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Samsung Galaxy S8 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.

Comparison mode:
Specs Size
Differences only
9.0
Samsung Galaxy S8
Xiaomi Redmi Note 9S
Samsung Galaxy S8 Xiaomi Redmi Note 9S
Released · Apr 21, 2017
Released · Apr 07, 2020
5.8-inch · 2960x1440px
6.7-inch · 2400x1080px
Single camera
Quad camera
4GB · 64GB
4GB · 64GB
3000 mAh
5020 mAh

Availability

Officially announced
Mar 29, 2017 Mar 23, 2020
Prices (MSRP)
$249

Design

Dimensions
5.86 x 2.68 x 0.31 inches
148.9 x 68.1 x 8.0 mm 		6.53 x 3.02 x 0.35 inches
165.75 x 76.68 x 8.8 mm
Weight
5.47 oz / 155.0 g 7.37 oz / 209.0 g
Materials
Back: Glass (Corning Gorilla Glass 5)
Frame: Aluminum 		Back: Glass (Corning Gorilla Glass 5)
Resistance
Water, Dust; IP68
Biometrics
Iris scanner, 2D Face unlock, Fingerprint (touch) Fingerprint (touch)
Keys
Left: Volume control, Other; Right: Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Midnight black, Orchid gray, Arctic silver, Coral blue, Maple gold, Rose pink, Burgundy red Interstellar grey, Aurora blue, Glacier white

Display

Size
5.8-inch, 84.26% screen-to-body 6.7-inch, 84.42% screen-to-body
Type
Super AMOLED, HDR IPS LCD, HDR
Resolution
2960x1440px, 18.5:9 ratio, 570 PPI 2400x1080px, 20:9 ratio, 395 PPI
Protection
Corning Gorilla Glass 5 Corning Gorilla Glass 5
PhoneArena Display Test
Bright Max (20% APL)
Untested Untested
Bright Min
1 (Excellent) Untested
Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 835 MSM8998 (10 nm) Snapdragon 720G SM7125 (8 nm)
Processor
Octa-core
2350 MHz
Kryo 280 		Octa-core
2300 MHz
Kryo 465
GPU
Adreno 540 Adreno 618
Memory
4GB (LPDDR4)/64GB 4GB (LPDDR4)/64GB
6GB/128GB
Storage expansion
microSDXC up to 256 GB microSDXC up to 512 GB
OS
Android (9.0 Pie, 8.0 Oreo, 7.0 Nougat) Android (11, 10)

Battery

Type
3000 mAh, Li - Ion 5020 mAh, Li - Polymer
Charging
Qualcomm Quick Charge 2.0
Qi and Powermat wireless charging 		Fast charging

Camera

Rear
Single camera Quad camera
Main camera
12 MP (OIS, PDAF)
Aperture size: F1.7
Focal length: 26 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), QHD, 1080p (60 fps), 720p (240 fps)
HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, Video light, EIS, Video calling, Video sharing 		4K UHD (30 fps), 1080p (120 fps), 720p (960 fps)
Front
8 MP (Wide Angle, Autofocus, HDR)
Video capture: QHD 		16 MP (HDR, Slow-motion videos)
Video capture: 1080p

Connectivity & Features

Bluetooth
5.0, Yes 5.0
WLAN
a,b,g,n,ac,dual-band
MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac 		a,b,g,n,ac,dual-band
Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac
USB
Type-C, USB 3.1 Type-C
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T3
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC, ANT+, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync Infrared

Multimedia

Headphones
3.5mm jack 3.5mm jack
Speakers
Earpiece, Loudspeaker Earpiece, Loudspeaker
Features
32-Bit DAC, aptX-HD
Screen mirroring
DLNA,Wireless screen share,MHL Wireless screen share
Additional microphone(s)
Noise cancellation, Video recording Noise cancellation

Cellular

4G (FDD) Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 66
4G (TDD) Bands
38, 39, 40, 41 38, 40
3G Bands
1, 2, 5, 8 5, 8, 4, 2, 1
Data Speed
LTE-A Pro Cat 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes
SIM type
Nano SIM Nano SIM
HD Voice
Yes
VoLTE
Yes

Regulatory Approval

FCC approval
Date approved: Apr 06, 2017
FCC ID value: A3LSMG950U
Measured SAR
Head: 0.49 W/kg
Body: 0.48 W/kg
Simultaneous Transmission: 1.53 W/kg
Wireless Router: 0.46 W/kg

Alternative variants

International version
System chip Samsung Exynos 9 Octa 8895 (10 nm)
Processor Octa-core
2300 MHz
Exynos M2 "Mongoose" and ARM Cortex-A53
GPU Mali-G71 MP20
4G (FDD) Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66
4G (TDD) Bands 38, 39, 40, 41
FCC approval Date approved: Sep 05, 2017
FCC ID value: A3LSMG950F
Measured SAR Head: 0.38 W/kg
Body: 0.75 W/kg
Simultaneous Transmission: 1.55 W/kg
Wireless Router: 1.09 W/kg
with 128GB storage
Memory 6GB/128GB
Prices (MSRP) $279
for T-Mobile
4G (FDD) Bands 2, 4, 5, 12
3G Bands 5, 4, 2, 1
VoLTE Yes
for Verizon Wireless
4G (FDD) Bands 2, 3, 4, 5, 7, 8, 13, 18, 19, 20, 26, 28
4G (TDD) Bands 38, 39, 40, 41
3G Bands 5, 8, 2, 1
for U.S. Cellular
4G (FDD) Bands 2, 4, 5, 8, 12, 13, 17, 18, 19, 25
4G (TDD) Bands 38, 39, 40
Data Speed LTE-A, HSPA, UMTS
with Dual SIM
System chip Samsung Exynos 9 Octa 8895 (10 nm)
Processor Octa-core
2500 MHz
Exynos M2 "Mongoose"and ARM Cortex-A53
GPU Mali-G71 MP20
Dual SIM Yes
FCC OKs Cingular\'s purchase of AT&T Wireless