Xiaomi Redmi 8 vs Redmi K20: Comparison

Comparison of features, performance, design, battery, camera and connectivity between the following smartphones: Xiaomi Redmi 8 vs Redmi K20. The complete information of specifications to decide which to buy.

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Technical data sheets

Basics

Xiaomi Redmi 8
Xiaomi Redmi 8
Global · 3GB · 32GB
View datasheet
vs
Redmi K20
Redmi K20
China · 6GB · 64GB
View datasheet
vs

Score

Ki Cost-effective
Score
6.8 Ki Cost-effective
Score
-- No price,
no Ki
Design and Screen score 5.4Design & Materials 7.1Design & Materials
Performance and Hardware score 4.9Performance & Hardware 5.7Performance & Hardware
Camera score 6.3Camera 7.1Camera
Connectivity score 5.7 Connectivity 5.0 Connectivity
Battery score 6.8 Battery 5.3 Battery

User reviews

User score
8.2
58 reviews
9.2
13 reviews

Technical specifications of the Xiaomi Redmi 8 vs Redmi K20

Specs Xiaomi Redmi 8 price comparison Xiaomi Redmi 8
Global · 3GB · 32GB
Redmi K20 price comparison Redmi K20
China · 6GB · 64GB
Inches 6.22" 6.39"
Resolution HD+ FHD+
Usable surface 81% useful 86% useful
Aspect Ratio 19:9 19.5:9
Dimensions 75.4 mm
156.5 mm
9.4 mm
74.3 mm
156.7 mm
8.8 mm
Weight 188 g 191 g
Micro SnapD. 439
Octa-Core
SnapD. 730
Octa-Core
RAM 3 GB RAM 6 GB RAM
Storage 32 GB 64 GB
AnTuTu 118.350
v9
261.545
v8
Battery 5000 mAh 4000 mAh
Main Camera 1
12 Mpx · ƒ/1.8
IMX363 Exmor RS
2
1
48 Mpx · ƒ/1.75
IMX582 Exmor RS
2 3
Selfie Camera SELF 8 Mpx · ƒ/2.0 SELF 20 Mpx · ƒ/2.2
Bands
OS Android 10 Q Android 9.0 P

Brand

Brand Xiaomi Xiaomi
Aliases Redmi8, Red Rice 8, Red Rice8, M1908C3IG Redmi K20, Xiaomi Mi 9T, M1903F10A, M1903F10C, M1903F10T

Release Date

Release date October 2019,
4 years ago
May 2019,
4 years ago
State On Sale Not available
Market Global China

Design & Materials

Structure

Xiaomi Redmi 8
Redmi K20
Xiaomi Redmi 8
Redmi K20
Size
75.4 mm 156.5 mm 9.4 mm
Print 3D Model
74.3 mm 156.7 mm 8.8 mm
Print 3D Model
Weight 188 g 191 g
Usable surface 81 % 86 %
Materials Plastic, P2i Nano coating Glass, Metal
Resistance - -
Colors
Black

Blue

Red

Green
Black

Blue

Red

Screen

Diagonal 6.22" 6.39"
Type LCD IPS AMOLED Samsung
Aspect Ratio 19:9 19.5:9
Resolution HD+
720 x 1520 px
FHD+
1080 x 2340 px
Density 271 Pixels per inch 403 Pixels per inch

Others

Others
  • Water Drop Notch
  • 1500:1 contrast ratio
  • 70% NTSC
  • Scratch resistant
  • 2.5D curved glass screen
  • Corning Gorilla Glass 5
  • Capacitive
  • Multi-touch
  • Without Notch
  • Brightnes 600 cd/m² (typ)
  • 60000:1 contrast ratio
  • Always-On Display
  • HDR
  • 103% NTSC
  • LED Notifications
  • Scratch resistant
  • 2.5D curved glass screen
  • Corning Gorilla Glass 5
  • Capacitive
  • Multi-touch
  • Frameless

User reviews

Is it a drop-resistant and scratch-resistant smartphone?
7.7
6.7
Do you think it's a nice phone?
7.8
9.7
Is it comfortable?
8.3
9.0
Can you see it well in the sunlight?
7.2
8.9
Number of reviews
58 reviews
13 reviews

Performance & Hardware

Processor

Model Qualcomm Snapdragon 439 Qualcomm Snapdragon 730
CPU 4x Cortex-A53 1.95 GHz + 4x Cortex-A53 1.45 GHz 2x Kryo 470 2.2 GHz + 6x Kryo 470 1.8 GHz
Type Octa-Core Octa-Core
Manufacturing 12 nm 8 nm
64 Bits Yes Yes

Graphics

GPU Qualcomm Adreno 505 QUalcomm Adreno 618

RAM

RAM 3 GB 6 GB
Type LPDDR3 RAM LPDDR4X RAM

Storage

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

Security

Fingerprint Yes, in the back Yes, in screen

Sensors

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

Audio

Audio
-
  • Hi-Res Audio
  • Stereo Speakers

Others

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

User reviews

Does it have good sound?
8.4
9.2
Does it work smoothly in everyday use?
8.0
9.0
What's your experience been with demanding games?
6.9
9.0
Number of reviews
58 reviews
13 reviews

Camera

Main

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

Standard

Standard
Resolution 12 Mpx 48 Mpx
Sensor Sony IMX363 Exmor RS Sony IMX582 Exmor RS
Type CMOS BSI CMOS
Aperture ƒ/ 1.8 ƒ/ 1.75
ISO -- 100 - 3200
Pixel size 1.40 µm 0.80 µm
Pixel Binning -- 1-4 (2x2)
Sensor size 1/2.55" 1/2"
2
Camera type

Portrait mode (depth)

Telephoto lens
Resolution
2 Mpx
8 Mpx
Sensor
Unknown
Omnivision OV8865
Type
--
CMOS BSI 2
Aperture
ƒ/ --
ƒ/ 2.4
Pixel size
--
1.40 µm
Pixel Binning
--
--
Sensor size
--
1/3.2"
3
Camera type
--

Wide Angle lens
Resolution
13 Mpx
Sensor
Samsung S5K3L6
Type
ISOCELL
Aperture
ƒ/ 2.4
Pixel size
1.12 µm
Pixel Binning
--
Sensor size
1/3.1"

Features

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

Selfie

SELF
Camera type

Dedicated

Dedicated
Resolution 8 Mpx 20 Mpx
Sensor Unknown Unknown
Type -- --
Aperture ƒ/ 2.0 ƒ/ 2.2
Pixel size 1.12 µm 0.80 µm
Pixel Binning -- --
Sensor size -- --
Others
--
--

DxOMark Score

DxOMark Score -- --

User reviews

Quality of daytime photos
8.1
9.7
Quality of nighttime photos
6.2
8.0
Quality of selfies
7.4
8.2
Does it have a powerful flash?
7.8
7.9
Number of reviews
58 reviews
13 reviews

Connectivity

Network compatibility

5G -- --
4G LTE
  • 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)
  • B1 (2100)
  • B3 (1800)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B34 (TDD 2100)
  • B38 (TDD 2600)
  • B39 (TDD 1900)
  • B40 (TDD 2300)
  • B41 (TDD 2500)
3G
  • B1 (2100)
  • B2 (1900)
  • B4 (1700/2100 AWS A-F)
  • B5 (850)
  • B8 (900)
  • B1 (2100)
  • B2 (1900)
  • B5 (850)
  • B8 (900)
  • B34 (TD 2000)
  • B39 (TD 1900+)
2G
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)
  • CDMA BC0 (800)
  • 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
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
  • 802.11ac
Others
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Display
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Display

Bluetooth

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

Navigation

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

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.

-- --
American measurement

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

-- --

Others

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

User reviews

Does it have good coverage for calls?
8.3
8.7
Quality of the GPS
7.8
8.6
And the WiFi?
8.3
9.1
Number of reviews
58 reviews
13 reviews

Battery

Battery

Capacity
5000 mAh
4000 mAh
Type Li-Polymer Li-Polymer
Fast charge Yes,
18.0W
Yes,
18.0W
Others
  • Non-removable
  • Non-removable

User reviews

How long does the battery last?
  • 0%
    Less than half day
  • 5%
    Less than a day
  • 26%
    One day
  • 43%
    More than one day
  • 26%
    Two days or more
  • 0%
    Less than half day
  • 0%
    Less than a day
  • 31%
    One day
  • 62%
    More than one day
  • 8%
    Two days or more
Number of reviews
58 reviews
13 reviews

Software

Software

Operating System
  • MIUI V12 (Android 10)
    Android 10 Q, 4 years ago
  • MIUI (Android 9.0 Pie)
    Android 9.0 P, 5 years ago
Google Services (official) Yes No

User reviews

Did it come with preinstalled applications?
  • 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
  • 8%
    It comes with a clean operating system
  • 58%
    It has preinstalled apps but they don't bother me
  • 33%
    It has preinstalled apps that I can't uninstall
Do you regularly receive updates?
  • 4%
    Never
  • 13%
    Once a year
  • 44%
    Every six months
  • 38%
    Every two months or less
  • 8%
    Never
  • 0%
    Once a year
  • 31%
    Every six months
  • 62%
    Every two months or less
Number of reviews
58 reviews
13 reviews