Samsung Galaxy J7 Star vs Alcatel 7 Specs Comparison

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

Display

Size:

5.5 inches
6.0 inches

Resolution:

1280 x 720 pixels, 16:9 ratio, 267 PPI
2160 x 1080 pixels, 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

System chip:

Samsung Exynos 7 Octa 7870 (14 nm)
MediaTek Helio P23 MT6763T (16 nm)

Processor:

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

GPU:

Mali-T830 MP1
Mali-G71MP2

RAM:

2GB LPDDR3
2GB LPDDR4

Internal storage:

32GB
32GB

Storage expansion:

microSDXC up to 400 GB
microSDXC up to 128 GB

Device type:

Smartphone
Smartphone

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

Camera

Rear:

Single camera
Dual camera

Main camera:

13 MP (PDAF)
12 MP (PDAF)

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 MP (Depth information)

Specifications:

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

Flash:

LED
Dual LED

Video recording:

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

Features:

EIS, Video calling, Video sharing

Front:

13 MP
8 MP (Flash)

Video capture:

1920x1080 (Full HD)

Design

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 (181.0 g)
6.17 oz (175.0 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

4G (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)

3G:

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

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

SIM type:

Nano SIM
Nano SIM

HD Voice:

Yes

VoLTE:

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 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
2ACCJBT09

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

Buyers information

Price:

$ 180

In The Box:

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

Availability

Officially announced:

Aug 13, 2018
FCC OKs Cingular\'s purchase of AT&T Wireless