Samsung Galaxy J3 (2017) vs Samsung Galaxy A40 Specs Comparison

Availability

Officially announced
May 14, 2017	Apr 10, 2019

Design

Dimensions
5.55 x 2.76 x 0.34 inches 141 x 70.1 x 8.6 mm	5.69 x 2.72 x 0.31 inches 144.4 x 69.2 x 7.9 mm
Weight
5.22 oz / 148.0 g	4.94 oz / 140.0 g
Materials
	Back: Plastic Frame: Plastic
Biometrics
	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
Silver	Black, Coral, Blue, White

Display

Size
5.0-inch, 69.74% screen-to-body	5.9-inch, 85.73% screen-to-body
Type
TFT	Super AMOLED
Resolution
1280x720px, 294 PPI	2340x1080px, 19.5:9 ratio, 437 PPI
Colors
16 777 216
Protection
	Corning Gorilla Glass 3

Hardware

System chip
Samsung Exynos 7 Quad 7570 (14 nm)	Exynos 7904 (14 nm)
Processor
Quad-core 1400 MHz ARM Cortex-A53	Octa-core 1800 MHz ARM Cortex-A73 and ARM Cortex-A53
GPU
Mali-T720	Mali-G71 MP2
Memory
1.5GB/16GB	4GB (LPDDR4)/64GB
Storage expansion
microSDXC up to 256 GB	microSDXC up to 512 GB
OS
Android (7.0 Nougat)	Android (11, 10, 9.0 Pie)

Battery

Type
2600 mAh, Li - Ion	3100 mAh, Li - Polymer
Charging
	Samsung Adaptive Fast Charging

Camera

Rear
Single camera	Dual camera
Main camera
5 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
1080p (30 fps) Video calling, Video sharing	1080p (30 fps) Hyperlapse, Video calling, Video sharing
Front
2 MP	25 MP Video capture: 1080p

Connectivity & Features

Bluetooth
4.2	5.0
WLAN
b,g,n Hotspot, Wi-Fi Direct 802.11 b, g, n	a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac
USB
microUSB, USB 2.0	Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Proximity sensor	Accelerometer, Gyroscope, Compass, Hall (for flip covers), Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T3
Location
GPS, A-GPS, Glonass	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
UMA (Wi-Fi Calling), VoIP, 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
Additional microphone(s)
Noise cancellation	Noise cancellation

Cellular

4G (FDD) Bands
2, 4, 5, 12	1, 3, 5, 7, 8, 20
4G (TDD) Bands
	38, 40, 41
3G Bands
5, 4, 2	1, 2, 5, 8
Data Speed
LTE, 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
HD Voice
Yes

Phone Features

Notifications
Haptic feedback
Other features
Voice dialing, Voice commands, Voice recording, TTY/TDD

Regulatory Approval

FCC approval
Date approved: Feb 08, 2017 FCC ID value: A3LSMJ327A	Date approved: Mar 08, 2019 FCC ID value: A3LSMA405FN
Measured SAR
Head: 0.73 W/kg Body: 1.04 W/kg Simultaneous Transmission: 1.32 W/kg Wireless Router: 1.10 W/kg	Head: 0.51 W/kg Body: 0.46 W/kg Simultaneous Transmission: 1.02 W/kg Wireless Router: 0.61 W/kg

Alternative variants

For AT&T

4G (FDD) Bands	2, 3, 4, 5, 7, 12

Discover more

Full Specs Samsung Galaxy J3 (2017) Specs

Full Specs Samsung Galaxy A40 Specs