Samsung Galaxy J7 Star vs Alcatel 3V (2019)

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Display

Size

5.5 inches
6.7 inches

Resolution

720 x 1280 pixels
720 x 1440 pixels

Aspect Ratio

16:9
18:9

Pixel density

267 PPI
240 PPI

Technology

TFT
IPS LCD

Screen-to-body

71.45 %
79.69 %

Features

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

Hardware & Performance

System chip

Samsung Exynos 7 Octa 7870
MediaTek Helio P22 MT6762

Processor

Octa-core, 1600 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2000 MHz, ARM Cortex-A53, 64-bit, 12 nm

GPU

Mali-T830 MP1
IMG PowerVR GE8320

RAM

2GB LPDDR3
3GB

Internal storage

32GB
32GB

Available to use

 
23 GB

Storage expansion

microSDXC up to 400 GB
microSDHC up to 32 GB

Device type

Smart phone
Smart phone

OS

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

Battery

Capacity

3300 mAh
4000 mAh

Type

Li - Polymer, Not user replaceable
Not user replaceable

Charging

 
MediaTek Pump Express

Talk time

27.65 hours
the average is 19 h (1111 min)
25.00 hours
the average is 19 h (1111 min)

Stand-by time

27.9 days (670 hours)
the average is 21 days (511 h)
20.8 days (500 hours)
the average is 21 days (511 h)

Talk time (3G)

 
24.00 hours
the average is 23 h (1399 min)

Stand-by time (3G)

 
20.8 days (500 hours)
the average is 27 days (645 h)

Talk time (4G)

 
24 hours

Stand-by time (4G)

 
16.7 days (400 hours)
the average is 25 days (590 h)

Music playback

76.70 hours
 

Video playback

19.00 hours
8.00 hours

Camera

Rear

Single camera
Dual camera

Main camera

13 megapixels
16 megapixels

Features

Phase-detection autofocus
Autofocus

Specifications

Aperture size: F1.7; Focal length: 28 mm; Sensor size: 1/3.06"; Pixel size: 1.12 μm
 

Second camera

 
5 megapixels

Features

 
Depth information

Flash

LED
LED

Software Features

HDR, Panorama, Face detection, Burst mode, Night mode, Exposure compensation, ISO control, White balance presets, Touch to focus, Self-timer, Digital zoom, Geo tagging
Scenes, Touch to focus, Digital zoom, Geo tagging

Video recording

1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD) (30 fps)

Front

13 megapixels
8 megapixels

Video capture

 
1920x1080 (Full HD) (30 fps)

Design

Form factor

Candybar
Candybar

Dimensions

6.03 x 3 x 0.34 inches (153.2 x 76.2 x 8.6 mm)
6.87 x 3.28 x 0.33 inches (174.5 x 83.3 x 8.4 mm)

Weight

6.38 oz (181 g)
the average is 6.2 oz (176 g)
6.98 oz (198 g)
the average is 6.2 oz (176 g)

Biometrics

2D Face unlock
2D Face unlock, Fingerprint (touch)

Features

Touch sensitive control keys
 

Keys

Left: Volume control; Right: Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors

Blue
Elegant black

Cellular

LTE (FDD)

Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 66(AWS-3), 71(600)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 13(700 c), 20(800 DD), 25(1900+), 26(850+), 66(AWS-3), 71(600)

LTE (TDD)

 
Bands 41(2600+)

UMTS

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

GSM

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

Data Speed

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

2G Data

EDGE, GPRS
EDGE, GPRS

SIM type

Nano SIM
Nano SIM

HD Voice

Yes
Yes

VoLTE

 
Yes

Global Roaming

Yes
Yes

Multimedia

Headphones

3.5mm jack
3.5mm jack

Speakers

Earpiece, Loudspeaker
Earpiece, Multiple speakers

Screen mirroring

Wireless screen share
Wireless screen share

Additional microphone(s)

 
for Noise cancellation

Connectivity & Features

Bluetooth

4.2
4.2

Profiles/ Protocols

Advanced Audio Distribution (A2DP), Audio/Visual Remote Control Profile (AVRCP), Generic Access (GAP), Handsfree (HFP), Headset (HSP), Message Access Profile (MAP), Object Push (OPP), Phone Book Access (PBAP)
Advanced Audio Distribution (A2DP), Audio/Visual Remote Control Profile (AVRCP), Generic Access (GAP), Handsfree (HFP), Headset (HSP), Message Access Profile (MAP), Object Push (OPP), Phone Book Access (PBAP)

Wi-Fi

802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
802.11 a, b, g, n; Wi-Fi Direct, Hotspot

USB

microUSB, USB 2.0
Type-C (reversible)

Features

Charging
Charging

Location

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

Sensors

Accelerometer, Gyroscope, Compass
Accelerometer, Compass

Other

NFC, ANT+, UMA (Wi-Fi Calling)
UMA (Wi-Fi Calling), Infrared

Hearing aid compatible

M3, T3
M3, T3

Regulatory Approval

FCC approval

 
 

Date approved

May 10, 2018
Sep 23, 2019

FCC ID value: A3LSMJ737T link
FCC ID value: 2ACCJB111 link

Measured SAR

 
 

Head

1.36 W/kg
0.73 W/kg

Body

1.01 W/kg
1.37 W/kg

Simultaneous Transmission

1.58 W/kg
1.58 W/kg

Wireless Router

1.11 W/kg
1.35 W/kg

Phablet

3.60 W/kg
 

Shopping information

In The Box

USB cable, Wall charging adapter, Start guide, Terms & Conditions
Quick start guide, Charger head, Data cable

Availability

Officially announced

 
Nov 08, 2019
This copy is for your personal, non-commercial use only. You can order presentation-ready copies for distribution to your colleagues, clients or customers at https://www.parsintl.com/phonearena or use the Reprints & Permissions tool that appears at the bottom of each web page. Visit https://www.parsintl.com/ for samples and additional information.
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