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Compare Samsung Galaxy A51 VS Xiaomi Redmi K30 4G


Xiaom Redmi K30 4G is equipped with Snapdragon 730G SoC, 6 GB + 64 GB or 6 GB + 128 GB or 8 GB + 128 GB or 8 GB + 256 GB, 6.67" Super AMOLED display with a 120 Hz screen refreshment, 4500 mAh battery with 27W fast charging, quad rear camera with 64 MP main sensor + 8 MP ultra-wide + 2 MP depth-sensing and 2 MP macro, 20 MP + 2 MP (depth-sensing) dual front camera, and 230 $ start price on launch.

While Samsung Galaxy A51 features with Exynos 7 Octa 9611 SoC, 4 GB + 64 GB or 6 GB + 128 GB or 8 GB + 128 GB, 6.5" Super AMOLED display, 4000 mAh battery with 15 W fast charging, 48/12/5/5 MP quad rear camera and 32 MP front camera.


Here’s an in-depth specifications comparison between Xiaomi Redmi K30 4G and Samsung Galaxy A51.

Jump to:
  1. Operating System  Comparison
  2. System  on  Chip (SOC)  Comparison
  3. RAM Comparison
  4. Storage  Comparison
  5. Display Comparison
  6. Launch Date Comparison
  7. Price  Comparison
  8. Sensors  Comparison
  9. Rear Camera Comparison
  10. Front Camera Comparison
  11. Tracking /  Positioning  Comparison
  12. Wi-Fi  Comparison
  13. Bluetooth  Comparison
  14. USB Comparison
  15. Connectivity  Comparison
  16. Audio File Formats /  Codecs Comparison
  17. Video File Formats /  Codecs Comparison
  18. Battery  Comparison
  19. Design  Comparison
  20. SIM Card  Comparison
  21. Networks  Comparison
  22. Mobile Network Technology and Bandwidth Comparison

Samsung Galaxy A51

Xiaomi Redmi K30 4G

Brand and Model   

Brand and Model 

Brand 

Brand 

Samsung
  Xiaomi

Model 

Model 

Galaxy A51
 Redmi K30 4G

Model Alias

Model Alias


M1912G7BE

M1912G7BC

Galaxy A51 Operating System 

Redmi K30 4G Operating System (OS)

Android 10
MIUI 11 (Android 10)

User Interface (UI)

User Interface (UI) 

 One UI 2.0

Galaxy A51 System on  Chip (SOC)    

Redmi K30 4G System on  Chip (SOC)

SOC 

SOC 

Samsung Exynos 7 Octa 9611
Qualcomm Snapdragon 730G

Process Technology 

Process Technology 

 10 nm 
8 nm 

CPU

CPU

4x 2.3 GHz ARM Cortex-A73
2x 2.2 GHz Kryo 470
4x 1.7 GHz ARM Cortex-A53
6x 1.8 Ghz Kryo 470

CPU Bits 

CPU Bits 

 64 bits 
 64 bits 

Instruction Set  

Instruction Set  

 ARMv8-A
 ARMv8

CPU Frequency 

CPU Frequency 

 2300 MHz  
 2200 MHz  

CPU Cores 

CPU Cores 

 8
 8

GPU

GPU

ARM Mali-G72 MP3
Qualcomm Adreno 618

GPU Cores

 GPU Cores

3

Galaxy A51 RAM Capacity 

Redmi K30 4G RAM Capacity 

4 GB

6 GB
6 GB
 8 GB
 8 GB 

RAM Type  

RAM Type  

LPDDR4X
 LPDDR4X

RAM Channels  

RAM Channels  

Double channel
 Double channel

RAM Frequency  

RAM Frequency  


 1866 MHz

Other Features 

Other Features


Game Turbo 2.0

 MI Turbo

Galaxy A51 Storage    

Redmi K30 4G Storage

  64 GB 
 64 GB
   128 GB 
  128 GB

 256 GB

 UFS 2.1

Galaxy A51 Memory Cards 

Redmi K30 4G Memory Cards 

microSD
microSD
microSDHC
 microSDHC
microSDXC
 microSDXC

Galaxy A51 Display    

Redmi K30 4G Display 

Type / Technology 

Type / Technology 

Super AMOLED
IPS

Diagonal Size 

Diagonal Size 

 6.5 in 
6.67 in 
 165.1 mm 
169.42 mm 
 16.51 cm 
16.91 cm 

Width 

Width 

  2.72 in 
2.74 in 
  69.19 mm 
  69.52 mm 
  6.92 cm 
  6.95 cm 

Height 

Height 

  5.9 in 
  6.08 in 
 149.9 mm 
  154.5 mm 
  14.99 cm 
  15.45 cm 

Aspect Ratio 

Aspect Ratio 

 2.167:1
 2.222:1 

Resolution 

Resolution 

 1080 x 2340 pixels 
1080 x 2400 pixels

Pixel Density 

Pixel Density 

  396 ppi 
  395 ppi 
 155 ppcm 
  155 ppcm 

Color Depth 

Color Depth 

  24 bits  
  24 bits  
  16777216 colors 
  16777216 colors 

Display Area 

Display Area 

  89.19 % 
  85.1 % 

Other Features 

Other Features 

 Capacitive 
 Capacitive 
 Multi-touch 
 Multi-touch 
Scratch resistant
Scratch resistant

Corning Gorilla Glass 5

2.5D curved glass screen 

Oleophobic coating

120Hz sampling rate

HDR10

 TUV Rheinland Low Light Blue Certification

Galaxy A51 Sensors    

Redmi K30 4G Sensors 

Proximity
 Proximity
Light
 Light
Accelerometer
Accelerometer
Compass
 Compass
Gyroscope
 Gyroscope
Fingerprint
 Fingerprint

 Gravity

 Pedometer
 In-display fingerprint sensor
Side-mounted fingerprint sensor

 Geomagnetic

Galaxy A51 Rear Camera    

Redmi K30 4G Rear Camera

Sensor Model

Sensor Model

 Samsung S5KGM2
Sony IMX686

Sensor type 

Sensor type 

ISOCELL
CMOS BSI

 Sensor Format

ISO

1/2.25”

Aperture

Aperture

f/2
 f/1.7

Flash Type

Flash Type

LED
Dual LED

 Image Resolution 

 Image Resolution 

 8000 x 6000 pixels 
9248 x 6944 pixels
 48 MP 
 64.22 MP 

Video resolution

Video resolution

1920 x 1080 pixels
 3840 x 2160 pixels
2.07 MP
 8.29 MP

Video FPS

Video FPS

30 fps
 30 fps

Features 

Features 

Autofocus 
Autofocus 
Continuous shooting 
Continuous shooting 
Digital zoom
Digital zoom 

 Continuous autofocus

Optical image stabilization
  Digital image stabilization
 Digital image stabilization
Geotagging 
Geo tagging 
Panorama 
Panorama 
HDR 
HDR 
Touch focus 
Touch focus 
Face detection
Face detection
White balance setting 
White balance setting  
ISO setting 
ISO setting 
Exposure compensation 
Exposure compensation 
Self-timer 
Self-timer 
Scene mode 

 Sensor size-1/2.25”
Sensor size- 1/1.7”
 Pixel size- 1.6 um (4-in-1 pixel binning)
Pixel size-1.6 um (4-in-1 pixel binning)
 Sensor type- ISOCELL Plus

 Super Phase Detection
Phase Detection
 6-element lens

 PDAF
 Pixel size- 0.8 um

 Angle of view- 79 degree

10x digital zoom

 1080p @ 120 fps

 720p @ 960 fps

Secondary rear camera - 12 MP (ultra-wide)

Secondary rear camera- 8 MP (ultra-wide angle)

Aperture size - f/2.2 (#2)
Aperture size- f/2.2 (#2) 
Pixel size- 1.12 um (#2)
Pixel size- 1.12 um (#2)

Angle of view- 120 degree (#2)

Third rear camera - 5 MP (depth-sensing)

Third rear camera- 2 MP (depth-sensing)

Aperture size - f/1.12 (#3)
 Aperture size- f/2.4 (#3)

 Pixel size- 1.75 um (#3)

Fourth Rear Camera- 5 MP (Macro)

 Fourth rear camera- 2 MP (macro)


 Pixel size- 1.75 um (#4)
Aperture size- f/2.4 (#4) 
Aperture size- f/2.4 (#4)

Galaxy A51 Front Camera

Redmi K30 4G Front Camera

Sensor Model

Sensor Model

 Samsung S5KGD1

Sensor Type

 Sensor Type

ISOCELL

 

Aperture

Aperture

f/2.2

Image Resolution 

Image Resolution 

6560 x 4928 pixels
 5963 x 3354 pixels 
32.33 MP
  20 MP 

Video Resolution

Video Resolution

1920 x 1080 pixels
 1920 x 1080 pixels
2.07 MP
 2.07 MP

Video FPS

Video FPS

30 fps
 30 fps

Features 

Features 

 Sensor size-1/2.8”

 Pixel size- 0.8 um

 Sensor type- ISOCELL
Pixel size- 0.8 um
 Face unlock
Angle of view- 78 degree

 

 Secondary front camera- 2 MP (depth-sensing)


 Pixel size- 1.75 um (#2)

 Angle of view- 83 degree (#2)

 Aperture size- f/2.4 (#2)

Galaxy A51 Audio 

Redmi K30 4G Audio 

Loudspeaker 
Loudspeaker 
Earpiece
Earpiece

Hi-Res Audio

Smart PA

1217 super linear speaker 

Galaxy A51 Radio    

Redmi K30 4G Radio 

Yes
  Yes

Galaxy A51 Tracking /  Positioning 

Redmi K30 4G Tracking /  Positioning 

GPS
 GPS
A-GPS
 A-GPS 
GLONASS
GLONASS
BeiDou
 BeiDou
Galileo 
 Galileo

Galaxy A51 Wi-Fi    

Redmi K30 4G Wi-Fi 

802.11a (IEEE 802.11a-1999)
 802.11a (IEEE 802.11a-1999)
802.11b (IEEE 802.11b-1999)
 802.11b (IEEE 802.11b-1999)
802.11g (IEEE 802.11g-1999)
 802.11g (IEEE 802.11g-2003)
802.11n (IEEE 802.11n-2003) 
 802.11n (IEEE 802.11n-2009) 
802.11n 5GHz
 802.11n 5GHz
802.11ac (IEEE 802.11ac)
 802.11ac (IEEE 802.11ac)
Dual band
 Dual band
 Wi-Fi Hotspot 
 Wi-Fi Hotspot 
Wi-Fi Direct
 Wi-Fi Direct
 Wi-Fi Display
 Wi-Fi Display

Galaxy A51 Bluetooth  

Redmi K30 4G Bluetooth

Version 

Version 

 5.0
 5.0

Features 

Features 

A2DP 
A2DP 
AVRCP

DIP

HFP

HID

HSP


LE
MAP

OPP

PAN

PBAP/PAB

HOGP

Galaxy A51 USB 

Redmi K30 4G USB 

Connector Type  

Connector Type  

USB Type-C
 USB Type-C

Version 

Version 

 2.0
  2.0

Features 

Features 

Charging 
Charging 
Mass Storage 
Mass Storage 
On-The-Go
On-The-Go

Galaxy A51 Headphone Jack 

Redmi K30 4G Headphone Jack 

Yes
Yes

Galaxy A51 Connectivity 

Redmi K30 4G Connectivity 

 Computer sync 
 Computer sync 
 OTA sync 

Tethering
 Tethering

 NFC
 VoLTE
 VoLTE
ANT+

Galaxy A51 Browser    

Redmi K30 4G Browser 

HTML 
HTML 
HTML5 
HTML5 
CSS 3 
CSS 3 

   Galaxy A51 Audio File Formats /  Codecs    

   Redmi K30 4G Audio File Formats /  Codecs    

AAC 
AAC 

AAC+ / aacPlus / HE-AAC v1
AMR / AMR-NB / GSM-AMR 
AMR / AMR-NB / GSM-AMR 
AMR-WB
AMR-WB

 aptX / apt-X

 aptX HD / apt-X HD / aptX lossless
eAAC+ / aacPlus v2 / HE-AAC v2
eAAC+ / aacPlus v2 / HE-AAC v2
FLAC 
FLAC 
M4A

MIDI 
MIDI 

MP3 
OGG 
OGG 
WMA 
WMA 
WAV 
 WAV 

Galaxy A51 Video File Formats /  Codecs    

Redmi K30 4G Video File Formats /  Codecs

3GPP 
3GPP 
3GPP2

AVI 
AVI 
DivX
DivX
Flash Video
 Flash Video
H.263
H.263
H.264 / MPEG-4 Part 10 / AVC video
H.264 / MPEG-4 Part 10 / AVC video
H.265 / MPEG-H Part 2 / HEVC

 MKV
MKV
MP4
MP4
VC-1

VP8

VP9

WebM
 WebM
WMV
 WMV
WMV7

WMV8

Xvid
Xvid

Galaxy A51 Battery    

Redmi K30 4G Battery 

Capacity

Capacity

4000 mAh
4500 mAh

Type 

Type 

Li-Polymer
 Li-Polymer

Features 

Features 

Non-removable 
 Non-removable 
Fast charging
 Fast charging

Charger Output Power

Charger Output Power

 5 V / 2 A

 9 V / 1.67 A
9 V / 3 A

Galaxy A51 Launch   

Redmi K30 4G Launch 

Announced 

Announced 

 2019, 13th December
 2019, 10th Dec.

Status 

Status 

Release December 2019
 Release 12th Dec. 2019

Galaxy A51 Price   

Redmi K30 4G Price 

-
6 GB + 64 GB = 230 $ 

6 GB + 128 GB = 240 $

 8 GB + 128 GB = 270 $

 8 GB + 256 GB = 310 $

Galaxy A51 Design    

Redmi K30 4G Design 

Colors 

Colors 

Prism Crush Black
Purple
Prism Crush Blue
Fuchsia
Prism Crush Pink

Prism Crush White

Width 

Width 

 73.6 mm 
  76.6 mm 
  7.36 cm 
  7.66 cm 
 0.24 ft 
  0.25 ft 
  2.9 in 
  3.02 in 

Height 

Height 

158.5 mm 
 165.3 mm 
15.85 cm 
 16.53 cm 
 0.52 ft 
  0.54 ft 
  6.24 in 
  6.51 in 

Thickness 

Thickness 

 7.9 mm 
  8.79 mm 
  0.79 cm 
  0.88 cm 
 0.03 ft 
  0.03 ft 
  0.31 in 
  0.35 in 

Weight 

Weight 

 172 g
  208 g
 0.38 lbs
  0.46 lbs
 6.07 oz
  7.34 oz

Volume 

Volume 

 92.16 cm3
  111.3 cm3
  5.6 in3
  6.76 in3

Body Materials

Body Materials

Plastic
Aluminium alloy

 Glass

Galaxy A51 SIM Card    

Redmi K30 4G SIM Card 

SIM Card Type  

SIM Card Type  

Nano-SIM (4FF-fourth form factor, since 2012, 12.30 x 8.80 x 0.67 mm) 
Nano-SIM (4FF-fourth form factor, since 2012, 12.30 x 8.80 x 0.67 mm)  

 Nano-SIM / microSD

Number of SIM Cards 

Number of SIM Cards 

  2
  2

Features

Features

Dual SIM stand-by
Dual SIM stand-by 

Galaxy A51 Mobile Network Technology and Bandwidth   

Redmi K30 4G Mobile Network Technology and Bandwidth 

 UMTS (384 kbit/s) 
 UMTS (384 kbit/s) 
 EDGE 
 EDGE 
 GPRS  
 GPRS  
 HSPA+ 
 HSPA+ 
LTE Cat 12 (102.0 Mbit/s, 603.0 Mbit/s)
LTE

TD-SCDMA

Galaxy A51 Networks    

Redmi K30 4G Networks

GSM

GSM

GSM 850 MHz (B5)
GSM 850 MHz (B5)
GSM 900 MHz (B8)
GSM 900 MHz (B8)
GSM 1800 MHz (B3)
GSM 1800 MHz (B3)
GSM 1900 MHz (B2)
GSM 1900 MHz (B2)

 

 CDMA


 CDMA 800 MHz (BC0)

UMTS

W-CDMA

UMTS 850 MHz (B5)
W-CDMA 850 MHz (B5)
 UMTS 900 MHz (B8)
W-CDMA 900 MHz (B8)

UMTS 1900 MHz (B2)


UMTS 2100 MHz (B1)
 W-CDMA 2100 MHz (B1)

 

TD-SCDMA


TD-SCDMA 1880-1920 MHz 

TD-SCDMA 2010-2025 MHz

LTE

LTE

LTE-FDD 850 MHz (B5)
LTE-FDD 850 MHz (B5)
 LTE-FDD 900 MHz (B8)
LTE-FDD 900 MHz (B8)
 LTE-FDD 1800 MHz (B3)
LTE-FDD 1800 MHz (B3)
LTE-FDD 2100 MHz (B1)
LTE-FDD 2100 MHz (B1)
 LTE-FDD 2600 MHz (B7)


LTE-TDD 1900 MHz (B39)

LTE-TDD 2000 MHz (B34) 

LTE-TDD 2300 MHz (B40)

LTE-TDD 2500 MHz (B41)

LTE-TDD 2600 MHz (B38)

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