Xiaomi Mi 9 vs Xiaomi Redmi 8: Comparison

Comparison of features, performance, design, battery, camera and connectivity between the following smartphones: Xiaomi Mi 9 vs Xiaomi Redmi 8. The complete information of specifications to decide which to buy.

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Technical data sheets

Basics

Xiaomi Mi 9
Xiaomi Mi 9
Global · 6GB · 64GB
View datasheet
vs
Xiaomi Redmi 8
Xiaomi Redmi 8
Global · 3GB · 32GB
View datasheet
vs

Score

Ki Cost-effective
Score
7.9 Ki Cost-effective
Score
6.8 Ki Cost-effective
Score
Design and Screen score 7.2Design & Materials 5.4Design & Materials
Performance and Hardware score 7.0Performance & Hardware 4.9Performance & Hardware
Camera score 7.0Camera 6.3Camera
Connectivity score 7.1 Connectivity 5.7 Connectivity
Battery score 4.8 Battery 6.8 Battery

User reviews

User score
9.2
289 reviews
8.2
58 reviews

Technical specifications of the Xiaomi Mi 9 vs Xiaomi Redmi 8

Specs stores to buy Xiaomi Mi 9 Xiaomi Mi 9
Global · 6GB · 64GB
Xiaomi Redmi 8 price comparison Xiaomi Redmi 8
Global · 3GB · 32GB
Inches 6.4" 6.22"
Resolution FHD+ HD+
Usable surface 86% useful 81% useful
Aspect Ratio 19.5:9 19:9
Dimensions 74.7 mm
157.5 mm
7.6 mm
75.4 mm
156.5 mm
9.4 mm
Weight 173 g 188 g
Micro SnapD. 855
Octa-Core
SnapD. 439
Octa-Core
RAM 6 GB RAM 3 GB RAM
Storage 64 GB 32 GB
AnTuTu 572.657
v10
118.350
v9
Battery 3300 mAh 5000 mAh
Main Camera 1
48 Mpx · ƒ/1.75
IMX586 Exmor RS
2 3
1
12 Mpx · ƒ/1.8
IMX363 Exmor RS
2
Selfie Camera SELF 24.8 Mpx · ƒ/2.0 SELF 8 Mpx · ƒ/2.0
Bands
OS Android 11 Red Velvet Cake Android 10 Q

Brand

Brand Xiaomi Xiaomi
Aliases Xiaomi Mi9, M1902F1A, M1902F1T Redmi8, Red Rice 8, Red Rice8, M1908C3IG

Release Date

Release date February 2019,
5 years ago
October 2019,
4 years ago
State On Sale On Sale
Market Global Global

Design & Materials

Structure

Xiaomi Mi 9
Xiaomi Redmi 8
Xiaomi Mi 9
Xiaomi Redmi 8
Size
74.7 mm 157.5 mm 7.6 mm
Print 3D Model
75.4 mm 156.5 mm 9.4 mm
Print 3D Model
Weight 173 g 188 g
Usable surface 86 % 81 %
Materials Ceramics Plastic, P2i Nano coating
Resistance - -
Colors
Black

Blue

Violet
Black

Blue

Red

Green

Screen

Diagonal 6.4" 6.22"
Type AMOLED LCD IPS
Aspect Ratio 19.5:9 19:9
Resolution FHD+
1080 x 2340 px
HD+
720 x 1520 px
Density 403 Pixels per inch 271 Pixels per inch

Others

Others
  • Water Drop Notch
  • Brightnes 600 cd/m² (typ)
  • 60000:1 contrast ratio
  • Always-On Display
  • HDR10
  • 103% NTSC
  • LED Notifications
  • Scratch resistant
  • 2.5D curved glass screen
  • Corning Gorilla Glass 6
  • Capacitive
  • Multi-touch
  • Frameless
  • Water Drop Notch
  • 1500:1 contrast ratio
  • 70% NTSC
  • Scratch resistant
  • 2.5D curved glass screen
  • Corning Gorilla Glass 5
  • Capacitive
  • Multi-touch

User reviews

Is it a drop-resistant and scratch-resistant smartphone?
8.2
7.7
Do you think it's a nice phone?
9.5
7.8
Is it comfortable?
9.2
8.3
Can you see it well in the sunlight?
9.1
7.2
Number of reviews
289 reviews
58 reviews

Performance & Hardware

Processor

Model Qualcomm Snapdragon 855 Qualcomm Snapdragon 439
CPU 1x Kryo 485 2.84 GHz + 3x Kryo 485 2.4 GHz + 4x Kryo 485 1.8 GHz 4x Cortex-A53 1.95 GHz + 4x Cortex-A53 1.45 GHz
Type Octa-Core Octa-Core
Manufacturing 7 nm 12 nm
64 Bits Yes Yes

Graphics

GPU Qualcomm Adreno 640 600MHz Qualcomm Adreno 505

RAM

RAM 6 GB 3 GB
Type LPDDR4X RAM LPDDR3 RAM

Storage

Capacity 64 GB 32 GB
Type UFS Storage 2.1 eMMC 5.1 Storage
SD Slot No Yes ,
Independent SD slot

Security

Fingerprint Yes, in screen Yes, in the back

Sensors

Sensors
  • Fingerprint
  • Light sensor
  • Accelerometer
  • Compass
  • Gyroscope
  • Hall
  • Ultrasonic proximity virtual
  • Fingerprint
  • Light sensor
  • Accelerometer
  • Compass
  • Ultrasonic proximity virtual

Audio

Audio
-
-

Others

Notifications LED LED Notifications --
Cooling system Yes No
Gaming buttons No No

User reviews

Does it have good sound?
8.4
8.4
Does it work smoothly in everyday use?
9.5
8.0
What's your experience been with demanding games?
9.5
6.9
Number of reviews
289 reviews
58 reviews

Camera

Main

No. of cameras Triple rear camera Double rear camera
1
Camera type

Standard

Standard
Resolution 48 Mpx 12 Mpx
Sensor Sony IMX586 Exmor RS Sony IMX363 Exmor RS
Type CMOS CMOS BSI
Aperture ƒ/ 1.75 ƒ/ 1.8
ISO 100 - 3200 --
Pixel size 0.80 µm 1.40 µm
Pixel Binning 1-4 (2x2) --
Sensor size 1/2" 1/2.55"
2
Camera type

Telephoto lens

Portrait mode (depth)
Resolution
13 Mpx
2 Mpx
Sensor
Samsung S5K3M5
Unknown
Type
ISOCELL
--
Aperture
ƒ/ 2.2
ƒ/ --
Pixel size
1.00 µm
--
Pixel Binning
--
--
Sensor size
1/3.4"
--
3
Camera type

Wide Angle lens
--
Resolution
16 Mpx
Sensor
Sony IMX481
Type
CMOS BSI
Aperture
ƒ/ 2.2
Pixel size
1.00 µm
Pixel Binning
--
Sensor size
1/3.09"

Features

Flash Dual LED LED
Optical Stabilisation No No
Slow Motion Video Yes,
960 fps
Yes,
60 fps
Others
  • 4K Video
  • Digital zoom
  • Triple camera
  • Digital image stabilization
  • Autofocus
  • Touch focus
  • Manual focus
  • Laser AF
  • Continuous shooting
  • Geotagging
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer
  • RAW
  • Digital zoom
  • Dual camera
  • Digital image stabilization
  • Autofocus
  • Touch focus
  • Continuous shooting
  • Geotagging
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer
  • RAW

Selfie

SELF
Camera type

Dedicated

Dedicated
Resolution 24.8 Mpx 8 Mpx
Sensor Sony IMX576 Exmor RS Unknown
Type CMOS BSI --
Aperture ƒ/ 2.0 ƒ/ 2.0
Pixel size 0.90 µm 1.12 µm
Pixel Binning 1-4 (2x2) --
Sensor size 1/2.78" --
Others
--
--

DxOMark Score

DxOMark Score
110
Mobile
115
Photo
99
Video
--

User reviews

Quality of daytime photos
9.4
8.1
Quality of nighttime photos
8.2
6.2
Quality of selfies
8.8
7.4
Does it have a powerful flash?
8.7
7.8
Number of reviews
289 reviews
58 reviews
Kimovil Photo Lab

Xiaomi Redmi 8 camera: Comparison of real photos

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)
  • B20 (800)
  • B28b (700)
  • B28a (700)
  • B38 (TDD 2600)
  • B39 (TDD 1900)
  • B40 (TDD 2300)
  • B1 (2100)
  • B2 (1900)
  • B3 (1800)
  • B4 (1700/2100 AWS 1)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B20 (800)
  • B38 (TDD 2600)
  • B40 (TDD 2300)
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
  • CDMA2000 1X
  • CDMA BC0 (800)
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)

SIM card

Dual SIM Dual Sim Dual Standby Dual Sim Dual Standby
Type
  • Nano SIM
  • Nano SIM
  • Nano SIM
  • Nano SIM

Wi-Fi

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

Bluetooth

Version Bluetooth 5.0 LE Low energy consumption Bluetooth 4.2 LE Low energy consumption
Others
  • A2DP (Advanced Audio Distribution Profile)
  • LE (Low Energy)
  • APT-x
  • A2DP (Advanced Audio Distribution Profile)
  • LE (Low Energy)

Navigation

Navigation
  • GPS
  • A-GPS
  • GLONASS
  • Beidou
  • Galileo
  • GPS (L1+L5)
  • GLONASS (L1)
  • BeiDou (B1)
  • Galileo (E1+E5a)
  • GPS
  • A-GPS
  • GLONASS
  • Beidou

USB

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

SAR

European measurement

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

1.389 W/Kg on head
1.301 W/Kg on body
--
American measurement

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

0.990 W/Kg on head
1.040 W/Kg on body
--

Others

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

User reviews

Does it have good coverage for calls?
9.3
8.3
Quality of the GPS
9.3
7.8
And the WiFi?
9.4
8.3
Number of reviews
289 reviews
58 reviews

Battery

Battery

Capacity
3300 mAh
5000 mAh
Type Li-Polymer Li-Polymer
Fast charge Yes,
27.0W
Yes,
18.0W
Others
  • Wireless charging
  • Non-removable
  • Non-removable

User reviews

How long does the battery last?
  • 5%
    Less than half day
  • 25%
    Less than a day
  • 42%
    One day
  • 25%
    More than one day
  • 3%
    Two days or more
  • 0%
    Less than half day
  • 5%
    Less than a day
  • 26%
    One day
  • 43%
    More than one day
  • 26%
    Two days or more
Number of reviews
289 reviews
58 reviews

Software

Software

Operating System
  • MIUI V12 (Android 11)
    Android 11 Red Velvet Cake, 3 years ago
  • MIUI V12 (Android 10)
    Android 10 Q, 4 years ago
Google Services (official) Yes Yes

User reviews

Did it come with preinstalled applications?
  • 7%
    It comes with a clean operating system
  • 79%
    It has preinstalled apps but they don't bother me
  • 14%
    It has preinstalled apps that I can't uninstall
  • 4%
    It comes with a clean operating system
  • 84%
    It has preinstalled apps but they don't bother me
  • 12%
    It has preinstalled apps that I can't uninstall
Do you regularly receive updates?
  • 3%
    Never
  • 3%
    Once a year
  • 39%
    Every six months
  • 56%
    Every two months or less
  • 4%
    Never
  • 13%
    Once a year
  • 44%
    Every six months
  • 38%
    Every two months or less
Number of reviews
289 reviews
58 reviews