Home Phone comparison Xiaomi Redmi 15 5G and Xiaomi Redmi K90 - Which is better?

Xiaomi Redmi 15 5G vs Xiaomi Redmi K90

61 out 100
Xiaomi Redmi 15 5G
VS
91 out 100
Xiaomi Redmi K90
Xiaomi Redmi 15 5G
Xiaomi Redmi K90

Compared 2 smartphones : Xiaomi Redmi 15 5G Manufactured in August, 2025, with display 6.9 with chipsetQualcomm Snapdragon 6s Gen 3, vs Xiaomi Redmi K90, Manufactured in October, 2025 with chipsetQualcomm Snapdragon 8 Elite. 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 Xiaomi Redmi 15 5G
  • Larger display: 6.9in
  • Higher refresh rate: 144Hz
Reasons to choose Xiaomi Redmi K90
  • Lighter design: 206g vs 224g
  • Higher battery capacity: 7100mAh vs 7000mAh
  • Newer Bluetooth version: 5.4 vs 5.1

Versions

Available versions and configurations
Memory Options - 4/128 GB
- 6/128 GB
- 8/256 GB		 - 12/256 GB
- 12/512 GB
- 16/256 GB
- 16/512 GB
- 16/1024 GB

Review

Key Specs Xiaomi Redmi 15 5G and Xiaomi Redmi K90
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:
Xiaomi Redmi 15 5G
vs
Xiaomi Redmi K90

Display

Display quality comparison
Type IPS LCD OLED
Size 6.9 in 6.59 in
Resolution 1080x2340 pixels 1156x2510 pixels
Aspect ratio 19.5:9 19.5:9
Pixel density 374 ppi n/a
Refresh rate 144 Hz 120 Hz
Adaptive refresh rate Yes Yes (1-120 Hz)
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) 157.49 mm (6.2 in)
Width 82.1 mm (3.23 in) 75.25 mm (2.96 in)
Thickness 8.6 mm (0.34 in) 8 mm (0.31 in)
Weight 224 g (7.9 oz) 206 g (7.27 oz)
Water resistance IP64 IP68
Cooling system n/a Vapor chamber
Back panel Plastic n/a
Frame Plastic Metal
Colors - Black
- Gray
- Green		 - White
- Black
- Blue
- Purple
Fingerprint sensor Yes, In-Button Yes, In-Display
Screen-to-body ratio
Xiaomi Redmi 15 5G
83.1 %
Xiaomi Redmi K90
89.9 %

Performance

Testing Xiaomi Redmi 15 5G and Xiaomi Redmi K90 In benchmarks
Processor
Chipset Qualcomm Snapdragon 6s Gen 3 Qualcomm Snapdragon 8 Elite
Max Frequency 2300 MHz 4470 MHz
CPU Cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6/2 (Cortex-A55)
- 2/2.3 (Cortex-A78)		 - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))
Process TSMC TSMC
Transistor Size 6 nm 3 nm
Neural Processor Hexagon Hexagon
Graphics Adreno 619 Adreno 830
GPU Cores 256 1536
GPU Frequency 900 MHz 1100 MHz
FLOPS 460.8 GFLOPS 3379.2 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Redmi 15 5G
935
Xiaomi Redmi K90
2856
Geekbench 6 (Multi-Core)
Xiaomi Redmi 15 5G
2109
Xiaomi Redmi K90
8814
Geekbench 6 (Single-Core)9352856
Geekbench 6 (Multi-Core)21098814
Geekbench Compute (GPU)n/a24427
Sources: Geekbench v6 [Xiaomi Redmi K90]
AnTuTu 10
AnTuTu 10
Xiaomi Redmi 15 5G
473154
Xiaomi Redmi K90
3218814
CPU153170916055
GPU916871150313
Memory99792513749
UX128505638697
NanoReview Score4731543218814

Memory

RAM
RAM Size 4 GB 12 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 2133 MHz 5300 MHz
Channels 2 4
Storage
Storage Capacity128 GB256 GB
Storage TypeUFS 2.2UFS 4.1
Memory CardNoNo

Software

OS Android 15 Android 16
UI Skin HyperOS 2.0 HyperOS 3

Battery

Volume 7000 mAh 7100 mAh
Max Charging Power 33 W 100 W
Battery Type n/a Silicon Carbon (Si/C)
Removable No No
Wireless Charging No No
Reverse Charging No Yes
Fast Charging Yes Yes

Main camera

Matrix 50 MP 50 MP
Photo resolution n/a 8192x6144 pixels
Zoom Digital Optical, 2.5x
Flash LED Dual LED
Stabilization Digital Optical
8K Recording No Yes (Up to 30 fps)
4K Recording No Yes (Up to 60 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
Slow Motion n/a 960 fps (1080p)
Wide-angle lens n/a 120 °
Lenses count Standard: 50 MP
Depth		 Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Features Bokeh effect - Bokeh effect
- Pro mode
Main lens
Matrix50 MP50 MP
Aperturef/1.8f/1.9
Sensorn/aOmnivision OV50 Light Hunter 800
Sensor sizen/a1/1.55
Pixel sizen/a1 μm
AutofocusPhase autofocusPhase autofocus (Dual Pixel)
StabilizationDigitalOptical
Telephoto
Matrixn/a50 MP
Aperturen/af/3.0
Sensorn/aOmnivision OV50M
Sensor sizen/a1/2.76
Pixel sizen/a0.64 μm
Stabilizationn/aOptical
Ultra-wide lens
Matrixn/a50 MP
Aperturen/af/2.2
Sensorn/aOmnivision OV08F
Stabilizationn/aDigital

Front camera

Matrix 8 MP 20 MP
Aperture f/2.0 f/2.2
Sensor n/a Omnivision OV20B
Sensor size n/a 1/4
Pixel size n/a 0.8 μm
Autofocus No n/a
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 1080p (Full HD) 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 5.1 5.4
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 2 n/a
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
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 *NoNo
Hybrid SlotNoNo
5G SupportYesYes

Sound

3.5 mm Jack Yes No
FM Radio Yes No

Other

Class Mid-range Flagship
Announced August, 2025 yr October, 2025 yr
Release Date August, 2025 yr October, 2025 yr
MSRP ($) 230 370
Sensors - Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes, 33 W Yes, 100 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Xiaomi Redmi K90 the clear winner in this comparison.

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