Difference between REALME WATCH 2 and OPPO A73 ?

	PRODUCT 1	PRODUCT 2
	REALME REALME WATCH 2	OPPO OPPO A73
VERSION
Announced	May 2021	2020
Release date	May 2021	2020
NETWORK
Technology	❌	GSM / HSPA / LTE
DEVICE
Dimensions		159.8 x 72.9 x 7.5 mm (6.29 x 2.87 x 0.30 in)
Weight	38 (g1.34 oz)	163 (g5.75 oz)
S.I.M.	❌	Dual SIM
Design	Glass front,plastic back,plastic frame / Glass facade,plastic back,plastic frame,	16MP
Other	IP68 dust/water resistant - Not swim proof
SCREEN
langfront.Type	IPS LCD	AMOLED
Size	1.4 inches	6.44 inches
Resolution	320 x 320 pixels	1080 x 2400 pixels
Protection		Corning Gorilla Glass 3
PLATFORM
Operating system	--	Android 10,ColorOS 7.2,
Chipset		Qualcomm SM6115 Snapdragon 662 (11nm)
Processor	--	Octa-core (4x2.3 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU		Adreno 610
MEMORY
Card slot	❌	microSDXC
Internal & RAM	--	128GB 4GB RAM, 128GB 6GB RAM
CAMERA
Main	❌	16 MP + 8 MP + 2 MP + 2 MP
SOUND
Loudspeaker	❌	✔️
Jack 3,5 mm	❌	✔️
CONNECTIVITY
Wifi	❌	✔️
Bluetooth	✔️	✔️
GPS	❌	✔️
NFC	❌	✔️
Radio	❌	FM Radio
USB	❌	Type-C 2.0
CHARACTERISTICS
Sensors	Accelerometer,heart rate,SpO2 / Accelerometer,cardiac frequency,SpO2,	Fingerprint (under display,optical),accelerometer,gyro,proximity,compass / Fingerprint (under screen),optical),
Various		30W fast battery charging
BATTERY
Type	Li-Ion langproduct.315 mAh	4015 mAh

What is the difference between REALME WATCH 2 and OPPO A73 ?