Apple Watch Series 9

Features:

Case Size: 45mm

Display: Always-On Retina LTPO OLED display

Edge-to-edge display

Up to 2000 nits maximum brightness

1 nit minimum brightness

Chip:   S9 SiP with 64-bit dual-core processor

4-core Apple Neural Engine

Power & Life battery: Built-in rechargeable lithium-ion battery

Up to 18 hours normal use

USB-C fast charging cable

With various high sensors, heart, blood, accelerometer, gyroscope .