Difference between VIVO NEX DUAL DISPLAY and XIAOMI WATCH 2 PRO ?

	PRODUCT 1	PRODUCT 2
	VIVO VIVO NEX DUAL DISPLAY	XIAOMI XIAOMI WATCH 2 PRO
VERSION
Announced	2018	September 2023
Release date	2018	October 2023
NETWORK
Technology		4G
DEVICE
Dimensions	157.2 x 75.3 x 8.1 mm	47.6 x 45.9 x 11.8 mm (1.87 x 1.81 x 0.46 in)
Weight	199 g	54.5 (g1.94 oz)
S.I.M.
Design	❌	Stainless steel frame
Other		Waterproof (5ATM)
SCREEN
langfront.Type		AMOLED
Size	6.39 inches 1080 x 2340 p + 5.49 inches 1080 x 1920 p	1.43 inches
Resolution		466 x 466 pixels
Protection
PLATFORM
Operating system	Android 9.0 (Pie)	Proprietary OS
Chipset	Qualcomm SDM845 Snapdragon 845 (10nm)	Qualcomm Snapdragon W5+ Gen 1 (4nm)
Processor	Octa-core (4x2.7 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver)
GPU	Adreno 630
MEMORY
Card slot	❌	❌
Internal & RAM	128 GB, 10 GB RAM	32GB 2GB RAM
CAMERA
Main	12 MP + 2 MP + TOF Camera (3D)	❌
SOUND
Loudspeaker	✔️	✔️
Jack 3,5 mm	✔️	❌
CONNECTIVITY
Wifi	✔️	dual-band
Bluetooth	✔️	5.2
GPS	✔️	✔️
NFC		✔️
Radio	❌	❌
USB	2.0,Type-C 1.0,	❌
CHARACTERISTICS
Sensors	Fingerprint reader under the screen	Accelerometer,gyro,compass,barometer,heart rate,SpO2,
Various	Charge rapide - accelerometer, gyro, proximity, compass
BATTERY
Type	3500 mAh	495 mAh

What is the difference between VIVO NEX DUAL DISPLAY and XIAOMI WATCH 2 PRO ?