Samsung Galaxy J3 (2017) vs Samsung Galaxy J7 Duo Specs Comparison

Availability

Officially announced
May 14, 2017

Design

Dimensions
5.55 x 2.76 x 0.34 inches 141 x 70.1 x 8.6 mm	6.04 x 3.04 x 0.32 inches 153.5 x 77.2 x 8.2 mm
Weight
5.22 oz / 148.0 g	6.14 oz / 174.0 g
Materials
	Back: Plastic
Biometrics
	2D Face unlock, Fingerprint (touch)
Features
Touch sensitive control keys	Touch sensitive control keys
Keys
Left: Volume control; Right: Lock/Unlock key	Left: Volume control; Right: Lock/Unlock key
Colors
Silver	Black, Gold

Display

Size
5.0-inch, 69.74% screen-to-body	5.5-inch, 70.40% screen-to-body
Type
TFT	Super AMOLED
Resolution
1280x720px, 294 PPI	1280x720px, 16:9 ratio, 267 PPI
Colors
16 777 216	16 777 216
Protection
	Corning Gorilla Glass

Hardware

System chip
Samsung Exynos 7 Quad 7570 (14 nm)	Samsung Exynos 7 Octa 7884 (14 nm)
Processor
Quad-core 1400 MHz ARM Cortex-A53	Octa-core 1600 MHz ARM Cortex-A53
GPU
Mali-T720	ARM Mali-G71
Memory
1.5GB/16GB	4GB/32GB
Storage expansion
microSDXC up to 256 GB	microSDXC up to 256 GB
OS
Android (7.0 Nougat)	Android (8.0 Oreo)

Battery

Type
2600 mAh, Li - Ion	3000 mAh

Camera

Rear
Single camera	Dual camera
Main camera
5 MP (Autofocus, CMOS image sensor) Aperture size: F1.9	13 MP (PDAF) Aperture size: F1.9 Focal length: 27 mm Sensor size: 1/3.06" Pixel size: 1.12 μm
Second camera
	5 MP (Depth information) Aperture size: F1.9 Focal Length: 24 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) Video calling, Video sharing
Front
2 MP	8 MP (Flash) 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 Hotspot, Wi-Fi Direct 802.11 a, b, g, n, ac
USB
microUSB, USB 2.0	microUSB, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Proximity sensor	Accelerometer, Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T3
Location
GPS, A-GPS, Glonass	GPS, A-GPS, Glonass, BeiDou
Other
UMA (Wi-Fi Calling), VoIP, Tethering, Computer sync, OTA sync	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	Album art cover, Background playback
Screen mirroring
Wireless screen share	Wireless screen share
Radio
	FM
Additional microphone(s)
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	5, 8, 2, 1
Data Speed
LTE, HSPA	LTE, HSPA, HSUPA, UMTS
Dual SIM
	Yes
SIM type
Nano SIM	Micro SIM
HD Voice
Yes

Phone Features

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

Regulatory Approval

FCC approval
Date approved: Feb 08, 2017 FCC ID value: A3LSMJ327A
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: 0.48 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 J7 Duo Specs