Google Pixel 4a vs Xiaomi Redmi Note 9S 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.

9.1
Google Pixel 4a	Xiaomi Redmi Note 9S
Released · Aug 20, 2020	Released · Apr 07, 2020
5.8-inch · 2340x1080px	6.7-inch · 2400x1080px
Single camera	Quad camera
6GB · 128GB	4GB · 64GB
3140 mAh	5020 mAh
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Design

Dimensions
5.67 x 2.73 x 0.32 inches 144 x 69.4 x 8.2 mm	6.53 x 3.02 x 0.35 inches 165.75 x 76.68 x 8.8 mm
Weight
5.04 oz (143.0 g)	7.37 oz (209.0 g)
Materials
Back: Plastic Frame: Plastic	Back: Glass (Corning Gorilla Glass 5)
Biometrics
Fingerprint (touch)	Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Just black	Interstellar grey, Aurora blue, Glacier white

Display

Size
5.8-inch	6.7-inch
Resolution
2340x1080px, 19.5:9 ratio, 444 PPI	2400x1080px, 20:9 ratio, 395 PPI
Technology
OLED	IPS LCD
Refresh rate
60Hz
Screen-to-body
82.53 %	84.42 %
Features
HDR support, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor	HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 730G SM7150-AA (8 nm)	Qualcomm Snapdragon 720G SM7125 (8 nm)
Processor
Octa-core 2200 MHz Kryo 470	Octa-core 2300 MHz Kryo 465
GPU
Adreno 618	Adreno 618
Memory
6GB (LPDDR4)/128GB (UFS 2.1)	4GB (LPDDR4)/64GB
Storage expansion
not expandable	microSDXC up to 512 GB
OS
Android (12, 11, 10)	Android (11, 10)

Battery

Type
3140 mAh, Li - Polymer	5020 mAh, Li - Polymer
Charging
USB Power Delivery	Fast charging
Charge speed
Wired: 18.0W

Battery Life Estimate

4h 15min

Browsing

9h 27min

Video

6h 48min

Gaming

4h 51min

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Camera

Rear
Single camera	Quad camera
Main camera
12.2 MP (OIS, PDAF) Aperture size: F1.7 Focal length: 27 mm Sensor size: 1/2.55" Pixel size: 1.4 μm	48 MP (PDAF) Aperture size: F1.8 Sensor size: 1/2" Pixel size: 0.8 μm
Second camera
	8 MP (Ultra-wide) Aperture size: F2.2 Pixel size: 1.12 μm
Third camera
	5 MP (Macro, Autofocus) Aperture size: F2.4 Pixel size: 1.12 μm
Fourth camera
	2 MP (Depth information) Aperture size: F2.4 Pixel size: 1.75 μm
Flash
LED	Dual LED
Video recording
4K UHD (30 fps), 1080p (120 fps), 720p (240 fps) EIS	4K UHD (30 fps), 1080p (120 fps), 720p (960 fps)
Front
8 MP Video capture: 1080p	16 MP (HDR, Slow-motion videos) Video capture: 1080p

Connectivity & Features

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

Multimedia

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

Cellular

4G (FDD)
Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 20, 25, 26, 28, 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)
4G (TDD)
Bands 38, 39, 40, 41	Bands 38, 40
3G
Bands 1, 2, 4, 5, 8	Bands 5, 8, 4, 2, 1
Data Speed
LTE-A Cat 11 (600/75 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s	LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes	Yes
SIM type
Nano SIM, eSIM	Nano SIM
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

Buyers information

MSRP
$ 349	$ 249
In The Box
18W USB-C power adapter, 1 m USB-C to USB-C cable (USB 2.0), Quick Start Guide, Quick Switch Adapter, SIM tool	22.5W Wire charger, Simple protective cover, USB Type-C cable, SIM eject tool, User guide, Warranty card

Availability

Officially announced
Aug 03, 2020	Mar 23, 2020

Alternative variants

with 128GB storage


Memory	6GB/128GB
MSRP	$ 279

Links

Full specifications
Google Pixel 4a Specs	Xiaomi Redmi Note 9S Specs
PhoneArena Review
Google Pixel 4a Review
User Reviews
Google Pixel 4a User Reviews