Samsung Galaxy J8 vs Samsung Galaxy A51
Display
Size
Resolution
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
GPU
Adreno 506
Mali-G72 MP3
RAM
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
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
Weight
the average is 6.3 oz (179 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
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.
