Difference between VIVO Y3S (2021) and OPPO A77S ? in countries.United States

	PRODUCT 1	PRODUCT 2
	VIVO VIVO Y3S (2021)	OPPO OPPO A77S
VERSION
Announced	October 2021	October 2022
Release date	October 2021	October 2022
NETWORK
Technology	4G	4G
DEVICE
Dimensions	164.4 x 76.3 x 8.4 mm (6.47 x 3.00 x 0.33 in)	163.8 x 75 x 8 mm (6.45 x 2.95 x 0.31 in)
Weight	190 (g6.70 oz)	187 g / 190 g
S.I.M.	Dual SIM
Design	5 MP	8 MP (1080p@30fps)
Other		IP54,dust and water resistant,
SCREEN
langfront.Type	IPS LCD	IPS LCD,90Hz,
Size	6.51 inches	6.56 inches
Resolution	720 x 1600 pixels	720 x 1612 pixels
Protection

PLATFORM
Operating system	Android 11 (Go edition),Funtouch 11,	Android 12,ColorOS 12.1,
Chipset	Mediatek MT6765 Helio P35 (12nm)	Qualcomm SM6225 Snapdragon 680 4G (6nm)
Processor	Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)	Octa-core (4x2.4 GHz Kryo 265 Gold & 4x1.9 GHz Kryo 265 Silver)
GPU	PowerVR GE8320	Adreno 610
MEMORY
Card slot	microSDXC	microSDXC
Internal & RAM	32GB 2GB RAM	128GB 8GB RAM
CAMERA
Main	13 MP	50 MP (f/1.8) + 2 MP (f/1.8)
SOUND
Loudspeaker	✔️	Yes, with stereo speakers
Jack 3,5 mm	✔️	✔️
CONNECTIVITY
Wifi	Wi-Fi 802.11	dual-band,Wi-Fi Direct,hotspot,
Bluetooth	5.0	5.0
GPS	A-GPS,GLONASS,GALILEO,BDS,	✔️
NFC	❌	✔️
Radio	FM Radio	❌
USB	USB Type-C 2.0	USB Type-C 2.0
CHARACTERISTICS
Sensors	Accelerometer,proximity,compass / Accelerometer,proximity,compass,	Fingerprint (side-mounted),accelerometer,proximity,compass,
Various	Fast charging 10W - Reverse charging 5W / Fast charging 10W - Reverse charging 5W	Fast charging 33W
BATTERY
Type	5000 mAh	5000 mAh

What is the difference between VIVO Y3S (2021) and OPPO A77S in countries.United States?