Difference between XIAOMI MI 9T and VIVO WATCH ?

	PRODUCT 1	PRODUCT 2
	XIAOMI XIAOMI MI 9T	VIVO VIVO WATCH
VERSION
Announced	2019	2020
Release date	2019	2020
NETWORK
Technology		Pas de connectivité cellulaire / No cellular connectivity
DEVICE
Dimensions	156.7 x 74.3 x 8.8 mm	46 x 46 x 10.6 mm (1.81 x 1.81 x 0.42 in)
Weight	191 g	46.8 (g1.66 oz)
S.I.M.	Double SIM	❌
Design	20 MP motorized popup	Glass facade,stainless steel frame / Glass front,stainless steel frame,
Other	HDR	50 m résistant à l`eau / 50m water resistant
SCREEN
langfront.Type		AMOLED
Size	6.39 inches	1.39 inches
Resolution	1080 x 2340 pixels	454 x 454 pixels
Protection	Gorilla Glass 5
PLATFORM
Operating system	Android 9.0 (Pie); MIUI 10	-
Chipset	Qualcomm SDM730 Snapdragon 730 (8nm)
Processor	Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver)	-
GPU	Adreno 618
MEMORY
Card slot	❌	-
Internal & RAM	64/128 GB, 6 GB RAM	2GB
CAMERA
Main	48 MP + 8 MP + 13 MP	❌
SOUND
Loudspeaker	✔️	✔️
Jack 3,5 mm	✔️	❌
CONNECTIVITY
Wifi	✔️	❌
Bluetooth	✔️	✔️
GPS	✔️	✔️
NFC	✔️	✔️
Radio	FM Radio	❌
USB	2.0,Type-C 1.0,	❌
CHARACTERISTICS
Sensors	Fingerprint (under display),accelerometer,gyroscope,proximity,compass,	Accelerometer,gyro,heart rate,barometer,compass,altimeter,SpO2,
Various	18W fast battery charging	Wireless charging 10W / Wireless charging 10W
BATTERY
Type	4000 mAh	478 mAh

What is the difference between XIAOMI MI 9T and VIVO WATCH ?