Difference between OPPO A15 and VIVO Y20G ?

	PRODUCT 1	PRODUCT 2
	OPPO OPPO A15	VIVO VIVO Y20G
VERSION
Announced	2020	2021
Release date	2020	2021
NETWORK
Technology	GSM / HSPA / LTE	GSM / HSPA / LTE
DEVICE
Dimensions	164 x 75.4 x 7.9 mm (6.46 x 2.97 x 0.31 in)	164.4 x 76.3 x 8.4 mm (6.47 x 3.00 x 0.33 in)
Weight	175 (g6.17 oz) ☺	192.3 (g6.77 oz)
S.I.M.	Dual SIM / Double SIM	Dual SIM
Design	5 MP ↓	8 MP
Other
SCREEN
langfront.Type	IPS LCD	IPS LCD
Size	6.52 inches	6.51 inches
Resolution	720 x 1600 pixels ↓	720 x 1600 pixels
Protection

PLATFORM
Operating system	Android 10,ColorOS 7.2,	Android 10,Funtouch 11,
Chipset	Mediatek MT6765 Helio P35 (12nm)	Mediatek Helio G80 (12nm)
Processor	Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)	Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU	PowerVR GE8320	Mali-G52 MC2
MEMORY
Card slot	microSDXC	microSDXC
Internal & RAM	32GB 2GB RAM, 32GB 3GB RAM ↓	128GB 6GB RAM
CAMERA
Main	13 MP + 2 MP + 2 MP ↓	13 MP + 2 MP + 2 MP
SOUND
Loudspeaker	✔️	✔️
Jack 3,5 mm	Yes / Oui ♥	✔️
CONNECTIVITY
Wifi	✔️	✔️
Bluetooth	✔️	✔️
GPS	✔️	✔️
NFC	❌	❌
Radio	FM Radio ☺	FM Radio
USB	microUSB 2.0	microUSB 2.0
CHARACTERISTICS
Sensors	Fingerprint (rear-mounted),accelerometer,proximity,compass / Fingerprint (rear mounted),	Fingerprint (side-mounted),accelerometer,proximity,compass / Fingerprint (side mounted),accelerometer,proximity,compass,
Various	Fast Charging 10W / Fast battery charge 10W	Fast Charging 18W / Fast battery charge 18W
BATTERY
Type	4230 mAh ☺	5000 mAh

What is the difference between OPPO A15 and VIVO Y20G ?