Home Phone comparison Xiaomi Redmi K90 and Xiaomi Redmi K90 Ultra - Which is better?

Xiaomi Redmi K90 vs Xiaomi Redmi K90 Ultra

91 out 100
Xiaomi Redmi K90
VS
87 out 100
Xiaomi Redmi K90 Ultra
Xiaomi Redmi K90
Xiaomi Redmi K90 Ultra

Compared 2 smartphones : Xiaomi Redmi K90 Manufactured in October, 2025, with display 6.59 with chipsetQualcomm Snapdragon 8 Elite, vs Xiaomi Redmi K90 Ultra, Manufactured in June, 2026 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 K90
  • Lighter design: 206g vs 227g
Reasons to choose Xiaomi Redmi K90 Ultra
  • Larger display: 6.83in
  • Higher refresh rate: 165Hz
  • Higher battery capacity: 8550mAh vs 7100mAh
  • Supports Dolby Atmos

Versions

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

Review

Key Specs Xiaomi Redmi K90 and Xiaomi Redmi K90 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
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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 K90
vs
Xiaomi Redmi K90 Ultra

Display

Display quality comparison
Type OLED AMOLED
Size 6.59 in 6.83 in
Resolution 1156x2510 pixels 1280x2772 pixels
Aspect ratio 19.5:9 19.5:9
Pixel density n/a 447 ppi
Refresh rate 120 Hz 165 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes
HDR support Yes, Dolby Vision Yes, Dolby Vision
Touch Sampling Rate 480 Hz 480 Hz
Screen-to-body ratio 89.9 % 90.2 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming

Design & Build

Design and ergonomics comparison
Height 157.49 mm (6.2 in) 162.91 mm (6.41 in)
Width 75.25 mm (2.96 in) 77.93 mm (3.07 in)
Thickness 8 mm (0.31 in) 8.18 mm (0.32 in)
Weight 206 g (7.27 oz) 227 g (8.01 oz)
Water resistance IP68 IP69
Cooling system Vapor chamber Active fan
Frame Metal Metal
Colors - White
- Black
- Blue
- Purple		 - Black
- Silver
- Blue
Fingerprint sensor Yes, In-Display Yes, In-Display
Screen-to-body ratio
Xiaomi Redmi K90
89.9 %
Xiaomi Redmi K90 Ultra
90.2 %

Performance

Testing Xiaomi Redmi K90 and Xiaomi Redmi K90 Ultra In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite Qualcomm Snapdragon 8 Elite
Max Frequency 4470 MHz 4320 MHz
CPU Cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))		 - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))
Process TSMC TSMC
Transistor Size 3 nm 3 nm
Neural Processor Hexagon Hexagon
Graphics Adreno 830 n/a
GPU Cores 1536 n/a
GPU Frequency 1100 MHz n/a
FLOPS 3379.2 GFLOPS n/a
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Redmi K90
2856
Xiaomi Redmi K90 Ultra
3261
Geekbench 6 (Multi-Core)
Xiaomi Redmi K90
8814
Xiaomi Redmi K90 Ultra
10224
Geekbench 6 (Single-Core)28563261
Geekbench 6 (Multi-Core)881410224
Geekbench Compute (GPU)24427n/a
Sources: Geekbench v6 [Xiaomi Redmi K90], [Xiaomi Redmi K90 Ultra]
AnTuTu 10
AnTuTu 10
Xiaomi Redmi K90
3218814
Xiaomi Redmi K90 Ultra
3233695
CPU916055924949
GPU11503131161971
Memory513749466704
UX638697680071
NanoReview Score32188143233695

Memory

RAM
RAM Size 12 GB 12 GB
Memory Type LPDDR5X LPDDR5X
Memory Frequency 5300 MHz 5300 MHz
Channels 4 4
Storage
Storage Capacity256 GB256 GB
Storage TypeUFS 4.1UFS 4.1
Memory CardNoNo

Software

OS Android 16 Android 16
UI Skin HyperOS 3 HyperOS 3

Battery

Volume 7100 mAh 8550 mAh
Max Charging Power 100 W 100 W
Battery Type Silicon Carbon (Si/C) Silicon Carbon (Si/C)
Removable No No
Wireless Charging No No
Reverse Charging Yes Yes
Fast Charging Yes Yes

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8192x6144 pixels
Zoom Optical, 2.5x Digital
Flash Dual LED Dual LED
Stabilization Optical Optical
8K Recording Yes (Up to 30 fps) Yes (Up to 30 fps)
4K Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 960 fps (1080p) 1920 fps (710p)
Wide-angle lens 120 ° n/a
Lenses count Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 50 MP		 Standard: 50 MP
Ultra-wide: 8 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP50 MP
Aperturef/1.9f/1.7
Focal lengthn/a24 mm
SensorOmnivision OV50 Light Hunter 800n/a
Sensor size1/1.551/1.55 (0.65)
Pixel size1 μm1 μm
AutofocusPhase autofocus (Dual Pixel)Phase autofocus
StabilizationOpticalOptical
Telephoto
Matrix50 MPn/a
Aperturef/3.0n/a
SensorOmnivision OV50Mn/a
Sensor size1/2.76n/a
Pixel size0.64 μmn/a
StabilizationOpticaln/a
Ultra-wide lens
Matrix50 MP8 MP
Aperturef/2.2f/2.2
Focal lengthn/a15 mm
SensorOmnivision OV08Fn/a
Sensor sizen/a1/4.0 (0.25)
Pixel sizen/a1.14 μm
StabilizationDigitalDigital

Front camera

Matrix 20 MP 20 MP
Photo resolution n/a 5184x3888 pixels
Aperture f/2.2 f/2.2
Sensor Omnivision OV20B n/a
Sensor size 1/4 n/a
Pixel size 0.8 μm n/a
Autofocus n/a No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 60 fps 1080p (Full HD) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- 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 5.4 5.4
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version n/a 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort n/a No
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC		 - 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
2G Bandsn/aGSM B3/B5/B8
3G Bandsn/aWCDMA B1/B4/B5/B6/B8/B19
LTE Bands*n/aLTE (B1/B3/B4/B5/B7/B8/B19/B28/B34/B38/B39/B40/B41/B42/B48/B66)
5G SupportYesYes

Sound

Speakers n/a 2.1
3.5 mm Jack No No
FM Radio No No
Dolby Atmos n/a Yes

Other

Class Flagship Flagship
Announced October, 2025 yr June, 2026 yr
Release Date October, 2025 yr June, 2026 yr
MSRP ($) 370 440
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes, 100 W Yes, 100 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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