Samsung Galaxy J7 Star vs Samsung Galaxy J7 Refine

Display

Display size

5.5 inches
5.5 inches

Resolution

720 x 1280 pixels
720 x 1280 pixels

Pixel density

267 ppi
267 ppi

Technology

TFT
TFT

Screen-to-body ratio

71.45 %
71.45 %

Features

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

Camera

Rear

Single camera
Single camera

Main camera

13 megapixels
13 megapixels

Hardware Features

Phase detection autofocus
Phase detection autofocus

Specifications

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

13 megapixels
13 megapixels

Design

Dimensions

6.03 x 3 x 0.34 inches (153.2 x 76.2 x 8.6 mm)
6.03 x 3 x 0.34 inches (153.2 x 76.2 x 8.6 mm)

Weight

6.38 oz (181 g)
the average is 6 oz (172 g)
6.38 oz (181 g)
the average is 6 oz (172 g)

Biometrics

2D Face unlock
2D Face unlock

Features

Touch sensitive control keys
Touch sensitive control keys

Colors

Blue
Gold

Hardware & Performance

System chip

Samsung Exynos 7 Octa 7870
Samsung Exynos 7 Octa 7884

Processor

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

GPU

Mali-T830 MP1
Mali-T830 MP1

RAM

2 GB
2 GB

Internal storage

32 GB
32 GB

Storage expansion

up to 400 GB
up to 400 GB

OS

Android (8.0 Oreo)
Android (8.0 Oreo)

Battery

Capacity

3300 mAh
3300 mAh

Talk time

27.65 hours
the average is 23 h (1379 min)
31.00 hours
the average is 23 h (1379 min)

Stand-by time

27.9 days (670 hours)
the average is 21 days (498 h)
 

Music playback

76.70 hours
 

Video playback

19.00 hours
20.00 hours

Cellular

LTE (FDD)

Bands 2, 4, 5, 12, 66, 71
Bands 25, 26

LTE (TDD)

 
Bands 41

UMTS

850, 1700/2100, 1900, 2100 MHz
 

GSM

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

CDMA

 
800, 1900 MHz

Data

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

SIM type

Nano SIM
Nano SIM

HD Voice

Yes
Yes

Connectivity

Bluetooth

4.2
4.2

Wi-Fi

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

USB

USB 2.0
USB 2.0

Connector

microUSB
microUSB

Features

Mass storage device
Mass storage device

Location

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

Other

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

Phone features

Sensors

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope, Compass

Notifications

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

Hearing aid compatibility

M3, T3
M3, T3

Other features

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

Multimedia

Screen mirroring

Wireless screen share
Wireless screen share

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Headphones connector

3.5mm
3.5mm

Additional microphone(s)

 
Yes

Regulatory Approval

FCC approval

 
 

Date approved

May 10, 2018
May 07, 2018

FCC ID value: A3LSMJ737T link
FCC ID value: A3LSMJ737P link

FCC measured SAR

 
 

Head

1.36 W/kg
0.96 W/kg

Body

1.01 W/kg
0.76 W/kg

Simultaneous Transmission

1.58 W/kg
1.59 W/kg

Wireless Router

1.11 W/kg
1.20 W/kg

Phablet

3.60 W/kg
3.91 W/kg

Shopping information

In The Box

USB cable, Wall charging adapter, Start guide, Terms & Conditions
Charger, USB Cable, Important Information Booklet
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