Compare Oppo A91 vs. Oppo A78 5G

	Oppo A91	Oppo A78 5G
Specifications
Brand	Oppo	Oppo
Model	-	-
Release Date	December 2019	January 2023
Operating System	ColorOS (Android 9.0)	ColorOS (Android 12)
Dimensions
Size	160.2 x 73.3 x 7.9 mm 6.31 x 2.89 x 0.31 in	163.8 x 75.1 x 8.0 mm 6.45 x 2.96 x 0.31 in
Weight	172 g 6.07 oz	188 g 6.63 oz
Screen
Size	6.4 inches	6.56 inches
Resolution	1,080 x 2,400 pixels	720 x 1,612 pixels
PPI	408	269
Features	OLED	90Hz
Cameras
Rear	Quad camera 48 MP f/1.8 Wide 8 MP f/2.3 Ultra Wide 2 MP f/2.4 B/W 2 MP f/2.4 Depth	Dual camera 50 MP f/1.8 Wide 2 MP f/2.4 Depth
Front	16 MP f/2.0 Wide	8 MP f/2.0 Wide
Storage
Memory	4 GB 8 GB	4 GB 8 GB
Fixed	128 GB	128 GB
Removable	microSDXC	microSDXC
Processor
Chip	MediaTek Helio P70 Octa-core processor 12 nm	MediaTek Dimensity 700 Octa-core processor 7 nm
CPU	4x 2.10 GHz Cortex-A73 4x 2.00 GHz Cortex-A53	2x 2.20 GHz Cortex-A76 6x 2.00 GHz Cortex-A55
GPU	Mali-G72 MP3	Mali-G57 MC2
Battery
Capacity	4,025 mAh	5,000 mAh
Features	Fast charging 20W	Fast charging 33W
Removable
Connectivity
5G
NFC
3.5 mm Audio Jack
Micro USB
USB Type-C
Lightning

Oppo A91	Oppo A78 5G

Released in December 2019. Features 6.4 inches screen with a resolution of 1,080 x 2,400 pixels and 408 ppi. Octa-core processor MediaTek Helio P70 with up to 8 GB memory and 128 GB storage. It has 4,025 mAh battery.	Released in January 2023. Features 6.56 inches screen with a resolution of 720 x 1,612 pixels and 269 ppi. Octa-core processor MediaTek Dimensity 700 with up to 8 GB memory and 128 GB storage. It has 5,000 mAh battery.
Head to Head
Lighter (9%) Much better quality screen (34%) OLED screen Probably more versatile rear camera	Slightly larger screen (2%) Higher screen refresh rate Much better battery capacity (20%) Battery with better fast charging (39%) It has 5G It has NFC

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