44mm case LTPO OLED retinal display Lumens up to 1000 nits Ion-X glass screen Models of GPS and GPS + Cellular 64-bit dual-core S8 SiP with a W3 wireless chip Crown digital with haptic feedback An optical heart sensor of the second generation Notifications of elevated and decreased heart rates Notification of irregular rhythms International Emergency Calling Emergency SOS Fall detection and crash detection Waterproof GPS/GNSS Compass with 50-meter LTE and UMTS Wi-Fi Bluetooth 5.3 Altimeter that is always on 32GB built-in speaker and microphone