Samsung Galaxy A31 vs Samsung Galaxy J7 Duo 2018

Samsung Galaxy A31 vs Samsung Galaxy J7 Duo 2018: The Samsung Galaxy A31 and Samsung Galaxy J7 Duo 2018 are two popular smartphones from Samsung. In this article, we will compare their features, performance, and specifications to help you make an informed decision. Let’s dive in and see how these two devices stack up against each other.

Feature	Samsung Galaxy A31	Samsung Galaxy J7 Duo 2018
Display Size	6.4 inches	5.5 inches
Display Type	Super AMOLED	Super AMOLED
Resolution	1080 x 2400 pixels	720 x 1280 pixels
Processor	Octa-core (2×2.0 GHz Cortex-A75 & 6×1.7 GHz Cortex-A55)	Octa-core (2×2.2 GHz Cortex-A73 & 6×1.6 GHz Cortex-A53)
RAM	4 GB	4 GB
Internal Storage	64 GB / 128 GB	32 GB
Expandable Storage	Yes (up to 512 GB)	Yes (up to 256 GB)
Main Camera	48 MP (f/2.0) + 8 MP (f/2.2) + 5 MP (f/2.4) + 5 MP (f/2.4)	13 MP (f/1.9) + 5 MP (f/1.9)
Front Camera	20 MP (f/2.2)	8 MP (f/1.9)
Video Recording	1080p@30fps	1080p@30fps
Battery Capacity	5000 mAh	3000 mAh
Operating System	Android 10, One UI 2.0	Android 8.0 (Oreo)
Dimensions	159.3 x 73.1 x 8.6 mm	153.5 x 77.2 x 8.2 mm
Weight	185 g	174 g
Biometric Authentication	Fingerprint (under display, optical)	Fingerprint (front-mounted)
Colors	Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White	Black, Gold
SIM Card	Dual SIM (Nano-SIM, dual stand-by)	Dual SIM (Nano-SIM, dual stand-by)
Headphone Jack	Yes	Yes
USB	USB Type-C	Micro USB