Difference between OPPO R15X and ? in United States

	PRODUCT 1	PRODUCT 2
	OPPO OPPO R15X
VERSION
Announced	2018
Release date	2018
NETWORK
Technology
DEVICE
Dimensions
Weight
S.I.M.
Design	25MP
Other
SCREEN
langfront.Type
Size	6.4 inches
Resolution	1080 x 2340 pixels
Protection

PLATFORM
Operating system	Android 8.1 (Oreo)
Chipset
Processor	Octa-core (4x2.0 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
GPU
MEMORY
Card slot	❌
Internal & RAM	128 GB, 6 GB RAM
CAMERA
Main	Dual 16 MP & 2 MP
SOUND
Loudspeaker	✔️
Jack 3,5 mm	✔️
CONNECTIVITY
Wifi
Bluetooth
GPS	✔️
NFC
Radio	❌
USB	microUSB 2.0,
CHARACTERISTICS
Sensors	Fingerprint reader under the screen
Various
BATTERY
Type	3500 mAh

What is the difference between OPPO R15X and in United States?