Samsung Galaxy A40 vs Xiaomi Mi A3
Display
Display size
Resolution
Pixel density
Technology
Super AMOLED
Super AMOLED
Screen-to-body ratio
85.73 %
82.56 %
Features
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
Camera
Rear
Dual camera
Triple camera
Main camera
Hardware Features
Phase detection autofocus
Phase detection autofocus
Specifications
Aperture size: F1.7; Focal length: 27 mm; Sensor size: 1/2.8"; Pixel size: 1.12 μm
Aperture size: F1.8; Sensor size: 1/2.3"; Pixel size: 0.8 μm
Second camera
5 megapixels
8 megapixels
Hardware Features
Ultra-wide
Ultra-wide
Specifications
Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/5"; Pixel size: 1.12 μm
Aperture size: F2.2; Pixel size: 1.12 μm
Third camera
2 megapixels
Hardware Features
Depth information
Specifications
Aperture size: F2.4
Flash
LED
LED
Video recording
1920x1080 (Full HD) (30 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
Features
Hyperlapse, Video calling, Video sharing
Digital image stabilization, Video calling, Video sharing
Front
25 megapixels
32 megapixels
Design
Dimensions
Weight
the average is 6 oz (172 g)
the average is 6 oz (172 g)
Materials
Back: Plastic
Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum
Biometrics
2D Face unlock, Fingerprint (touch)
2D Face unlock, In-screen fingerprint
Colors
Black, Pink, Blue, White
Gray, Blue, White
Multimedia
Headphones
3.5 mm jack
3.5 mm jack
Speakers
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Features
Album art cover, Background playback, Dolby Atmos
Album art cover, Background playback
Screen mirroring
Wireless screen share
Wireless screen share
Radio
FM
FM
Additional microphone(s)
for Noise cancellation
for Noise cancellation
Hardware & Performance
System chip
Samsung Exynos 7 Octa 7885
Qualcomm Snapdragon 665
Processor
GPU
Mali-G71 MP2
Adreno 610
RAM
Internal storage
64 GB
128 GB
Maximum User Storage
49.4 GB
Storage expansion
microSDXC up to 512 GB
microSDXC up to 256 GB
OS
Android (9.0 Pie), Samsung One UI
Android (9.0 Pie)
Connectivity & Features
Bluetooth
5.0
5.0
Wi-Fi
802.11 a, b, g, n, ac, dual-band; Hotspot, Wi-Fi Direct
802.11 a, b, g, n, ac, dual-band; Hotspot, Wi-Fi Direct
USB
USB 2.0
Yes
Connector
USB Type-C (reversible)
USB Type-C (reversible)
Features
Mass storage device
Mass storage device
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Accelerometer, Gyroscope, Compass
Mobile Payment
Samsung Pay
Other
NFC, ANT+, VoIP, Tethering, Computer sync, OTA sync
Infrared, VoIP, Tethering, Computer sync, OTA sync
Cellular
LTE (FDD)
Bands 1, 3, 5, 7, 8, 20
Bands 1, 2, 3, 4, 5, 7, 8, 20, 28
LTE (TDD)
Bands 38, 40, 41
Bands 38, 40
UMTS
850, 900, 1900, 2100 MHz
850, 900, 1700/2100, 1900, 2100 MHz
Data
Dual SIM
Yes
Yes
SIM type
Nano SIM
Nano SIM
Battery
Capacity
3100 mAh
4030 mAh
Type
Li - Polymer, Not user replaceable
Not user replaceable
Charging
Samsung Adaptive Fast Charging
Qualcomm Quick Charge 3.0
Talk time (3G)
the average is 23 h (1362 min)
Internet use
3G: 9 hours; LTE: 11 hours; Wi-Fi: 11 hours
Music playback
62.00 hours
Video playback
14.00 hours
Phone features
Notifications
Haptic feedback, Music ringtones, Vibration
Music ringtones, Vibration
Other features
Voice dialing, Voice commands, Voice recording
Voice dialing, Voice commands, Voice recording
Regulatory Approval
FCC measured SAR
Head
0.51 W/kg
Body
0.46 W/kg
Simultaneous Transmission
1.02 W/kg
Wireless Router
0.61 W/kg
Shopping information
In The Box
10W charger, USB Type-C cable, SIM eject tool, User guide, Soft case, Warranty card
