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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.

Comparison mode:
Specs Size
Differences only
Xiaomi Redmi Note 9S
9.0
Asus ZenFone 8
Xiaomi Redmi Note 9S Asus ZenFone 8
Released · Apr 07, 2020
Released · May 13, 2021
6.7-inch · 2400x1080px
5.9-inch · 2400x1080px
Quad camera
Dual camera
4GB · 64GB
6GB · 128GB
5020 mAh
4000 mAh
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Availability

Officially announced
Mar 23, 2020 May 12, 2021
Prices (MSRP)
4GB/64GB - $249 €599

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

Display

Size
6.7-inch, 84.42% screen-to-body 5.9-inch, 82.76% screen-to-body
Type
IPS LCD, HDR AMOLED, 120Hz, HDR, 1100 nits
Resolution
2400x1080px, 20:9 ratio, 395 PPI 2400x1080px, 20:9 ratio, 446 PPI
Protection
Corning Gorilla Glass 5 Corning Gorilla Glass Victus
PhoneArena Display Test
Bright Max (20% APL)
Untested Untested
Bright Min
Untested 2.3 (Average)
Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 720G SM7125 (8 nm) Snapdragon 888 SM8350 (5 nm)
Processor
Octa-core
Kryo 465 		Octa-core
2840 MHz
Kryo 680
GPU
Adreno 618 Adreno 660
Memory
4GB (LPDDR4)/64GB
6GB/128GB 		6GB (LPDDR5)/128GB (UFS 3.1)
8GB/128GB
8GB/256GB
16GB/256GB
Storage expansion
microSDXC up to 512 GB not expandable
OS
Android (11, 10) Android (11)

Battery

Type
5020 mAh, Li - Polymer 4000 mAh
Charging
Fast charging Qualcomm Quick Charge 4
Charge speed
Wired: 30.0W
PhoneArena Battery Tests
Battery Life Estimate
Untested
Browsing
Untested
Video
Untested
Gaming
Untested
Battery Life Estimate
6h 11min
Browsing
10h 12min
Video
11h 23min
Gaming
8h 42min
Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Quad camera Dual camera
Main camera
48 MP (PDAF)
Aperture size: F1.8
Sensor size: 1/2"
Pixel size: 0.8 μm 		64 MP (OIS, PDAF)
Aperture size: F1.8
Focal length: 27 mm
Sensor size: 1/1.7"
Pixel size: 1.6 μm
Second camera
8 MP (Ultra-wide)
Aperture size: F2.2
Pixel size: 1.12 μm 		12 MP (Ultra-wide, PDAF)
Aperture size: F2.2
Focal Length: 14 mm
Sensor size: 1/2.55"
Pixel size: 1.4 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
Dual LED LED
Video recording
4K UHD (30 fps), 1080p (120 fps), 720p (960 fps) 8K UHD (24 fps), 4K UHD (120 fps), 1080p (240 fps), 720p (480 fps)
Time-lapse video, Picture-taking during video recording, EIS
Front
16 MP (HDR, Slow-motion videos)
Video capture: 1080p 		12 MP (PDAF)
Video capture: 4K UHD (30 fps)

Connectivity & Features

Bluetooth
5.0 5.2, Yes
WLAN
a,b,g,n,ac,dual-band
Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac 		a,b,g,n,ac,Wi-Fi 6,tri-band
MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, ax
USB
Type-C Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, QZSS, NavIC, Cell ID, Wi-Fi positioning
Other
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
Radio
FM, Stereo, RDS
Additional microphone(s)
Noise cancellation

Cellular

5G Bands
n1, n2, n3, n5, n7, n8, n12, n20, n25, n38, n40, n66, n71, n77, n78, SA, NSA
LTE Bands
1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 30, 66, 71
TDD Bands
38, 40 34, 38, 39, 40, 41, 42
3G Bands
1, 2, 4, 5, 8 1, 2, 3, 4, 5, 6, 8, 19
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

Alternative variants

with 128GB storage
Memory 6GB/128GB
Prices (MSRP) $279
With 8GB RAM
Memory 8GB
With 8GB RAM and 256GB internal storage
Memory 8GB/256GB
With 16GB RAM and 256GB internal storage
Memory 16GB/256GB
Global
5G Bands n1, n2, n3, n5, n7, n8, n12, n20, n28, n38, n77, n78, SA, NSA
LTE Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28
TDD Bands 34, 38, 39, 40, 41, 42
3G Bands 1, 2, 3, 4, 5, 6, 8, 19
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