Difference between OPPO R15X and UMIDIGI A11 PRO MAX ? in countries.United States

	PRODUCT 1	PRODUCT 2
	OPPO OPPO R15X	UMIDIGI UMIDIGI A11 PRO MAX
VERSION
Announced	2018	August 2021
Release date	2018	August 2021
NETWORK
Technology		4G
DEVICE
Dimensions
Weight		225 g - 7.94 oz
S.I.M.		Dual SIM
Design	25MP	24MP
Other
SCREEN
langfront.Type		IPS LCD
Size	6.4 inches	6.8 inches
Resolution	1080 x 2340 pixels	1080 x 2460 px
Protection		Scratch resistant

PLATFORM
Operating system	Android 8.1 (Oreo)	Android 11
Chipset		MediaTek Helio G80 (12nm)
Processor	Octa-core (4x2.0 GHz Kryo 260 & 4x1.8 GHz Kryo 260)	Octa-Core (2x Cortex A75 2.0 GHz + 6x Cortex A55 1.8 GHz)
GPU		ARM Mali-G52 2EEMC2
MEMORY
Card slot	❌	microSDXC
Internal & RAM	128 GB, 6 GB RAM	128GB 4GB RAM
CAMERA
Main	Dual 16 MP & 2 MP	48 MP (ƒ/ 1.79) + 16 MP + 3 MP
SOUND
Loudspeaker	✔️	✔️
Jack 3,5 mm	✔️	✔️
CONNECTIVITY
Wifi		✔️
Bluetooth		5.0
GPS	✔️	GPS,A-GPS,GLONASS,Galileo,
NFC		❌
Radio	❌	FM Radio
USB	microUSB 2.0,	USB Type C
CHARACTERISTICS
Sensors	Fingerprint reader under the screen	Fingerprint (side-mounted),Proximity,Accelerometer,compass,gyro,Infrared port,
Various
BATTERY
Type	3500 mAh	5150 mAh

What is the difference between OPPO R15X and UMIDIGI A11 PRO MAX in countries.United States?