Samsung Galaxy M40 vs Xiaomi Mi A3 Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

Samsung Galaxy M40 Xiaomi Mi A3
Released · Jun 18, 2019
Released · Jul 24, 2019
6.3-inch · 2340x1080px
6.1-inch · 1560x720px
Triple camera
Triple camera
6GB · 128GB
4GB · 128GB
3500 mAh
4030 mAh

Availability

Officially announced
Jun 11, 2019 Jul 17, 2019

Design

Dimensions
6.11 x 2.91 x 0.31 inches
155.3 x 73.9 x 7.9 mm
6.04 x 2.83 x 0.33 inches
153.48 x 71.85 x 8.475 mm
Weight
5.93 oz / 168.0 g 6.13 oz / 173.8 g
Materials
Back: Plastic Back: Glass (Corning Gorilla Glass 5)
Frame: Plastic
Biometrics
2D Face unlock, Fingerprint (touch) 2D Face unlock, Optical in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key Back: Volume control, Lock/Unlock key
Colors
Midnight blue, Seawater blue Gray, Blue, White

Display

Size
6.3-inch, 84.94% screen-to-body 6.1-inch, 82.56% screen-to-body
Type
IPS LCD Super AMOLED
Resolution
2340x1080px, 19.5:9 ratio, 409 PPI 1560x720px, 19.5:9 ratio, 282 PPI
Protection
Corning Gorilla Glass Corning Gorilla Glass 5
Features
Scratch-resistant glass, Proximity sensor

Hardware

System chip
Snapdragon 675 SM6150 (11 nm) Snapdragon 665 (11 nm)
Processor
Octa-core
2000 MHz
Kryo 460
Octa-core
2000 MHz
Kryo 260
GPU
Adreno 612 Adreno 610
Memory
6GB (LPDDR4)/128GB 4GB (LPDDR4)/128GB
4GB/64GB
Storage expansion
microSDXC up to 512 GB microSDXC up to 256 GB
OS
Android (10, 9.0 Pie) Android (11, 10, 9.0 Pie)

Battery

Type
3500 mAh 4030 mAh
Charging
Samsung Adaptive Fast Charging Qualcomm Quick Charge 3.0

Camera

Rear
Triple camera Triple camera
Main camera
32 MP (PDAF)
Aperture size: F1.7
Focal length: 27 mm
Sensor size: 1/2.8"
Pixel size: 0.8 μm
48 MP (PDAF)
Aperture size: F1.8
Sensor size: 1/2.3"
Pixel size: 0.8 μm
Second camera
8 MP (Ultra-wide, PDAF)
Aperture size: F2.2
Focal Length: 13 mm
Sensor size: 1/4"
Pixel size: 1.12 μm
8 MP (Ultra-wide)
Aperture size: F2.2
Pixel size: 1.12 μm
Third camera
5 MP (Depth information)
Aperture size: F2.2
Focal Length: 24 mm
Sensor size: 1/5"
Pixel size: 1.12 μm
2 MP (Depth information)
Aperture size: F2.4
Flash
LED LED
Video recording
4K UHD (30 fps), 1080p (30 fps), 720p (240 fps)
Hyperlapse, Video calling, Video sharing
4K UHD (30 fps), 1080p (120 fps), 720p (240 fps)
EIS, Video calling, Video sharing
Front
16 MP (HDR)
Video capture: 1080p
32 MP
Video capture: 1080p

Connectivity & Features

Bluetooth
5.0 5.0
WLAN
a,b,g,n,ac,dual-band
Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac
a,b,g,n,ac,dual-band
Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac
USB
Type-C, USB 2.0 Type-C
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Proximity sensor Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC, ANT+, VoIP, Tethering, Computer sync, OTA sync Infrared, VoIP, Tethering, Computer sync, OTA sync

Multimedia

Headphones
No 3.5mm jack 3.5mm jack
Speakers
Earpiece, Loudspeaker Earpiece, Loudspeaker
Features
Dolby Atmos, Album art cover, Background playback Album art cover, Background playback
Screen mirroring
Wireless screen share Wireless screen share
Radio
FM FM
Additional microphone(s)
Noise cancellation Noise cancellation

Cellular

4G (FDD) Bands
1, 3, 5, 8 1, 2, 3, 4, 5, 7, 8, 20, 28
4G (TDD) Bands
40, 41 38, 40
3G Bands
5, 8, 1 5, 8, 4, 2, 1
Data Speed
LTE-A Cat 13/5 (400/75 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s LTE-A Cat 9 (450/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes Yes
SIM type
Nano SIM Nano SIM

Alternative variants

with 64 GB storage
Memory 64GB
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