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

VIEW ON AMAZON

Display

Display size

5.0 inches
5.5 inches

Resolution

720 x 1280 pixels
720 x 1280 pixels

Pixel density

294 ppi
267 ppi

Technology

TFT
TFT

Screen-to-body ratio

69.74 %
71.45 %

Features

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

Camera

Rear

Single camera
Single camera

Main camera

5 megapixels
13 megapixels

Hardware Features

Autofocus, CMOS image sensor
Phase detection autofocus

Specifications

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

Video recording

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

Features

Video calling, Video sharing
Video calling, Video sharing

Front

2 megapixels
13 megapixels

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 g)
the average is 6.1 oz (174 g)
6.38 oz (181 g)
the average is 6.1 oz (174 g)

Materials

 
Back: Plastic

Biometrics

 
2D Face unlock

Features

Touch sensitive control keys
Touch sensitive control keys

Colors

Silver
Black

Multimedia

Headphones

3.5 mm jack
3.5 mm 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
 

Hardware & Performance

System chip

Samsung Exynos 7 Quad 7570
Samsung Exynos 7 Octa 7870

Processor

Quad-core, 1400 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 1600 MHz, ARM Cortex-A53, 64-bit, 14 nm

GPU

Mali-T720
Mali-T830 MP1

RAM

1.5 GB
2 GB

Internal storage

16 GB
32 GB

Available to use

10 GB
 

Storage expansion

microSDXC up to 256 GB
microSDXC up to 400 GB

OS

Android (7.0 Nougat)
Android (8.0 Oreo)

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; Hotspot, Wi-Fi Direct

USB

microUSB, USB 2.0
microUSB, USB 2.0

Features

Mass storage device, USB 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

Cellular

LTE (FDD)

Bands 2, 4, 5, 12
Bands 2, 3, 4, 5, 7, 12, 14

UMTS

850, 1700/2100, 1900 MHz
850, 1900, 2100 MHz

Data

LTE, HSPA
LTE, HSPA, HSUPA

SIM type

Nano SIM
Nano SIM

HD Voice

Yes
Yes

Battery

Capacity

2600 mAh
3300 mAh

Type

Li - Ion, User replaceable
Not user replaceable

Talk time

23.00 hours
the average is 20 h (1205 min)
31.10 hours
the average is 20 h (1205 min)

Stand-by time

17.0 days (408 hours)
the average is 21 days (509 h)
32.0 days (768 hours)
the average is 21 days (509 h)

Talk time (3G)

19.00 hours
the average is 23 h (1387 min)
 

Music playback

 
76.70 hours

Video playback

 
20.00 hours

Phone features

Notifications

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

Other features

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

Regulatory Approval

FCC approval

 
 

Date approved

Feb 08, 2017
Apr 24, 2018

FCC ID value: A3LSMJ327A link
FCC ID value: A3LSMJ737A link

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

Shopping information

In The Box

 
microUSB cable, Wall Charger

MSRP price

 
$ 230
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