Yes, this is possible without any problems, the TV has built-in Wi-Fi and can be connected to a Wi-Fi router or also to a hotspot, e.g. from a smartphone. However, Netflix in HD quality is not possible.
Hello, for Apple devices, the TV should have AirPlay. For Android it is called Miracast. I don't think this TV can do either. The cheapest Airplay TV would probably be the LG 43UP7700. For Miracast, it would work if you bought a "Fire TV Stick" (approx. CHF 45.-). Unfortunately, I can't tell you when the TV will be available.