Samsung Galaxy J7 Star vs Alcatel 7

$134.99 VIEW ON eBay
$99.99 VIEW ON eBay

Display

Display size

5.5 inches
6.0 inches

Resolution

720 x 1280 pixels
1080 x 2160 pixels

Aspect Ratio

16:9
 

Pixel density

267 ppi
402 ppi

Technology

TFT
LCD

Screen-to-body

71.45 %
76.51 %

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 P23 MT6763T

Processor

Octa-core, 1600 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2300 MHz, ARM Cortex-A53, 64-bit, 16 nm

GPU

Mali-T830 MP1
Mali-G71MP2

RAM

2 GB LPDDR3
2 GB LPDDR4

Internal storage

32 GB
32 GB

Storage expansion

microSDXC up to 400 GB
microSDXC up to 128 GB

Device type

Smart phone
Smart phone

OS

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

Battery

Capacity

3300 mAh
4000 mAh

Type

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

Charging

 
MediaTek Pump Express

Talk time

27.65 hours
the average is 18 h (1096 min)
 

Stand-by time

27.9 days (670 hours)
the average is 20 days (489 h)
 

Talk time (3G)

 
28.00 hours
the average is 24 h (1418 min)

Stand-by time (3G)

 
29.2 days (700 hours)
the average is 27 days (637 h)

Music playback

76.70 hours
 

Video playback

19.00 hours
10.50 hours

Camera

Rear

Single camera
Dual camera

Main camera

13 megapixels
12 megapixels

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: F2.2; Focal length: 27 mm; Sensor size: 1/2.8"; Pixel size: 1.25 μm

Second camera

 
2 megapixels

Features

 
Depth information

Specifications

 
Aperture size: F2.4; Sensor size: 1/5"; Pixel size: 1.75 μm

Flash

LED
Dual 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
Face detection, Touch to focus, Digital zoom, Geo tagging

Video recording

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

Features

 
Digital image stabilization, Video calling, Video sharing

Front

13 megapixels
8 megapixels

Features

 
Flash

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)
6.38 x 2.95 x 0.34 inches (162.1 x 74.9 x 8.6 mm)

Weight

6.38 oz (181 g)
the average is 6.1 oz (174 g)
6.17 oz (175 g)
the average is 6.1 oz (174 g)

Materials

 
Back: Glass

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
Black

Cellular

LTE (FDD)

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

UMTS

850, 1700/2100, 1900, 2100 MHz
850, 1700/2100, 1900 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-A Cat 6 (300/50 Mbit/s), HSPA, HSUPA, UMTS

2G Data

EDGE, GPRS
EDGE, GPRS

SIM type

Nano SIM
Nano SIM

HD Voice

Yes
 

VoLTE

 
Yes

Global Roaming

Yes
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

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, dual-band; Wi-Fi Direct

USB

microUSB, USB 2.0
Type-C (reversible)

Features

Charging
Mass storage device, Charging

Location

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

Sensors

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

Other

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

Hearing aid compatible

M3, T3
M4, T3

Regulatory Approval

FCC approval

 
 

Date approved

May 10, 2018
May 25, 2018

FCC ID value: A3LSMJ737T link
FCC ID value: 2ACCJBT09 link

Measured SAR

 
 

Head

1.36 W/kg
1.03 W/kg

Body

1.01 W/kg
1.10 W/kg

Simultaneous Transmission

1.58 W/kg
1.57 W/kg

Wireless Router

1.11 W/kg
1.18 W/kg

Phablet

3.60 W/kg
 

Shopping information

In The Box

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

MSRP price

 
$ 180

Availability

Officially announced

 
Aug 13, 2018
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