Difference between OPPO A91 and ? in countries.United States

	PRODUCT 1	PRODUCT 2
	OPPO OPPO A91
VERSION
Announced	2019
Release date	2019
NETWORK
Technology
DEVICE
Dimensions
Weight	172 g
S.I.M.	Double SIM
Design	16MP
Other
SCREEN
langfront.Type
Size	6.4 inches
Resolution	1080 x 2400 pixels
Protection

PLATFORM
Operating system	Android 9.0 (Pie); ColorOS 6.1
Chipset	Mediatek MT6771V Helio P70 (12nm)
Processor	Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
GPU	Mali-G72 MP3
MEMORY
Card slot	microSD, jusqu`à 256 Go
Internal & RAM	128GB 8GB RAM
CAMERA
Main	48 MP + 8 MP + 2 MP + 2 MP
SOUND
Loudspeaker	✔️
Jack 3,5 mm	✔️
CONNECTIVITY
Wifi	✔️
Bluetooth	✔️
GPS	✔️
NFC
Radio	FM Radio
USB	2.0,Type-C 1.0,
CHARACTERISTICS
Sensors	Fingerprint (under screen,optical),accelerometer,gyroscope,proximity,compass,
Various	30W fast battery charging
BATTERY
Type	4025 mAh

What is the difference between OPPO A91 and in countries.United States?