Xiaomi Redmi Note 9 vs Google Pixel 4a Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

8.5
Xiaomi Redmi Note 9
9.1
Google Pixel 4a
Xiaomi Redmi Note 9 Google Pixel 4a
Released · May 12, 2020
Released · Aug 20, 2020
6.5-inch · 2340x1080px
5.8-inch · 2340x1080px
Quad camera
Single camera
3GB · 64GB
6GB · 128GB
5020 mAh
3140 mAh
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Check Accessories Check Accessories

Availability

Officially announced
Apr 30, 2020 Aug 03, 2020
Prices (MSRP)
$349

Design

Dimensions
6.39 x 3.04 x 0.35 inches
162.3 x 77.2 x 8.9 mm
5.67 x 2.73 x 0.32 inches
144 x 69.4 x 8.2 mm
Weight
7.02 oz / 199.0 g 5.04 oz / 143.0 g
Materials
Frame: Plastic Back: Plastic
Frame: Plastic
Resistance
Splash
Biometrics
Fingerprint (touch) Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Forest green, Polar white, Midnight gray Just black

Display

Size
6.5-inch, 83.52% screen-to-body 5.8-inch, 82.53% screen-to-body
Type
IPS LCD OLED, 60Hz, HDR
Resolution
2340x1080px, 19.5:9 ratio, 395 PPI 2340x1080px, 19.5:9 ratio, 444 PPI
Protection
Corning Gorilla Glass 5 Corning Gorilla Glass 3
PhoneArena Display Test
Bright Max (20% APL)
Untested Untested
Bright Min
0.8 (Excellent) 2 (Good)

Hardware

System chip
MediaTek Helio G85 (12 nm) Snapdragon 730G SM7150-AA (8 nm)
Processor
Octa-core
2000 MHz
Arm Cortex-A75 and ArmCortex-A55
Octa-core
2200 MHz
Kryo 470
GPU
Mali G52 MC2 Adreno 618
Memory
3GB (LPDDR4)/64GB (eMMC 5.1)
4GB/128GB
6GB (LPDDR4)/128GB (UFS 2.1)
Storage expansion
microSDXC up to 128 GB not expandable
OS
Android (10) Android (12, 11, 10)

Battery

Type
5020 mAh, Li - Polymer 3140 mAh, Li - Polymer
Charging
Fast charging
Reverse wired charging
USB Power Delivery
Charge speed
Wired: 18.0W Wired: 18.0W
PhoneArena Battery Tests
Battery Life Estimate
Untested
Browsing
Untested
Video
10h 43min
Gaming
7h 34min
Battery Life Estimate
4h 15min
Browsing
9h 27min
Video
6h 48min
Gaming
4h 51min

Camera

Rear
Quad camera Single camera
Main camera
48 MP (PDAF)
Aperture size: F1.8
Sensor size: 1/2"
Pixel size: 0.8 μm
12.2 MP (OIS, PDAF)
Aperture size: F1.7
Focal length: 27 mm
Sensor size: 1/2.55"
Pixel size: 1.4 μm
Second camera
8 MP (Ultra-wide)
Aperture size: F2.2
Sensor size: 1/4"
Pixel size: 1.2 μm
Third camera
2 MP (Macro, Autofocus)
Aperture size: F2.4
Pixel size: 1.75 μm
Fourth camera
2 MP
Aperture size: F2.4
Sensor size: 1/5"
Pixel size: 1.7 μm
Flash
LED LED
Video recording
1080p (30 fps), 720p (120 fps) 4K UHD (30 fps), 1080p (120 fps), 720p (240 fps)
EIS
Front
13 MP (HDR)
Video capture: 1080p (30 fps)
8 MP
Video capture: 1080p (30 fps)

Connectivity & Features

Bluetooth
5.0 5.1
WLAN
dual-band
Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac
dual-band
MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac
USB
Type-C, USB 2.0 Type-C, USB 3.1
Sensors
Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor Accelerometer, Gyroscope, Compass, Barometer, Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T4
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning
Other
NFC, Infrared NFC

Multimedia

Headphones
3.5mm jack 3.5mm jack
Speakers
Earpiece, Loudspeaker Earpiece, Multiple speakers
Features
aptX, aptX-HD
Screen mirroring
Wireless screen share Wireless screen share
Additional microphone(s)
Noise cancellation Noise cancellation

Cellular

LTE Bands
1, 2, 3, 4, 5, 7, 8, 20, 28 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 20, 25, 26, 28, 29, 30, 66, 71
TDD Bands
38, 40, 41 38, 39, 40, 41
3G Bands
1, 2, 4, 5, 8 1, 2, 4, 5, 8
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s LTE-A Cat 11 (600/75 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes Yes
SIM type
Nano SIM Nano SIM, eSIM
VoLTE
Yes

Regulatory Approval

FCC approval
Date approved: Jun 25, 2020
FCC ID value: A4RG025J
Measured SAR
Head: 1.18 W/kg
Body: 1.19 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.00 W/kg

Alternative variants

with 128GB storage
Memory 4GB/128GB
FCC OKs Cingular\'s purchase of AT&T Wireless