1.9" (484x396) Always-on Retina LTPO OLED Display, S9 SiP CPU, 50m water resistant, 64GB Memory, Wi-Fi, BT 5.3, GPS, UWB, IP6X, ECG certified, Up to 18 hours battery, Fast Charge, 39 gram Always-On technology keeps the display on so you can see information at a glance. And with a maximum brightness of 2000 nits, twice that of Series 8 and SE, it's easier to read in bright sunlight. Detailed watch faces look stunning, even when your wrist is down. The edge-to-edge design accommodates your favorite complications and makes tapping, typing, and swiping easy. 100% recycled aluminum case. Features a thick front crystal with a flat base and robust geometry for durability and crack resistance. Ion-X front glass.