Difference between OPPO RENO Z and VIVO Y20 2021 ?

	PRODUCT 1	PRODUCT 2
	OPPO OPPO RENO Z	VIVO VIVO Y20 2021
VERSION
Announced	2019	2020
Release date	2019	2021
NETWORK
Technology		GSM / HSPA / LTE
DEVICE
Dimensions	157.3 x 74.9 x 9.1 mm	164.4 x 76.3 x 8.4 mm (6.47 x 3.00 x 0.33 in)
Weight	186 g	192 (g6.77 oz)
S.I.M.	Double SIM	Dual SIM
Design	32MP	8 MP
Other	HDR 10
SCREEN
langfront.Type		IPS LCD
Size	6.4 inches	6.51 inches
Resolution	1080 x 2340 pixels	720 x 1600 pixels
Protection

PLATFORM
Operating system	Android 9.0 (Pie); ColorOS 6	Android 10,Funtouch 11,
Chipset	Mediatek MT6779 Helio P90 (12nm)	Mediatek MT6765 Helio P35 (12nm)
Processor	Octa-core (2x2.2 GHz Cortex-A75 & 6x2.0 GHz Cortex-A55)	Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
GPU	PowerVR GM9446	PowerVR GE8320
MEMORY
Card slot	❌	microSDXC
Internal & RAM	128/256 GB, 6 GB RAM	64GB 4GB RAM
CAMERA
Main	48 MP + 5 MP	13 MP + 2 MP + 2 MP
SOUND
Loudspeaker	✔️	✔️
Jack 3,5 mm	✔️	✔️
CONNECTIVITY
Wifi	✔️	✔️
Bluetooth	✔️	✔️
GPS	✔️	✔️
NFC	✔️	❌
Radio	❌	FM Radio
USB	Type-C 1.0	microUSB 2.0
CHARACTERISTICS
Sensors	Fingerprint (under display),accelerometer,gyroscope,proximity,compass,	Fingerprint (side-mounted),accelerometer,gyro,proximity,compass / Fingerprint (lateral),
Various	20W fast battery charging	Fast Charging 10W / Fast battery charge 10W
BATTERY
Type	4035 mAh	5000 mAh

What is the difference between OPPO RENO Z and VIVO Y20 2021 ?