Samsung Galaxy J2 (2018) vs Samsung Galaxy J7 Star Specs Comparison

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

Display

Size:

5.0 inches
5.5 inches

Resolution:

960 x 540 pixels, 16:9 ratio, 220 PPI
1280 x 720 pixels, 16:9 ratio, 267 PPI

Technology:

LCD
TFT

Screen-to-body:

66.22 %
71.45 %

Features:

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

Hardware

System chip:

Qualcomm Snapdragon 425 MSM8917 (28 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:

Adreno 308
Mali-T830 MP1

RAM:

1.5GB LPDDR3
2GB LPDDR3

Internal storage:

16GB, available to use: 9.8 GB
32GB

Storage expansion:

microSDXC up to 400 GB
microSDXC up to 400 GB

Device type:

Smartphone
Smartphone

OS:

Android (8.1 Oreo), Samsung Experience UI
Android (9.0 Pie, 8.0 Oreo), Samsung One UI

Battery

Capacity:

2600 mAh
3300 mAh

Type:

Li - Ion, User replaceable
Li - Polymer, Not user replaceable

Camera

Rear:

Single camera
Single camera

Main camera:

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

Specifications:

Aperture size: F2.2; Focal length: 24 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

Front:

5 MP
13 MP

Design

Dimensions:

5.6 x 2.8 x 0.4 inches (142.2 x 71.1 x 10.2 mm)
6.03 x 3 x 0.34 inches (153.2 x 76.2 x 8.6 mm)

Weight:

5.40 oz (153.0 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:

Black
Blue

Cellular

4G (FDD):

Bands 2(1900), 4(AWS-1), 5(850), 7(2600), 66(AWS-3), 71(600)
Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 66(AWS-3), 71(600)

3G:

Bands 1(2100), 5(850), 8(900)
Bands 5(850), 4(1700/2100), 2(1900), 1(2100)

Data Speed:

LTE, HSPA, HSUPA
LTE Cat 4 (150/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

SIM type:

Nano SIM
Nano SIM

HD Voice:

Yes

Multimedia

Headphones:

3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features:

Album art cover, Background playback

Screen mirroring:

Wireless screen share
Wireless screen share

Radio:

FM

Connectivity & Features

Bluetooth:

4.2
4.2

Wi-Fi:

802.11 b, g, n; 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:

Charging, Mass storage device
Charging

Location:

GPS, A-GPS, Glonass
GPS, A-GPS, Glonass, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer
Accelerometer, Gyroscope, Compass

Other:

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

Hearing aid compatible:

M3, T4
M3, T3

Regulatory Approval

FCC approval:

Date approved:

May 10, 2018

FCC ID value:

A3LSMJ737T

Measured SAR:

Head:

1.36 W/kg

Body:

1.01 W/kg

Simultaneous Transmission:

1.58 W/kg

Wireless Router:

1.11 W/kg

Phablet:

3.60 W/kg

Buyers information

In The Box:

USB cable, Wall charging adapter, Start guide, Terms & Conditions
FCC OKs Cingular\'s purchase of AT&T Wireless