Samsung Galaxy J7 Star vs Samsung Galaxy A50

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Display

Display size

5.5 inches
6.4 inches

Resolution

720 x 1280 pixels
1080 x 2340 pixels

Pixel density

267 ppi
403 ppi

Technology

TFT
Super AMOLED

Screen-to-body ratio

71.45 %
85.24 %

Features

Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Camera

Rear

Single camera
Triple camera

Main camera

13 megapixels
25 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: 27 mm; Sensor size: 1/2.8"; Pixel size: 0.9 μm

Second camera

 
8 megapixels

Hardware Features

 
Ultra-wide

Specifications

 
Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/4"; Pixel size: 1.12 μm

Third camera

 
5 megapixels

Hardware Features

 
Depth information

Specifications

 
Aperture size: F2.2; Focal Length: 24 mm; Sensor size: 1/5"; Pixel size: 1.12 μm

Flash

LED
LED

Video recording

1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD) (30 fps), 1280x720 (HD) (240 fps)

Features

Video calling, Video sharing
Hyperlapse, Digital image stabilization, Video calling, Video sharing

Front

13 megapixels
25 megapixels

Design

Dimensions

6.03 x 3 x 0.34 inches (153.2 x 76.2 x 8.6 mm)
6.24 x 2.93 x 0.30 inches (158.5 x 74.7 x 7.7 mm)

Weight

6.38 oz (181 g)
the average is 6 oz (172 g)
5.86 oz (166 g)
the average is 6 oz (172 g)

Materials

 
Back: Plastic

Biometrics

2D Face unlock
2D Face unlock, In-screen fingerprint

Features

Touch sensitive control keys
 

Colors

Blue
Black, Pink, Blue, White

Hardware & Performance

System chip

Samsung Exynos 7 Octa 7870
Samsung Exynos 7 Octa 9610

Processor

Octa-core, 1600 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm

GPU

Mali-T830 MP1
Mali-G72 MP3

RAM

2 GB
4 GB

Internal storage

32 GB
128 GB

Maximum User Storage

 
107 GB

Storage expansion

up to 400 GB
up to 512 GB

OS

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

Battery

Capacity

3300 mAh
4000 mAh

Charging

 
Samsung Adaptive Fast Charging

Talk time

27.65 hours
the average is 23 h (1379 min)
 

Stand-by time

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

Talk time (3G)

 
23.00 hours
the average is 23 h (1387 min)

Internet use

 
 

3G

 
12 hours

LTE

 
14 hours

Wi-Fi

 
15 hours

Music playback

76.70 hours
92.00 hours

Video playback

19.00 hours
19.00 hours

Cellular

LTE (FDD)

Bands 2, 4, 5, 12, 66, 71
Bands 1, 3, 5, 7, 8, 20

LTE (TDD)

 
Bands 38, 40, 41

UMTS

850, 1700/2100, 1900, 2100 MHz
850, 900, 1900, 2100 MHz

GSM

850, 900, 1800, 1900 MHz
850, 900, 1800, 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), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM

 
Yes

SIM type

Nano SIM
Nano SIM

HD Voice

Yes
 

VoLTE

 
Yes

Connectivity

Bluetooth

4.2
5.0

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
USB Type-C (reversible)

Features

Mass storage device
Mass storage device

Mobile Payment

 
Samsung Pay

Location

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

Other

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

Phone features

Sensors

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

Notifications

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

Hearing aid compatibility

M3, T3
 

Other features

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

Multimedia

Screen mirroring

Wireless screen share
Wireless screen share

Radio

 
FM

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Headphones connector

3.5mm
3.5mm

Additional microphone(s)

 
for Noise cancellation

Regulatory Approval

FCC approval

 
 

Date approved

May 10, 2018
Feb 11, 2019

FCC ID value: A3LSMJ737T link
FCC ID value: A3LSMA505F link

FCC measured SAR

 
 

Head

1.36 W/kg
0.34 W/kg

Body

1.01 W/kg
0.45 W/kg

Simultaneous Transmission

1.58 W/kg
1.44 W/kg

Wireless Router

1.11 W/kg
1.20 W/kg

Phablet

3.60 W/kg
1.07 W/kg

Shopping information

In The Box

USB cable, Wall charging adapter, Start guide, Terms & Conditions
 

MSRP price

 
$ 350
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