Samsung Galaxy M31s vs Samsung Galaxy J7 Duo 2018

Samsung Galaxy M31s vs Samsung Galaxy J7 Duo 2018: Compare the Samsung Galaxy M31s and the Samsung Galaxy J7 Duo 2018 to find out which smartphone offers better features and performance. Discover the key differences and similarities between these two devices to make an informed decision before making a purchase.

Feature Samsung Galaxy M31s Samsung Galaxy J7 Duo 2018
Display Size 6.5 inches 5.5 inches
Display Type Super AMOLED Super AMOLED
Resolution 1080 x 2400 pixels 720 x 1280 pixels
Processor Exynos 9611 Exynos 7884
RAM 6 GB 4 GB
Internal Storage 128 GB 32 GB
Expandable Storage Yes (up to 512 GB) Yes (up to 256 GB)
Main Camera

64 MP wide (f/1.8)

12 MP ultra-wide (f/2.2)

5 MP depth (f/2.4)

5 MP macro (f/2.4)

13 MP wide (f/1.9)

5 MP depth (f/1.9)

Front Camera 32 MP wide (f/2.0) 8 MP wide (f/1.9)
Video Recording 4K@30fps, 1080p@30fps 1080p@30fps
Battery Capacity 6000 mAh 3000 mAh
Fast Charging Yes (25W) No
Operating System Android 10, One UI 2.1 Android 8.0 (Oreo)
Biometric Security Fingerprint (rear-mounted) Fingerprint (front-mounted)
Weight 203 grams 174 grams
Dimensions 159.3 x 74.4 x 9.3 mm 153.5 x 77.2 x 8.2 mm
Colors Mirage Black, Mirage Blue Black, Gold
SIM Card Dual SIM (Nano-SIM, dual stand-by) Dual SIM (Nano-SIM, dual stand-by)
Headphone Jack Yes Yes
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