49mm (1.92″) 502x410pixels, 326PPI, Always-On Retina LTPO OLED, Flat sapphire crystal display, 3000 nits brightness
64GB 1GB RAM, Apple S9 SiP with 64-bit dual-core processor, 4-core Neural Engine, PowerVR GPU, 564mAh Battery
watchOS 10, upgradable to watchOS 10.4, Bluetooth 5.3, 100m water resistant (WR100), 40m swimproof/diving (EN13319)