Samsung Galaxy M21 vs Oppo A91

Samsung Galaxy M21 vs Oppo A91: Comparing the Samsung Galaxy M21 and Oppo A91, two popular smartphones in the market, to help you make an informed choice. Discover the key differences and similarities between these devices in terms of design, performance, camera capabilities, and more.

Feature	Samsung Galaxy M21	Oppo A91
Display	6.4-inch Super AMOLED	6.4-inch AMOLED
Resolution	2340 x 1080 pixels	2400 x 1080 pixels
Processor	Exynos 9611	MediaTek Helio P70
RAM	4/6 GB	8 GB
Storage	64/128 GB	128 GB
Main Camera	48 MP wide (f/2.0) 8 MP ultra-wide (f/2.2) 5 MP depth sensor (f/2.2)	48 MP wide (f/1.8) 8 MP ultra-wide (f/2.2) 2 MP depth sensor (f/2.4) 2 MP macro (f/2.4)
Front Camera	20 MP (f/2.0)	16 MP (f/2.0)
Battery Capacity	6000 mAh	4025 mAh
Operating System	Android 10, One UI 2.0	Android 9, ColorOS 6.1
Charging	15W fast charging	Fast charging (VOOC 3.0)
Security	Rear-mounted fingerprint sensor	In-display fingerprint sensor
Dimensions	159 x 75.1 x 8.9 mm	160.2 x 73.3 x 7.9 mm
Weight	188 grams	172 grams
SIM Card	Dual SIM (Nano-SIM, dual stand-by)	Dual SIM (Nano-SIM, dual stand-by)
Expandable Storage	Yes, up to 512 GB	Yes, up to 256 GB
Headphone Jack	Yes	Yes
Connectivity	4G LTE Wi-Fi 802.11 a/b/g/n/ac Bluetooth 5.0 GPS	4G LTE Wi-Fi 802.11 a/b/g/n/ac Bluetooth 5.0 GPS