Difference between SONY XPERIA XZ2 and VIVO V21 5G ? in United States

	PRODUCT 1	PRODUCT 2
	SONY SONY XPERIA XZ2	VIVO VIVO V21 5G
VERSION
Announced		May 2021
Release date	2018	May 2021
NETWORK
Technology	GSM / HSPA / LTE	5G
DEVICE
Dimensions	153 x 72 x 11.1 mm
Weight	198 g	176 (g6.21 oz)
S.I.M.		Hybrid Dual SIM
Design	5 MP	44 MP (4K@30fps,1080p@30fps),
Other
SCREEN
langfront.Type		AMOLED,90Hz,HDR10+,
Size	5.7 inches	6.44 inches
Resolution	1080 x 2160 pixels	1080 x 2400 pixels
Protection	Gorilla Glass 5

PLATFORM
Operating system	Android 8.0	Android 11,Funtouch 11.1,
Chipset		MediaTek MT6853 Dimensity 800U 5G (7nm)
Processor	4x2.7 GHz Kryo & 4x1.7 GHz Kryo ثماني النواة	Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU		Mali-G57 MC3
MEMORY
Card slot	microSD	microSDXC
Internal & RAM	64 GB, 4/6 GB RAM	128GB 8GB RAM or 256GB 8GB RAM
CAMERA
Main	19 MP	64 MP + 8 MP (120˚) + 2 MP
SOUND
Loudspeaker	✔️	✔️
Jack 3,5 mm	❌	❌
CONNECTIVITY
Wifi	Wi-Fi 802.11 a/b/g/n/ac,dual-band,Wi-Fi Direct,DLNA,hotspot,	✔️
Bluetooth	5.0, A2DP, aptX HD, LE	✔️
GPS	✔️	✔️
NFC	✔️	❌
Radio	❌	❌
USB	3.1,Type-C,	USB Type-C 2.0
CHARACTERISTICS
Sensors	Fingerprint (rear-mounted),accelerometer,gyro,proximity,barometer,compass,color spectrum,	Fingerprint (under display,optical),accelerometer,gyro,proximity,compass / Fingerprint (under screen),optical),accelerometer,gyroscope,proximity,compass,
Various		Fast Charging 33W / Fast battery charge 33W
BATTERY
Type		4000 mAh

What is the difference between SONY XPERIA XZ2 and VIVO V21 5G in United States?