Difference between VIVO IQOO U1X and SAMSUNG GALAXY M21 ? in United States

	PRODUCT 1	PRODUCT 2
	VIVO VIVO IQOO U1X	SAMSUNG SAMSUNG GALAXY M21
VERSION
Announced	2020	2020
Release date	2020	2020
NETWORK
Technology	GSM / HSPA / LTE
DEVICE
Dimensions	164.4 x 76.3 x 8.4 mm (6.47 x 3.00 x 0.33 in)	159 x 75.1 x 8.9 mm
Weight	192.3 (g6.77 oz)	188 g
S.I.M.	Dual SIM / Double SIM ☺	Double SIM
Design	8 MP	20MP
Other
SCREEN
langfront.Type	IPS LCD
Size	6.51 inches ☺	6.4 inches
Resolution	720 x 1600 pixels ↓↓	1080 x 2340 pixels
Protection		Gorilla Glass 3

PLATFORM
Operating system	Android 10,IQOO UI 1.0,	Android 10.0; One UI 2
Chipset	Qualcomm SM6115 Snapdragon 662 (11nm) ↓↓	Exynos 9611 (10nm)
Processor	Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)	Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
GPU	Adreno 610 ↓↓	Mali-G72 MP3
MEMORY
Card slot	No / non ↓↓	microSDXC
Internal & RAM	64GB 4GB RAM, 64GB 6GB RAM, 128GB 6GB RAM →	64 GB, 4 GB RAM
CAMERA
Main	13 MP + 2 MP + 2 MP ↓↓	48 MP + 8 MP + 5 MP
SOUND
Loudspeaker	✔️	✔️
Jack 3,5 mm	✔️	✔️
CONNECTIVITY
Wifi	✔️	✔️
Bluetooth	✔️	✔️
GPS	✔️	✔️
NFC	❌
Radio		FM Radio,RDS,registration,
USB	microUSB 2.0	2.0,Type-C 1.0,
CHARACTERISTICS
Sensors	Fingerprint (side-mounted),accelerometer,proximity,compass / Fingerprint (side mounted) ☺,	Fingerprint (rear mounted),accelerometer,gyroscope,proximity,compass,
Various	Fast Charging 18W / Fast battery charge 18W ☺	15W fast battery charging
BATTERY
Type	5000 mAh ♥♥	6000 mAh

What is the difference between VIVO IQOO U1X and SAMSUNG GALAXY M21 in United States?