Samsung Galaxy A40 vs Xiaomi Mi A3: Comparison

Comparison of features, performance, design, battery, camera and connectivity between the following smartphones: Samsung Galaxy A40 vs Xiaomi Mi A3. The complete information of specifications to decide which to buy.

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Technical data sheets

Basics

Score

Ki Price/Quality
Score
7.4 Ki Price/Quality
Score
8.0 Ki Price/Quality
Score
Design and Screen score 7.5 Design & Materials 7.0 Design & Materials
Performance and Hardware score 6.5 Performance & Hardware 6.8 Performance & Hardware
Camera score 5.5 Camera 7.7 Camera
Connectivity score 7.0 Connectivity 7.1 Connectivity
Battery score 4.7 Battery 6.9 Battery

User reviews

User score
5.9
37 opinions
8.8
193 opinions

Summary

Inches 5.9" 6.09"
Resolution FHD+ HD+
Usable surface 85% useful 82% useful
Aspect Ratio 19.5:9 19.5:9
Dimensions 69.1 mm
144.3 mm
7.9 mm
71.9 mm
153.5 mm
8.5 mm
Weight 140 g 174 g
Micro Exynos 7904
Octa-Core
SnapD. 665
Octa-Core
RAM 4 GB RAM 4 GB RAM
Storage 64 GB 64 GB
AnTuTu 156.251
v8
176.750
v8
Battery 3100 mAh 4030 mAh
Main Camera 1
16 Mpx · ƒ/1.7

2
1
48 Mpx · ƒ/1.79
IMX582 Exmor RS
2 3
Selfie Camera SELF 25 Mpx · ƒ/2.0 SELF 32 Mpx · ƒ/2.0
Bands
OS Android 9.0 P Android 10 Q

Brand

Brand Samsung Xiaomi
Aliases SM-A405FD, A405FD M1906F9SH, Xiaomi MiA3 Lite, Xiaomi MiA3, mia3

Release Date

Release date March 2019,
1 year ago
July 2019,
1 year ago
State On Sale On Sale
Market Global Global

Design & Materials

Structure

Samsung Galaxy A40
Xiaomi Mi A3
Samsung Galaxy A40
Xiaomi Mi A3
Size
69.1 mm
144.3 mm
7.9 mm
Print 3D Model
71.9 mm
153.5 mm
8.5 mm
Print 3D Model
Weight 140 g 174 g
Usable surface 85 % 82 %
Materials Plastic Aluminium alloy
Resistance - -
Colors
Black

White

Blue

Coral
Black

White

Blue

Screen

Diagonal 5.9" 6.09"
Type Super Amoled Amoled Samsung
Aspect Ratio 19.5:9 19.5:9
Resolution FHD+
1080 x 2340 px
HD+
720 x 1560 px
Density 437 Pixels per inch 282 Pixels per inch

Others

Others
  • Water Drop Notch
  • HDR10
  • Capacitive
  • Multi-touch
  • Frameless
  • Water Drop Notch
  • Brightnes 350 cd/m² (typ)
  • 60000:1 contrast ratio
  • DC dimming
  • 103% NTSC
  • LED Notifications
  • 2.5D curved glass screen
  • Corning Gorilla Glass 5
  • 3D curved glass screen
  • Capacitive
  • Multi-touch
  • Frameless

User reviews

Is it a drop-resistant and scratch-resistant smartphone?
6.1
7.8
Do you think it's a nice phone?
8.2
9.3
Is it comfortable?
8.4
9.1
Can you see it well in the sunlight?
7.2
7.7
Number of reviews
37 opinions
193 opinions

Performance & Hardware

Processor

Model Samsung Exynos 7 Octa 7904 Qualcomm Snapdragon 665
CPU 2x Cortex-A73 1.8 GHz + 6x Cortex-A53 1.6 GHz 4x Kryo 260 2.0 GHz + 4x Kryo 260 1.8 GHz
Type Octa-Core Octa-Core
Manufacturing 14 nm 11 nm
Frequency 1.8 GHz 2 GHz
64 Bits Yes Yes

Graphics

GPU ARM Mali-G71 MP2 Qualcomm Adreno 610

RAM

RAM 4 GB 4 GB
Type LPDDR4X RAM LPDDR4X RAM

Storage

Capacity 64 GB 64 GB
Type -- UFS Storage 2.1
SD Slot Yes ,
Independent SD slot
Yes ,
Slot for SD or second SIM card

Security

Fingerprint Yes, in the back Yes, in screen

Sensors

Sensors
  • Fingerprint
  • Proximity
  • Light sensor
  • Accelerometer
  • Compass
  • Gyroscope
  • Fingerprint
  • Proximity
  • Light sensor
  • Accelerometer
  • Compass
  • Gyroscope

Others

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

User reviews

Does it have good sound?
6.8
8.8
Does it work smoothly in everyday use?
6.9
9.0
What's your experience been with demanding games?
6.0
8.1
Number of reviews
37 opinions
193 opinions

Camera

Main

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

Standard

Standard
Resolution 16 Mpx 48 Mpx
Sensor Unknown Sony IMX582 Exmor RS
Type CMOS CMOS
Aperture ƒ/ 1.7 ƒ/ 1.79
ISO -- --
Pixel size -- 0.80 µm
Pixel Binning -- 1-4 (2x2)
Sensor size -- 1/2.25
2
Camera type

Wide Angle lens

Wide Angle lens
Resolution
5 Mpx
8 Mpx
Sensor
Unknown
Unknown
Type
--
--
Aperture
ƒ/ 2.2
ƒ/ 2.2
ISO
--
--
Pixel size
--
1.12 µm
Pixel Binning
--
--
Sensor size
--
--
3
Camera type
--

Portrait mode (depth)
Resolution
2 Mpx
Sensor
Unknown
Type
--
Aperture
ƒ/ 2.4
ISO
--
Pixel size
1.75 µm
Pixel Binning
--
Sensor size
--

Features

Flash LED Dual LED
Optical Stabilisation No No
Slow Motion Video Yes,
120 fps
Yes,
240 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
  • 4K Video
  • Digital 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

Selfie

SELF
Camera type

Dedicated

Dedicated
Resolution 25 Mpx 32 Mpx
Sensor Unknown Samsung S5KGD1
Type -- ISOCELL
Aperture ƒ/ 2.0 ƒ/ 2.0
ISO -- --
Pixel size -- 0.80 µm
Pixel Binning -- 1-4 (2x2)
Sensor size -- 1/2.8
Others
--
--

DxOMark Score

DxOMark Score -- --

User reviews

Quality of daytime photos
7.4
9.3
Quality of nighttime photos
5.1
8.2
Quality of selfies
7.1
9.1
Does it have a powerful flash?
7.5
8.0
Number of reviews
37 opinions
193 opinions

Connectivity

Network compatibility

5G -- --
4G LTE
  • B1 (2100)
  • B3 (1800)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B20 (800)
  • B38 (TDD 2600)
  • 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)
3G
  • B1 (2100)
  • B2 (1900)
  • 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
  • Unknown
  • 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
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Display

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
  • A2DP (Advanced Audio Distribution Profile)
  • EDR (Enhanced Data Rate)
  • HID (Human Interface Profile)
  • LE (Low Energy)

Navigation

Navigation
  • 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
  • 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.

0.490 W/Kg on head
1.340 W/Kg on body
0.301 W/Kg on head
1.097 W/Kg on body
American measurement

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

-- 1.030 W/Kg on head
1.070 W/Kg on body

Others

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

User reviews

Does it have good coverage for calls?
7.4
9.0
Quality of the GPS
7.8
8.9
And the WiFi?
8.2
8.8
Number of reviews
37 opinions
193 opinions

Battery

Battery

Capacity
3100 mAh
4030 mAh
Type Li-Polymer Li-Polymer
Fast charge Yes Yes,
18.0W
Others
  • Non-removable
  • Non-removable

User reviews

How long does the battery last?
  • 3%
    Less than half day
  • 24%
    Less than a day
  • 35%
    One day
  • 32%
    More than one day
  • 5%
    Two days or more
  • 1%
    Less than half day
  • 3%
    Less than a day
  • 17%
    One day
  • 66%
    More than one day
  • 14%
    Two days or more
Number of reviews
37 opinions
193 opinions

Software

Software

Operating System
  • Android 9.0 Pie
    Android 9.0 P, 2 years ago
  • Android 10
    Android 10 Q, 1 year ago
Google Services (official) Yes Yes

User reviews

Did it come with preinstalled applications?
  • 11%
    It comes with a clean operating system
  • 62%
    It has preinstalled apps but they don't bother me
  • 27%
    It has preinstalled apps that I can't uninstall
  • 51%
    It comes with a clean operating system
  • 48%
    It has preinstalled apps but they don't bother me
  • 2%
    It has preinstalled apps that I can't uninstall
Do you regularly receive updates?
  • 6%
    Never
  • 6%
    Once a year
  • 58%
    Every six months
  • 30%
    Every two months or less
  • 2%
    Never
  • 3%
    Once a year
  • 22%
    Every six months
  • 73%
    Every two months or less
Number of reviews
37 opinions
193 opinions

Prices

Prices

Prices

Prices