Difference between VIVO U3 and VIVO V21E ?

	PRODUCT 1	PRODUCT 2
	VIVO VIVO U3	VIVO VIVO V21E
VERSION
Announced	2019
Release date	2019	2021
NETWORK
Technology		4G
DEVICE
Dimensions	162.2 x 76.5 x 8.9 mm
Weight	193 g	171 (g6.03 oz)
S.I.M.	Double SIM	Dual SIM
Design	16MP	44 MP (4K@30fps,1080p@30fps),
Other
SCREEN
langfront.Type		AMOLED,HDR10,
Size	6.53 inches	6.44 inches
Resolution	1080 x 2340 pixels	1080 x 2400 pixels
Protection

PLATFORM
Operating system	Android 9.0 (Pie); Funtouch 9.0	Android 11,Funtouch 11.1,
Chipset	Qualcomm SDM675 Snapdragon 675 (11nm)	Qualcomm SM7125 Snapdragon 720G (8nm)
Processor	Octa-core (2x2.0 GHz Kryo 460 Gold & 6x1.7 GHz Kryo 460 Silver)	Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver)
GPU	Adreno 612	Adreno 618
MEMORY
Card slot	microSD, jusqu`à 256 Go	microSDXC
Internal & RAM	64GB 4GB RAM, 64GB 6GB RAM	128GB 8GB RAM
CAMERA
Main	16 MP + 8 MP + 2 MP	64 MP + 8 MP (120˚) + 2 MP
SOUND
Loudspeaker	✔️	✔️
Jack 3,5 mm	✔️	✔️
CONNECTIVITY
Wifi	✔️	✔️
Bluetooth	✔️	✔️
GPS	✔️	✔️
NFC		❌
Radio	FM Radio	FM Radio
USB	microUSB 2.0	USB Type-C 2.0
CHARACTERISTICS
Sensors	Fingerprint (rear mounted),accelerometer,gyroscope,proximity,compass,	Fingerprint (under display,optical),accelerometer,proximity,compass / Fingerprint (under screen),optical),accelerometer,proximity,compass,
Various	18W fast battery charging	Fast Charging 33W / Fast battery charge 33W
BATTERY
Type	5000 mAh	4000 mAh

What is the difference between VIVO U3 and VIVO V21E ?