A first look at the hardware and software of the fundamentally redesigned and re-engineered Apple Watch Series 4. Featuring the largest Apple Watch display yet. New watch faces. An electrical heart sensor. A Digital Crown with haptic feedback. And a new gold stainless steel case. Learn more at https://apple.co/2Of9Jk6 . The Apple Watch Series 4 commercial features the song “Supernova” by The Hand.