Difference between ZTE AXON 20 4G and VIVO S1 PRO ? in countries.United States

	PRODUCT 1	PRODUCT 2
	ZTE ZTE AXON 20 4G	VIVO VIVO S1 PRO
VERSION
Announced	2020	2019
Release date	2020	2019
NETWORK
Technology	GSM / HSPA / LTE
DEVICE
Dimensions	172.1 x 77.9 x 8 mm (6.78 x 3.07 x 0.31 in)	157.3 x 74.7 x 8.2 mm
Weight	198 (g6.98 oz)	185 g
S.I.M.	Dual SIM	Double SIM
Design	32MP	32 MP motorized popup
Other
SCREEN
langfront.Type	OLED
Size	6.92 inches	6.39 inches
Resolution	1080 x 2460 pixels	1080 x 2340 pixels
Protection

PLATFORM
Operating system	Android 10,MiFavor 10.5,	Android 9.0 (Pie); Funtouch 9
Chipset	Unisoc UMS512T	Qualcomm SDM675 Snapdragon 675 (11nm)
Processor	Octa-core (2x2.0 GHz Cortex-A75 & 6x2.0 GHz Cortex-A55)	Octa-core (2x2.0 GHz Kryo 460 Gold & 6x1.7 GHz Kryo 460 Silver)
GPU		Adreno 612
MEMORY
Card slot	microSDXC	microSD, jusqu`à 256 Go
Internal & RAM	128GB 6GB RAM	256 GB, 6 GB RAM or 128 GB, 8 GB RAM
CAMERA
Main	64 MP + 8 MP + 2 MP + 2 MP	48 MP + 8 MP + 5 MP
SOUND
Loudspeaker	✔️	✔️
Jack 3,5 mm	❌	✔️
CONNECTIVITY
Wifi	✔️	✔️
Bluetooth	✔️	✔️
GPS	✔️	✔️
NFC	✔️
Radio	❌
USB	Type-C 3.1	microUSB 2.0
CHARACTERISTICS
Sensors	Fingerprint (under display,optical),accelerometer,gyro,proximity,compass / Fingerprint (under screen),optical),	Fingerprint (under display),accelerometer,gyroscope,proximity,compass,
Various		18W fast battery charging
BATTERY
Type	4220 mAh	3700 mAh

What is the difference between ZTE AXON 20 4G and VIVO S1 PRO in countries.United States?