Samsung Galaxy J3 (2017) vs Samsung Galaxy J7 (2018) Specs Comparison

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

5.0 inches
5.5 inches

Resolution:

1280 x 720 pixels, 294 PPI
1280 x 720 pixels, 16:9 ratio, 267 PPI

Technology:

TFT
TFT

Screen-to-body:

69.74 %
71.45 %

Colors:

16 777 216

Features:

Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip:

Samsung Exynos 7 Quad 7570 (14 nm)
Samsung Exynos 7 Octa 7870 (14 nm)

Processor:

Quad-core, 1400 MHz, ARM Cortex-A53, 64-bit
Octa-core, 1600 MHz, ARM Cortex-A53, 64-bit

GPU:

Mali-T720
Mali-T830 MP1

RAM:

1.5GB
2GB LPDDR3

Internal storage:

16GB, available to use: 10 GB
32GB

Storage expansion:

microSDXC up to 256 GB
microSDXC up to 400 GB

Device type:

Smartphone
Smartphone

OS:

Android (7.0 Nougat)
Android (8.0 Oreo)

Battery

Capacity:

2600 mAh
3300 mAh

Type:

Li - Ion, User replaceable
Not user replaceable

Camera

Rear:

Single camera
Single camera

Main camera:

5 MP (Autofocus, CMOS image sensor)
13 MP (PDAF)

Specifications:

Aperture size: F1.9
Aperture size: F1.7; Focal length: 28 mm; Sensor size: 1/3.06"; Pixel size: 1.12 μm

Flash:

LED
LED

Video recording:

1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD) (30 fps)

Features:

Video calling, Video sharing
Video calling, Video sharing

Front:

2 MP
13 MP

Design

Dimensions:

5.55 x 2.76 x 0.34 inches (141 x 70.1 x 8.6 mm)
6.03 x 3 x 0.34 inches (153.2 x 76.2 x 8.6 mm)

Weight:

5.22 oz (148.0 g)
6.38 oz (181.0 g)

Materials:

Back: Plastic

Biometrics:

2D Face unlock

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

Cellular

4G (FDD):

Bands 2(1900), 4(AWS-1), 5(850), 12(700 a)
Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 14(700 PS)

3G:

Bands 5(850), 4(1700/2100), 2(1900)
Bands 5(850), 2(1900), 1(2100)

Data Speed:

LTE, HSPA
LTE, HSPA, HSUPA

SIM type:

Nano SIM
Nano SIM

HD Voice:

Yes
Yes

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

Additional microphone(s):

for Noise cancellation

Connectivity & Features

Bluetooth:

4.2
4.2

Wi-Fi:

802.11 b, g, n; Hotspot, Wi-Fi Direct
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB:

microUSB, USB 2.0
microUSB, USB 2.0

Features:

Mass storage device, Charging
Charging, Mass storage device

Location:

GPS, A-GPS, Glonass
GPS, A-GPS, Glonass

Sensors:

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass

Other:

UMA (Wi-Fi Calling), VoIP, Tethering, Computer sync, OTA sync
ANT+, UMA (Wi-Fi Calling), VoIP, Tethering, Computer sync, OTA sync

Hearing aid compatible:

M3, T3
M3, T3

Phone features

Notifications:

Haptic feedback

Other features:

Voice dialing, Voice commands, Voice recording, TTY/TDD

Regulatory Approval

FCC approval:

Date approved:

Feb 08, 2017
Apr 24, 2018

FCC ID value:

A3LSMJ327A
A3LSMJ737A

Measured SAR:

Head:

0.73 W/kg
1.03 W/kg

Body:

1.04 W/kg
0.76 W/kg

Simultaneous Transmission:

1.32 W/kg
1.58 W/kg

Wireless Router:

1.10 W/kg
0.98 W/kg

Phablet:

3.58 W/kg

Buyers information

Price:

$ 230

In The Box:

microUSB cable, Wall Charger

Availability

Officially announced:

May 14, 2017
Jun 07, 2018
FCC OKs Cingular\'s purchase of AT&T Wireless