What it is This onn 55″ Class 4K LED Roku Smart TV is now $198 after a $50 discount. It features a 55″ 4K Ultra HD DLED panel ...

The onn. 65″ Class 4K UHD 2160P LED Roku Smart Television is the perfect choice for a stunning viewing experience. This TV ...

($398), TCL ($448), Hisense ($478), LG (538), and more. The onn. 75” Class 4K UHD (2160P) LED Roku Smart Television was $448 but shoppers can bring the price down to $398 for a limited time only.

Fast becoming mainstays of gamers and creative pros, 4K monitors are falling in price—but getting more complicated to buy. Here's how to shop for an ultra-high-definition (UHD) display ...