Samsung Galaxy A40 vs Samsung Galaxy A20
Display
Display size
Resolution
Pixel density
Technology
Super AMOLED
Super AMOLED
Screen-to-body ratio
85.73 %
84.95 %
Features
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Proximity sensor
Camera
Rear
Dual camera
Dual camera
Main camera
Hardware Features
Phase detection autofocus
Autofocus
Specifications
Aperture size: F1.7; Focal length: 27 mm; Sensor size: 1/2.8"; Pixel size: 1.12 μm
Aperture size: F1.9; Focal length: 27 mm; Sensor size: 1/3.1"; Pixel size: 1.12 μm
Second camera
5 megapixels
5 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; Focal Length: 13 mm; Sensor size: 1/5"; Pixel size: 1.12 μm
Flash
LED
LED
Video recording
1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD) (30 fps)
Features
Hyperlapse, Video calling, Video sharing
Video calling, Video sharing
Front
25 megapixels
8 megapixels
Design
Dimensions
Weight
the average is 6 oz (172 g)
the average is 6 oz (172 g)
Materials
Back: Plastic
Back: Plastic
Biometrics
2D Face unlock, Fingerprint (touch)
2D Face unlock, Fingerprint (touch)
Colors
Black, Pink, Blue, White
Black, Blue, Red
Hardware & Performance
System chip
Samsung Exynos 7 Octa 7885
Samsung Exynos 7884
Processor
GPU
Mali-G71 MP2
Mali-G71 MP2
RAM
Internal storage
64 GB
32 GB
Maximum User Storage
49.4 GB
21.7 GB
Storage expansion
up to 512 GB
up to 512 GB
OS
Android (9.0 Pie), Samsung One UI
Android (9.0 Pie), Samsung One UI
Battery
Capacity
3100 mAh
4000 mAh
Charging
Samsung Adaptive Fast Charging
Samsung Adaptive Fast Charging
Talk time (3G)
the average is 23 h (1364 min)
the average is 23 h (1364 min)
Internet use
3G
9 hours
12 hours
LTE
11 hours
13 hours
Wi-Fi
11 hours
13 hours
Music playback
62.00 hours
82.00 hours
Video playback
14.00 hours
21.00 hours
Cellular
LTE (FDD)
Bands 1, 3, 5, 7, 8, 20
Bands 1, 3, 5, 7, 8, 20
LTE (TDD)
Bands 38, 40, 41
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
Yes
SIM type
Nano SIM
Nano SIM
Connectivity
Bluetooth
5.0
5.0
Wi-Fi
802.11 a, b, g, n, ac, dual-band
802.11 b, g, n
USB
USB 2.0
USB 2.0
Connector
USB Type-C (reversible)
USB Type-C (reversible)
Features
Mass storage device
Mass storage device
Mobile Payment
Samsung Pay
Location
GPS, A-GPS, Glonass, Galileo, 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
VoIP, Tethering, Computer sync, OTA sync
Phone features
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Notifications
Haptic feedback, Music ringtones, Vibration
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
Speakers
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Headphones connector
3.5mm
3.5mm
Additional microphone(s)
for Noise cancellation
for Noise cancellation
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
