The Swing Caddie SC4 is both a complete simulator andportable launch monitor. In simulator mode, the SC4connects with the included MySwingCaddie App, providing a complete virtual display along with metrics and stats. In outdoor use, the SC4 can be used completely standalone with its vivid display that shows swing and ball flight metrics. connect directly to a smartphone or tablet via Bluetooth allowing golfers to save and track their data, record swings, and produce swing overlays.