Samsung Galaxy A30 vs Samsung Galaxy A8 Star vs Xiaomi Mi 9 SE vs Redmi Note 7: Comparison

Comparison of features, performance, design, battery, camera and connectivity between the following smartphones: Samsung Galaxy A30 vs Samsung Galaxy A8 Star vs Xiaomi Mi 9 SE vs Redmi Note 7. The complete information of specifications to decide which to buy.

Compare
Samsung Galaxy A30Samsung Galaxy A30Global · 3GB · 32GB · A305FD
Samsung Galaxy A8 StarSamsung Galaxy A8 StarGlobal · 4GB · 64GB
Xiaomi Mi 9 SEXiaomi Mi 9 SEGlobal · 6GB · 64GB
Redmi Note 7Redmi Note 7Global · 4GB · 64GB
Technical data sheets

Basics
Samsung Galaxy A30
Samsung Galaxy A30
Global · 3GB · 32GB · A305FD
View datasheet
vs
Samsung Galaxy A8 Star
Samsung Galaxy A8 Star
Global · 4GB · 64GB
View datasheet
vs
Xiaomi Mi 9 SE
Xiaomi Mi 9 SE
Global · 6GB · 64GB
View datasheet
vs
Redmi Note 7
Redmi Note 7
Global · 4GB · 64GB
View datasheet
vs

Score
Ki Cost-effective
Score		 -- Not available -- Not available 7.6 Ki Cost-effective
Score 		7.3 Ki Cost-effective
Score
Design and Screen score --Design & Materials --Design & Materials 6.9Design & Materials 6.1Design & Materials
Performance and Hardware score --Performance & Hardware --Performance & Hardware 5.6Performance & Hardware 5.4Performance & Hardware
Camera score --Camera --Camera 7.3Camera 6.1Camera
Connectivity score -- Connectivity -- Connectivity 6.7 Connectivity 6.2 Connectivity
Battery score --Battery --Battery 4.7 Battery 5.1 Battery

User reviews
User score
7.9
136 reviews
--
1 review
9.0
118 reviews
8.9
765 reviews

Technical specifications of the Samsung Galaxy A30 vs Samsung Galaxy A8 Star vs Xiaomi Mi 9 SE vs Redmi Note 7

Specs stores to buy Samsung Galaxy A30 Samsung Galaxy A30
Global · 3GB · 32GB · A305FD 		stores to buy Samsung Galaxy A8 Star Samsung Galaxy A8 Star
Global · 4GB · 64GB 		Xiaomi Mi 9 SE price comparison Xiaomi Mi 9 SE
Global · 6GB · 64GB 		Redmi Note 7 price compare Redmi Note 7
Global · 4GB · 64GB
Inches 6.4" 6.3" 5.97" 6.3"
Resolution FHD+ FHD+ FHD+ FHD+
Usable surface 84% useful 80% useful 85% useful 81% useful
Aspect Ratio 19.5:9 18:9 19.5:9 19.5:9
Dimensions 74.7 mm
158.5 mm
7.7 mm 		77.0 mm
162.4 mm
7.6 mm 		70.5 mm
147.5 mm
7.5 mm 		75.2 mm
159.2 mm
8.1 mm
Weight 165 g 191 g 155 g 186 g
Micro Exynos 7904
Octa-Core 		SnapD. 660
Octa-Core 		SnapD. 712
Octa-Core 		SnapD. 660
Octa-Core
RAM 3 GB RAM 4 GB RAM 6 GB RAM 4 GB RAM
Storage 32 GB 64 GB 64 GB 64 GB
AnTuTu 107.452
v7 		135.026
v? 		226.183
v8 		166.147
v8
Battery 4000 mAh 3700 mAh 3070 mAh 4000 mAh
Main Camera 1
16 Mpx · ƒ/1.7

2 		1
24 Mpx · ƒ/1.7

2 		1
48 Mpx · ƒ/1.75
IMX586 Exmor RS
2 3 		1
48 Mpx · ƒ/1.8
S5KGM1
2
Selfie Camera SELF 16 Mpx · ƒ/2.0 SELF 24 Mpx · ƒ/-- SELF 24.8 Mpx · ƒ/2.0 SELF 13 Mpx · ƒ/2.2
Bands
OS Android 10 Q Android 8.0 Oreo Android 9.0 P Android 10 Q

Brand
Brand Samsung Samsung Xiaomi Xiaomi
Aliases SM-A305FD, A305FD SM-G8850Z, G8850Z Xiaomi Mi9 SE, M1903F2G Xiaomi Redmi Note7, Red Rice Note 7, Red Rice Note7, M1901F7G

Release Date
Release date February 2019,
5 years ago 		July 2018,
5 years ago 		February 2019,
5 years ago 		January 2019,
5 years ago
State Not available Not available On Sale On Sale
Market Global Global Global Global

Design & Materials

Structure

Samsung Galaxy A30
Samsung Galaxy A8 Star
Xiaomi Mi 9 SE
Redmi Note 7
Samsung Galaxy A30
Samsung Galaxy A8 Star
Xiaomi Mi 9 SE
Redmi Note 7
Size
74.7 mm • 158.5 mm • 7.7 mm
See more details
 Print 3D Model
77.0 mm • 162.4 mm • 7.6 mm
See more details
 Print 3D Model
70.5 mm • 147.5 mm • 7.5 mm
See more details
 Print 3D Model
75.2 mm • 159.2 mm • 8.1 mm
See more details
 Print 3D Model
Weight 165 g 191 g 155 g 186 g
Usable surface 84 % 80 % 85 % 81 %
Materials Plastic Polycarbonate Aluminium alloy Plastic, Glass
Resistance - - - -
Colors
Black

White

Blue
Black

White
Black

Blue

Pink
Black

Blue

Red

Screen
Diagonal 6.4" 6.3" 5.97" 6.3"
Type Super AMOLED Super AMOLED AMOLED • Samsung LTPS LCD
Aspect Ratio 19.5:9 18:9 19.5:9 19.5:9
Resolution FHD+
1080 x 2340 px 		FHD+
1080 x 2220 px 		FHD+
1080 x 2340 px 		FHD+
1080 x 2340 px
Density 403 Pixels per inch 392 Pixels per inch 432 Pixels per inch 409 Pixels per inch

Others

Others
  • Water Drop Notch
  • Corning Gorilla Glass 3
  • 2.5D curved glass screen
  • Capacitive
  • Multi-touch
  • Frameless
  • Without Notch
  • 2.5D curved glass screen
  • Capacitive
  • Multi-touch
  • Water Drop Notch
  • Brightnes 600 cd/m² (typ)
  • 60000:1 contrast ratio
  • Always-On Display
  • HDR10
  • 103% NTSC
  • Scratch resistant
  • 2.5D curved glass screen
  • Corning Gorilla Glass 5
  • Capacitive
  • Multi-touch
  • Frameless
  • Water Drop Notch
  • Brightnes 450 cd/m² (typ)
  • 1500:1 contrast ratio
  • NTSC
  • 84% NTSC
  • LED Notifications
  • Scratch resistant
  • 2.5D curved glass screen
  • Corning Gorilla Glass 5
  • Capacitive
  • Multi-touch
  • LTPS (Low Temperature PolySilicon silicon)

User reviews

Is it a drop-resistant and scratch-resistant smartphone?
7.1
--
8.2
8.0
Do you think it's a nice phone?
8.7
--
9.5
9.2
Is it comfortable?
8.4
--
9.4
8.8
Can you see it well in the sunlight?
7.9
--
9.1
8.0
Number of reviews
136 reviews
--
118 reviews
765 reviews

Performance & Hardware

Processor
Model Samsung Exynos 7 Octa 7904 Qualcomm Snapdragon 660 MSM8976 Plus Qualcomm Snapdragon 712 Qualcomm Snapdragon 660 MSM8976 Plus
CPU 2x Cortex-A73 1.8 GHz + 6x Cortex-A53 1.6 GHz 4x Kryo 260 2.2 Ghz + 4x Kryo 260 1.8 Ghz 2x Kryo 360 2.2 GHz + 6x Kryo 360 1.7 GHz 4x Kryo 260 2.2 Ghz + 4x Kryo 260 1.8 Ghz
Type Octa-Core Octa-Core Octa-Core Octa-Core
Manufacturing 14 nm 14 nm 10 nm 14 nm
64 Bits Yes Yes Yes Yes

Graphics
GPU ARM Mali-G71 MP2 Qualcomm Adreno 512 Qualcomm Adreno 616 Qualcomm Adreno 512

RAM
RAM 3 GB 4 GB 6 GB 4 GB
Type LPDDR4X RAM -- LPDDR4X RAM LPDDR4X RAM

Antutu
Score
107.452
Antutu v7
Overall performance better than 35% of devices
See more details
135.026
Antutu v?
Overall performance better than 3% of devices
See more details
226.183
Antutu v8
Overall performance better than 61% of devices
See more details
166.147
Antutu v8
Overall performance better than 54% of devices
See more details

Storage
Capacity 32 GB 64 GB 64 GB 64 GB
Type eMMC 5.1 Storage -- UFS Storage 2.1 eMMC 5.1 Storage
SD Slot Yes ,
Independent SD slot 		Yes ,
Independent SD slot 		No Yes ,
Slot for SD or second SIM card

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

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

Audio

Audio
-
-
-
-

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

User reviews

Does it have good sound?
6.9
--
8.2
8.4
Does it work smoothly in everyday use?
8.0
--
9.2
8.8
What's your experience been with demanding games?
6.8
--
8.8
8.2
Number of reviews
136 reviews
--
118 reviews
765 reviews

Camera

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

Standard

Standard

Standard

Standard
Resolution 16 Mpx 24 Mpx 48 Mpx 48 Mpx
Sensor Unknown Unknown Sony IMX586 Exmor RS Samsung S5KGM1
Type CMOS BSI CMOS CMOS ISOCELL
Aperture ƒ/ 1.7 ƒ/ 1.7 ƒ/ 1.75 ƒ/ 1.8
ISO -- -- 100 - 3200 --
Pixel size -- -- 0.80 µm 0.80 µm
Pixel Binning -- -- 1-4 (2x2) 1-4 (2x2)
Sensor size -- -- 1/2" 1/2"
2
Camera type



Telephoto lens

Portrait mode (depth)
Resolution
5 Mpx
16 Mpx
8 Mpx
5 Mpx
Sensor
Unknown
Unknown
Omnivision OV8856
Samsung S5K5E8
Type
--
--
PureCel
CMOS
Aperture
ƒ/ 2.2
ƒ/ 1.7
ƒ/ 2.4
ƒ/ --
Pixel size
--
0.00 µm
1.12 µm
1.12 µm
Pixel Binning
--
--
--
--
Sensor size
--
--
1/4"
1/5"
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 No Dual LED Dual LED
Optical Stabilisation No Yes No No
Slow Motion Video No,
30 fps 		No,
30 fps 		Yes,
960 fps 		Yes,
120 fps
Others
  • Digital zoom
  • Dual camera
  • Autofocus
  • Touch focus
  • Continuous shooting
  • Geotagging
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer
  • Digital zoom
  • Dual camera
  • Optical Stabilization (OIS)
  • Autofocus
  • Touch focus
  • Continuous shooting
  • Geotagging
  • Panorama
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer
  • 4K Video
  • Digital zoom
  • Optical zoom
  • Triple 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
  • 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

Dedicated

Dedicated
Resolution 16 Mpx 24 Mpx 24.8 Mpx 13 Mpx
Sensor Unknown Unknown Sony IMX576 Exmor RS Omnivision OV13855
Type -- -- CMOS BSI PureCel
Aperture ƒ/ 2.0 ƒ/ -- ƒ/ 2.0 ƒ/ 2.2
Pixel size -- 0.00 µm 1.00 µm 1.12 µm
Pixel Binning -- -- 1-4 (2x2) --
Sensor size -- -- 1/2.78" 1/2.9"
Others
--
--
--
--

DxOMark Score
DxOMark Score -- -- -- --

User reviews

Quality of daytime photos
8.3
--
9.3
8.9
Quality of nighttime photos
6.0
--
8.1
7.7
Quality of selfies
8.1
--
8.8
8.0
Does it have a powerful flash?
8.0
--
8.6
8.2
Number of reviews
136 reviews
--
118 reviews
765 reviews
Kimovil Photo Lab

Xiaomi Mi 9 SE camera: Comparison of real photos

  • Samsung Galaxy A30
  • Samsung Galaxy A8 Star
  • Xiaomi Mi 9 SE
  • Redmi Note 7
Compare technical photos

Connectivity

Network compatibility

5G -- -- -- --
4G LTE
  • B1 (2100)
  • B3 (1800)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B20 (800)
  • B38 (TDD 2600)
  • B40 (TDD 2300)
  • B1 (2100)
  • B4 (1700/2100 AWS 1)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B12 (700)
  • B17 (700)
  • B38 (TDD 2600)
  • B39 (TDD 1900)
  • B40 (TDD 2300)
  • B41 (TDD 2500)
  • 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)
  • 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)
  • B5 (850)
  • B8 (900)
  • B1 (2100)
  • B2 (1900)
  • B5 (850)
  • B8 (900)
  • B34 (TD 2000)
  • B39 (TD 1900+)
  • B1 (2100)
  • B2 (1900)
  • B4 (1700/2100 AWS A-F)
  • B5 (850)
  • B8 (900)
  • B1 (2100)
  • B2 (1900)
  • B4 (1700/2100 AWS A-F)
  • B5 (850)
  • B8 (900)
2G
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)
  • CDMA BC0 (800)
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)
  • 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 Dual Sim Dual Standby Dual Sim Dual Standby
Type
  • Nano SIM
  • Nano SIM
  • Nano SIM
  • Nano SIM
  • 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
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
  • 802.11ac
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
  • 802.11ac
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
  • 802.11ac
Others
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Display
  • Wi-Fi MiMO
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Display

Bluetooth
Version Bluetooth 5.0 Bluetooth 5.0 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)
  • MAP (Message Access Profile)
  • PAN (Personal Area Networking Profile)
  • OPP (Object Push Profile)
  • PBAP/PAB (Phone Book Access Profile)
  • HOGP
  • 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)
  • MAP (Message Access Profile)
  • PAN (Personal Area Networking Profile)
  • OPP (Object Push Profile)
  • PBAP/PAB (Phone Book Access Profile)
  • HOGP
  • 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
  • A-GPS
  • GLONASS
  • Beidou
  • GPS
  • A-GPS
  • GLONASS
  • Beidou
  • Galileo
  • GPS
  • A-GPS
  • GLONASS
  • Beidou

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

 0.246 W/Kg on head
1.165 W/Kg on body 		-- 1.385 W/Kg on head
1.385 W/Kg on body 		0.591 W/Kg on head
1.274 W/Kg on body
American measurement

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

 0.457 W/Kg on head
0.689 W/Kg on body 		-- 1.190 W/Kg on head
1.170 W/Kg on body 		1.150 W/Kg on head
1.170 W/Kg on body

Others
Others
  • Audio Jack
  • Radio FM
  • Computer sync
  • OTA sync
  • Tethering.
  • VoLTE
  • ANT+
  • NFC
  • Audio Jack
  • Radio FM
  • Computer sync
  • OTA sync
  • Tethering.
  • ANT+
  • 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?
8.5
--
9.1
8.8
Quality of the GPS
8.4
--
9.1
8.7
And the WiFi?
8.5
--
9.1
8.8
Number of reviews
136 reviews
--
118 reviews
765 reviews

Battery

Battery
Capacity
4000 mAh
See more details
3700 mAh
See more details
3070 mAh
See more details
4000 mAh
See more details
Type Li-Ion Li-Ion Li-Polymer Li-Polymer
Fast charge Yes Yes Yes,
18.0W 		Yes,
18.0W
Others
  • Non-removable
  • Non-removable
  • Non-removable
  • Non-removable

User reviews

How long does the battery last?
  • 1%
    Less than half day
  • 12%
    Less than a day
  • 44%
    One day
  • 39%
    More than one day
  • 5%
    Two days or more
--
  • 3%
    Less than half day
  • 19%
    Less than a day
  • 52%
    One day
  • 25%
    More than one day
  • 1%
    Two days or more
  • 1%
    Less than half day
  • 10%
    Less than a day
  • 33%
    One day
  • 49%
    More than one day
  • 7%
    Two days or more
Number of reviews
136 reviews
--
118 reviews
765 reviews

Software

Software
Operating System
  • Android 10
    Android 10 Q, 4 years ago
  • Android 8.0 Oreo
    Android 8.0 Oreo, 6 years ago
  • MIUI V11 (Android 9 P)
    Android 9.0 P, 5 years ago
  • MIUI V11 (Android 10)
    Android 10 Q, 4 years ago
Google Services (official) Yes Yes 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
--
  • 6%
    It comes with a clean operating system
  • 82%
    It has preinstalled apps but they don't bother me
  • 12%
    It has preinstalled apps that I can't uninstall
  • 6%
    It comes with a clean operating system
  • 79%
    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?
  • 5%
    Never
  • 5%
    Once a year
  • 47%
    Every six months
  • 43%
    Every two months or less
--
  • 0%
    Never
  • 4%
    Once a year
  • 36%
    Every six months
  • 61%
    Every two months or less
  • 3%
    Never
  • 5%
    Once a year
  • 40%
    Every six months
  • 52%
    Every two months or less
Number of reviews
136 reviews
--
118 reviews
765 reviews
Prices
Prices unavailable
Prices unavailable
From $ 158 --
From $ 120 --

Others

Common comparisons