Difference between REALME Q2I and OPPO A31 ?

	PRODUCT 1	PRODUCT 2
	REALME REALME Q2I	OPPO OPPO A31
VERSION
Announced	2020
Release date	2020	2020
NETWORK
Technology	5G	4G
DEVICE
Dimensions	164.4 x 76 x 8.6 mm (6.47 x 2.99 x 0.34 in)
Weight	189.5 (g6.70 oz)	180 (g6.35 oz)
S.I.M.	Dual SIM / Double SIM	Dual SIM
Design	8 MP	8 MP
Other
SCREEN
langfront.Type	IPS LCD	IPS LCD
Size	6.5 inches	6.5 inches
Resolution	720 x 1600 pixels	720 x 1600 pixels
Protection		Gorilla Glass 3

PLATFORM
Operating system	Android 10,realme UI,	Android 9.0 (Pie),ColorOS 6.1,
Chipset	MediaTek Dimensity 720 5G (7nm)	Mediatek MT6765V/CB Helio P35 (12nm)
Processor	Octa-core (2x2.0 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)	Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
GPU	Mali-G72 MC3	PowerVR GE8320
MEMORY
Card slot	❌	microSDXC
Internal & RAM	128GB 4GB RAM	64GB 4GB RAM or 128GB 4GB RAM or 128GB 6GB RAM
CAMERA
Main	13 MP + 2 MP + 2 MP	12 MP + 2 MP + 2 MP
SOUND
Loudspeaker	✔️	✔️
Jack 3,5 mm	✔️	✔️
CONNECTIVITY
Wifi	✔️	✔️
Bluetooth	✔️	✔️
GPS	✔️	✔️
NFC	❌	❌
Radio	❌	FM Radio
USB	Type-C 2.0	microUSB 2.0
CHARACTERISTICS
Sensors	Fingerprint (rear-mounted),accelerometer,proximity,compass / Fingerprint (rear mounted),	Fingerprint (rear-mounted),accelerometer,gyro,proximity,compass / Fingerprint (rear mounted),accelerometer,gyroscope,proximity,compass,
Various	Fast Charging 18W / Fast battery charge 18W
BATTERY
Type	5000 mAh	4230 mAh

What is the difference between REALME Q2I and OPPO A31 ?