Difference between VIVO NEX DUAL DISPLAY and LAVA Z2 MAX ?

	PRODUCT 1	PRODUCT 2
	VIVO VIVO NEX DUAL DISPLAY	LAVA LAVA Z2 MAX
VERSION
Announced	2018	May 2021
Release date	2018	May 2021
NETWORK
Technology		4G
DEVICE
Dimensions	157.2 x 75.3 x 8.1 mm
Weight	199 g	216 (g7.62 oz)
S.I.M.		Dual SIM
Design	❌	8 MP
Other
SCREEN
langfront.Type		IPS LCD
Size	6.39 inches 1080 x 2340 p + 5.49 inches 1080 x 1920 p	7.0 inches
Resolution		720 x 1640 pixels
Protection

PLATFORM
Operating system	Android 9.0 (Pie)	Android 10 (Go edition)
Chipset	Qualcomm SDM845 Snapdragon 845 (10nm)	Quad-core 1.8 GHz
Processor	Octa-core (4x2.7 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver)	--
GPU	Adreno 630
MEMORY
Card slot	❌	microSDXC
Internal & RAM	128 GB, 10 GB RAM	32GB 2GB RAM
CAMERA
Main	12 MP + 2 MP + TOF Camera (3D)	13 MP + 2 MP
SOUND
Loudspeaker	✔️	✔️
Jack 3,5 mm	✔️	✔️
CONNECTIVITY
Wifi	✔️	✔️
Bluetooth	✔️	5.0
GPS	✔️	✔️
NFC		❌
Radio	❌	FM Radio
USB	2.0,Type-C 1.0,	USB Type-C 2.0
CHARACTERISTICS
Sensors	Fingerprint reader under the screen	Accelerometer / Accelerometer
Various	Charge rapide - accelerometer, gyro, proximity, compass
BATTERY
Type	3500 mAh	6000 mAh

What is the difference between VIVO NEX DUAL DISPLAY and LAVA Z2 MAX ?