Difference between XIAOMI 15 and REALME WATCH S2 ?

	PRODUCT 1	PRODUCT 2
	XIAOMI XIAOMI 15	REALME REALME WATCH S2
VERSION
Announced	October 2024	July 2024
Release date	October 2024	August 2024
NETWORK
Technology	5G	❌
DEVICE
Dimensions	152.3 x 71.2 x 8.1 / 8.4 / 8.5 mm	46.5 x 46.5 x 11 mm (1.83 x 1.83 x 0.43 in)
Weight	189 / 191 / 192 g	41 (g1.45 oz)
S.I.M.
Design	32 MP (4K@60fps,1080p@60fps),
Other	IP68 dust/water resistant	IP68 dust/water resistant (up to 1.5m for 30 min) ---- Waterproof (5ATM) ----- Compatible with standard 22mm straps
SCREEN
langfront.Type	LTPO OLED,1B colors,120Hz,Dolby Vision,HDR10+,	AMOLED
Size	6.36 inches	1.43 inches
Resolution	1200 x 2670 pixels	466 x 466 pixels
Protection	Shatterproof glass
PLATFORM
Operating system	Android 15, HyperOS 2
Chipset	Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm)
Processor	Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
GPU	Adreno 830
MEMORY
Card slot	❌
Internal & RAM	256GB 12GB RAM or 512GB 12GB RAM or 512GB 16GB RAM or 1TB 16GB RAM
CAMERA
Main	50 MP (f/1.6)(Optical Image Stabilization) + 50 MP (3x optical zoom) + 50 MP (115˚)	❌
SOUND
Loudspeaker	Yes, with stereo speakers	✔️
Jack 3,5 mm	❌	❌
CONNECTIVITY
Wifi	✔️	❌
Bluetooth	5.4	✔️
GPS	✔️
NFC	✔️	❌
Radio	❌	❌
USB	USB Type-C 3.2	❌
CHARACTERISTICS
Sensors	Fingerprint (under display,ultrasonic),accelerometer,proximity,gyro,compass,barometer,color spectrum,infrared port,	Accelerometer,heart rate,SpO2,
Various	Fast Charging 90W, Fast wireless charging 50W, Reverse wireless charging 10W
BATTERY
Type	5400 mAh	380 mAh

What is the difference between XIAOMI 15 and REALME WATCH S2 ?