Samsung Galaxy A3 (2017) vs Samsung Galaxy A40
Display
Display size
Resolution
Pixel density
Technology
Super AMOLED
Super AMOLED
Screen-to-body ratio
67.85 %
85.73 %
Features
Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor
Camera
Rear
Single camera
Dual camera
Main camera
Hardware Features
Autofocus, CMOS image sensor
Phase detection autofocus
Specifications
Aperture size: F1.9
Aperture size: F1.7
Second camera
5 megapixels
Hardware Features
Ultra-wide
Specifications
Aperture size: F2.2; Focal Length: 12 mm
Flash
LED
LED
Video recording
1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD) (30 fps)
Features
Video calling, Video sharing
Hyperlapse, Video calling, Video sharing
Front
8 megapixels
25 megapixels
Design
Dimensions
Weight
the average is 6 oz (173 g)
the average is 6 oz (173 g)
Materials
Back: Glass; Frame: Aluminum
Back: Plastic
Resistance
Water, Dust
IP certified
IP 68
Biometrics
Fingerprint (touch)
2D Face unlock, Fingerprint (touch)
Features
Touch sensitive control keys
Colors
Black, Gold, Pink, Blue
Black, Pink, Blue, White
Hardware & Performance
System chip
Samsung Exynos 7 Octa 7870
Samsung Exynos 7 Octa 7885
Processor
GPU
Mali-T830 MP2
Mali-G71 MP2
RAM
Internal storage
16 GB
64 GB
Maximum User Storage
9.7 GB
49.4 GB
Storage expansion
up to 256 GB
up to 512 GB
OS
Android (7.0 Nougat, 6.0 Marshmallow)
Android (9.0 Pie), Samsung One UI
Battery
Capacity
2350 mAh
3100 mAh
Charging
Samsung Adaptive Fast Charging
Talk time (3G)
the average is 23 h (1396 min)
the average is 23 h (1396 min)
Internet use
3G
12 hours
9 hours
LTE
16 hours
11 hours
Wi-Fi
17 hours
11 hours
Music playback
41.00 hours
62.00 hours
Video playback
17.00 hours
14.00 hours
Cellular
LTE (FDD)
Bands 1, 2, 3, 5, 7, 8, 20
Bands 1, 3, 5, 7, 8, 20
LTE (TDD)
Bands 40
Bands 38, 40, 41
UMTS
850, 900, 1900, 2100 MHz
850, 900, 1900, 2100 MHz
GSM
850, 900, 1800, 1900 MHz
850, 900, 1800, 1900 MHz
Data
Dual SIM
Yes
SIM type
Nano SIM
Nano SIM
Connectivity
Bluetooth
4.2
5.0
Wi-Fi
802.11 a, b, g, n, ac, dual-band
802.11 a, b, g, n, ac, dual-band
USB
Yes
USB 3.1
Connector
USB Type-C (reversible)
USB Type-C (reversible)
Features
Mass storage device, USB charging
Mass storage device
Mobile Payment
Samsung Pay
Samsung Pay
Location
GPS, A-GPS, Glonass
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC, ANT+, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync
NFC, ANT+, VoIP, Tethering, Computer sync, OTA sync
Phone features
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Notifications
Haptic feedback
Haptic feedback, Music ringtones, Vibration
Other features
Voice dialing, Voice commands, Voice recording
Voice dialing, Voice commands, Voice recording
Multimedia
Screen mirroring
Wireless screen share
Wireless screen share
Radio
FM
FM
Speakers
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Headphones connector
3.5mm
3.5mm
Additional microphone(s)
for Noise cancellation
