Samsung Galaxy A51 vs Xiaomi Mi 9T: Comparison

Comparison of features, performance, design, battery, camera and connectivity between the following smartphones: Samsung Galaxy A51 vs Xiaomi Mi 9T. The complete information of specifications to decide which to buy.

Compare
Samsung Galaxy A51Samsung Galaxy A51SE. Asia · 4GB · 64GB · A515FZ
Xiaomi Mi 9TXiaomi Mi 9TGlobal · 6GB · 64GB
Technical data sheets

Basics
Samsung Galaxy A51
Samsung Galaxy A51
SE. Asia · 4GB · 64GB · A515FZ
View datasheet
vs
Xiaomi Mi 9T
Xiaomi Mi 9T
Global · 6GB · 64GB
View datasheet
vs

Score
Ki Cost-effective
Score		 -- No price,
no Ki 		7.6 Ki Cost-effective
Score
Design and Screen score 6.8Design & Materials 7.0Design & Materials
Performance and Hardware score 5.6Performance & Hardware 6.1Performance & Hardware
Camera score 6.9Camera 6.9Camera
Connectivity score 7.3 Connectivity 6.8 Connectivity
Battery score 5.2 Battery 5.3 Battery

User reviews
User score
7.4
109 reviews
9.3
381 reviews

Technical specifications of the Samsung Galaxy A51 vs Xiaomi Mi 9T

Specs where to buy Samsung Galaxy A51 Samsung Galaxy A51
SE. Asia · 4GB · 64GB · A515FZ 		Xiaomi Mi 9T price comparison Xiaomi Mi 9T
Global · 6GB · 64GB
Inches 6.5" 6.39"
Resolution FHD+ FHD+
Usable surface 88% useful 86% useful
Aspect Ratio 19.5:9 19.5:9
Dimensions 73.6 mm
158.5 mm
7.9 mm 		74.3 mm
156.7 mm
8.8 mm
Weight 172 g 191 g
Micro Exynos 9611
Octa-Core 		SnapD. 730
Octa-Core
RAM 4 GB RAM 6 GB RAM
Storage 64 GB 64 GB
AnTuTu 179.753
v8 		320.983
v9
Battery 4000 mAh 4000 mAh
Main Camera 1
48 Mpx · ƒ/2.0
IMX582 Exmor RS
2 3 4 		1
48 Mpx · ƒ/1.75
IMX582 Exmor RS
2 3
Selfie Camera SELF 32 Mpx · ƒ/2.2 SELF 20 Mpx · ƒ/2.2
Bands
OS Android 13 Tiramisu Android 11 Red Velvet Cake

Brand
Brand Samsung Xiaomi
Aliases SM-A515FZ Redmi K20, Xiaomi Redmi K20, Xiaomi Mi9T, M1903F10G

Release Date
Release date December 2019,
4 years ago 		June 2019,
4 years ago
State Not available On Sale
Market SE. Asia Global

Design & Materials

Structure

Samsung Galaxy A51
Xiaomi Mi 9T
Samsung Galaxy A51
Xiaomi Mi 9T
Size
73.6 mm • 158.5 mm • 7.9 mm
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 Print 3D Model
74.3 mm • 156.7 mm • 8.8 mm
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 Print 3D Model
Weight 172 g 191 g
Usable surface 88 % 86 %
Materials Plastic Glass, Metal
Resistance - -
Colors
Black

White

Blue

Pink
Black

Blue

Red

Screen
Diagonal 6.5" 6.39"
Type Super AMOLED AMOLED • Samsung
Aspect Ratio 19.5:9 19.5:9
Resolution FHD+
1080 x 2340 px 		FHD+
1080 x 2340 px
Density 396 Pixels per inch 403 Pixels per inch

Others

Others
  • Hole-punch Notch
  • Scratch resistant
  • Capacitive
  • Multi-touch
  • Frameless
  • 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?
6.7
7.9
Do you think it's a nice phone?
8.2
9.6
Is it comfortable?
8.3
9.2
Can you see it well in the sunlight?
7.7
9.0
Number of reviews
109 reviews
381 reviews

Performance & Hardware

Processor
Model Samsung Exynos 7 Octa 9611 Qualcomm Snapdragon 730
CPU 4x Cortex-A73 2.3 GHz + 4x Cortex-A53 1.67 GHz 2x Kryo 470 2.2 GHz + 6x Kryo 470 1.8 GHz
Type Octa-Core Octa-Core
Manufacturing 10 nm 8 nm
64 Bits Yes Yes

Graphics
GPU ARM Mali-G72 MP3 QUalcomm Adreno 618

RAM
RAM 4 GB 6 GB
Type LPDDR4X RAM LPDDR4X RAM

Antutu
Score
179.753
Antutu v8
Overall performance better than 56% of devices
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320.983
Antutu v9
Overall performance better than 66% of devices
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Storage
Capacity 64 GB 64 GB
Type -- UFS Storage 2.1
SD Slot Yes ,
Independent SD slot 		No

Security
Fingerprint Yes, in screen Yes, in screen

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

Audio

Audio
-
  • Hi-Res Audio

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

User reviews

Does it have good sound?
7.3
8.7
Does it work smoothly in everyday use?
6.8
9.4
What's your experience been with demanding games?
5.7
8.8
Number of reviews
109 reviews
381 reviews

Camera

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

Standard

Standard
Resolution 48 Mpx 48 Mpx
Sensor Sony IMX582 Exmor RS Sony IMX582 Exmor RS
Type CMOS CMOS
Aperture ƒ/ 2.0 ƒ/ 1.75
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

Wide Angle lens

Telephoto lens
Resolution
12 Mpx
8 Mpx
Sensor
Unknown
Omnivision OV8865
Type
--
CMOS BSI 2
Aperture
ƒ/ 2.2
ƒ/ 2.4
Pixel size
1.12 µm
1.40 µm
Pixel Binning
--
--
Sensor size
--
1/3.2"
3
Camera type

Portrait mode (depth)

Wide Angle lens
Resolution
5 Mpx
13 Mpx
Sensor
Unknown
Samsung S5K3L6
Type
--
ISOCELL
Aperture
ƒ/ 2.2
ƒ/ 2.4
Pixel size
1.12 µm
1.12 µm
Pixel Binning
--
--
Sensor size
--
1/3.1"
4
Camera type

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

Features
Flash LED Dual LED
Optical Stabilisation No No
Slow Motion Video Yes,
120 fps 		Yes,
960 fps
Others
  • 4K Video
  • Digital zoom
  • Quadruple camera
  • Digital image stabilization
  • Autofocus
  • Touch focus
  • Continuous shooting
  • Geotagging
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer
  • 4K Video
  • Digital zoom
  • Triple camera
  • Digital image stabilization
  • Autofocus
  • Touch focus
  • Manual focus
  • Retractable front camera
  • 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 32 Mpx 20 Mpx
Sensor Sony IMX616 Samsung S5K3T2
Type CMOS ISOCELL
Aperture ƒ/ 2.2 ƒ/ 2.2
Pixel size 0.80 µm 0.80 µm
Pixel Binning 1-4 (2x2) 1-4 (2x2)
Sensor size 1/2.8" 1/3.4"
Others
--
--

DxOMark Score
DxOMark Score -- --

User reviews

Quality of daytime photos
8.3
9.3
Quality of nighttime photos
6.5
8.1
Quality of selfies
7.9
8.8
Does it have a powerful flash?
8.0
8.7
Number of reviews
109 reviews
381 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)
  • B20 (800)
  • B26 (850)
  • B28b (700)
  • B28a (700)
  • B38 (TDD 2600)
  • B40 (TDD 2300)
  • B41 (TDD 2500)
  • 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)
3G
  • 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)
  • 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
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
  • 802.11ac
Others
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Display
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Display
  • Wi-Fi MiMO

Bluetooth
Version Bluetooth 5.0 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
  • ANT+
  • A2DP (Advanced Audio Distribution Profile)
  • LE (Low Energy)
  • APT-x

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

USB
USB
  • Charging
  • 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.

 -- 1.341 W/Kg on head
1.511 W/Kg on body
American measurement

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

 -- 1.190 W/Kg on head
1.180 W/Kg on body

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

User reviews

Does it have good coverage for calls?
8.3
9.4
Quality of the GPS
8.5
9.2
And the WiFi?
8.3
9.4
Number of reviews
109 reviews
381 reviews

Battery

Battery
Capacity
4000 mAh
See more details
4000 mAh
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Type Li-Polymer Li-Polymer
Fast charge Yes,
15.0W 		Yes,
27.0W
Others
  • Non-removable
  • Non-removable

User reviews

How long does the battery last?
  • 5%
    Less than half day
  • 30%
    Less than a day
  • 41%
    One day
  • 22%
    More than one day
  • 3%
    Two days or more
  • 1%
    Less than half day
  • 8%
    Less than a day
  • 26%
    One day
  • 54%
    More than one day
  • 11%
    Two days or more
Number of reviews
109 reviews
381 reviews

Software

Software
Operating System
  • Android 13
    Android 13 Tiramisu, 1 year ago
  • MIUI V12 (Android 11)
    Android 11 Red Velvet Cake, 3 years ago
Google Services (official) Yes Yes

User reviews

Did it come with preinstalled applications?
  • 4%
    It comes with a clean operating system
  • 70%
    It has preinstalled apps but they don't bother me
  • 26%
    It has preinstalled apps that I can't uninstall
  • 5%
    It comes with a clean operating system
  • 81%
    It has preinstalled apps but they don't bother me
  • 13%
    It has preinstalled apps that I can't uninstall
Do you regularly receive updates?
  • 2%
    Never
  • 6%
    Once a year
  • 49%
    Every six months
  • 43%
    Every two months or less
  • 2%
    Never
  • 4%
    Once a year
  • 37%
    Every six months
  • 57%
    Every two months or less
Number of reviews
109 reviews
381 reviews
Prices
Prices unavailable
From $ 410 --

Others

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