With Chromecast built-in, you’re already signed into all of your apps on your phone, so you don’t need to log in again. Plus, you can save yourself time by not using a clunky on-screen keyboard. Just tap the Cast button in your favorite Chromecast-enabled app to start watching on TV. With Chromecast built-in, you use the same familiar mobile apps you already know and love - now with your TV. Chromecast built-in keeps getting better as your phone gets better. Lots of devices are introducing voice capabilities, but only Chromecast built-in TVs support the full voice capabilities a phone can offer.