Samsung Galaxy J3 (2018) vs Samsung Galaxy J7 (2017) 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, 16:9 ratio, 294 PPI
1920 x 1080 pixels, 401 PPI

Technology:

TFT
Super AMOLED

Screen-to-body:

68.87 %
73.28 %

Colors:

16 777 216

Features:

Proximity sensor
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 MP1
Mali-T830 MP2

RAM:

2GB
3GB LPDDR3

Internal storage:

16GB
16GB, available to use: 10 GB

Storage expansion:

microSDXC up to 400 GB
microSDXC up to 256 GB

Device type:

Smartphone
Smartphone

OS:

Android (9.0 Pie, 8.0 Oreo)
Android (9.0 Pie, 7.0 Nougat), Samsung One UI

Battery

Capacity:

2600 mAh
3600 mAh

Type:

User replaceable
Not user replaceable

Camera

Rear:

Single camera
Single camera

Main camera:

8 MP (Autofocus, BSI sensor)
13 MP (Autofocus)

Specifications:

Aperture size: F1.9; Focal length: 27 mm; Sensor size: 1/4"; Pixel size: 1.12 μm
Aperture size: F1.7

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:

5 MP
13 MP (Flash)

Video capture:

1920x1080 (Full HD)
1920x1080 (Full HD)

Design

Dimensions:

5.62 x 2.76 x 0.35 inches (142.7 x 70.1 x 8.9 mm)
6.00 x 2.94 x 0.31 inches (152.5 x 74.8 x 8 mm)

Weight:

5.36 oz (152.0 g)
6.38 oz (181.0 g)

Materials:

Back: Plastic
Back: Aluminum

Biometrics:

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, Silver, Rose gold

Cellular

4G (FDD):

Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 14(700 PS)
Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)

4G (TDD):

Bands 40(2300)

3G:

Bands 5(850), 2(1900), 1(2100)
Bands 5(850), 8(900), 2(1900), 1(2100)

Data Speed:

LTE Cat 4 (150/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, HSUPA, UMTS
LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

SIM type:

Nano SIM
Nano SIM

HD Voice:

Yes

VoLTE:

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

Radio:

FM
FM

Connectivity & Features

Bluetooth:

4.2
4.1

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, OTG, Mass storage device

Location:

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

Sensors:

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass, Hall (for flip covers)

Other:

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

Hearing aid compatible:

M3, T3

Phone features

Notifications:

Haptic feedback, Music ringtones, Vibration, Flight mode, Silent mode, Speakerphone

Other features:

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

Regulatory Approval

FCC approval:

Date approved:

Apr 04, 2018

FCC ID value:

A3LSMJ337A

Measured SAR:

Head:

1.22 W/kg

Body:

1.02 W/kg

Simultaneous Transmission:

1.56 W/kg

Wireless Router:

1.18 W/kg

Buyers information

In The Box:

Charger and microUSB cable

Availability

Officially announced:

Jun 07, 2018
Jun 06, 2017
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