Home Phone comparison Xiaomi Redmi 9A and Xiaomi Redmi K90 - Which is better?

Xiaomi Redmi 9A vs Xiaomi Redmi K90

36 out 100
Xiaomi Redmi 9A
VS
91 out 100
Xiaomi Redmi K90
Xiaomi Redmi 9A
Xiaomi Redmi K90

Compared 2 smartphones : Xiaomi Redmi 9A Manufactured in August, 2020, with display 6.53 with chipsetMediaTek Helio G25, 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 9A
  • Lighter design: 194g vs 206g
Reasons to choose Xiaomi Redmi K90
  • Larger display: 6.59in
  • Higher refresh rate: 120Hz
  • Higher battery capacity: 7100mAh vs 5000mAh
  • Newer Bluetooth version: 5.4 vs 5
  • Infrared port
  • Includes charger
  • Fingerprint scanner

Versions

Available versions and configurations
Memory Options - 2/32 GB
- 3/32 GB
- 4/64 GB
- 4/128 GB
- 6/128 GB		 - 12/256 GB
- 12/512 GB
- 16/256 GB
- 16/512 GB
- 16/1024 GB

Review

Key Specs Xiaomi Redmi 9A 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 9A
vs
Xiaomi Redmi K90

Display

Display quality comparison
Type IPS LCD OLED
Size 6.53 in 6.59 in
Resolution 720x1600 pixels 1156x2510 pixels
Aspect ratio 20:9 19.5:9
Pixel density 269 ppi n/a
Refresh rate 60 Hz 120 Hz
Adaptive refresh rate No Yes (1-120 Hz)
Max brightness 400 nits n/a
HDR support No Yes, Dolby Vision
Touch Sampling Rate n/a 480 Hz
Screen-to-body ratio 81.1 % 89.9 %
Features n/a - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi Redmi 9A
434 nits
Xiaomi Redmi K90
n/a
sRGB gamut92.9 %n/a
Response time40 msn/a
Contrast1318:1n/a
Sources: NotebookCheck [Xiaomi Redmi 9A]

Design & Build

Design and ergonomics comparison
Height 164.9 mm (6.49 in) 157.49 mm (6.2 in)
Width 77 mm (3.03 in) 75.25 mm (2.96 in)
Thickness 9 mm (0.35 in) 8 mm (0.31 in)
Weight 194 g (6.84 oz) 206 g (7.27 oz)
Water resistance No IP68
Cooling system n/a Vapor chamber
Back panel Plastic n/a
Frame Plastic Metal
Colors - Gray
- Blue
- Green		 - White
- Black
- Blue
- Purple
Fingerprint sensor No Yes, In-Display
Screen-to-body ratio
Xiaomi Redmi 9A
81.1 %
Xiaomi Redmi K90
89.9 %

Performance

Testing Xiaomi Redmi 9A and Xiaomi Redmi K90 In benchmarks
Processor
Chipset MediaTek Helio G25 Qualcomm Snapdragon 8 Elite
Max Frequency 2000 MHz 4470 MHz
CPU Cores 8 (4 + 4) 8 (2 + 6)
Architecture - 4/1.5 (Cortex-A53)
- 4/2 (Cortex-A53)		 - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))
Process TSMC TSMC
Transistor Size 12 nm 3 nm
Neural Processor No Hexagon
Graphics PowerVR GE8320 Adreno 830
GPU Cores 32 1536
GPU Frequency 650 MHz 1100 MHz
FLOPS 41.8 GFLOPS 3379.2 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Redmi 9A
472
Xiaomi Redmi K90
2856
Geekbench 6 (Multi-Core)
Xiaomi Redmi 9A
1524
Xiaomi Redmi K90
8814
Geekbench 6 (Single-Core)4722856
Geekbench 6 (Multi-Core)15248814
Geekbench Compute (GPU)n/a24427
Sources: Geekbench v6 [Xiaomi Redmi K90]
AnTuTu 10
AnTuTu 10
Xiaomi Redmi 9A
125125
Xiaomi Redmi K90
3218814
CPU50728916055
GPU168441150313
Memory28611513749
UX28942638697
NanoReview Score1251253218814

Memory

RAM
RAM Size - 2 GB
- 4 GB
- 6 GB		 12 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 1600 MHz 5300 MHz
Channels 2 4
Storage
Storage Capacity- 32 GB
- 64 GB
- 128 GB		256 GB
Storage TypeeMMC 5.1UFS 4.1
Memory CardMicroSDNo

Software

OS Android 10 (Upgradeable to Android 11) Android 16
OS Size 11 GB n/a
UI Skin MIUI 12.5 Enhanced HyperOS 3

Battery

Volume 5000 mAh 7100 mAh
Max Charging Power 10 W 100 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging No No
Reverse Charging No Yes
Fast Charging No Yes
Full Charge Time 2:55 h n/a
Battery Life Test
Battery Life
Xiaomi Redmi 9A
24:07
Xiaomi Redmi K90
n/a
Web Browsing10:08 hn/a
Video Playback13:37 hn/a
Games05:37 hn/a
Standby Mode118 hn/a

Main camera

Matrix 13 MP 50 MP
Photo resolution 4128x3096 pixels 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 No 960 fps (1080p)
Wide-angle lens n/a 120 °
Lenses count Standard: 13 MP Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode
Main lens
Matrix13 MP50 MP
Aperturef/2.2f/1.9
Focal length28 mmn/a
Sensorn/aOmnivision OV50 Light Hunter 800
Sensor sizen/a1/1.55
Pixel size1 μm1 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 5 MP 20 MP
Photo resolution 2560x1960 pixels n/a
Aperture f/2.2 f/2.2
Sensor CMOS Omnivision OV20B
Sensor size n/a 1/4
Pixel size 1.12 μm 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 4 (802.11 a/b/g/n) Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be)
Wi-Fi features - 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 5.4
Bluetooth features LE, HID, A2DP LE
USB type Micro USB 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* No Yes
Infrared Port No Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM B2/3/5/8n/a
3G BandsWCDMA B1/2/4/5/8n/a
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B20/B28)n/a
LTE category4n/a
5G SupportNoYes

Sound

Speakers Mono n/a
3.5 mm Jack Yes No
FM Radio Yes No
Dolby Atmos No n/a
Speaker Test
Max Volume
Xiaomi Redmi 9A
76.5 dB
Xiaomi Redmi K90
n/a

Other

Class Budget Flagship
Announced June, 2020 yr October, 2025 yr
Release Date August, 2020 yr October, 2025 yr
Launch Price ($) 100 n/a
MSRP ($) n/a 370
Sensors - Proximity Sensor
- Accelerometer
- Ambient Light Sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included n/a 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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