Samsung Galaxy J8 vs Samsung Galaxy A51

$289.00 VIEW ON AMAZON $443.80 VIEW ON eBay
$304.99 VIEW ON eBay

Display

Size

6.0 inches
6.5 inches

Resolution

1480 x 720 pixels, 18.5:9 ratio,
274 PPI
2400 x 1080 pixels, 20:9 ratio,
405 PPI

Technology

Super AMOLED
Super AMOLED

Screen-to-body

75.79 %
87.37 %

Features

Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware & Performance

System chip

Qualcomm Snapdragon 450 SDM450
Samsung Exynos 9611

Processor

Octa-core, 1800 MHz, ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm

GPU

Adreno 506
Mali-G72 MP3

RAM

4GB
4GB

Internal storage

64GB
128GB

Storage expansion

microSDXC up to 256 GB
microSDXC up to 512 GB

OS

Android (8.0 Oreo), Samsung TouchWiz UI
Android (10), Samsung One UI

Battery

Capacity

3500 mAh
4000 mAh

Type

Not user replaceable
Li - Polymer, Not user replaceable

Charging

 
Fast charging

Camera

Rear

Dual camera
Quad camera

Main camera

16 MP
48 MP

Features

PDAF, CCD image sensor
PDAF

Second camera

5 MP
12 MP

Features

Depth information
Ultra-wide

Third camera

 
5 MP

Features

 
Macro

Fourth camera

 
5 MP

Features

 
Depth information

Video recording

1920x1080 (Full HD) (30 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)

Features

Video calling, Video sharing
Hyperlapse, EIS

Front

16 MP
32 MP

Features

Flash, HDR
HDR

Design

Dimensions

6.27 x 2.98 x 0.32 inches (159.2 x 75.7 x 8.2 mm)
6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)

Weight

6.24 oz (177 g)
the average is 6.3 oz (179 g)
6.07 oz (172 g)
the average is 6.3 oz (179 g)

Materials

Back: Plastic
Back: Plastic; Frame: Plastic

Biometrics

2D Face unlock, Fingerprint (touch)
2D Face unlock, In-screen fingerprint

Colors

Black, Gold, Pink, Blue
Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue

Cellular

LTE (FDD)

Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3)

LTE (TDD)

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

UMTS

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

Data Speed

LTE-A Cat 6 (300/50 Mbit/s), HSPA, HSUPA
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM

Yes
Yes

SIM type

Nano SIM
Nano SIM

Multimedia

Headphones

3.5mm jack
3.5mm jack

Features

Album art cover, Background playback, Dolby Atmos
Dolby Atmos

Connectivity & Features

Bluetooth

4.2
5.0

Wi-Fi

802.11 b, g, n; Hotspot, Wi-Fi Direct
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

Mass storage device, Charging
Charging, OTG

Sensors

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

Other

ANT+, VoIP, Tethering, Computer sync, OTA sync
NFC, ANT+

Phone features

Notifications

Haptic feedback, Music ringtones, Vibration, Flight mode, Silent mode, Speakerphone
 

Other features

Voice dialing, Voice commands, Voice recording
 

Shopping information

In The Box

Charger, microUSB cable, Documentation, Quick Start Guide, Headphones and SIM removal tool.
 
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.
FCC OKs Cingular's purchase of AT&T Wireless