Xiaomi Redmi Note 9S vs Asus ZenFone 8 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.

	9.0
Xiaomi Redmi Note 9S	Asus ZenFone 8
Released · Apr 07, 2020	Released · May 13, 2021
6.7-inch · 2400 x 1080 px	5.9-inch · 2400 x 1080 px
48 MP Main · 16 MP Selfie	64 MP Main · 12 MP Selfie
4GB · 64GB	6GB · 128GB
5020 mAh	4000 mAh

Display

Size
6.7-inch	5.9-inch
Resolution
2400 x 1080 px, 20:9 ratio, 395 PPI	2400 x 1080 px, 20:9 ratio, 446 PPI
Technology
IPS LCD	AMOLED
Refresh rate
	120Hz
Screen-to-body
84.42 %	82.76 %
Peak brightness
	1100 cd/m2 (nit)
Features
HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor	HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 720G SM7125 (8 nm)	Qualcomm Snapdragon 888 SM8350 (5 nm)
Processor
Octa-core, 2300 MHz, Kryo 465, 64-bit	Octa-core, 2840 MHz, Kryo 680, 64-bit
GPU
Adreno 618	Adreno 660
RAM
4GB (LPDDR4)	6GB (LPDDR5)
Internal storage
64GB	128GB (UFS 3.1), not expandable
Storage expansion
microSDXC up to 512 GB
OS
Android (11, 10)	Android (11), Zen 8 UI
Device type
Smartphone	Smartphone

Battery

Capacity
5020 mAh	4000 mAh
Type
Li - Polymer, Not user replaceable
Charging
Fast charging	Qualcomm Quick Charge 4
Max charge speed
	Wired: 30.0W

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

6h 11min

Browsing

10h 12min

Video

11h 23min

Gaming

8h 42min

Camera

Rear
Quad camera	Dual camera
Main camera
48 MP (PDAF) Specifications: Aperture size: F1.8 Sensor size: 1/2" Pixel size: 0.8 μm	64 MP (OIS, PDAF) Specifications: Aperture size: F1.8 Focal length: 27 mm Sensor size: 1/1.7" Pixel size: 1.6 μm
Second camera
8 MP (Ultra-wide) Specifications: Aperture size: F2.2 Pixel size: 1.12 μm	12 MP (Ultra-wide, PDAF) Specifications: Aperture size: F2.2 Focal Length: 14 mm Sensor size: 1/2.55" Pixel size: 1.4 μm
Third camera
5 MP (Macro, Autofocus) Specifications: Aperture size: F2.4 Pixel size: 1.12 μm
Fourth camera
2 MP (Depth information) Specifications: Aperture size: F2.4 Pixel size: 1.75 μm
Flash
Dual LED	LED
Video recording
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (960 fps)	7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (120 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (480 fps) Features: Time-lapse video, Picture-taking during video recording, EIS
Front
16 MP (HDR, Slow-motion videos), Video capture: 1920x1080 (Full HD)	12 MP (PDAF), Video capture: 3840x2160 (4K UHD) (30 fps)

Design

Dimensions
6.53 x 3.02 x 0.35 inches (165.75 x 76.68 x 8.8 mm)	5.83 x 2.70 x 0.35 inches (148 x 68.6 x 8.9 mm)
Weight
7.37 oz(209.0 g)	5.96 oz(169.0 g)
Materials
Back: Glass (Corning Gorilla Glass 5)	Back: Glass (Corning Gorilla Glass 3) Frame: Aluminum
Resistance
	Water, Dust; IP68
Biometrics
Fingerprint (touch)	Optical in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Interstellar grey, Aurora blue, Glacier white	Obsidian Black, Horizon Silver

Cellular

5G
	Bands n1, n2, n3, n5, n7, n8, n12, n20, n25, n38, n40, n66, n71, n77, n78, SA, NSA
4G (FDD)
	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 30(2300 WCS), 66(AWS-3), 71(600)
4G (TDD)
Bands 38(2600), 40(2300)	Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+), 42(3500)
3G
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)	Bands 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 6(800), 8(900), 19(800)
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s	LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s
Dual SIM
Yes	Yes
SIM type
Nano SIM	Nano SIM
VoLTE
Yes

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
Radio
	FM, Stereo, RDS
Additional microphone(s)
Noise cancellation	Noise cancellation

Connectivity & Features

Bluetooth
5.0	5.2, Yes
Wi-Fi
802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot	802.11 a,b,g,n,ac,ax(Wi-Fi 6),tri-band MIMO, Wi-Fi Direct, Hotspot
USB
Type-C (reversible), Features: Charging	Type-C (reversible), USB 2.0, Features: Charging, OTG
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, QZSS, NavIC, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass	Accelerometer, Gyroscope, Compass
Other
Infrared	NFC

Buyers information

MSRP
$ 249	€ 599
In The Box
22.5W Wire charger, Simple protective cover, USB Type-C cable, SIM eject tool, User guide, Warranty card

Availability

Officially announced
Mar 23, 2020	May 12, 2021

Alternative variants

with 128GB storage


RAM	6GB
Internal storage	128GB
MSRP	$ 279

With 8GB RAM


RAM	8GB

With 8GB RAM and 256GB internal storage


RAM	8GB
Internal storage	256GB

With 16GB RAM and 256GB internal storage


RAM	16GB
Internal storage	256GB

Global


5G	Bands n1, n2, n3, n5, n7, n8, n12, n20, n28, n38, n77, n78, SA, NSA
4G (FDD)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 26(850+), 28(700 APT)
4G (TDD)	Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+), 42(3500)
3G	Bands 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 6(800), 8(900), 19(800)

Links

Full specifications
Xiaomi Redmi Note 9S Specs	Asus ZenFone 8 Specs
PhoneArena Review
	Asus ZenFone 8 Review
User Reviews
	Asus ZenFone 8 User Reviews