Oppo A91 vs Samsung Galaxy S21 Ultra

Oppo A91 vs Samsung Galaxy S21 Ultra: In this article, we will compare the Oppo A91 and the Samsung Galaxy S21 Ultra, two highly popular smartphones in the market. We will delve into their key features, specifications, and performance to help you make an informed decision when choosing between these two devices.

Feature	Oppo A91	Samsung Galaxy S21 Ultra
Battery Life	4000 mAh	5000 mAh
RAM	8 GB	12/16 GB
Storage	128 GB	128/256/512 GB, 1 TB
Main Camera	48 MP wide (f/1.8) 8 MP ultrawide (f/2.2) 2 MP depth (f/2.4) 2 MP macro (f/2.4)	108 MP wide (f/1.8) 12 MP ultrawide (f/2.2) 10 MP periscope telephoto (f/4.9) 10 MP telephoto (f/2.4)
Front Camera	16 MP (f/2.0)	40 MP (f/2.2)
Video Recording	4K @ 30fps	8K @ 24fps
Battery Capacity	4000 mAh	5000 mAh
Display	6.4 inches AMOLED	6.8 inches Dynamic AMOLED
Display Resolution	2400 x 1080 pixels	3200 x 1440 pixels
Processor	Mediatek MT6771V Helio P70	Exynos 2100 (Global)
MicroSD Support	Yes (dedicated slot)	No
Fast Charging	VOOC Flash Charge 3.0 (20W)	25W
Wireless Charging	No	Yes (Qi compatible)
SIM Card	Dual SIM (Nano-SIM, dual stand-by)	Dual SIM (Nano-SIM, dual stand-by)
5G Support	No	Yes
Fingerprint Sensor	In-display optical	In-display ultrasonic
Operating System	Android (ColorOS)	Android (One UI)