Samsung Galaxy J7 Perx vs Samsung Galaxy S8

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Display

Display size

5.5 inches
5.8 inches

Resolution

720 x 1280 pixels
1440 x 2960 pixels

Pixel density

267 ppi
570 ppi

Technology

TFT
Super AMOLED

Screen-to-body ratio

73.03 %
84.26 %

Features

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

Camera

Rear

Single camera
Single camera

Main camera

8 megapixels
12 megapixels

Hardware Features

Autofocus, CMOS image sensor
Optical image stabilization, Phase detection autofocus

Specifications

 
Aperture size: F1.7; Focal length: 26 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm

Flash

LED
LED

Video recording

1920x1080 (Full HD) (30 fps)
3840x2160 (4K UHD) (30 fps), 2560x1440 (QHD), 1920x1080 (Full HD) (60 fps), 1280x720 (HD) (240 fps)

Features

Video calling, Video sharing
High Dynamic Range mode (HDR), Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, Video light, Digital image stabilization, Video calling, Video sharing

Front

5 megapixels
8 megapixels

Features

 
Wide Angle, Autofocus, High Dynamic Range mode (HDR)

Design

Dimensions

5.9 x 3 x 0.3 inches (149.9 x 76.2 x 7.6 mm)
5.86 x 2.68 x 0.31 inches (148.9 x 68.1 x 8.0 mm)

Weight

5.90 oz (167 g)
the average is 6.1 oz (173 g)
5.47 oz (155 g)
the average is 6.1 oz (173 g)

Materials

 
Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum

Resistance

 
Water, Dust; IP 68

Biometrics

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

Features

Touch sensitive control keys
 

Colors

Black
Black, Gold, Silver, Purple, Pink, Blue

Multimedia

Headphones

3.5 mm jack
3.5 mm jack

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features

Album art cover, Background playback
Album art cover, Background playback

Screen mirroring

Wireless screen share
DLNA, Wireless screen share, MHL

Radio

FM
 

Additional microphone(s)

 
for Noise cancellation, Video recording

Hardware & Performance

System chip

Qualcomm Snapdragon 625 8953
Qualcomm Snapdragon 835 MSM8998

Processor

Octa-core, 2200 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2350 MHz, Kryo 280, 64-bit, 10 nm

GPU

Adreno 506
Adreno 540

RAM

2 GB
4 GB

Internal storage

16 GB
64 GB

Storage expansion

microSDXC up to 128 GB
microSDXC up to 256 GB

OS

Android (7.0 Nougat)
Android (9.0 Pie, 8.0 Oreo, 7.0 Nougat), Samsung One UI

Connectivity & Features

Bluetooth

4.2
5.0, EDR

Wi-Fi

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

USB

microUSB, USB 2.0
USB Type-C (reversible), USB 3.1

Features

Mass storage device, USB charging
Mass storage device, Video out

Location

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

Sensors

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

Mobile Payment

 
Samsung Pay

Other

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

Cellular

LTE (FDD)

Bands 2, 4, 5, 12, 25, 26
Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 66

LTE (TDD)

Bands 41
Bands 38, 39, 40, 41

UMTS

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

Data

LTE, HSPA, UMTS
LTE-A Pro Cat 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS

SIM type

 
Nano SIM

HD Voice

Yes
Yes

Battery

Capacity

3300 mAh
3000 mAh

Type

Li - Ion, User replaceable
Li - Ion, Not user replaceable

Charging

 
Qualcomm Quick Charge 2.0, Qi and Powermat wireless charging

Talk time

40.00 hours
the average is 21 h (1250 min)
30.00 hours
the average is 21 h (1250 min)

Stand-by time

 
13.4 days (321 hours)
the average is 21 days (493 h)

Internet use

3G: 14 hours; LTE: 16 hours; Wi-Fi: 18 hours
3G: 12 hours; LTE: 14 hours; Wi-Fi: 14 hours

Music playback

156.00 hours
88.00 hours

Video playback

17.00 hours
17.00 hours

Phone features

Notifications

Haptic feedback
Haptic feedback

Other features

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

Regulatory Approval

FCC approval

 
 

Date approved

Aug 01, 2017
Apr 06, 2017

FCC ID value: A3LSMJ727P link
FCC ID value: A3LSMG950U link

FCC measured SAR

 
 

Head

0.65 W/kg
0.49 W/kg

Body

0.17 W/kg
0.48 W/kg

Simultaneous Transmission

1.59 W/kg
1.53 W/kg

Wireless Router

0.59 W/kg
0.46 W/kg

Phablet

3.99 W/kg
 
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