Samsung Galaxy A3 (2017) vs Samsung Galaxy J3 (2018)

Display

Display size

4.7 inches
5.0 inches

Resolution

720 x 1280 pixels
720 x 1280 pixels

Pixel density

312 ppi
294 ppi

Technology

Super AMOLED
TFT

Screen-to-body ratio

67.85 %
68.87 %

Features

Ambient light sensor, Proximity sensor
Proximity sensor

Camera

Rear

Single camera
Single camera

Main camera

13 megapixels
8 megapixels

Hardware Features

Autofocus, CMOS image sensor
Autofocus, Back-illuminated sensor (BSI)

Specifications

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

8 megapixels
5 megapixels

Design

Dimensions

5.33 x 2.61 x 0.31 inches (135.4 x 66.2 x 7.9 mm)
5.62 x 2.76 x 0.35 inches (142.7 x 70.1 x 8.9 mm)

Weight

4.87 oz (138 g)
the average is 6 oz (172 g)
5.36 oz (152 g)
the average is 6 oz (172 g)

Materials

Back: Glass; Frame: Aluminum
Back: Plastic

Resistance

Water, Dust
 

IP certified

IP 68
 

Biometrics

Fingerprint (touch)
 

Features

Touch sensitive control keys
Touch sensitive control keys

Colors

Black, Gold, Pink, Blue
Silver

Hardware & Performance

System chip

Samsung Exynos 7 Octa 7870
Samsung Exynos 7 Quad 7570

Processor

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

GPU

Mali-T830 MP2
Mali-T720 MP1

RAM

2 GB
2 GB

Internal storage

16 GB
16 GB

Maximum User Storage

9.7 GB
 

Storage expansion

up to 256 GB
up to 400 GB

OS

Android (7.0 Nougat, 6.0 Marshmallow)
Android (8.0 Oreo)

Battery

Capacity

2350 mAh
2600 mAh

Talk time

 
18.70 hours
the average is 23 h (1396 min)

Stand-by time

 
18.0 days (432 hours)
the average is 21 days (503 h)

Talk time (3G)

17.00 hours
the average is 23 h (1387 min)
 

Internet use

 
 

3G

12 hours
 

LTE

16 hours
 

Wi-Fi

17 hours
 

Music playback

41.00 hours
63.00 hours

Video playback

17.00 hours
15.00 hours

Cellular

LTE (FDD)

Bands 1, 2, 3, 5, 7, 8, 20
Bands 2, 3, 4, 5, 7, 12, 14

LTE (TDD)

Bands 40
 

UMTS

850, 900, 1900, 2100 MHz
850, 1900, 2100 MHz

GSM

850, 900, 1800, 1900 MHz
850, 900, 1800, 1900 MHz

Data

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

SIM type

Nano SIM
Nano SIM

HD Voice

 
Yes

Connectivity

Bluetooth

4.2
4.2

Wi-Fi

802.11 a, b, g, n, ac, dual-band
802.11 b, g, n

USB

Yes
USB 2.0

Connector

USB Type-C (reversible)
microUSB

Features

Mass storage device, USB charging
Mass storage device

Mobile Payment

Samsung Pay
 

Location

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

Other

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

Phone features

Sensors

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

Notifications

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

Hearing aid compatibility

 
M3, T3

Other features

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

Multimedia

Screen mirroring

Wireless screen share
Wireless screen share

Radio

FM
FM

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Headphones connector

3.5mm
3.5mm

Regulatory Approval

FCC approval

 
 

Date approved

Dec 21, 2016
Apr 04, 2018

FCC ID value: A3LSMA320F link
FCC ID value: A3LSMJ337A link

FCC measured SAR

 
 

Head

0.45 W/kg
1.22 W/kg

Body

0.74 W/kg
1.02 W/kg

Simultaneous Transmission

1.56 W/kg
1.56 W/kg

Wireless Router

0.94 W/kg
1.18 W/kg

Shopping information

In The Box

 
Charger and microUSB cable
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