Samsung Galaxy S8 vs Xiaomi Redmi 9: Comparison

Comparison of features, performance, design, battery, camera and connectivity between the following smartphones: Samsung Galaxy S8 vs Xiaomi Redmi 9. The complete information of specifications to decide which to buy.

Compare
Samsung Galaxy S8Samsung Galaxy S8Global · 4GB · 64GB · G950F
Xiaomi Redmi 9Xiaomi Redmi 9Global · 3GB · 32GB · NFC
Technical data sheets

Basics
Samsung Galaxy S8
Samsung Galaxy S8
Global · 4GB · 64GB · G950F
View datasheet
vs
Xiaomi Redmi 9
Xiaomi Redmi 9
Global · 3GB · 32GB · NFC
View datasheet
vs

Score
Ki Cost-effective
Score		 7.4 Ki Cost-effective
Score 		6.9 Ki Cost-effective
Score
Design and Screen score 6.9Design & Materials 5.8Design & Materials
Performance and Hardware score 5.3Performance & Hardware 5.4Performance & Hardware
Camera score 6.5Camera 5.8Camera
Connectivity score 7.3 Connectivity 6.7 Connectivity
Battery score 4.8 Battery 6.9 Battery

User reviews
User score
8.5
194 reviews
8.0
205 reviews

Technical specifications of the Samsung Galaxy S8 vs Xiaomi Redmi 9

Specs Samsung Galaxy S8 prices Samsung Galaxy S8
Global · 4GB · 64GB · G950F 		Xiaomi Redmi 9 prices Xiaomi Redmi 9
Global · 3GB · 32GB · NFC
Inches 5.8" 6.53"
Resolution WQHD+ FHD+
Usable surface 84% useful 83% useful
Aspect Ratio 18:9 19.5:9
Dimensions 68.1 mm
148.9 mm
8.0 mm 		77.0 mm
163.3 mm
9.1 mm
Weight 155 g 198 g
Micro Exynos 8895
Octa-Core 		Helio G80
Octa-Core
RAM 4 GB RAM 3 GB RAM
Storage 64 GB 32 GB
AnTuTu 202.256
v7 		203.078
v8
Battery 3000 mAh 5020 mAh
Main Camera 1
12.2 Mpx · ƒ/1.7
S5K2L2
1
13 Mpx · ƒ/2.2
OV13B10
2 3 4
Selfie Camera SELF 8 Mpx · ƒ/1.7 SELF 8 Mpx · ƒ/2.0
Bands
OS Android 9.0 P Android 10 Q

Brand
Brand Samsung Xiaomi
Aliases -- M2004J19AG

Release Date
Release date March 2017,
7 years ago 		June 2020,
3 years ago
State On Sale On Sale
Market Global Global

Design & Materials

Structure

Samsung Galaxy S8
Xiaomi Redmi 9
Samsung Galaxy S8
Xiaomi Redmi 9
Size
68.1 mm • 148.9 mm • 8.0 mm
See more details
 Print 3D Model
77.0 mm • 163.3 mm • 9.1 mm
See more details
 Print 3D Model
Weight 155 g 198 g
Usable surface 84 % 83 %
Materials Aluminium alloy, Glass Plastic, Splash resistant design
Resistance IP68 -
Colors
Black

Silver

Gray
Black

Green

Cyan

Screen
Diagonal 5.8" 6.53"
Type Super AMOLED • HDR 10 LCD IPS
Aspect Ratio 18:9 19.5:9
Resolution WQHD+
1440 x 2960 px 		FHD+
1080 x 2340 px
Density 570 Pixels per inch 395 Pixels per inch

Others

Others
  • Without Notch
  • Brightnes 540 cd/m² (typ)
  • 100000:1 contrast ratio
  • Color LED Notifications
  • Scratch resistant
  • Corning Gorilla Glass 5
  • Capacitive
  • Multi-touch
  • Touch sensitive
  • Force Touch
  • Frameless
  • Water Drop Notch
  • Brightnes 400 cd/m² (typ)
  • 1500:1 contrast ratio
  • TÜV Rheinland Eye Comfort Certification
  • 70% NTSC
  • Scratch resistant
  • Corning Gorilla Glass 3
  • 2.5D curved glass screen
  • Capacitive
  • Multi-touch
  • Frameless

User reviews

Is it a drop-resistant and scratch-resistant smartphone?
6.4
8.1
Do you think it's a nice phone?
9.3
8.3
Is it comfortable?
9.1
8.2
Can you see it well in the sunlight?
8.8
6.0
Number of reviews
194 reviews
205 reviews

Performance & Hardware

Processor
Model Samsung Exynos 9 Octa 8895 MediaTek Helio G80 (MT6769T)
CPU 4x Exynos M2 2.3 GHz + 4x Cortex-A53 1.7 GHz 2x Cortex-A75 2.0 GHz + 6x Cortex-A55 1.8 GHz
Type Octa-Core Octa-Core
Manufacturing 10 nm 12 nm
64 Bits Yes Yes

Graphics
GPU ARM Mali-G71 MP20 ARM Mali-G52 2EEMC2

RAM
RAM 4 GB 3 GB
Type -- LPDDR4X RAM

Antutu
Score
202.256
Antutu v7
Overall performance better than 58% of devices
See more details
203.078
Antutu v8
Overall performance better than 58% of devices
See more details

Storage
Capacity 64 GB 32 GB
Type UFS Storage 2.1 eMMC 5.1 Storage
SD Slot Yes ,
Independent SD slot 		Yes ,
Independent SD slot

Security
Fingerprint Yes, in the back Yes, in the back

Sensors
Sensors
  • Fingerprint
  • Proximity
  • Light sensor
  • Accelerometer
  • Compass
  • Gyroscope
  • Gravity
  • Hall
  • Heart Rate
  • Iris scanner
  • Fingerprint
  • Light sensor
  • Accelerometer
  • Compass
  • Ultrasonic proximity virtual

Audio

Audio
-
  • Noise cancellation microphone

Others
Notifications LED Color LED Notifications --
Cooling system No No
Gaming buttons No No

User reviews

Does it have good sound?
8.3
7.8
Does it work smoothly in everyday use?
8.7
8.3
What's your experience been with demanding games?
8.5
7.5
Number of reviews
194 reviews
205 reviews

Camera

Main
No. of cameras Rear camera Quad rear camera
1
Camera type

Standard

Standard
Resolution 12.2 Mpx 13 Mpx
Sensor Samsung S5K2L2 Omnivision OV13B10
Type ISOCELL PureCel
Aperture ƒ/ 1.7 ƒ/ 2.2
ISO -- --
Pixel size 1.40 µm 1.12 µm
Pixel Binning -- --
Sensor size 1/2.6" 1/3.06"
2
Camera type
--

Wide Angle lens
Resolution
8 Mpx
Sensor
Samsung S5K4H7
Type
PureCel
Aperture
ƒ/ 2.2
Pixel size
1.12 µm
Pixel Binning
--
Sensor size
1/4"
3
Camera type
--

Portrait mode (depth)
Resolution
8 Mpx
Sensor
Samsung S5K4H7
Type
PureCel
Aperture
ƒ/ 2.4
Pixel size
1.12 µm
Pixel Binning
--
Sensor size
1/4"
4
Camera type
--

Macro lens
Resolution
5 Mpx
Sensor
Unknown
Type
--
Aperture
ƒ/ 2.4
Pixel size
--
Pixel Binning
--
Sensor size
--

Features
Flash Dual LED LED
Optical Stabilisation Yes No
Slow Motion Video Yes,
240 fps 		Yes,
120 fps
Others
  • 4K Video
  • Digital zoom
  • Optical Stabilization (OIS)
  • Autofocus
  • Touch focus
  • Continuous autofocus
  • Manual focus
  • Continuous shooting
  • Geotagging
  • Panorama
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Scene mode
  • Self-timer
  • RAW
  • Digital zoom
  • Quadruple camera
  • Digital image stabilization
  • Autofocus
  • Touch focus
  • Geotagging
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer

Selfie
SELF
Camera type

Dedicated

Dedicated
Resolution 8 Mpx 8 Mpx
Sensor Samsung S5K3H7 Unknown
Type CMOS --
Aperture ƒ/ 1.7 ƒ/ 2.0
Pixel size 1.22 µm --
Pixel Binning -- --
Sensor size 1/3.2" --
Others
--
--

DxOMark Score
DxOMark Score
88
Mobile
88
Photo
88
Video
 --

User reviews

Quality of daytime photos
9.1
7.7
Quality of nighttime photos
8.0
5.4
Quality of selfies
8.3
7.1
Does it have a powerful flash?
8.7
7.5
Number of reviews
194 reviews
205 reviews

Connectivity

Network compatibility

5G -- --
4G LTE
  • B1 (2100)
  • B2 (1900)
  • B3 (1800)
  • B4 (1700/2100 AWS 1)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B12 (700)
  • B13 (700)
  • B17 (700)
  • B18 (800)
  • B19 (800)
  • B20 (800)
  • B25 (1900+)
  • B26 (850)
  • B28b (700)
  • B28a (700)
  • B38 (TDD 2600)
  • B39 (TDD 1900)
  • B40 (TDD 2300)
  • B41 (TDD 2500)
  • B42 (TDD 3500)
  • B66 (1700/2100)
  • B1 (2100)
  • B2 (1900)
  • B3 (1800)
  • B4 (1700/2100 AWS 1)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B20 (800)
  • B28b (700)
  • B28a (700)
  • B38 (TDD 2600)
  • B40 (TDD 2300)
  • B41 (TDD 2500)
3G
  • B1 (2100)
  • B2 (1900)
  • B4 (1700/2100 AWS A-F)
  • B5 (850)
  • B8 (900)
  • B34 (TD 2000)
  • B39 (TD 1900+)
  • B1 (2100)
  • B2 (1900)
  • B4 (1700/2100 AWS A-F)
  • B5 (850)
  • B8 (900)
2G
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)

SIM card
Dual SIM Single Sim Dual Sim Dual Standby
Type
  • Nano SIM
  • Nano SIM
  • Nano SIM

Wi-Fi
Wi-Fi
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
  • 802.11ac
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
  • 802.11ac
Others
  • Wi-Fi Hotspot
  • Wi-Fi Display
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Display

Bluetooth
Version Bluetooth 5.0 LE Low energy consumption Bluetooth 5.0 LE Low energy consumption
Others
  • A2DP (Advanced Audio Distribution Profile)
  • AVRCP (Audio/Visual Remote Control Profile)
  • DIP (Device ID Profile)
  • HFP (Hands-Free Profile)
  • HID (Human Interface Profile)
  • HSP (Headset Profile)
  • LE (Low Energy)
  • MAP (Message Access Profile)
  • PAN (Personal Area Networking Profile)
  • OPP (Object Push Profile)
  • PBAP/PAB (Phone Book Access Profile)
  • APT-x
  • A2DP (Advanced Audio Distribution Profile)
  • EDR (Enhanced Data Rate)
  • HID (Human Interface Profile)
  • LE (Low Energy)

Navigation
Navigation
  • GPS
  • A-GPS
  • GLONASS
  • Beidou
  • Galileo
  • GPS
  • A-GPS
  • GLONASS
  • Beidou

USB
USB
  • Charging
  • USB On-The-Go (OTG)
  • USB Type C
  • USB Host 3.1
  • Charging
  • Mass Storage
  • USB Type C

SAR
European measurement

The European Union sets a limit of 2 W/kg averaged over 10 grams of tissue.

 0.315 W/Kg on head
1.270 W/Kg on body 		0.789 W/Kg on head
1.065 W/Kg on body
American measurement

The FCC limit is 1.6 W/kg measured in a volume of 1 gram of tissue

 0.370 W/Kg on head
0.750 W/Kg on body 		1.084 W/Kg on head
1.049 W/Kg on body

Others
Others
  • NFC
  • Audio Jack
  • Mirrorlink
  • NFC
  • Audio Jack
  • Radio FM
  • Computer sync
  • OTA sync
  • Infrared
  • Tethering.
  • VoLTE

User reviews

Does it have good coverage for calls?
9.0
8.6
Quality of the GPS
8.9
8.2
And the WiFi?
9.1
8.5
Number of reviews
194 reviews
205 reviews

Battery

Battery
Capacity
3000 mAh
See more details
5020 mAh
See more details
Type Li-Ion Li-Polymer
Fast charge Yes Yes,
18.0W
Others
  • Wireless charging
  • Non-removable
  • Non-removable

User reviews

How long does the battery last?
  • 8%
    Less than half day
  • 38%
    Less than a day
  • 38%
    One day
  • 13%
    More than one day
  • 2%
    Two days or more
  • 1%
    Less than half day
  • 4%
    Less than a day
  • 27%
    One day
  • 53%
    More than one day
  • 15%
    Two days or more
Number of reviews
194 reviews
205 reviews

Software

Software
Operating System
  • Android 9.0 Pie
    Android 9.0 P, 5 years ago
  • MIUI V11 (Android 10)
    Android 10 Q, 4 years ago
Google Services (official) Yes Yes

User reviews

Did it come with preinstalled applications?
  • 3%
    It comes with a clean operating system
  • 79%
    It has preinstalled apps but they don't bother me
  • 18%
    It has preinstalled apps that I can't uninstall
  • 7%
    It comes with a clean operating system
  • 77%
    It has preinstalled apps but they don't bother me
  • 15%
    It has preinstalled apps that I can't uninstall
Do you regularly receive updates?
  • 6%
    Never
  • 9%
    Once a year
  • 47%
    Every six months
  • 38%
    Every two months or less
  • 4%
    Never
  • 9%
    Once a year
  • 55%
    Every six months
  • 32%
    Every two months or less
Number of reviews
194 reviews
205 reviews
Prices
From $ 160 --
From $ 201 --

Others

Common comparisons