Samsung Galaxy A7 (2018) vs Samsung Galaxy A51
Display
Size
Resolution
Pixel density
Technology
Super AMOLED
Super AMOLED
Screen-to-body
74.55 %
87.37 %
Features
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor
Hardware & Performance
System chip
Samsung Exynos 7 Octa 7885
Samsung Exynos 9611
Processor
GPU
Mali-G71 MP2
Mali-G72 MP3
RAM
Internal storage
128GB
128GB
Storage expansion
microSDXC up to 512 GB
microSDXC up to 512 GB
OS
Android (9.0 Pie, 8.0 Oreo), Samsung One UI
Android (10), Samsung One UI
Battery
Capacity
3300 mAh
4000 mAh
Type
Not user replaceable
Li - Polymer, Not user replaceable
Charging
Fast charging
Camera
Rear
Triple camera
Quad camera
Main camera
Features
Phase-detection autofocus, CMOS image sensor
Phase-detection autofocus
Second camera
8 megapixels
12 megapixels
Features
Ultra-wide, Autofocus, CMOS image sensor, Back-illuminated sensor (BSI)
Ultra-wide
Third camera
5 megapixels
5 megapixels
Features
Depth information
Macro
Fourth camera
5 megapixels
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
Hyperlapse, Digital image stabilization, Video calling, Video sharing
Hyperlapse, Digital image stabilization
Front
24 megapixels
32 megapixels
Features
Flash
High Dynamic Range mode (HDR)
Design
Dimensions
Weight
the average is 6.2 oz (176 g)
the average is 6.2 oz (176 g)
Materials
Back: Glass (Corning Gorilla Glass 3); Frame: Plastic
Back: Plastic
Biometrics
Fingerprint (touch)
2D Face unlock, In-screen fingerprint
Features
Notification light
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
SIM type
Nano SIM
Nano SIM
VoLTE
Yes
Multimedia
Headphones
3.5mm jack
3.5mm jack
Features
Album art cover, Background playback, Dolby Atmos
Dolby Atmos
Connectivity & Features
Bluetooth
5.0
5.0
Wi-Fi
802.11 a, b, g, n, ac, dual-band; 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, Gyroscope, Compass, Hall (for flip covers)
Accelerometer, Gyroscope, Compass
Other
NFC, ANT+, VoIP, Tethering, Computer sync, OTA sync
NFC, ANT+
Phone features
Notifications
Haptic feedback, Music ringtones, Vibration
Other features
Voice dialing, Voice commands, Voice recording
Shopping information
In The Box
Charger, microUSB cable, Headphones, SIM Removal Tool, Documentation
