Difference between APPLE WATCH SERIES 8 ALUMINUM and VIVO Y51 ?

	PRODUCT 1	PRODUCT 2
	APPLE APPLE WATCH SERIES 8 ALUMINUM	VIVO VIVO Y51
VERSION
Announced	September 2022	2020
Release date	September 2022	2020
NETWORK
Technology	4G	GSM / HSPA / LTE
DEVICE
Dimensions	45 x 38 x 10.7 mm (1.77 x 1.50 x 0.42 in)	163.9 x 75.3 x 8.4 mm (6.45 x 2.96 x 0.33 in)
Weight	32 (g41mm) or 38.8 (g45mm)	188 (g6.63 oz)
S.I.M.		Dual SIM
Design	Glass front,ceramic/sapphire crystal back,aluminum frame,	16MP
Other	IP6X certified,50m water resistant,ECG certified,
SCREEN
langfront.Type	Retina LTPO OLED	IPS LCD
Size	1.9 inches	6.58 inches
Resolution	484 x 396 pixels	1080 x 2408 pixels
Protection	Ion-X strengthened glass

PLATFORM
Operating system	watchOS 9.0	Android 11,Funtouch 11,
Chipset	Apple S8	Qualcomm SDM665 Snapdragon 665 (11nm)
Processor	Dual-core	Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU	PowerVR	Adreno 610
MEMORY
Card slot	❌	microSDXC
Internal & RAM	32GB 1GB RAM	128GB 8GB RAM
CAMERA
Main	❌	48 MP + 8 MP + 2 MP
SOUND
Loudspeaker	✔️	✔️
Jack 3,5 mm	❌	✔️
CONNECTIVITY
Wifi	dual-band	✔️
Bluetooth	5.0	✔️
GPS	✔️	✔️
NFC	✔️	❌
Radio	❌	FM Radio
USB	❌	Type-C 2.0
CHARACTERISTICS
Sensors	Accelerometer,gyro,heart rate,barometer,always-on altimeter,compass,SpO2,VO2max,temperature (body),Temperature sensin,Natural language commands and dictation,Ultra Wideband (UWB) support,	Fingerprint (side-mounted),accelerometer,gyro,proximity,compass / Fingerprint (lateral),
Various	Wireless fast charging	Fast Charging 18W / Fast battery charge 18W
BATTERY
Type	308 mAh	5000 mAh

What is the difference between APPLE WATCH SERIES 8 ALUMINUM and VIVO Y51 ?