Samsung Galaxy J3 (2018) vs Samsung Galaxy J7 Refine

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

68.87 %
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

8 megapixels
13 megapixels

Hardware Features

Autofocus, Back-illuminated sensor (BSI)
Phase detection autofocus

Specifications

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

5 megapixels
13 megapixels

Design

Dimensions

5.62 x 2.76 x 0.35 inches (142.7 x 70.1 x 8.9 mm)
6.03 x 3 x 0.34 inches (153.2 x 76.2 x 8.6 mm)

Weight

5.36 oz (152 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
Gold

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

Radio

FM
 

Additional microphone(s)

 
Yes

Hardware & Performance

System chip

Samsung Exynos 7 Quad 7570
Samsung Exynos 7 Octa 7884

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 MP1
Mali-T830 MP1

RAM

2 GB
2 GB

Internal storage

16 GB
32 GB

Storage expansion

microSDXC up to 400 GB
microSDXC up to 400 GB

OS

Android (9.0 Pie, 8.0 Oreo)
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
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, 3, 4, 5, 7, 12, 14
Bands 25, 26

LTE (TDD)

 
Bands 41

UMTS

850, 1900, 2100 MHz
 

Data

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), HSPA, HSUPA

SIM type

Nano SIM
Nano SIM

HD Voice

Yes
Yes

Battery

Capacity

2600 mAh
3300 mAh

Type

User replaceable
Li - Polymer, Not user replaceable

Talk time

18.70 hours
the average is 21 h (1250 min)
31.00 hours
the average is 21 h (1250 min)

Stand-by time

18.0 days (432 hours)
the average is 21 days (493 h)
 

Music playback

63.00 hours
 

Video playback

15.00 hours
20.00 hours

Phone features

Notifications

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

Apr 04, 2018
May 07, 2018

FCC ID value: A3LSMJ337A link
FCC ID value: A3LSMJ737P link

FCC measured SAR

 
 

Head

1.22 W/kg
0.96 W/kg

Body

1.02 W/kg
0.76 W/kg

Simultaneous Transmission

1.56 W/kg
1.59 W/kg

Wireless Router

1.18 W/kg
1.20 W/kg

Phablet

 
3.91 W/kg

Shopping information

In The Box

Charger and microUSB cable
Charger, USB Cable, Important Information Booklet
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