Video: Samsung Galaxy S4 launch demonstrates new features The new Galaxy S4 features a touchscreen that detects when a user's finger is hovering over the screen to display additional preview information, as well as technology that automatically pauses videos if a user looks away from the screen. It also includes new features that monitor a user's well-being. Accessories for the phone will include scales and a heart-rate monitor from Samsung as well as a blood pressure and blood sugar monitor from other companies. The S4 goes on sale in April and will also feature a significantly upgraded camera which features 13MP resolution and can take pictures or record simultaneously from both its front and rear. At the launch of the Samsung Galaxy S4 in New York, actors helped the designers demonstrate the new features in a Broadway-like show.