Difference between VIVO Y15A and OPPO A83 ?

	PRODUCT 1	PRODUCT 2
	VIVO VIVO Y15A	OPPO OPPO A83
VERSION
Announced	November 2021
Release date	November 2021	2018
NETWORK
Technology	4G
DEVICE
Dimensions
Weight	179 (g6.31 oz)
S.I.M.	Dual SIM
Design	8 MP
Other
SCREEN
langfront.Type	IPS LCD
Size	6.51 inches	5.7 inches - 720 x 1440 pixels
Resolution	720 x 1600 pixels
Protection

PLATFORM
Operating system	Android 11,Funtouch 11.1,	Android 7.1 (Nougat)
Chipset	Mediatek MT6765 Helio P35 (12nm)
Processor	Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)	Octa-core 2.5 GHz Cortex-A53
GPU	PowerVR GE8320
MEMORY
Card slot	microSDXC
Internal & RAM	64GB 4GB RAM	64/32 GB, 4 GB RAM or 32 GB, 3 GB RAM or 16 GB, 2 GB RAM
CAMERA
Main	13 MP + 2 MP	13 MP - Selfie 8 MP
SOUND
Loudspeaker	✔️
Jack 3,5 mm	✔️
CONNECTIVITY
Wifi	✔️
Bluetooth	5.0
GPS	GPA,A-GPS,GLONASS,GALILEO,BDS,
NFC	❌
Radio	FM Radio
USB	microUSB 2.0
CHARACTERISTICS
Sensors	Fingerprint (side-mounted),accelerometer,proximity,compass / Fingerprint (side mounted),accelerometer,proximity,compass,
Various	Fast Charging 10W - Reverse charging 5W / Fast battery charge 10W - Reverse charging 5W
BATTERY
Type	5000 mAh	3180 mAh

What is the difference between VIVO Y15A and OPPO A83 ?