Samsung Galaxy A3 (2017) vs Samsung Galaxy A40 Specs Comparison

Design

Dimensions
5.33 x 2.61 x 0.31 inches 135.4 x 66.2 x 7.9 mm	5.69 x 2.72 x 0.31 inches 144.4 x 69.2 x 7.9 mm
Weight
4.87 oz (138.0 g)	4.94 oz (140.0 g)
Materials
Back: Glass Frame: Aluminum	Back: Plastic Frame: Plastic
Resistance
Water, Dust; IP68
Biometrics
Fingerprint (touch)	2D Face unlock, Fingerprint (touch)
Features
Touch sensitive control keys
Keys
Left: Volume control; Right: Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black sky, Gold sand, Peach cloud, Blue mist	Black, Coral, Blue, White

Display

Size
4.7-inch	5.9-inch
Resolution
1280x720px, 312 PPI	2340x1080px, 19.5:9 ratio, 437 PPI
Technology
Super AMOLED	Super AMOLED
Screen-to-body
67.85 %	85.73 %
Features
Ambient light sensor, Proximity sensor	Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip
Samsung Exynos 7 Octa 7870 (14 nm)	Exynos 7904 (14 nm)
Processor
Octa-core 1600 MHz ARM Cortex-A53	Octa-core 1800 MHz ARM Cortex-A73 and ARM Cortex-A53
GPU
Mali-T830 MP2	Mali-G71 MP2
RAM
2GB (LPDDR3)	4GB (LPDDR4)
Internal storage
16GB, available to use: 9.7 GB	64GB, available to use: 49.4 GB
Storage expansion
microSDXC up to 256 GB	microSDXC up to 512 GB
OS
Android (7.0 Nougat, 6.0 Marshmallow)	Android (11, 10, 9.0 Pie), Samsung One UI

Battery

Capacity
2350 mAh	3100 mAh
Type
	Li - Polymer
Charging
	Samsung Adaptive Fast Charging

Camera

Rear
Single camera	Dual camera
Main camera
13 MP (Autofocus, CMOS image sensor) Aperture size: F1.9	16 MP (PDAF) Aperture size: F1.7 Focal length: 27 mm Sensor size: 1/2.8" Pixel size: 1.12 μm
Second camera
	5 MP (Ultra-wide) 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) Video calling, Video sharing	1920x1080 (Full HD) (30 fps) Hyperlapse, Video calling, Video sharing
Front
8 MP	25 MP, Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
4.2	5.0
WLAN
802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot	802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot
USB
Type-C	Type-C, USB 2.0
Location
GPS, A-GPS, Glonass	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer	Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Other
NFC, ANT+, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync	NFC, ANT+, VoIP, Tethering, Computer sync, OTA sync

Multimedia

Headphones
3.5mm jack	3.5mm 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)
	Noise cancellation

Cellular

4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)	Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)
4G (TDD)
Bands 40(2300)	Bands 38(2600), 40(2300), 41(2600+)
3G
Bands 5(850), 8(900), 2(1900), 1(2100)	Bands 1(2100), 2(1900), 5(850), 8(900)
Data Speed
LTE-A Cat 6 (300/50 Mbit/s), HSPA	LTE-A Cat 12/13 (600/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
	Yes
SIM type
Nano SIM	Nano SIM

Regulatory Approval

FCC approval
Date approved: Dec 21, 2016 FCC ID value: A3LSMA320F	Date approved: Mar 08, 2019 FCC ID value: A3LSMA405FN
Measured SAR
Head: 0.45 W/kg Body: 0.74 W/kg Simultaneous Transmission: 1.56 W/kg Wireless Router: 0.94 W/kg	Head: 0.51 W/kg Body: 0.46 W/kg Simultaneous Transmission: 1.02 W/kg Wireless Router: 0.61 W/kg

Availability

Officially announced
Jan 02, 2017	Apr 10, 2019

Alternative variants

Dual SIM	Yes

Links

Full specifications
Samsung Galaxy A3 (2017) Specs	Samsung Galaxy A40 Specs
PhoneArena Review
Samsung Galaxy A3 (2017) Review
User Reviews
	Samsung Galaxy A40 User Reviews