Oppo A91 vs Samsung Galaxy M31

Oppo A91 vs Samsung Galaxy M31: Looking to compare Oppo A91 and Samsung Galaxy M31? In this article, we’ll break down the key features and differences between these two popular smartphones. Discover which device offers a better camera, faster performance, longer battery life, and more. Read on to make an informed decision before purchasing your next smartphone.

Feature Oppo A91 Samsung Galaxy M31
Display Size 6.4 inches 6.4 inches
Display Type AMOLED Super AMOLED
Resolution 1080 x 2400 pixels 1080 x 2340 pixels
Processor Mediatek MT6771V Helio P70 Exynos 9611
RAM 8 GB 6 GB
Storage 128 GB 64/128 GB
Main Camera

48 MP (f/1.8)

8 MP (f/2.2)

2 MP (f/2.4)

2 MP (f/2.4)

64 MP (f/1.8)

8 MP (f/2.2)

5 MP (f/2.2)

5 MP (f/2.4)

Front Camera 16 MP (f/2.0) 32 MP (f/2.0)
Battery Capacity 4025 mAh 6000 mAh
Fast Charging VOOC Flash Charge 3.0 15W Fast Charging
Operating System Android 9.0 (Pie), ColorOS 6.1 Android 10, One UI 2.0
Fingerprint Sensor In-display Rear-mounted
Face Unlock Yes Yes
Headphone Jack Yes Yes
MicroSD Slot Yes (up to 256 GB) Yes (dedicated slot, up to 512 GB)
SIM Card Dual SIM (Nano-SIM, dual stand-by) Dual SIM (Nano-SIM, dual stand-by)
Weight 172 g 191 g
Dimensions 160.2 x 73.3 x 7.9 mm 159.2 x 75.1 x 8.9 mm
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