacity128 GB256 GB
Storage TypeUFS 2.2UFS 4.1
Memory CardMicroSDNo

Software

OS Android 15 Android 15
UI Skin HyperOS 2.0 HyperOS 2.0

Battery

Volume 7000 mAh 5500 mAh
Max Charging Power 33 W 67 W
Battery Type n/a Li-Po
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes Yes (50% in 22 min)
Full Charge Time n/a 0:50 h

Main camera

Matrix 50 MP 50 MP
Photo resolution n/a 8192x6144 pixels
Zoom Digital Optical, 2x
Flash LED Dual LED
Stabilization Digital Optical
8K Recording No No
4K Recording No Yes (Up to 60 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
Slow Motion n/a 240 fps (1080p)
Wide-angle lens n/a 120 °
Lenses count Standard: 50 MP
Depth
Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 12 MP
Features Bokeh effect - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP50 MP
Aperturef/1.8f/1.7
Focal lengthn/a23 mm
Sensorn/aOmnivision OV50 Light Hunter 800
Sensor sizen/a1/1.55
Pixel sizen/a1 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalOptical
Telephoto
Matrixn/a50 MP
Aperturen/af/1.9
Focal lengthn/a46 mm
Sensorn/aSamsung S5KJN5
Sensor sizen/a1/2.76
Pixel sizen/a0.64 μm
Stabilizationn/aDigital
Ultra-wide lens
Matrixn/a12 MP
Aperturen/af/2.2
Focal lengthn/a15 mm
Sensor sizen/a1/3.06
Pixel sizen/a1.12 μm
Stabilizationn/aDigital

Front camera

Matrix 8 MP 32 MP
Aperture f/2.0 f/2.2
Focal length n/a 21 mm
Sensor n/a CMOS
Sensor size n/a 1/3.44
Pixel size n/a 0.64 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 2160p (4K) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 6E (802.11 a/b/g/n/ac/ax)
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 6.0
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 n/a No
GPS - GPS
- GLONASS
- Beidou
- Galileo
- GPS
- GLONASS
- Beidou
- Galileo
- QZSS
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 2/3/5/8
3G Bandsn/aWCDMA B1/2/4/5/8/6/19
LTE Bands*n/aLTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B26/B28/B32/B66/B71)
5G SupportNoYes

Sound

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

Other

Class Budget Mid-range
Announced August, 2025 yr September, 2025 yr
Release Date August, 2025 yr September, 2025 yr
MSRP ($) 150 650
Sensors - Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes, 33 W No
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi 15T the clear winner in this comparison.

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