Difference between REALME WATCH S2 and REALME WATCH 2 ?

	PRODUCT 1	PRODUCT 2
	REALME REALME WATCH S2	REALME REALME WATCH 2
VERSION
Announced	July 2024	May 2021
Release date	August 2024	May 2021
NETWORK
Technology	❌	❌
DEVICE
Dimensions	46.5 x 46.5 x 11 mm (1.83 x 1.83 x 0.43 in)
Weight	41 (g1.45 oz)	38 (g1.34 oz)
S.I.M.		❌
Design		Glass front,plastic back,plastic frame / Glass facade,plastic back,plastic frame,
Other	IP68 dust/water resistant (up to 1.5m for 30 min) ---- Waterproof (5ATM) ----- Compatible with standard 22mm straps	IP68 dust/water resistant - Not swim proof
SCREEN
langfront.Type	AMOLED	IPS LCD
Size	1.43 inches	1.4 inches
Resolution	466 x 466 pixels	320 x 320 pixels
Protection

PLATFORM
Operating system		--
Chipset
Processor		--
GPU
MEMORY
Card slot		❌
Internal & RAM		--
CAMERA
Main	❌	❌
SOUND
Loudspeaker	✔️	❌
Jack 3,5 mm	❌	❌
CONNECTIVITY
Wifi	❌	❌
Bluetooth	✔️	✔️
GPS		❌
NFC	❌	❌
Radio	❌	❌
USB	❌	❌
CHARACTERISTICS
Sensors	Accelerometer,heart rate,SpO2,	Accelerometer,heart rate,SpO2 / Accelerometer,cardiac frequency,SpO2,
Various
BATTERY
Type	380 mAh	Li-Ion langproduct.315 mAh

What is the difference between REALME WATCH S2 and REALME WATCH 2 ?