Samsung Galaxy J7 Star vs Samsung Galaxy A8 Star Specs Comparison

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

Display

Size:

5.5 inches
6.3 inches

Resolution:

1280 x 720 pixels, 16:9 ratio, 267 PPI
2220 x 1080 pixels, 18.5:9 ratio, 392 PPI

Technology:

TFT
Super AMOLED

Screen-to-body:

71.45 %
80.77 %

Features:

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

Hardware

System chip:

Samsung Exynos 7 Octa 7870 (14 nm)
Qualcomm Snapdragon 660 SDM660 (14 nm)

Processor:

Octa-core, 1600 MHz, ARM Cortex-A53, 64-bit
Octa-core, 2200 MHz, Kryo 260, 64-bit

GPU:

Mali-T830 MP1
Adreno 512

RAM:

2GB LPDDR3
6GB LPDDR4

Internal storage:

32GB
64GB, available to use: 49.6 GB

Storage expansion:

microSDXC up to 400 GB
microSDXC up to 400 GB

Device type:

Smartphone
Smartphone

OS:

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

Battery

Capacity:

3300 mAh
3700 mAh

Type:

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

Charging:

Fast charging

Camera

Rear:

Single camera
Dual camera

Main camera:

13 MP (PDAF)
16 MP (PDAF)

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: 26 mm; Sensor size: 1/2.8"; Pixel size: 1.12 μm

Second camera:

24 MP (PDAF, CMOS image sensor)

Specifications:

Aperture size: F1.7; Focal Length: 26 mm; Sensor size: 1/2.8"; Pixel size: 0.9 μm

Flash:

LED
LED

Video recording:

1920x1080 (Full HD) (30 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (30 fps)

Features:

Hyperlapse, EIS, Video calling, Video sharing

Front:

13 MP
24 MP (Wide Angle)

Video capture:

1920x1080 (Full HD)

Design

Dimensions:

6.03 x 3 x 0.34 inches (153.2 x 76.2 x 8.6 mm)
6.39 x 3.03 x 0.30 inches (162.4 x 77 x 7.6 mm)

Weight:

6.38 oz (181.0 g)
6.74 oz (191.0 g)

Materials:

Back: Glass; Frame: Metal

Biometrics:

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

Features:

Touch sensitive control keys
Notification light

Keys:

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

Colors:

Blue
Black, White

Cellular

4G (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), 8(900), 12(700 a), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 26(850+), 28(700 APT)

4G (TDD):

Bands 38(2600), 40(2300), 41(2600+)

3G:

Bands 5(850), 4(1700/2100), 2(1900), 1(2100)
Bands 5(850), 8(900), 2(1900), 1(2100)

Data Speed:

LTE Cat 4 (150/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A Cat 9 (450/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM:

Shared with microSD

SIM type:

Nano SIM
Nano SIM

HD Voice:

Yes

Multimedia

Headphones:

3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features:

Dolby Atmos, Album art cover, Background playback

Screen mirroring:

Wireless screen share
Wireless screen share, MirrorLink

Radio:

FM

Additional microphone(s):

for Noise cancellation

Connectivity & Features

Bluetooth:

4.2
5.0

Wi-Fi:

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

USB:

microUSB, USB 2.0
Type-C (reversible), USB 2.0

Features:

Charging
Mass storage device, Charging

Location:

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

Sensors:

Accelerometer, Gyroscope, Compass
Accelerometer, Gyroscope

Other:

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

Hearing aid compatible:

M3, T3

Regulatory Approval

FCC approval:

Date approved:

May 10, 2018

FCC ID value:

A3LSMJ737T

Measured SAR:

Head:

1.36 W/kg
0.43 W/kg

Body:

1.01 W/kg
1.73 W/kg

Simultaneous Transmission:

1.58 W/kg

Wireless Router:

1.11 W/kg

Phablet:

3.60 W/kg

Buyers information

In The Box:

USB cable, Wall charging adapter, Start guide, Terms & Conditions
Charger, USB Type-C cable, Headphones, SIM Removal Tool, Documentation
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